Annual Report (SEC Filing - 40-F)

Exhibit 99.1

WHEATON PRECIOUS METALS CORP.

ANNUAL INFORMATION FORM

FOR THE YEAR ENDED DECEMBER 31, 2020

TABLE OF CONTENTS

Information in this annual information form is as of March 29, 2021 unless otherwise indicated.

Wheaton is a trademark of Wheaton Precious Metals Corp. in Canada, the United States and certain other jurisdictions.

This annual information form contains forward-looking statements and information. Please see 'Cautionary Note Regarding Forward-Looking Statements' on page 99 for material risks, assumptions and important disclosure associated with this information.

This annual information form contains references to United States dollars and Canadian dollars. All dollar amounts referenced, unless otherwise indicated, are expressed in United States dollars. Canadian dollars are referred to herein as 'Canadian dollars' or 'C$'. See page 103 for details on currency presentation and exchange rate information.

Wheaton Precious Metals Corp. provides certain links to websites in this annual information form. No such websites are incorporated by reference herein.

WHEATON PRECIOUS METALS 2020 ANNUAL INFORMATION FORM

CORPORATE STRUCTURE

Wheaton Precious Metals Corp. ('Wheaton' or the 'Company') is a corporation that, pursuant to Articles of Continuance dated December 17, 2004, is governed by the Business Corporations Act (Ontario) (the 'Act').

Wheaton's head office is located at 3500 - 1021 West Hastings Street, Vancouver, British Columbia, V6E 0C3 and its registered office is located at Suite 2100, 40 King Street West, Toronto, Ontario, M5H 3C2.

The Company's active subsidiaries are Wheaton Precious Metals International Ltd. ('Wheaton International') (formerly Silver Wheaton (Caymans) Ltd.) and Wheaton Precious Metals (Cayman) Co. ('Wheaton Cayman'), each of which is wholly-owned by the Company and is governed by the laws of the Cayman Islands, and Silver Wheaton Luxembourg S.a.r.l. ('Silver Wheaton Luxembourg') which is wholly-owned by Wheaton International and is governed by the laws of Luxembourg. As used in this annual information form, except as otherwise required by the context, reference to 'Wheaton' or the 'Company' means Wheaton Precious Metals Corp., Wheaton International, Silver Wheaton Luxembourg and Wheaton Cayman.

On May 10, 2017, the Company changed its name from 'Silver Wheaton Corp.' to 'Wheaton Precious Metals Corp.' and changed its Toronto Stock Exchange ('TSX') and New York Stock Exchange ('NYSE') ticker symbol from 'SLW' to 'WPM.' Concurrent with the name change, the Company's web domain changed to www.wheatonpm.com. Information contained on Wheaton's website should not be deemed to be a part of this annual information form or incorporated by reference herein. On October 28, 2020, the common shares of the Company ('Common Shares') commenced trading on the London Stock Exchange ('LSE').

WHEATON AND ITS PRINCIPAL SUBSIDIARIES

WHEATON PRECIOUS METALS 2020 ANNUAL INFORMATION FORM

GENERAL DEVELOPMENT OF THE BUSINESS

Three Year History

The following is a summary of the three-year history of the Company. Further details concerning these and other transactions can be found under 'Description of the Business'.

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DESCRIPTION OF THE BUSINESS

Acquisition & Production History

Wheaton is a streaming company which generates its revenue primarily from the sale of precious metals. Wheaton enters into purchase agreements ('precious metal purchase agreements' or 'PMPAs') to purchase all or a portion of the precious metals or cobalt production from mines located around the globe for an upfront payment and an additional payment upon the delivery of the precious metal.

As of December 31, 2020, the Company has entered into 25 long-term purchase agreements (three of which are early deposit precious metal purchase agreements), with 19 different mining companies, for the purchase of precious metals and cobalt ('precious metal purchase agreements' or 'PMPA') relating to 24 mining assets which are currently operating, seven which are at various stages of development and one of which has been placed in care and maintenance, located in 12 countries. Wheaton acquires metal production from the counterparties for an initial upfront payment plus an additional cash payment for each ounce or pound delivered which is fixed by contract, generally at or below the prevailing market price. The primary drivers of the Company's financial results are the volume of metal production at the various mines to which the precious metal purchase agreements relate and the price realized by Wheaton upon sale of the metals received. Attributable metal production as referred to in this annual information form is the metal production to which Wheaton is entitled pursuant to the various precious metal purchase agreements.

The Company is actively pursuing future growth opportunities, primarily by way of entering into additional long-term precious metal purchase agreements. There is no assurance, however, that any potential transaction will be successfully completed. The following map illustrates the geographic location of the Company's diversified portfolio of interests in the 24 operating mines and seven development projects comprising its high-quality asset base.

The Common Shares are listed and posted for trading on the the LSE (symbol: WPM), the NYSE (symbol: WPM) and the TSX (symbol: WPM).

Operating Mines (24)Development Projects (7)

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Principal Product

The Company's principal products are precious metals and cobalt that it has agreed to purchase pursuant to PMPAs. The following tables summarize the mineral stream interests currently owned by the Company (collectively, the 'Mining Operations'). Note that statements made in this section contain forward-looking information. Please see 'Cautionary Note Regarding Forward-Looking Statements' for material risks, assumptions and important disclosure associated with this information.

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The following table summarizes the early deposit mineral stream interests currently owned by the Company:

Further details regarding the PMPAs entered into by the Company in respect of these mineral stream interests can be found below:

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San Dimas Mine

In connection with First Majestic's acquisition of all the issued and outstanding common shares of Primero (the 'Acquisition'), on May 10, 2018, the Company terminated the San Dimas SPA and entered into a new precious metal purchase agreement with First Majestic (the 'San Dimas PMPA') to purchase an amount of gold equal to 25% of the life of mine payable gold production from the San Dimas mine plus an additional amount of gold equal to 25% of the life of mine payable silver production from the San Dimas mine converted to gold at a fixed gold to silver exchange ratio of 70:1.¹ The Company paid a total upfront cash payment of $220 million for the San Dimas PMPA and, in addition, will make ongoing payments of $600 per gold ounce delivered. As consideration for terminating the San Dimas SPA, the Company received a cash payment of $220 million and 20,914,590 First Majestic common shares with a fair value of $151 million (the 'First Majestic Shares'), and the Goldcorp Guarantee was terminated in exchange for a payment of $10 million.

Mexican Tax Dispute - In February 2016, Primero announced that its Mexican subsidiary, Primero Empresa Minera S.A. de C.V. ('PEM'), received a legal claim from the Mexican tax authorities, the Servicio de Administración Tributaria ('SAT'), seeking to nullify the Advance Pricing Agreement issued by SAT in 2012 ('APA'). The APA confirmed PEM's ability to pay taxes in Mexico on the sale of silver on actual prices realized by its Mexican subsidiary in connection with silver sales under the San Dimas SPA for the tax years 2010 through 2014.

As disclosed by First Majestic in their MD&A for the period ended December 31, 2020, during 2019, as part of the ongoing annual audits of PEM's tax returns, the SAT issued reassessments for the 2010 to 2012 tax years in the amount of $246.6 million inclusive of interest, inflation, and penalties. The key items relate to the view that PEM should pay taxes based on the market price of silver and denial of the deductibility of interest expense and service fees in Mexico. First Majestic also indicates that in April 2020, SAT issued notifications to PEM to attempt to secure amounts it claims are owed pursuant to its reassessments issued. These notifications impose certain restrictions on PEM including its ability to dispose of its concessions and real properties. First Majestic has challenged SAT's reassessments and dismissals through all domestic means available to them, including annulment suits before the Mexican Federal Tax Court on Administrative Matters ('Federal Court'). In September 2020, First Majestic was served with a decision made by the Federal Court to nullify the APA granted to PEM. The Federal Court's decision directs SAT to re-examine the evidence and basis for the issuance of the APA with retroactive effect, for the following key reasons:

¹ If the average gold to silver price ratio decreases to less than 50:1 or increases to more than 90:1 for a period of 6 months or more, then the '70' shall be revised to '50' or '90', as the case may be, until such time as the average gold to silver price ratio is between 50:1 to 90:1 for a period of 6 months or more in which event the '70' shall be reinstated. Effective April 1, 2020, the fixed gold to silver exchange ratio was revised to 90:1, with the 70:1 ratio being reinstated on October 15, 2020.

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First Majestic states that they filed an appeal of the decision to the Mexican Circuit Courts on November 30, 2020.

First Majestic indicates that if the SAT is successful in retroactively nullifying the APA and issuing reassessments, it would likely have a material adverse effect on First Majestic's results of operations, financial condition and cash flows. PEM would have rights of appeal in connection with any reassessments. First Majestic states that they continue to believe PEM's filings were appropriate and continue to believe its tax filing position based upon the APA is correct. However, they note that should PEM ultimately be required to pay tax on its silver revenues based on market prices without any mitigating adjustments, the incremental income tax for the years 2010-2018 would be approximately $219.2 million, before interest or penalties.

First Majestic has indicated in their MD&A for the period ended December 31, 2020 that while it continues to vigorously defend the validity of the APA and its transfer pricing position, it is also engaging in dialogue with the SAT seeking to resolve matters and bring tax certainty through a negotiated solution. To the extent that First Majestic is not able to defend the validity of the 2012 APA or the SAT determines that the appropriate price to tax sales under the former San Dimas SPA or the new San Dimas PMPA is significantly different from the actual realized prices thereunder, it may have an adverse impact on First Majestic's business, financial condition or results of operations. If the Company was unable to purchase any further gold under the San Dimas PMPA, it may have a material adverse effect on Wheaton's business, financial condition, results of operation and cash flows. In addition, should this occur, there is no assurance that Wheaton would be successful in enforcing its rights under the security interest granted by First Majestic or its other remedies under the San Dimas PMPA. On March 2, 2021, First Majestic announced that it has submitted a Request for Arbitration to the International Centre for Settlement of Investment Disputes, on its own behalf and on behalf of PEM, based on Chapter 11 of the North American Free Trade Agreement.

During the second quarter of 2020, operations at the San Dimas mine were temporarily suspended due to government restrictions focused on reducing the impacts of COVID-19. On May 13, 2020, the federal government of Mexico announced the designation of mining as an essential activity beginning May 18, 2020 and the San Dimas operations resumed during the third quarter and remained in operation for the balance of the year. See 'Risks Relating to the Company - Impact of Epidemics'.

See 'Risks Relating to the Company -Security Over Underlying Assets', 'Risks Relating to the Company - Counterparty Credit and Liquidity Risk' and 'Risks Relating to the Mining Operations - International Operations'.

Los Filos Mine

Corp. ('Equinox') announced that they had completed their previously announced arrangement pursuant to which Equinox acquired all of the issued and outstanding shares of Leagold and assumed Leagold's obligations under the Los Filos PMPA.

During the second quarter of 2020, operations at the Los Filos mine were temporarily suspended due to government restrictions focused on reducing the impacts of COVID-19. On May 13, 2020, the federal government of Mexico announced the designation of mining as an essential activity beginning May 18, 2020 and the Los Filos operations resumed during the third quarter. See 'Risks Relating to the Company - Impact of Epidemics'.

Equinox reported on September 4, 2020 that mining activities at its Los Filos mine were suspended as the result of an illegal road blockade by members of the nearby Carrizalillo community. On December 23, 2020, Equinox reported that the blockade had been removed and access to the mine restored. In Equinox's MD&A for the period ended December 31, 2020, Equinox confirmed that Los Filos resumed operations in late December 2020.

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Zinkgruvan Mine

Yauliyacu Mine

January 1, 2016, Anani will deliver to Wheaton a per annum amount equal to the first 1.5 million ounces of payable silver produced at the Yauliyacu mine and 50% of any excess. The price paid for each ounce of silver delivered under the agreement has been increased by an additional $4.50 per ounce plus, if the market price of silver exceeds $20 per ounce, 50% of the excess, to a maximum of $40 per ounce.

During the term of the contract, Wheaton International has a right of first refusal on any future sales of silver streams from the Yauliyacu mine and a right of first offer on future sales of silver streams from any other mine owned by Glencore International or any of its affiliates at the time of the initial transaction. In addition, Glencore International provided Wheaton with a corporate guarantee.

On March 24, 2020 Glencore International reported that it had put the Yauliyacu mine on care and maintenance in response to the Peruvian emergency decree related to the COVID-19 virus pandemic. The Peruvian government issued a decree on May 3, 2020 indicating large mines would be able to reopen subject to approval of certain protocols and Yauliyacu resumed operations during the third quarter and remained in operation for the balance of the year. See 'Risks Relating to the Company - Impact of Epidemics'.

Stratoni Mine

any future sales of silver streams from any other mine owned by Hellas Gold or European Goldfields. In connection with the Stratoni PMPA, Hellas Gold and European Goldfields provided certain covenants in respect of their obligations.

In October 2015, in order to incentivize additional exploration and potentially extend the limited remaining mine life of the Stratoni mine, Wheaton International and Eldorado agreed to modify the Stratoni PMPA. The primary modification was to increase the production price per ounce of silver delivered to Wheaton International over the current fixed price by

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one of the following amounts: (i) $2.50 per ounce of silver delivered if 10,000 metres of drilling is completed outside of the existing ore body and within Wheaton International's defined area of interest ('Expansion Drilling'); (ii) $5.00 per ounce of silver delivered if 20,000 metres of Expansion Drilling is completed; and (iii) $7.00 per ounce of silver delivered if 30,000 metres of Expansion Drilling is completed. Drilling in all three cases was to be completed by December 31, 2020 in order for the agreed upon increase in production price to be initiated. Eldorado completed a total of 30,000 metres of Expansion Drilling, resulting in a $7.00 per ounce of silver increase.

Peñasquito Mine

a back to back PMPA in respect of the Peñasquito mine. The area of interest for the stream is limited to specific concessions set out in the Peñasquito PMPA. In connection with the Peñasquito PMPA, Goldcorp also provided Silver Wheaton Luxembourg with a corporate guarantee. In April 2019, Newmont Corporation ('Newmont') completed the previously announced acquisition of Goldcorp.

Newmont reported on April 22, that Peñasquito reached a definitive agreement with the San Juan de Cedros community (one of 25 neighboring communities) in Zacatecas, Mexico on land use, water availability, infrastructure and social investments. This includes access to 10,000 hectares for exploration and operational purposes, and resolves all outstanding issues with the community. Newmont confirms that the agreement was reached with the support of Mexico's Ministry of Interior (SEGOB) and representatives of the State of Zacatecas and was signed by elected representatives of the Cedros community and that the agreement expressly states that any future disputes will be resolved through dialogue and free of blockades.

During early April, 2020, operations at the Peñasquito mine were placed on care and maintenance due to government restrictions focused on reducing the impacts of COVID-19. On May 13, 2020, the federal government of Mexico announced the designation of mining as an essential activity beginning May 18, 2020 and the Peñasquito mine resumed operations by the third quarter and remained in operation for the balance of the year. See 'Risks Relating to the Company - Impact of Epidemics'.

See 'Further Disclosure Regarding Mineral Projects on Material Properties - Peñasquito Mine, Mexico' for details regarding the Peñasquito mine.

Keno Hill Mines

operating targets) and the then prevailing market price per ounce of delivered silver. Wheaton is not required to contribute to further capital or exploration expenditures and Alexco has provided a completion guarantee with certain minimum production criteria by specific dates. In connection with the Alexco PMPA, Alexco and each of the parties to the Agreement provided Wheaton with corporate guarantees and certain other security over their assets and the Keno Hill mines.

On June 6, 2014, the Company amended the Alexco PMPA to increase the production payment to be a function of

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the silver price at the time of delivery. In addition, the area of interest was expanded to include properties currently owned by Alexco and properties acquired by Alexco in the future which fall within a one kilometre radius of existing Alexco holdings in the Keno Hill district. The proposed amendment to this production payment was not applicable to the Bermingham deposit area. The amended Alexco PMPA was conditional upon Alexco paying Wheaton $20 million by December 31, 2015, or at Alexco's option up to March 31, 2017. Alexco did not exercise its option to increase the production payment as set out in the June 2014 amendment.

On March 29, 2017, the Company and Alexco agreed to amend the Alexco PMPA to adjust the silver production payment so that it will be a percentage of the spot silver price that increases with lower mill silver head grades and lower silver prices, and decreases with higher mill silver head grades and higher silver prices, subject to certain ceiling and floor grades and prices. In addition, the outside completion date was extended to December 31, 2019 and the area of interest for the Alexco PMPA was expanded to include properties currently owned by Alexco and properties acquired by Alexco in the future which fall within a one kilometre radius of existing Alexco holdings in the Keno Hill mines silver district. As consideration, Alexco issued to Wheaton three million common shares of Alexco which had a fair value of $5 million.

On October 2, 2017, in connection with an option granted by Alexco to Banyan Gold Corp. ('Banyan') over claims covered by the Alexco PMPA, the Company and Banyan entered into an accession agreement under which Banyan agreed to be bound by the terms of the Alexco PMPA in respect of those claims. On December 20, 2018, the Company agreed to amend the Alexco PMPA to extend the outside completion date under the Alexco PMPA to December 31, 2020 and on April 21, 2020, the Company agreed to further extend the outside completion date to December 31, 2021.

On June 24, 2020, Alexco noted its intent to recommence mining operations in the Keno Hill mines. In order to help facilitate the resumption of mining, on August 5, 2020, the Company agreed to modify the PMPA as it relates to the delivery payment per ounce of silver in exchange for two million common share purchase warrants from Alexco. Under the amendment, the price paid per ounce of silver delivered has been modified to be between 10% of the spot price of silver, when the market price of silver is at or above $23.00 per ounce, to 90% of the spot price of silver when the market price of silver is at or below $15.00 per ounce.

Silverstone Acquisition

On May 21, 2009, the Company completed the acquisition of all of the outstanding common shares of Silverstone Resources Corp. ('Silverstone') by way of a statutory plan of arrangement. Each common share of Silverstone was exchanged for 0.185 of a Common Share, resulting in the issuance of approximately 23.4 million Common Shares. The following interests were acquired as a result of the acquisition of Silverstone:

Minto Mine(Canada) - A PMPA (the 'Minto PMPA') to acquire 100% of the silver produced from the Minto mine (the 'Minto mine') in Canada and 100% of the first 30,000 ounces of gold produced per annum and 50% thereafter for the lesser of $3.90 per ounce of silver and $300 per ounce of gold (subject to an annual inflationary adjustment after three years) and the then prevailing market price per ounce of silver or gold. If gold production from the Minto mine exceeds 30,000 ounces per year, the Company has committed to purchase 50% of the amount that production exceeds those thresholds for the same per ounce payment noted above. Capstone, the former owner of the Minto mine, has also provided Wheaton with a corporate guarantee under the Minto PMPA. In October 2017, in order to incentivize Capstone to extend to Minto mine life, the Company agreed to amend the Minto PMPA. The primary modification was to increase the production payment per ounce of gold delivered to the Company over the current fixed price in periods where the market price of copper is lower than $2.50 per pound. In consideration for this contract amendment and certain other agreements made between the Company and Capstone, the Company received shares of Capstone with a value of $8 million. In October 2018, Capstone announced that it was putting the Minto mine on care and maintenance. The Minto mine was sold by Capstone to Pembridge effective June 3, 2019 and Pembridge assumed Capstone's obligations under the Minto PMPA. According to Pembridge's news release dated October 16, 2019, milling operations at the Minto mine recommenced on October 10, 2019. In conjunction with the resumption of mining activity at the Minto mine, the Company has amended the Minto PMPA such that the cash payment per ounce of gold delivered will be 75% of the spot price of gold for each ounce of gold delivered under the Minto PMPA. This amended pricing will end on the earlier of (i) 14 months after the first delivery is due; or (ii) once 11,000 ounces of gold have been delivered to the Company.

Cozamin Mine(Mexico) (Completed) - A PMPA to acquire 100% of the silver produced from the Cozamin mine (the 'Cozamin mine') in Mexico, owned by Capstone until 2017 for the lesser of $4.00 (subject to an annual inflationary adjustment after three years) and the then prevailing market price per ounce of silver. Capstone had also provided Wheaton International with a corporate guarantee under the Cozamin mine agreement. Under the terms of the agreement, all deliveries

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under this agreement ceased as of April 4, 2017. The Company has subsequently entered into a new PMPA with Capstone in respect of the Cozamin mine. See 'Description of the Business - Principal Product - Cozamin Mine'.

Neves-Corvo Mine(Portugal) - A PMPA to acquire 100% of the silver produced from the Neves-Corvo mine (the 'Neves-Corvo mine') in Portugal, owned by Lundin for the life of mine (nominal term of 50 years) for the lesser of $3.90 (subject to an annual inflationary adjustment after three years) and the then prevailing market price per ounce of silver. Lundin has also provided Wheaton International with a corporate guarantee under the Neves-Corvo mine agreement.

Aljustrel Mine(Portugal) - A PMPA to acquire 100% of the silver produced from the Aljustrel mine (the 'Aljustrel mine') in Portugal, owned by I'M SGPS for the life of mine (nominal term of 50 years) for the lesser of $3.90 (subject to an annual inflationary adjustment after three years) and the then prevailing market price per ounce of silver. As part of an agreement with I'M SGPS dated July 16, 2014, Wheaton agreed to waive its rights to silver contained in copper concentrate at the Aljustrel mine. The Company has not waived its rights to the silver contained in zinc and lead concentrate. I'M SGPS has also provided Wheaton International with a corporate guarantee under the Aljustrel mine agreement. In May 2018, Wheaton International agreed to amend the Aljustrel mine PMPA to increase the production payment per ounce of silver to 50% of the spot price of silver, to fix the silver payable rates for a period of two years with certain restrictions on changes thereafter and to make certain other modernization amendments.

Loma de La Plata Project(Argentina) - A debenture with PAAS (formerly with Aquiline Resources Inc.) convertible into an agreement to purchase 12.5% of the life of mine silver production from the Loma de La Plata (the 'Loma de La Plata project') zone of the Navidad project in Argentina. On February 25, 2010, the Company elected to convert the debenture with PAAS into an agreement to acquire an amount equal to 12.5% of the life of mine silver production from the Loma de La Plata project. As such, Wheaton will make total upfront cash payments of $32.4 million following the satisfaction of certain conditions, including PAAS receiving all necessary permits to proceed with the mine construction. In addition, a per ounce cash payment of the lesser of $4.00 per ounce and the prevailing market price is due for silver delivered under the agreement. The terms of the definitive PMPA continue to be negotiated.

Barrick Mines and Pascua-Lama Project

three years after achieving project completion at Pascua-Lama) and the prevailing market price is due for silver delivered under the Pascua-Lama PMPA. In connection with the Pascua-Lama PMPA, Barrick provided Wheaton International with a corporate guarantee.

As a result of Barrick's decision to suspend construction activities at the Pascua-Lama project, and the various amendments to the Pascua-Lama PMPA, Wheaton International was entitled to 100% of the silver production from Barrick's Lagunas Norte mine, Pierina mine (now in closure) and Veladero mine until the earlier of April 1, 2018 and the date Barrick satisfied the completion test. In 2013 Barrick initiated the closure of its Pierina mine and in accordance with the terms of the Pascua-Lama PMPA, all deliveries from the Pierina mine, Lagunas Norte mine and Veladero mine ceased as of April 1, 2018.

As part of the original agreement, Barrick provided the Company with a completion guarantee, requiring Barrick to complete the Pascua Lama project to at least 75% design capacity by December 31, 2015, which was subsequently extended to December 31, 2016 and then to June 30, 2020. As the requirements of the completion test were not satisfied by the completion test deadline of June 30, 2020, Wheaton International was entitled, within 90 days of such date, to provide to Barrick notice of termination of the PMPA and demand repayment of the upfront payment of $625 million reduced by the

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cash flows received relative to the Lagunas Norte mine, Pierina mine and Veladero mine. Wheaton elected not to terminate the PMPA in exchange for a refund.

Pascua-Lama SMA Regulatory Sanctions - As per Barrick's annual financial statements for the year ended December 31, 2020, in May 2013, Compañía Minera Nevada ('CMN'), Barrick's Chilean subsidiary that holds the Chilean portion of the Pascua-Lama project, received a resolution (the 'Original Resolution') from Chile's environmental regulator (the Superintendencia del Medio Ambiente, or 'SMA') that required Barrick to complete the water management system for the Pascua-Lama project in accordance with the Pascua-Lama project's environmental permit before resuming construction activities in Chile. The Original Resolution also required CMN to pay an administrative fine of approximately $16 million for deviations from certain requirements of the Pascua-Lama project's Chilean environmental approval, including a series of reporting requirements and instances of non-compliance related to the Pascua-Lama project's water management system.

Barrick also disclosed in its annual financial statements for the year ended December 31, 2020 that in June 2013, a group of local farmers and indigenous communities challenged the Original Resolution. The challenge, which was brought in the Environmental Court of Santiago, Chile (the 'Environmental Court'), claims that the fine was inadequate and requested more severe sanctions against CMN including the revocation of the project's environmental permit. Barrick disclosed that on March 3, 2014, the Environmental Court annulled the Original Resolution and remanded the matter back to the SMA for further consideration in accordance with its decision (the 'Environmental Court Decision'). In particular, the Environmental Court ordered the SMA to issue a new administrative decision. The Environmental Court did not annul the portion of the Original Resolution that required Barrick to halt construction on the Chilean side of the Pascua-Lama project until the water management system was completed in accordance with the Pascua-Lama project's environmental permit. Barrick further stated that on April 22, 2015, CMN was notified that the SMA has initiated a new administrative proceeding for alleged deviations from certain requirements of the Pascua-Lama project's environmental approval, including with respect to the Pascua-Lama project's environmental impact and a series of monitoring requirements. Barrick states that on June 8, 2016, the SMA consolidated the two administrative proceedings against CMN into a single proceeding encompassing both the reconsideration of the Original Resolution in accordance with the decision of the Environmental Court and the alleged deviations from the Project's environmental approval notified by the SMA in April 2015. In January 2018, the Company was notified that Barrick had received a revised resolution ('Revised Resolution') from the SMA requiring the closure of existing infrastructure on the Chilean side of the Pascua-Lama project. Barrick reported that CMN filed an appeal of the Revised Resolution on February 3, 2018 with the First Environmental Court of Antofagasta (the 'Antofagasta Environmental Court') and on October 12, 2018, the Antofagasta Environmental Court issued an administrative ruling ordering review of the significant sanctions ordered by the SMA. In its ruling, the Antofagasta Environmental Court rejected four of the five closure orders contained in the Revised Resolution and remanded the related environmental infringements back to the SMA for further consideration. Barrick reported that CMN appealed the Revised Resolution. A hearing on the appeal was held on November 6, 2018. Barrick also reported in its annual financial statements for the year ended December 31, 2020 that on March 14, 2019, the Chilean Supreme Court annulled the October 12, 2018 administrative decision of the Antofagasta Environmental Court on procedural grounds and remanded the case back to the Antofagasta Environmental Court for review by a different panel of judges. On September 28, 2020, Barrick announced that it accepted the Antofagasta Environmental Court's decision to uphold the closure order and sanctions the SMA imposed on CMN. Barrick further noted that the ruling drew a line under a legal process that started in 2013 and CMN would not appeal it. Barrick clarified that Pascua would now be transitioned from care and maintenance to closure in accordance with the Environmental Court's decision.

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Rosemont Transaction

upon Hudbay's receipt of permitting for the Rosemont project and other customary conditions and the balance of $180 million being advanced once project costs incurred on the Rosemont project exceed $98 million and certain other customary conditions. Under the PMPA, the Company is permitted to elect to pay the deposit in cash or the delivery of Common Shares. Additionally, the Company will be entitled to certain delay payments, including where construction ceases in any material respect, or if completion is not achieved within agreed upon timelines. In addition, a per ounce cash payment of the lesser of $3.90 per ounce of silver and $450 per ounce of gold (both subject to an inflationary adjustment) or the prevailing market price is due, for silver and gold delivered under the Rosemont PMPA. Hudbay and certain affiliates have provided Wheaton International with a corporate guarantee and other security over their assets.

As per Hudbay's MD&A for the year ended December 31, 2020, on July 31, 2019, the U.S. District Court for the District of Arizona ('Court') issued a ruling challenging the U.S. Forest Service's issuance of the Final Record of Decision ('FROD') for the Rosemont project. The Court ruled to vacate and remand the FROD thereby delaying the expected start of construction of Rosemont. On June 22, 2020 Hudbay announced that they had filed the initial brief with the U.S. Court of Appeals for the Ninth Circuit in relation to appealing this decision. As per Hudbay's MD&A for the year ended December 31, 2020, final briefs were filed in November 2020, and the oral hearing was completed in February 2021. Hudbay indicates that a decision from the Ninth Circuit is expected in the second half of 2021.

As per Hudbay's annual financial statements for the year ended December 31, 2020, in March 2019, Hudbay entered into an agreement with United Copper & Moly LLC ('UCM') to purchase UCM's remaining 7.95% interest in the Rosemont project and to terminate all of UCM's remaining earn-in and offtake rights. Hudbay reports that the acquisition provides Hudbay with 100% ownership of the Rosemont project.

Constancia Mine (including Pampacancha Deposit)

As at the end of the first quarter of 2014, as a result of capital expenditures at the Constancia mine reaching $1 billion, a $125 million cash payment was made by Wheaton International to Hudbay. On September 10, 2014, Wheaton International further amended its agreement with Hudbay and as a result of capital expenditures meeting the $1.35 billion requirement, on September 26, 2014 Wheaton International paid further cash consideration of $135 million to Hudbay by delivery of 6,112,282 Common Shares, at an average issuance price of $22.09 per share. As at December 31, 2014, Wheaton International had paid Hudbay total upfront cash consideration of $429.9 million.

Wheaton International will make ongoing payments of the lesser of $5.90 per ounce of silver and $400 per ounce of gold (both subject to an inflationary adjustment of 1% beginning in the fourth year) or the prevailing market price per ounce of silver and gold delivered.

The silver and gold production at the Constancia mine was subject to the same completion test which was satisfied in 2016. Should Hudbay fail to achieve a minimum level of throughput at the Pampacancha deposit (the 'Pampacancha deposit') during 2018, 2019 or by June 30, 2021, Wheaton International is entitled to additional compensation in respect of the gold stream. Hudbay has granted Wheaton International a right of first refusal on any future streaming agreement, royalty agreement, or similar transaction related to the production of silver or gold from the Constancia mine. In connection with the

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Hudbay agreement, Hudbay Peru S.A.C. ('Hudbay Peru') provided Wheaton International with a corporate guarantee and certain other security over its assets and the Constancia mine. Wheaton International has also entered into intercreditor arrangements with lenders to Hudbay.

Recovery rates for gold under the amended agreement have been fixed given the early nature of the metallurgical test work on gold recoveries from the Pampacancha deposit. Recoveries will be set at 55% for the Constancia mine deposit and 70% for the Pampacancha deposit until Wheaton International receives 265,000 payable ounces, after which actual recoveries will be applied.

On March 20, 2020, Hudbay announced a temporary shutdown of operations at the Constancia mine as a result of the limited availability of certain critical mining supplies due to the COVID-19 virus pandemic. The Peruvian government issued a decree on May 3, 2020 indicating large mines would be able to reopen subject to approval of certain protocols, and the Constantcia mine resumed operations by third quarter of 2020. See 'Risks Relating to the Company - Impact of Epidemics'.

As per Hudbay's MD&A for the year ended December 31, 2020, in early January 2021, Hudbay received the final mining permit for the development and operation of Pampacancha. Additionally, in January 2021, Hudbay commenced limited pre-development activities for Pampacancha, including haul road construction and site preparation work. Hudbay indicate that they continue to advance discussions with the remaining land user family at Pampacancha. Pre-stripping activities are expected to commence once the remaining land user agreement has been completed.

As per Hudbay's MD&A for the year ended December 31, 2020, in late January 2021, new COVID-19 restrictions were announced by the government of Peru. See 'Risks Relating to the Company - Impact of Epidemics'. Hudbay notes that as a result of these restrictions and the need to complete the remaining land user agreements, Hudbay no longer expects to mine four million tonnes of ore from the Pampacancha deposit by June 30, 2021. Hudbay also notes that if they fail to meet this milestone, they will be required to deliver an additional 8,020 ounces of gold to the Company in equal quarterly installments, commencing September 30, 2021 in accordance with the Constancia PMPA. Hudbay and the Company are currently in discussions about, among other things, alternatives to defer the additional gold deliveries over the Pampacancha mine life.

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777 Mine

per ounce of gold (both subject to an inflationary adjustment of 1% beginning in the fourth year and subject to being increased to $9.90 per ounce of silver and $550 per ounce of gold after the initial 40 year term) or the prevailing market price per ounce of silver and gold delivered.Hudbay has granted Wheaton a right of first refusal on any future streaming agreement, royalty agreement or similar transaction related to the production of silver or gold from the 777 mine. In connection with the 777 PMPA, certain supplier subsidiaries of Hudbay provided Wheaton with a corporate guarantee and certain other security over their assets and the 777 mine.

Hudbay reported on October 11, 2020 that production at its 777 mine had been temporarily suspended due to an incident that occurred on October 9th during routine maintenance of the hoist rope and skip, which is the bucket used to hoist ore from underground. The hoist rope detached from the skip, causing the skip to fall to the bottom of the shaft. On November 25, 2020, Hudbay announced that full production has resumed at its 777 mine following the skip hoist incident in October. Hudbay has noted that the 777 mine is near the end of its mine life in 2022

Sudbury Mines

with a term of 10 years (refer to 'Salobo Mine' below for further details). In addition, Wheaton will make ongoing payments of the lesser of $400 per ounce of gold or the prevailing market price per ounce of gold delivered. In connection with the Sudbury agreement, Vale also provided Wheaton International with a corporate guarantee.

As of May 2017, the Stobie mine was placed on care and maintenance. Vale indicated that this decision was based upon low metal prices and ongoing market challenges, declining ore grades, and, more recently, seismicity issues that restricted production below the 3,000-foot level.

See 'Description of the Business - Principal Product - Salobo Mine - Operational Update Relative to Vale' for disclosure regarding the Brumadinho Incident.

Salobo Mine

On March 2, 2015, Wheaton International agreed to amend the Salobo PMPA with Vale Switzerland (the 'First Amended Salobo PMPA') to acquire from Vale Switzerland an additional amount of gold equal to 25% of the life of mine gold production from any minerals from the Salobo mine that enter the Salobo mineral processing facility from and after

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January 1, 2015. Under the First Amended Salobo PMPA, Wheaton International paid Vale cash consideration of $900 million on March 24, 2015 for the increased gold stream.

On August 2, 2016, Wheaton International agreed to further amend the First Amended Salobo PMPA (the 'Second Amended Salobo PMPA') to acquire an additional amount of gold equal to 25% of the life of mine gold production in respect of gold production for which an off-taker payment is received after July 1, 2016. Under the Second Amended Salobo PMPA, Wheaton International paid Vale cash consideration of $800 million and the 10 million warrants expiring on February 28, 2023 were amended to reduce the strike price from $65 to $43.75.

With these amendments, Wheaton International increased the gold stream from 25% to 75% of the life of mine gold production from the Salobo mine.

In addition, Wheaton International is required to make ongoing payments of the lesser of $400 per ounce of gold (subject to a 1% annual inflation adjustment commencing as of January 1, 2019) or the prevailing market price per ounce of gold delivered for the full 75% of gold production.

If actual throughput is expanded above 28 Mtpa, then under the terms of the Second Amended Salobo PMPA, Wheaton will be required to make an additional set payment to Vale based on the size of the expansion, the timing of completion and the grade of the material processed. Under the Second Amended Salobo PMPA, Wheaton International will be required to make an additional payment to Vale, relative to the 75% stream, based on a set fee schedule ranging from $113 million if throughput is expanded beyond 28 Mtpa by January 1, 2036, to up to $923 million if throughput is expanded beyond 40 Mtpa by January 1, 2022. There will be no additional deposit due if the expansion is completed after January 1, 2036.

According to Vale's Fourth Quarter and Year End 2020 Production and Sales Report, throughput at Salobo was impacted due to unscheduled maintenance and an incident which led Vale to review and halt mine and plant activities for a short period, during which changes in maintenance routines were implemented to improve operations and safety conditions.

Salobo III Expansion - In October 2018, Vale's Board of Directors approved the investment in the Salobo III mine expansion (the 'Salobo Expansion'). The Salobo Expansion is proposed to include a third concentrator line and will use Salobo's existing infrastructure. Vale anticipates that the Salobo Expansion will result in an increase of throughput capacity from 24 Mtpa to 36 Mtpa once fully ramped up. Assuming the Salobo III expansion project achieves 12 Mtpa of additional processing capacity (bringing total processing capacity at Salobo to 36 Mtpa) by the end of 2022, the Company would expect to pay an estimated expansion payment of between $570 million to $670 million. The actual amount and timing of any expansion payment may significantly differ from this estimate depending on the size, timing and processed grade of any expansion. As per Vale's Fourth Quarter and Year End 2020 Performance Report, physical completion of the Salobo Expansion was 68% at the end of the fourth quarter. See 'Further Disclosure Regarding Mineral Projects on Material Properties - Salobo Mine, Brazil' for details regarding the Salobo mine.

Operational Update Relative to Vale - On January 25, 2019, Vale's mining operations in Brumadinho, Minas Gerais, Brazil experienced a significant breach and failure of a retaining dam around the tailings disposal area (the 'Brumadinho Incident'). Vale reported in February 2021 that it has entered into a global settlement with the State of Minas Gerais, the Public Defender of the State of Minas Gerais and the Federal and the State of Minas Gerais Public Prosecutors Offices, to repair the environmental and social damage resulting from the Brumadinho Incident. Vale reports that the Global Settlement has an economic value of Brazilian Real$37,689,767,329, contemplating socio-economic and socio-environmental reparation projects. While the Brumadinho Incident did not occur at any mine that is the subject of the Company's PMPAs, the consequences of the Brumadinho Incident may have an impact on the Company's business, financial condition and results of operations. See 'Risks Relating to the Company - Counterparty Credit and Liquidity Risk', 'Risks Relating to the Company - Security Over Underlying Assets', 'Risks Relating to the Company - Mine Operator ConcentrationRisk', 'Risks Relating to the Company - Indebtedness and Guarantees Risk', 'Risks Relating to the Mining Operations - International Operations', 'Risks Relating to the Mining Operations - Exploration, Development, Operating, Expansion and Improvements Risks', and 'Risks Relating to the Mining Operations - Land Title and Indigenous Peoples'.

Xikrin do Cateté Update - Vale has reported that indigenous associations representing the indigenous community of Xikrin do Cateté in Brazil ('Indigenous Associations') brought a public civil action against Vale, IBAMA and FUNAI, seeking the suspension of the environmental permitting process of Salobo Mine. Vale has reported that the associations contend that FUNAI and IBAMA have failed to conduct the appropriate studies regarding the affected indigenous

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communities during the environmental permitting process and contends that Vale's operations would be contaminating the water of the Itacaiunas River and consequently that the indigenous groups affected by this mine have not provided the required consent. Vale notes that the plaintiffs also requested a monthly payment of Brazilian Real$2 million for each association until the defendants conclude the studies. Vale reports that applicable law provides for mandatory consultation with the indigenous communities located within ten kilometers of the mine, and these indigenous communities are located more than 22 kilometers away from the mine. Vale noted that in October 2017 the court denied plaintiffs' request for an injunction suspending the Salobo mine and that in February 2019, Vale, IBAMA, and the environmental agency Instituto Chico Mendes de Conservacao da Biodiversidade filed a joint answer in court, rebutting the plaintiff's claims, and reaffirming the legality of the environmental permitting process of Salobo mine and the fulfillment of all conditions imposed by relevant authorities.

Vale noted that in March 2019, the Federal Prosecution Office presented an opinion for the suspension of the activities in the Salobo mine. A decision by the federal court is pending. In July 2019, the Judge of the Federal Court of Maraba partially granted an injunction requested by the Indigenous Associations, ordering Vale and Salobo to prepare the indigenous component study of the Salobo Mine project, and rejected all other requests filed by the plaintiff, including project shutdown and monthly fund payments.

In December 2019, in accordance with the procedure established in the legislation for the preparation of indigenous component studies, Vale presented the curriculum of the professionals who will prepare such study, as well as the work plan for the acknowledgement and approval by FUNAI. A response from FUNAI is pending. Vale announced that the decision held by the Federal Court of Maraba does not affect its operations at the Salobo mine. Vale appealed this decision and announced that it would continue to vigorously contest the action. However, if as a result of these proceedings it is determined that the activities at the Salobo mine should be suspended then, the ability of the Company to receive gold under the terms of the Salobo PMPA would be materially impacted which in turn could have a material impact on the Company's financial conditions, results of operations and cash flows. See 'Risks Relating to the Mining Operations - Land Title and Indigenous Peoples'.

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Early Deposit Gold and Silver Interest - Toroparu Project

ounce of gold (subject to an inflationary adjustment of 1% beginning in the fourth year of satisfaction of the completion test) or the prevailing market price per ounce of gold delivered.

On April 22, 2015, the Company amended the Toroparu Early Deposit Agreement to include the acquisition of an amount equal to 50% of the payable silver production from the Toroparu project. Wheaton International will make a total upfront cash payment of $5 million in connection with this amendment, of which $2 million has been paid to date, and $3 million will be payable on an installment basis to partially fund construction of the mine. In addition, Wheaton International will make ongoing payments of the lesser of $3.90 per ounce of silver (subject to an inflationary adjustment of 1% beginning in the fourth year of satisfaction of the completion test) or the prevailing market price per ounce of silver delivered. As a result of the addition of the silver stream to the Toroparu Early Deposit Agreement, Wheaton International will pay Gold X a total upfront cash consideration of $153.5 million. In connection with the amendment to the Toroparu Early Deposit Agreement, Gold X and ETK Inc., the owner of the Toroparu project, provided Wheaton International with corporate guarantees and certain other security over their assets.

Gold X announced results from a Preliminary Economic Assessment ('PEA') of its Toroparu project in a news release dated June 4, 2019, and subsequently filed the PEA on July 23, 2019. As per the PEA, the Toroparu project has been re-scoped to include the Sona Hill satellite deposit, modification of the processing strategy to start with gold-only production from a Carbon-in-Leach circuit for the initial ten years, and an expansion in year 11 to add flotation processing capacity. Under the amended Toroparu Early Deposit Agreement, the due date for the feasibility study, environmental study and impact assessment and other related documents (collectively the 'Toroparu Feasibility Documentation') was extended to December 31, 2021. There will be a 60 day period following the delivery of Toroparu Feasibility Documentation, or after December 31, 2021 if the Toroparu Feasibility Documentation has not been delivered to Wheaton International by such date, where Wheaton International may elect not to proceed with the Toroparu Early Deposit Agreement. If Wheaton elects to terminate, Wheaton International will be entitled to a return of the amounts advanced less $2 million which is non-refundable or, at Gold X's option, the gold stream percentage will be reduced from 10% to 0.909% and the silver stream percentage will be reduced from 50% to nil.

Gold X has indicated that it has estimated revised, lower potential upfront payments from Wheaton as a result of the revised scope of the project, however such revised payments have not been approved by Wheaton.

Effective December 24, 2019, in connection with the Torparu Early Deposit Agreement, the Company advanced $10 million to Gold X as part of a $20 million 10% secured convertible debenture private placement offering completed by Gold X (the 'Gold X Convertible Note'). The funds raised by Gold X in the convertible debenture private placement offering were used to acquire 100% of the interest in and to certain of Gold X's joint venture Toroparu project properties. On July 14, 2020, the Company elected to convert the Gold X Convertible Note (and accrued interest) and received 4,467,317 common shares of Gold X.

On March 15, 2021, Gold X announced that it had entered into an agreement with Gran Colombia Gold Corp. ('Gran Colombia') under which Gran Colombia would acquire all of the shares of Gold X. Gold X has noted that completion of the acquisition is subject to the approval of both Gold X and Gran Colombia shareholders, receipt of court and stock exchange approvals, and other customary closing conditions for transactions of this nature. Gold X has announced that the parties are working towards closing the transaction in late May or early June, 2021.

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Antamina Mine

(the holder of Glencore's interest in the Antamina mine) also provided Wheaton International with corporate guarantees and certain other assurances, including encumbrance and debt restrictions by Noranda.

During the second quarter of 2020, the Antamina operations were temporarily suspended in response to the Peruvian emergency decree related to the COVID-19 virus pandemic. The Peruvian government issued a decree on May 3, 2020 indicating large mines would be able to reopen subject to approval of certain protocols and Antamina resumed operations during the third quarter and remained in operation for the balance of the year. See 'Risks Relating to the Company - Impact of Epidemics'.

Early Deposit Gold and Silver Interest - Cotabambas Project

Under the Cotabambas Early Deposit Agreement, Wheaton International will pay a total cash consideration of $140 million plus an ongoing production payment of the lesser of: (i) $5.90 for each silver ounce and $450 for each gold ounce (both subject to a 1% annual inflation adjustment starting in the fourth year after the completion test is satisfied) and (ii) the prevailing market price. To December 31, 2020, Wheaton International has advanced $10 million to Panoro. Once certain conditions have been met, Wheaton International will advance the remaining additional $4 million to Panoro, spread over up to three years. Following the delivery of certain feasibility documentation Wheaton International may elect to terminate the Cotabambas Early Deposit Agreement. If Wheaton International elects to terminate, Wheaton International will be entitled to a return of the portion of the $14 million paid less $2 million payable upon certain triggering events occurring.

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Early Deposit Gold and Silver Interest - Kutcho Project

from the Kutcho project until 5.6 million ounces of silver and 51,000 ounces of gold have been delivered to Wheaton, at which point the stream would decrease to 66.67% of payable silver production and payable gold production for the life of mine.

Under the Kutcho Early Deposit Agreement, Wheaton will pay total cash consideration of $65 million plus make ongoing payments of 20% of the spot price per silver ounce and per gold ounce delivered. To December 31, 2020, Wheaton has advanced a total of $7 million to Kutcho in accordance with the terms of the Kutcho Early Deposit Agreement. Wheaton will be required to make an additional payment to Kutcho, of up to $20 million, if processing throughput is increased to 4,500 tonnes per day or more within 5 years of attaining commercial production. Following the delivery of certain feasibility documentation, or after two years if the feasibility documentation has not been delivered, Wheaton may elect to terminate the Kutcho Early Deposit Agreement. If Wheaton elects to terminate, Wheaton will be entitled to a return of the portion of the $7 million paid less $1 million payable upon certain triggering events occurring.

Effective December 14, 2017, in connection with the Kutcho Early Deposit Agreement, the Company participated in an equity financing undertaken by Kutcho acquiring, by way of private placement, 6,153,846 common shares and warrants to acquire an additional 3,076,923 common shares of Kutcho for total consideration of $3 million (C$4 million).

Additionally, effective December 14, 2017, the Company, as lender, advanced to Kutcho $16 million (C$20 million) in exchange for a subordinated secured convertible term debt loan agreement (the 'Kutcho Convertible Note'). The Kutcho Convertible Note, which has a seven-year term to maturity, carries interest at 10% per annum, compounded and payable semi-annually. Under the Kutcho Convertible Note, Kutcho had the option to defer the first three interest payments until December 31, 2019, at which point one half of the deferred interest was payable in cash and the other half of the deferred interest could, at Kutcho's option, either (i) be paid in cash; or (ii) be deferred for an additional period not to exceed four years. In the event Kutcho elected to make the second deferral, Wheaton was permitted, at its option, to convert the remaining deferred interest into common shares of Kutcho. Under an amendment to the Kutcho Convertible Debenture dated November 25, 2019, Kutcho was granted the option to defer the entire deferred interest amount for a period of four years after December 31, 2019 at an interest rate of 15% per annum and Wheaton agreed to remove its ability to convert a portion of the deferred interest into common shares of Kutcho. Under a further amendment made in September 2020, Wheaton agree to allow Kutcho to further defer interest due and owing on December 31, 2020 and June 30, 2021 to December 31, 2021. At any time prior to the maturity date, the Company has the right to convert all or any part of the outstanding amount of the Kutcho Convertible Note into common shares of Kutcho at C$0.8125 per share. Kutcho has the right to repay the Kutcho Convertible Note early, subject to the applicable pre-payment cash penalties as follows:

Effective November 25, 2019, the Company entered into a non-revolving term loan with Kutcho, under which Kutcho can draw up to a maximum of Cdn$1.3 million. The loan facility, which carries interest at 15% per annum, was to mature December 31, 2020, however this was extended to December 31, 2021 on the condition that Kutcho complete certain equity financing. The funds under the loan facility are to be used by Kutcho to advance the Kutcho project.

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Voisey's Bay Mine

the agreement until the upfront cash payment is reduced to $NIL and 22% of the spot price thereafter. Payable rates for cobalt in concentrate have generally been fixed at 93.3% and deliveries under the contract are scheduled to begin effective January 1, 2021. The agreement also includes a completion test on underground operations measured by the throughput rate. Vale has also provided Wheaton International with a corporate guarantee. In August 2018, the obligations under the agreement were transferred from Vale Switzerland to Vale Power SA, also a subsidiary of Vale.

Vale made the decision on March 17, 2020 to temporarily suspend operations at the Voisey's Bay mine to ensure the safety of local communities, which have limited to access to healthcare given their remoteness as a result of the COVID-19 virus pandemic. Operations at the Voisey's Bay mine resumed in July, with Vale indicating in their third quarter report that they reached full capacity in August. See 'Risks Relating to the Company - Impact of Epidemics'.

In connection with deliveries of cobalt commencing after January 1, 2021, Vale and the Company agreed to certain amendments to the Voisey's Bay PMPA, including an adjustment to the location of delivery of cobalt.

See 'Description of the Business - Principal Product - Salobo Mine - Operational Update Relative to Vale' for disclosure regarding the Brumadinho Incident.

Stillwater and East Boulder Mines

production thereafter for the life of mine. Wheaton International paid total upfront cash consideration of $500 million in July 2018. In addition, Wheaton International will make ongoing payments of 18% of the spot price of each of gold and palladium for each ounce of gold or palladium delivered under the agreement until the upfront cash payment is reduced to $NIL and 22% of the spot price thereafter. Wheaton International is entitled to the attributable gold production for which an offtaker payment is received after July 1, 2018 at a fixed payable rate of 99% and the attributable palladium production for which an offtaker payment is received after July 1, 2018 at a fixed payable rate of 99.6%. Certain subsidiaries of Sibanye-Stillwater (including the owner of the Stillwater mines) have provided Wheaton International with corporate guarantees.

According to Sibanye-Stillwater Limited's Operating and Financial Results for the Six Month and Year Ended 31 December 2020, throughput was impacted primarily due to the impact of a spike in COVID-19 infections in the fourth quarter of 2020 associated with a severe wave of COVID-19 infections in Montana, USA. Sibanye-Stillwater also reported that after a review of the Blitz project was conducted following the suspension of growth capital activities due to COVID-19, the project is now expected to reach a steady state by 2024, a delay of up to two years. Finally, Sibanye-Stillwater highlighted that the Fill the Mill expansion project at the East Boulder mine was completed on schedule in the fourth quarter of 2020.

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Early Deposit Gold and Silver Interest - Marmato Mine

Under the terms of the Marmato PMPA, Wheaton Interational is entitled to purchase an amount of precious metals equal to 6.5% of the gold production and 100% of the silver production until 190,000 ounces of gold and 2.15 million ounces of silver have been delivered, after which the stream drops to 3.25% of the gold production and 50% of the silver production for the life of mine.

Under the Marmato PMPA, Wheaton International is required to pay Aris Gold total cash consideration of $110 million, $34 million of which is payable once mining contract 014-89M is extended, $4 million of which is payable six months thereafter, and the remaining portion of which is payable during construction of the Marmato Deeps zone development portion of the Marmato mine; in each case subject to customary conditions. In addition, Wheaton International will make ongoing payments equal to 18% of the spot gold and silver price until the uncredited portion of the upfront payment is reduced to zero, and 22% of the spot gold and silver price thereafter. Wheaton International is entitled to the attributable gold and silver effective July 1, 2020.

To December 31, 2020, Wheaton International had not advanced any funds to Aris Gold in accordance with the terms of the Marmato PMPA.

Cozamin Mine

Early Deposit Gold Interest - Santo Domingo Project

production until 285,000 gold ounces have been delivered, after which the stream drops to 67% of the gold production for the life of mine.

Under the Santo Domingo Early Deposit Agreement, Wheaton International is required to pay Capstone total cash consideration of $290 million, $30 million of which is payable as an early deposit once certain conditions have been met, and the remaining portion of which is payable during construction of the Santo Domingo project, again subject to certain conditions. In addition, Wheaton International will make ongoing payments equal to 18% of the spot gold price until the

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uncredited portion of the upfront payment is reduced to zero, and 22% of the spot gold thereafter. Wheaton International is entitled to the attributable gold and silver effective the date of the Santo Domingo Early Deposit Agreement.

Metates Royalty

On August 7, 2014, the Company, through its wholly owned subsidiary Wheaton Cayman, purchased a 1.5% net smelter return royalty interest (the 'Metates Royalty') in the Metates properties in Mexico from Chesapeake Gold Corp. ('Chesapeake') for $9 million. In accordance with the terms of the agreement, on August 7, 2019, Chesapeake exercised its option to re-acquiretwo-thirds of the Royalty, or 1%, for the sum of $9 million. As a result, the Company's Royalty has been reduced to 0.5%. The Company also has a right of first refusal on any silver streaming, royalty or any other transaction on the Metates properties. In connection with the Metates Royalty, American Gold Metates, S. de R.L. de C.V., the owner of the Metates properties, granted Wheaton a mortgage on the Metates properties.

Brewery Creek Royalty

Effective January 5, 2021, the Company purchased from Alexco, for C$4.5 million, a 2.0% net smelter return royalty interest on the first 600,000 ounces of gold mined from ore extracted from the Golden Predator Exploration Ltd. ('Golden Predator') owned Brewery Creek quartz mineral claims (the 'Brewery Creek Mineral Claims) and any mineral tenure derived therefrom, and 2.75% net smelter return royalty interest on gold mined from ore extracted thereafter from the Brewery Creek Mineral Claims (the 'Brewery Creek Royalty'). The Brewery Creek Royalty agreement provides, among other things, that Golden Predator may reduce the 2.75% net smelter returns royalty interest to 2.125%, on payment of the sum of C$2.0 million to Wheaton.

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Competitive Conditions

The Company is the one of the largest precious metals streaming companies in the world. The Company competes with other companies for PMPAs and similar transactions. The ability of the Company to acquire additional precious metals in the future will depend on its ability to select suitable properties, be successful in any competitive process initiated by a mine operator in respect of a property, and enter into similar PMPAs. See 'Description of the Business - Risk Factors - Competition' in this annual information form.

Operations

Raw Materials

The Company purchases precious metals and cobalt pursuant to the PMPAs described under 'Description of the Business - Principal Product' in this annual information form.

Sales of Principal Product

There are worldwide markets into which the Company can sell the precious metals and cobalt purchased under its PMPAs and, as a result, the Company will not be dependent on a particular purchaser with regard to the sale of the precious metals or cobalt that it acquires pursuant to its PMPAs. Under certain PMPAs, precious metal is acquired from the mine operator in concentrate form, which is then sold under the terms of the concentrate sales contracts to third-party smelters or traders. The payable silver in concentrate from the Zinkgruvan mine, the Stratoni mine and the Neves-Corvo mine and the payable silver and gold from the Minto mine is/was purchased from the Company by third-party smelters and off-takers at the worldwide market price for gold and silver.

Precious Metal Credit Sales

Under certain PMPAs, precious metal is acquired from the mine operator in the form of precious metal credits, which is then sold through a network of financial instructions such as third-party brokers or dealers. Revenue from precious metal credit sales is recognized at the time of the sale of such credits, which is also the date that control of the precious metal is transferred to the customer. The Company would not be materially affected should any of these financial institutions cease to buy precious metal credits from the Company as these sales would be redirected to alternate financial institutions.

Cobalt Sales

Cobalt acquired from Vale is sold under an exclusive agency agreement with Traxys North America LLC ('Traxys'). Revenue from cobalt sales is recognized at the time payment for the cobalt is received, which is also the date that control of the cobalt is transferred to the customer. The Company would not be materially affected should Traxys cease to buy cobalt from the Company as these sales would be redirected to an alternate agent or dealer.

Employees

As of the date hereof, the Company and its subsidiaries have an aggregate of 40 employees.

Foreign Interests

In addition to Canada, the Company currently purchases or expects to be purchasing precious metals from mines in the United States, Mexico, Peru, Brazil, Chile, Argentina, Guyana, Colombia, Portugal, Greece and Sweden. Any changes in legislation, regulations or shifts in political attitudes in such foreign countries are beyond the control of the Company and may adversely affect its business. The Company may be affected in varying degrees by such factors as government legislation and regulations (or changes thereto) with respect to the restrictions on production, export controls, income and other taxes, expropriation of property, repatriation of profits, environmental legislation, land use, water use, land claims of local people and mine safety. The effect of these factors on the Company cannot be accurately predicted. See 'Description of the Business - Risk Factors - Risks Relating to the Mining Operations - International Operations' in this annual information form.

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Ongoing Tax Matters

On September 24, 2015, the Company received Notices of Reassessment (the 'Reassessments') from the CRA reassessing the Company under the transfer pricing provisions contained in the Income Tax Act (Canada) (the 'Tax Act') for a total of C$353 million for federal and provincial tax, transfer pricing penalties, interest and other penalties for the 2005-2010 taxation years. The CRA's position in the Reassessments was that the transfer pricing provisions of the Tax Act relating to income earned by the Company's foreign subsidiaries outside of Canada should apply such that the income of Wheaton subject to tax in Canada should be increased by an amount equal to substantially all of the income earned outside of Canada by the Company's foreign subsidiaries for the 2005-2010 taxation years.

On December 13, 2018, the Company announced that it reached a settlement with the CRA which provided for a final resolution of the Company's tax appeal in connection with the reassessment under transfer pricing rules of the 2005 to 2010 taxation years related to the income generated by the Company's foreign subsidiaries outside of Canada (the 'CRA Settlement'). Under the terms of the CRA Settlement, income earned outside of Canada by the Company's foreign subsidiaries will not be subject to income tax in Canada under transfer pricing rules. The CRA Settlement principles apply to all taxation years after 2010 subject to there being no material change in facts or change in law or jurisprudence.

It is not known or determinable by the Company when any ongoing audits by CRA of international and domestic transactions will be completed, or whether reassessments will be issued, or the basis, quantum or timing of any such reassessments, and it is therefore not practicable for the Company to estimate the financial effect, if any, of any ongoing audits. From time to time there may also be proposed legislative changes to law or outstanding legal actions that may have an impact on applicable law or jurisprudence, the outcome, applicability and impact of which is also not known or determinable by the Company, but which may have a material adverse effect on the Company or the price of the Common Shares.

2013-2015 Taxation Years: Domestic Reassessments

The Company received Notices of Reassessment in 2018 and 2019 for the 2013 to 2015 taxation years in which the CRA is seeking to change the timing of the deduction of upfront payments with respect to the Company's PMPAs relating to Canadian mining assets, so that the cost of precious metal acquired under these Canadian PMPAs is equal to the cash cost paid on delivery plus an amortized amount of the upfront payment determined on a units-of-production basis over the estimated recoverable reserves, and where applicable, resources and exploration potential at the respective mine (the 'Domestic Reassessments'). In total, the Domestic Reassessments assessed tax, interest and other penalties of $8 million.

Management believes the Company's position, as reflected in its filed Canadian income tax returns and consistent with the terms of the PMPAs, that the cost of the precious metal acquired under the Canadian PMPAs is equal to the market value while a deposit is outstanding, and the cash cost thereafter is correct. The Company has filed Notices of Objection and paid 50% of the disputed amounts in order to challenge the Domestic Reassessments.

If CRA were to apply the methodology in the Domestic Reassessments to taxation years subsequent to 2015, the Company estimates that losses would arise that could be carried back to reduce tax and interest relating to the Domestic Reassessments to approximately $2 million.

U.S. Shareholder Class Action

During July 2015, after the Company disclosed that the CRA was proposing that they would issue notices of reassessment for federal and provincial tax, transfer pricing penalties, interest and other penalties for the 2005-2010 taxation years (the 'Reassessments'), two putative securities class action lawsuits were filed against the Company in the U.S. District Court for the Central District of California in connection with the proposal (the 'Complaints').

On October 19, 2015, the Complaints were consolidated into one action, In re Silver Wheaton Securities Litigation, as against the Company, Randy Smallwood, President & Chief Executive Officer, Gary Brown, Senior Vice President & Chief Financial Officer and Peter Barnes, former Chief Executive Officer (together the 'Initial Defendants') and a lead plaintiff (the 'Plaintiff') was selected. The Plaintiff filed a consolidated amended complaint in December 2015, which focused on the Reassessments and asserted claims under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934, as amended (the 'Exchange Act').

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On March 27, 2018, the court granted Plaintiff's motion for leave to file a Second Amended Complaint, which alleged that Initial Defendants made false and/or misleading statements, as well as failed to disclose material adverse facts about the Company's business, operations, prospects and performance in violation of Sections 10(b) and 20(a) of the Exchange Act, and added a claim under Section 10(b) of the Exchange Act against our auditors (together with the 'Initial Defendants, the 'Defendants').

On August 3, 2020, the court issued their final approval of a settlement of the lawsuit for $41.5 million, without admission of liability by any of the Defendants. The settlement was fully funded by the Company's insurance carriers and the other Defendants. The Company was not required to pay any portion of the settlement.

Canadian Shareholder Class Action

By Notice of Action dated August 10, 2016 (as amended September 2, 2016 and supplemented by Statement of Claim filed September 9, 2016 (collectively, the 'Claim')), proposed representative plaintiff Suzan Poirier commenced proceedings pursuant to the Class Proceedings Act (Ontario) in the Ontario Superior Court of Justice against Wheaton Precious Metals Corp., Randy Smallwood, President and Chief Executive Officer and Gary Brown, Senior Vice President & Chief Financial Officer. The Claim alleges, among other things, misrepresentation pursuant to primary and secondary market civil liability provisions under the Securities Act (Ontario) and its provincial equivalents, common law negligence and negligent misrepresentation. The claim focuses on the Reassessments. The Claim purports to be brought on behalf of proposed class of persons and entities who acquired Common Shares between August 14, 2013 and July 6, 2015 and held some or all of such Common Shares as of at least July 6, 2015. On July 21, 2020, the Company received a motion record in support of a proposed motion seeking the following (among other relief): (i) leave of the court to commence a secondary market action pursuant to section 138.3(1) of the Securities Act (Ontario) and equivalent provisions in the applicable provincial securities statutes; (ii) certification of the (amended) class and proposed common issues; (iii) leave to file an amended Statement of Claim to include further particulars and to refer to various provincial securities laws; and (iv) the appointment of a new class representative (Ms. Miriam Rosenszajn) in place of Ms. Poirier. While no dates have been scheduled as yet, it is expected that the certification and leave motions will be jointly heard in late 2021.

The Company believes that the allegations are without merit and intends to vigorously defend against this matter. No amounts have been recorded for potential liability arising from this claim as no value has been specified in the statement of claim and the Company cannot reasonably predict the outcome.

Amended Revolving Credit Facilities

revolving facility (the 'Revolving Facility'). The Revolving Facility made available credit of $2 billion with a maturity date of February 27, 2020. As part of the Revolving Facility, the financial covenants required the Company to maintain: (i) a net debt to tangible net worth ratio of less than or equal to 0.75:1; and (ii) an interest coverage ratio of greater than or equal to 3.00:1. Effective November 20, 2015, the Revolving Facility was amended to only include cash interest expenses for the purposes of calculating the interest coverage ratio. At the Company's option, amounts drawn under the Revolving Facility incur interest based on the Company's leverage ratio at either (i) LIBOR plus 1.20% to 2.20%; or (ii) the Bank of Nova Scotia's Base Rate plus 0.20% to 1.20%. Undrawn amounts under the Revolving Facility are subject to a stand-by fee of 0.24% to 0.44% per annum, dependent on the Company's leverage ratio. Effective March 18, 2016, the maturity date for the Revolving Facility was extended by one year to February 27, 2021. On February 27, 2017, the Revolving Facility was amended to extend the maturity date to February 27, 2022 and make certain other amendments, on February 27, 2018, the Revolving Facility was amended again to extend the maturity date to February 27, 2023 and on February 27, 2019 the Revolving Facility was amended again to extend the maturity date to February 27, 2024. On February 27, 2020, the Revolving Facility was amended to extend the maturity date to February 27, 2025, confirming HSBC Bank Canada was ceasing as a lender and to make certain other amendments. Effective December 31, 2020, the Company had $195 million drawn under the Revolving Facility. While the Revolving Facility is unsecured, each of Wheaton International, Wheaton Cayman and Silver Wheaton Luxembourg, as subsidiaries of the Company, have guaranteed the obligations of the Company under the Revolving Facility.

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At the Market Equity Program

On April 16, 2020, the Company established an at-the-market equity program (the 'ATM Program') that allows the Company to issue up to $300 million worth of Common Shares from treasury to the public from time to time at the Company's discretion and subject to regulatory requirements. Any Common Shares sold in the ATM Program will be sold (i) in ordinary brokers' transactions on the NYSE or another US marketplace on which the Common Shares are listed, quoted or otherwise trade, (ii) ordinary brokers' transactions on the TSX, (iii) on another Canadian marketplace on which the Common Shares are listed, quoted or otherwise trade, or (iv) with respect to sales in the United States, at the prevailing market price, a price related to the prevailing market price or at negotiated prices. Since the Common Shares will be distributed at the prevailing market prices at the time of the sale or certain other prices, prices may vary among purchasers and during the period of distribution.

Sales of Common Shares through the ATM Program will be made pursuant to the terms of an ATM equity offering sales agreement dated April 16, 2020 entered into among the Company, BofA Merrill Lynch, BMO Capital Markets, RBC Dominion Securities Inc., Scotiabank, CIBC Capital Markets, TD Securities, National Bank Financial Markets, Eight Capital, Raymond James Ltd. And Canaccord Genuity (the 'Canadian Agents') and BofA Securities, BMO Capital Markets, RBC Capital Markets, LLC, Scotiabank, MUFG and Mizuho Securities (the 'U.S. Agents' and, together with the Canadian Agents, the 'Agents'). The ATM Program will be effective until the date that all Common Shares available for issue under the ATM Program have been issued or the ATM Program is terminated prior to such date by the Company or the Agents.

Wheaton intends that the net proceeds from the ATM Program, if any, will be available as one potential source of funding for stream acquisitions and/or other general corporate purposes including the repayment of indebtedness. As at December 31, 2020, the Company has not issued any shares under the ATM program. See 'Description of the Business - Risk Factors - Risks Relating to the Company - Risks Associated with the ATM Program'.

Counterparty Concentration

Precious metals and cobalt purchases under certain of Wheaton's PMPAs are subject to counterparty concentration, including as follows:

See 'Description of the Business - Risk Factors - Mine Operator Concentration Risk'.

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Information Systems and Cyber Security

The Company's information systems and cyber security program are designed and developed by information technology consultants retained by the Company and overseen by internal management and the Audit Committee. Additional consultants are retained to provide ongoing information systems support and management, maintenance and cyber security services, which include systems event monitoring, managed endpoint security, managed backup and information systems response management. In addition, the Company undergoes an annual data penetration test, vulnerability assessment, and off-site disaster recovery test, to assess our data security and information technnology infrastructure and recovery abilities, and the Company has external information security assurance and audit activities performed by qualified, independent professional service firms which validate the effectiveness of the information systems and cyber security program and controls. The Company has a multi-layered, defense-in-depth approach to information systems and cyber security, with intentional redundancies to increase protection of valuable data and information. The Company's overall enterprise data security and information technology infrastructure is managed in accordance with applicable Centre for Internet Security Top 20 Critical Security Controls.

The Company has established an enterprise cyber security awareness training program to validate compliance and effectiveness. The Company also actively seeks to mitigate information systems and cyber security risks by identifying, reviewing and developing risk mitigating and response strategies for such risks. The Company has not experienced a material cyber-related breach within the last three years. The Company is developing a formal cyber security incident response plan, including consideration of a cyber security risk insurance policy.

The operational status of the Company's approach to information systems and cyber security are periodically reviewed with management, and the Audit Committee, which is comprised of independent directors, receives quarterly reports on the Company's information systems and cyber security.

See 'Description of the Business - Risk Factors - Information Systems and Cyber Security'.

Long-Term Investments

At December 31, 2020, the Company held long-term investments (including common shares and warrants) with a market value of approximately $200 million.

Bear Creek Mining Corporation

At December 31, 2020, Wheaton owned approximately 13.2 million common shares of Bear Creek Mining Corporation ('Bear Creek'), representing approximately 11.8% of the outstanding shares of Bear Creek. At December 31, 2020, the fair value of the Company's investment in Bear Creek was approximately $32.6 million.

Sabina Gold & Silver Corp.

At December 31, 2020, Wheaton owned approximately 11.7 million common shares of Sabina Gold & Silver Corp. ('Sabina'), representing approximately 3.6% of the outstanding shares of Sabina. At December 31, 2020, the fair value of the Company's investment in Sabina was approximately $30.2 million.

First Majestic Silver Corp.

During 2018, as part of the consideration for terminating the San Dimas SPA, the Company received 20,914,590 First Majestic common shares, representing approximately 11% of the outstanding shares of First Majestic. During 2019, the Company disposed of 675,000 First Majestic common shares in market sales for total proceeds of C$5.0 million. During 2020, the Company reduced the number of First Majestic common shares held in market sales to 7,155,000 for total proceeds of C$151 million. At December 31, 2020, Wheaton owned approximately 7,155,000 First Majestic common shares, representing 3.2% of the outstanding shares of First Majestic. At December 31, 2020, the fair value of the Company's investment in First Majestic was $95.9 million.²

² Subsequent to December 31, 2020, the Company sold the remaining First Majestic common shares.

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Other

At December 31, 2020 Wheaton owned common shares of a number publicly-traded mineral exploration, development, technology and mining companies. At December 31, 2020, the fair value of all long-term investments other than Bear Creek, Sabina and First Majestic was approximately $37.4 million. As these other long-term investments are not considered material to Wheaton's overall financial position, these investments are not separately identified in this annual information form.

Environment, Sustainability and Corporate Social Responsibility

Wheaton believes that its stakeholders are essential to our success. At Wheaton, we are committed to:

Environmental and Sustainability Policy

Under its environmental and sustainability policy, the Company is committed to the protection of life, health, and the environment for present and future generations. Wheaton is dedicated to providing a safe workplace for all employees, officers, directors, consultants, and visitors, in addition to conducting business in a manner that utilizes best practices to minimize the impact of operations on the environment. Our commitments include:

The Governance and Sustainability Committee of the Board is responsible for overseeing the environmental and sustainability policy.

Corporate Social Responsibility

Wheaton's Corporate Social Responsibility ('CSR') programs are focused on the communities where the Company's offices are based as well as the communities near the mines from which Wheaton has attributable precious metals production.

Wheaton encourages its employees to contribute their time, resources, and skills to charitable organizations through

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volunteering and participation in fundraisers, community events, and related activities. Employees are eligible for charitable activity leave each year in addition to employee donation matching programs that promote involvement in charitable fundraising initiatives. As the Company continues to evolve, additional policies will be developed to ensure the highest standards of health, safety, and environmental management are met.

Wheaton has adopted a community investment program under which a portion of Wheaton's net income is donated to charitable organizations and initiatives that help improve and strengthen communities both locally and internationally. Wheaton's community investment program has two components: the Partner CSR Program, which was initiated in 2014 and has an international focus, and the Local CSR program, which supports organizations in the communities where our offices are located. The Company targets 1.5% of the average of the previous four years' net income for these programs, with 1% going towards the Partner CSR Program and the remainder to local initiatives.

Through the Partner CSR Program, Wheaton supports long-term, sustainable benefits to the communities where these mining operations are located by providing financial support for CSR projects managed by the Company's partners. Notably in 2020, the Company supported 17 projects with seven partners. The various programs focus on health, education, community engagement and entrepreneurial opportunities in the regions where our partners operate including Brazil, Peru, Canada, and Mexico.

Through the Local CSR Program, Wheaton has supported a wide variety of charities and causes over the years including the BC Cancer Foundation, Canadian Cancer Society, Special Olympics BC, Nature Trust of British Columbia and several others. In addition, Wheaton International has been the lead donor for the Special Needs Foundation Cayman since 2017, an organization dedicated to supporting children with special needs. Wheaton's contributions have helped fund the opening of an inclusion training and community centre called Our House, which offers a full range of supportive and educational services.

To demonstrate Wheaton's commitment to corporate sustainability, Wheaton joined the United Nations ('UN') Global Compact in September 2019. As a participant, Wheaton has committed to voluntarily aligning its operations and strategy with the ten universally accepted principles in the areas of human rights, labour, environment and anti-corruption, and to take actions that support broader UN goals, including the Sustainable Development Goals. Additionally, Wheaton is a signatory of the World Gold Council's Responsible Gold Mining Principles and Conflict-Free Gold Standard.

In addition, during 2020, Wheaton announced the launch of a $5 million Community Support and Response Fund (the 'COVID-19 Response Fund') in order to support the global efforts to combat the COVID-19 pandemic and its impacts on our communities. The COVID-19 Response Fund is designed to meet the immediate needs of the communities in which Wheaton operates and around the mines from which Wheaton receives precious metals. This fund is incremental to Wheaton's already active Partner CSR Program. As of December 31, 2020, the Company had made donations totalling $3 million under this program.

During 2020, very small changes were made to Wheaton's Code of Business Conduct and Ethics (the 'Code') to align with updates to the Company's Disclosure Policy and in early 2021, the Code was further updated to reflect commitments on diversity and the Board of Director's adoption of a target to have at least 30% of the Board of Directors members be women by the end of 2024.

Environmental Commitment

Wheaton recognizes the importance of taking action on climate change. As part of the Carbon Disclosure Project, the Company measured its total greenhouse gas emissions, reduced them where possible, and offset the difference through Offsetters, Canada's leading carbon management solutions provider. Wheaton has contributed to projects that prevent the equivalent amount of emissions from entering the atmosphere. Since 2016, Wheaton has maintained its status as a carbon neutral company.

Environmental, Social and Governance Investment Principles

Wheaton is not involved in nor does it control the operational decisions of mine projects by third-party operators; however, Wheaton is indirectly exposed to environmental, social and governance ('ESG') and other risks arising from these mine projects. Wheaton has adopted Investment Principles to Wheaton's approach to evaluating potential streaming transactions as well as monitoring existing streaming agreements. The purpose of these principles is to identify third party independent mining companies that appropriately manage their ESG and other risks in order to minimize Wheaton's indirect

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exposure to those risks. Details concerning these investment principles can be found on Wheaton's website at www.wheatonpm.com/responsibility.

Human Rights Policies

Our human rights policies are contained in the Code. Our human rights policies recognize that while government has the primary responsibility to protect human rights, it is the responsibility of businesses to support and respect the protection of internationally proclaimed human rights. Our human rights policies also outline our commitment to support and respect human rights in our own operations and complying with the laws of countries in which we do business. Our commitment is guided by Canadian laws respecting human rights as well as international statements on human rights including the United Nations Guiding Principles on Business and Human Rights. Our human rights policies also outline Wheaton's commitment to seek to emphasize the rights of vulnerable groups impacted by its operations, including women, children and indigenous peoples.

During 2019, the Code was updated to better align our policies with the UN Global Compact by adding provisions outlining our commitment to fair practice and freedom of association, collective bargaining and our support for the abolition of forced labour and child labour, as well as other provisions.

Anti-Bribery and Anti-Corruption Policies

Our anti-bribery and anti-corruption policies are contained in our Code. Our anti-bribery and anti-corruption policies outline the obligations and requirements that must be met by all of our employees, officers and directors as well as third-party contractors working on our behalf. These include prohibitions against bribery, facilitation payments, money laundering as well as gifts to public officials and institutions.

Partner/Supplier Code of Conduct

Wheaton believes that it is our responsibility to parter with suppliers that share our commitment to sustainable development and the standards set out in our partners/supplier code of conduct. Our partner/supplier code of conduct requires that our suppliers, including our streaming partners, meet or exceed certain standards of business practice which include compliance with applicable law, business ethics and integrity, health and safety, human rights and labour standards and environment and sustainability. Wheaton will show preference for those suppliers who are able to demonstrate alignment with the standards contained in the partner/supplier code of conduct.

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Risk Factors

The operations of the Company are speculative due to the nature of its business which is the purchase of precious metals and/or cobalt production from producing mining companies. These risk factors could materially affect the Company's future operating results and could cause actual events to differ materially from those described in forward-looking statements relating to the Company. The risks described herein are not the only risks facing the Company. Additional risks and uncertainties not currently known to the Company, or that the Company currently deems immaterial, may also materially and adversely affect its business.

Risks Relating to the Company

Commodity Prices and Commodity Markets

The price of the Common Shares and the Company's financial results may be significantly and adversely affected by a decline in the price of precious metals and cobalt. The price of precious metals and cobalt fluctuates widely, especially in recent years, and is affected by numerous factors beyond the Company's control, including but not limited to, the sale or purchase of precious metals by various central banks and financial institutions, interest rates, exchange rates, inflation or deflation, fluctuation in the value of the United States dollar and foreign currencies, global and regional supply and demand, and the political and economic conditions of major precious metals and cobalt producing countries throughout the world. The precious metals and cobalt markets tend to be cyclical, and a general downturn could result in a significant decrease in the Company's revenue. Any such price decline may have a material adverse effect on the Company.

The profitability of Wheaton's interests under the PMPAs is directly related to the market price of precious metals and cobalt. The Company's revenue is sensitive to changes in the price of precious metals and cobalt and the overall condition of the precious metal and cobalt mining industry and markets, as it derives all of its of revenue from precious metals and cobalt streams. If Wheaton is unable to sell precious metals or cobalt production as a result of a reduction in, or an absence of, demand for precious metals or cobalt, there could be a significant decrease in the Company's revenue which may have a material adverse effect on the Company or result in the Company not generating positive cash flow or earnings.

In the event that the prevailing market price of precious metals and cobalt is at or below the price at which the Company can purchase such commodities pursuant to the terms of the PMPAs associated with its precious metals and cobalt interests, the Company will not generate positive cash flow or earnings, which could have a material adverse effect on the Company.

Precious metals and cobalt are by-product metals at all of the Mining Operations, other than silver at the Keno Hill mines, silver at the Loma de La Plata zone of the Navidad project, gold at the Toroparu project, gold and silver at the Marmato mine, and palladium at the Stillwater mines and therefore, the economic cut-off applied to the reporting of precious metals and cobalt reserves and resources will be influenced by changes in the commodity prices of other metals at the mines.

Impact of Epidemics

All of Wheaton's PMPAs are subject to the risk of emerging infectious diseases or the threat of outbreaks of viruses or other contagions or epidemic diseases through the Mining Operations, including the novel COVID-19 virus pandemic. These infectious disease risks may not be adequately responded to locally, nationally, regionally or internationally due to lack of preparedness to detect and respond to outbreaks or respond to significant pandemic threats. In addition, a government may impose strict emergency measures in response to the threat or existence of an infectious disease, such as the emergency measures imposed by governments of many countries in response to the COVID-19 virus pandemic. As such, there are potentially significant economic and social impacts of infectious disease risks, including the inability of Mining Operations to operate as intended, shortage of skilled employees or labour unrest, delays or shortages in supply chains, inability of employees to access sufficient healthcare, significant social upheavals or unrest, government or regulatory actions or inactions (including but not limited to, changes in taxation or policies, or delays in permitting or approvals), decreased demand or the inability to sell precious metals or cobalt or declines in the price of precious metals and cobalt, capital markets volatility, availability of credit, loss of investor confidence or other unknown but potentially significant impacts. Given the global nature of Mining Operations, there are potentially significant economic losses from infectious disease outbreaks that can extend far beyond the initial location of an infection disease outbreak. As such, both global outbreaks, such as the COVID-19 virus pandemic, as well as regional and local outbreaks can have a significant impact on Wheaton's PMPAs and the related Mining Operations. Wheaton may not be able to accurately predict which Mining Operations will be subject to infectious disease risks or the quantum of such risks. In addition, Wheaton's own operations are exposed to infectious disease risks noted above

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and as such Wheaton's operations may be adversely affected by such infectious disease risks. Accordingly, any outbreak or threat of an outbreak of a virus or other contagions or epidemic disease could have a material adverse effect on Wheaton, its business, results from operations and financial conditions directly or due to a counterparty (i) being unable to deliver some or all of the precious metals or cobalt due under the applicable PMPA with that counterparty; (ii) otherwise defaulting in its obligations under that PMPA; (iii) ceasing operations at one or more mines that are the subject of that PMPA; or (iv) becoming insolvent. As a result, any of these or other adverse financial or operational consequences on a counterparty may also have a material adverse effect on Wheaton's business, financial condition, results of operations and cash flows.

As at the date of this annual information form, all of the Company's partners' operations are currently running, though we are closely monitoring and regularly assessing the impact of the COVID-19 virus pandemic on the Mining Operations and our own operations. However, this pandemic is evolving rapidly and its effects on the Mining Operations and our own operations are uncertain. It is possible that in the future operations at the Mining Operations may be temporarily shut down or suspended for indeterminate amounts of time, any of which may, individually or in the aggregate, have a material and adverse impact on the Company's business, financial condition, results of operations and cash flows. In addition, the impact of the COVID-19 virus pandemic on economies and the prospects of economic growth globally may lead to decreased demands for commodities, including precious metals or cobalt, which may have a material and adverse impact on the Company's business, financial condition, results of operations and cash flows.

There can be no assurance that Wheaton's partners' operations that are operational as of the date of this annual information form will continue to remain operational for the duration of the COVID-19 virus pandemic. In addition, even if operational, these operations may be subject to adverse impacts on production and other impacts due to the COVID-19 virus pandemic response measures, absenteeism and otherwise as a result of the pandemic and any of these impacts may be material with respect to those operations, as well as our business and financial results.

COVID-19 Virus Pandemic May Heighten Other Risks

To the extent that the COVID-19 virus pandemic adversely affects Wheaton's business and financial results, it may also have the effect of heightening many of the other risks, including, but not limited to, risks relating to the Company such as risks related to commodity prices and commodity markets, commodity price fluctuations, equity price risk associated with the Company's equity investments, credit and liquidity of counterparties to the PMPAs, mine operator concentration, Wheaton's indebtedness and guarantees, Wheaton's ability to raise additional capital, Wheaton's ability to enforce security interests, information systems and cyber security and risks relating to the Mining Operations such as risks related to mineral reserve and mineral resource estimates, production forecasts, impacts of governmental regulations, international operations, availability of infrastructure and employees and challenging global financial conditions.

Risks Relating to the Mining Operations

To the extent that they relate to the production of precious metals or cobalt from, or the continued operation of, the Mining Operations, the Company will be subject to the risk factors applicable to the operators of such mines or projects, some of which are set forth below under 'Risks Relating to the Mining Operations'.

No Control Over Mining Operations

The Company has agreed to purchase a certain percentage of the gold, silver, palladium and/or cobalt produced by the Mining Operations. The Company is not directly involved in the ownership or operation of mines and has no contractual rights relating to the operation of the Mining Operations. The owners and operators will generally have the power to determine the manner in which the relevant properties subject to the asset portfolio are exploited, including decisions to expand, advance, continue, reduce, suspend or discontinue production from a property and decisions about the marketing of products extracted from the property. The interests of the Company and the operators of the relevant properties may not always be aligned. As a result, the cash flows of the Company are dependent upon the activities of third parties, which creates the risk that at any time those third parties may: (i) have business interests or targets that are inconsistent with those of the Company; (ii) take action contrary to the Company's policies or objectives; (iii) be unable or unwilling to fulfill their obligations under their agreements with the Company; or (iv) experience financial, operational or other difficulties, including insolvency, which could limit or suspend a third party's ability to perform its obligations under the PMPAs. At any time, any of the operators of the Mining Operations may decide to suspend or discontinue operations, including if the costs to operate the mine, or observe the obligations of the PMPA, exceed the revenues from operations.

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The ability for the operators of the Mining Operations to act in their sole discretion could therefore have a material adverse effect on the Company's business, financial condition, results of operations and cash flows.

Except in limited circumstances, the Company will not be entitled to any material compensation if such operations do not meet their forecasted precious metals or cobalt production targets in any specified period or if the operations shut down, suspend or discontinue on a temporary or permanent basis. There can be no assurance that the precious metals or cobalt production from such properties will ultimately meet forecasts or targets. In addition, payments from production generally flow through the operator and there is a risk of delay and additional expense in receiving such revenues. The PMPA payments are calculated by the operators based on reported production and calculations of the Company's payments are subject to, and dependent upon, the adequacy and accuracy of the operators' production and accounting functions. Failure to receive payments under the PMPAs to which the Company is entitled may have a material adverse effect on the Company. In addition, the Company must rely on the accuracy and timeliness of the public disclosure and other information it receives from the owners and operators of the Mining Operations, and uses such information, including production estimates, in its analyses, forecasts and assessments relating to its own business. If the information provided by such third parties to the Company contains material inaccuracies or omissions, the Company's ability to accurately forecast or achieve its stated objectives may be materially impaired.

Taxes

A significant portion of the Company's operating profit is derived from its subsidiaries, including Wheaton International which is incorporated and operates in the Cayman Islands and historically, Silverstone Resources (Barbados) Corp., which was incorporated and operated in Barbados, such that the Company's profits are subject to low income tax.

The introduction of new tax laws, regulations or rules, or changes to, or differing interpretation of, or application of, or court decisions in respect of, existing tax laws, regulations or rules in Canada, the Cayman Islands, Barbados, Luxembourg, the Netherlands or any of the countries in which the Company's subsidiaries or the Mining Operations are located, or to which deliveries of precious metals, precious metals credits or cobalt are made, could result in an increase in the Company's taxes, or other governmental charges, duties or impositions. No assurance can be given that new tax laws, regulations or rules will not be enacted or that existing tax laws, regulations or rules will not be changed, interpreted, applied or decided upon in a manner which could result in the Company's profits being subject to additional taxation or which could otherwise have a material adverse effect on the Company, the price of the Common Shares.

Under the terms of the CRA Settlement, income earned outside of Canada by the Company's foreign subsidiaries will not be subject to income tax in Canada under transfer pricing rules. The CRA Settlement principles apply to all taxation years after 2010 subject to there being no material change in facts or change in law or jurisprudence.

It is not known or determinable by the Company when any ongoing audits by CRA of international and domestic transactions will be completed, or whether reassessments will be issued, or the basis, quantum or timing of any such reassessments, and it is therefore not practicable for the Company to estimate the financial effect, if any, of any ongoing audits. From time to time there may also be proposed legislative changes to law or outstanding legal actions that may have an impact on applicable law or jurisprudence, the outcome, applicability and impact of which is also not known or determinable by the Company, but which may have a material adverse effect on the Company or the price of the Common Shares. See 'Description of the Business - Operations - Significant Tax Matters' for further details in respect of the CRA Settlement.

Counterparty Credit and Liquidity Risk

The Company is exposed to counterparty risks and liquidity risks including, but not limited to: (i) through the companies with which the Company has PMPAs which may experience financial, operational or other difficulties, including insolvency, which could limit or suspend those companies' ability to perform their obligations under those PMPAs; (ii) through the companies with which the Company has advanced funds in exchange for convertible notes receivable; (iii) through financial institutions that hold the Company's cash and cash equivalents; (iv) through companies that have payables to the Company, including concentrate customers; (v) through the Company's insurance providers; and (vi) through the Company's lenders. The Company is also exposed to liquidity risks in meeting its operating expenditure requirements in instances where cash positions are unable to be maintained or appropriate financing is unavailable. These factors may impact the ability of the Company to obtain loans and other credit facilities in the future and, if obtained, on terms favourable to the Company. If these risks materialize, the Company's operations could be adversely impacted and the trading price of the Common Shares could be adversely affected.

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In the event that a counterparty with which the Company has a PMPA were to experience financial, operational or other difficulties (such as Vale in connection with the Brumadinho Incident or a counterparty that is unable to favourably resolve the application of new or existing tax laws, regulations or rules or any tax audits or disputes), then that counterparty may (i) be unable to deliver some or all of the precious metals or cobalt due under the applicable PMPA with that counterparty; (ii) otherwise default in its obligations under that PMPA; (iii) cease operations at one or more mines that are the subject of that PMPA; or (iv) become insolvent. As a result, any of these or other adverse financial or operational consequences on a counterparty may also have a material adverse effect on Wheaton's business, financial condition, results of operations and cash flows. In addition, there is no assurance that Wheaton will be successful in enforcing its rights under any security or guarantees provided to Wheaton.

In addition, parties to contracts do not always honour contractual terms and contracts themselves may be subject to interpretation or technical defects. To the extent companies with which the Company has PMPAs do not abide by their contractual obligations, the Company would be forced to take legal action to enforce its contractual rights. Such litigation may be time consuming and costly and there is no guarantee of success. Any pending proceedings or actions or any decisions determined adversely may have a material and adverse effect on Wheaton's business, financial condition, results of operations and cash flows.

See 'Description of the Business - Principal Product - Salobo Mine - Operational Update Relative to Vale' for disclosure regarding the Brumadinho Incident. See also 'Description of the Business - Principal Product - San Dimas - Mexican Tax Dispute' for further details in respect of the legal claim by Mexican tax authorities in respect of the San Dimas mine.

See also 'Risks Relating to the Company - Security Over Underlying Assets', 'Risks Relating to the Company - Mine Operator Concentration Risk', 'Risks Relating to the Company - Indebtedness and Guarantees Risk', 'Risks Relating to the Mining Operations - International Operations' and 'Risks Relating to the Mining Operations - Exploration, Development, Operating, Expansion and Improvements Risks' and 'Risks Relating to the Mining Operations - Land Title and Indigenous Peoples'.

Mine Operator and Counterparty Concentration Risk

Precious metals and cobalt purchases under certain of Wheaton's PMPAs are subject to both mine operator concentration risk and counterparty concentration risk, including as follows:

Should any of these mine operators or counterparties become unable or unwilling to fulfill their obligations under their agreements with Wheaton, or should any of the risk factors identified by Wheaton materialize in respect of the mine operators, counterparties or the Mining Operations, there could be a material adverse effect on Wheaton, including, but not limited to, Wheaton's revenue, net income and cash flows from operations. See also 'Description of the Business -Operations - Counterparty Concentration'.

In particular, total revenues relative to PMPAs with Vale were 46% and 47% of the Company's total revenue for the years ended December 31, 2020 and December 31, 2019, respectively; operating cash flows from the PMPAs with Vale represented approximately 50% and 57% of the Company's operating cash flows for the years ended December 31, 2020 and December 31, 2019, respectively; and as at December 31, 2020, the PMPAs with Vale proven and probable precious metal and cobalt reserves represented approximately 46% of the Company's total proven and probable gold-equivalent ounces ('GEO') reserves, measured and indicated precious metals and cobalt resources represented approximately 21% of the Company's GEO measured and indicated precious metals and cobalt resources and inferred precious metals and cobalt resources represented approximately 13% of the Company's total inferred GEO resources (as described in the Attributable

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Reserves and Resources section of the Company's MD&A). If Wheaton was unable to purchase any further precious metals or cobalt under the PMPAs with Vale, Wheaton's reserves and resources would be significantly reduced and Wheaton's forecasted gold equivalent production for 2021 and average five year forecasted gold equivalent production for 2021-2025 would be lowered by 39% and 37% respectively, leading to a corresponding reduction to its revenue, net earnings and cash flows.

See also 'Risks Relating to the Company - Counterparty Credit and Liquidity Risk', 'Risks Relating to the Company - Security Over Underlying Assets', 'Risks Relating to the Company - Indebtedness and Guarantees Risk', 'Risks Relating to the Mining Operations - International Operations', 'Risks Relating to the Mining Operations - Exploration, Development, Operating, Expansion and Improvements Risks' and 'Risks Relating to the Mining Operations - Land Title and Indigenous Peoples'.

Indebtedness and Guarantees Risk

As of December 31, 2020, the Company had $195 million drawn under the Revolving Facility. As a result of this indebtedness, the Company is required to use a portion of its cash flow to service principal and interest on the debt, which will limit the cash flow available for other business opportunities. The Company's ability to make scheduled payments of the principal of, to pay interest on, or to refinance indebtedness depends on its future performance, which is subject to economic, financial, competitive and other factors beyond its control (including, in particular, the continued receipt of precious metals and/or cobalt under the terms of the relevant PMPA agreements). If any of these factors beyond its control arose, the Company may not continue to generate cash flow in the future sufficient to service debt and make necessary capital expenditures. If the Company is unable to generate such cash flow, it may be required to adopt one or more alternatives, such as reducing or eliminating dividends, restructuring debt or obtaining additional equity capital on terms that may be onerous or highly dilutive. The Company's ability to refinance indebtedness will depend on the capital markets and its financial condition at such time. The Company may not be able to engage in any of these activities or engage in these activities on desirable terms, which could result in a default on its debt obligations.

The terms of the Revolving Facility require the Company to satisfy various affirmative and negative covenants and to meet certain financial ratios and tests. These covenants limit, among other things, the Company's ability to incur further indebtedness if doing so would cause it to fail to meet certain financial covenants, create certain liens on assets or engage in certain types of transactions. The Company can provide no assurances that in the future, it will not be limited in its ability to respond to changes in its business or competitive activities or be restricted in its ability to engage in mergers, acquisitions or dispositions of assets. Furthermore, due to factors beyond its control (for example, due to an event of force majeure or other disruption at operations, the Company does not receive sufficient precious metals or cobalt from its counterparties in accordance with the terms of the PMPAs), the Company may fail to comply with these covenants, including a failure to meet the financial tests or ratios, and any subsequent failure by the Company's subsidiaries to comply with guarantee obligations, would likely result in an event of default under the Revolving Facility and would allow the lenders to accelerate the debt, which could materially and adversely affect the Company's business, financial condition and results of operations and its ability to meet its payment obligations under debt, and the price of the Common Shares.

In addition, each subsidiary of the Company has guaranteed the obligations of the Company under the Revolving Facility. See 'Description of the Business - Operations - Amended Revolving Credit Facility' for further details. While the Revolving Facility is unsecured, as guarantors, any or all of Wheaton's subsidiaries can be called upon by lenders for the repayment of the obligations under the Revolving Facility if Wheaton were to default.

Hedging Risk

The Company has a policy that permits hedging its foreign exchange and interest rate exposures to reduce the risks associated with currency and interest rate fluctuations. The Company also has adopted a policy to allow the forward sale of forecast precious metals deliveries provided that such sales shall not extend beyond the end of a financial quarter of the Company.

Hedging involves certain inherent risks including: (a) credit risk - the risk that the creditworthiness of a counterparty may adversely affect its ability to perform its payment and other obligations under its agreement with the Company or adversely affect the financial and other terms the counterparty is able to offer the Company; (b) market liquidity risk - the risk that the Company has entered into a hedging position that cannot be closed out quickly, by either liquidating such hedging instrument or by establishing an offsetting position; and (c) unrealized fair value adjustment risk - the risk that, in respect of certain hedging products, an adverse change in market prices for commodities, currencies or interest rates

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will result in the Company incurring losses in respect of such hedging products as a result of the hedging products being out-of-the money on their settlement dates.

There is no assurance that a hedging program designed to reduce the risks associated with foreign exchange/currency, interest rate or commodity fluctuations will be successful. Although hedging may protect the Company from adverse changes in foreign exchange/currency, interest rate or commodity fluctuations, it may also prevent the Company from fully benefitting from positive changes.

Competition

The Company competes with other companies for PMPAs and similar transactions. Some of these companies may possess greater financial and technical resources than the Company. Such competition may result in the Company being unable to enter into desirable PMPAs or similar transactions, to recruit or retain qualified employees or to acquire the capital necessary to fund its PMPAs. As a result, existing or future competition in the mining industry could materially adversely affect the Company's prospects for entering into additional PMPAs in the future.

Litigation Claims and Proceedings

The Company is from time to time involved in various claims, legal proceedings and disputes arising in the ordinary course of business. If the Company is unable to resolve these disputes favorably, it may have a material adverse effect on the Company. The Company was previously the subject of litigation in a securities class action complaint in the United States and is currently the subject of litigation in securities class action complaints in Canada. See 'Description of the Business - U.S. Shareholder Class Action' and Description of the Business - Canadian Shareholder Class Action'.

Securities litigation, including current proceedings against the Company as well as potential future proceedings, could result in substantial costs and damages and divert the Company's management's attention and resources. Any decision resulting from any such litigation that is adverse to the Company could have a negative impact on the Company's financial position.

Security Over Underlying Assets

There is no guarantee that the Company will be able to effectively enforce any guarantees, indemnities or other security interests it may have. Should a bankruptcy or other similar event related to a mining operator occur that precludes a party from performing its obligations under the PMPA, the Company would have to consider enforcing its security interest. In the event that the mining operator has insufficient assets to pay its liabilities, it is possible that other liabilities will be satisfied prior to the liabilities owed to the Company. In addition, bankruptcy or other similar proceedings are often a complex and lengthy process, the outcome of which may be uncertain and could result in a material adverse effect on the Company.

In addition, because many of the Mining Operations are owned and operated by foreign affiliates, the Company's security interests may be subject to enforcement and insolvency laws of foreign jurisdictions that differ significantly from those in North America, and the Company's security interests may not be enforceable as anticipated. Further, there can be no assurance that any judgments obtained in Canadian courts will be enforceable in any of those jurisdictions outside of Canada. If the Company is unable to enforce its security interests, there may be a material adverse effect on the Company.

Acquisition Strategy

As part of the Company's business strategy, it has sought and will continue to seek new exploration, development and mining opportunities in the resource industry. In pursuit of such opportunities, the Company may fail to select appropriate acquisition candidates or negotiate acceptable arrangements, including arrangements to finance acquisitions or integrate the acquired businesses and their personnel into the Company. The Company cannot assure that it can complete any acquisition or business arrangement that it pursues or is pursuing, on favourable terms, or that any acquisitions or business arrangements completed will ultimately benefit the Company.

In the event that the Company chooses to raise debt capital to finance any acquisition, the Company's leverage will be increased. In addition, if the Company chooses to complete an equity financing to finance any acquisition, shareholders may suffer dilution.

In addition, the introduction of new tax laws or regulations, or accounting rules or policies, or rating agency policies,

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or changes to, or differing interpretations of, or application of, existing tax laws or regulations or accounting rules or policies or rating agency policies, could make PMPAs less attractive to counterparties. Such changes could adversely affect the Company's ability to enter into new PMPAs and could have a negative impact on the Company's financial position.

The Company may consider opportunities to restructure PMPAs where it believes such a restructuring may provide a long-term benefit to the Company, even if such restructuring may reduce near-term revenues or result in the Company incurring transaction related costs. The Company may enter into one or more acquisitions, restructurings or other streaming transactions at any time.

Market Price of the Common Shares

The Common Shares are listed and posted for trading on the TSX, NYSE and on the LSE. An investment in the Company's securities is highly speculative and the price of the Common Shares has fluctuated significantly in the past. During the year ended December 31, 2020, the trading price of the Common Shares has fluctuated as follows:

The market price of the Company's Common Shares may increase or decrease in response to a number of events and factors, including: any future offerings of the Common Shares pursuant to the ATM Program, any offering or otherwise, and other factors identified in this annual information form.

In addition, the global stock markets and prices for streaming and mining company shares have experienced volatility that often has been unrelated to the operating performance or prospects of such companies. These market and industry fluctuations may adversely affect the market price of the Common Shares, regardless of the Company's operating performance. The variables which are not directly related the Company's success and are, therefore, not within the Company's control, include other developments that affect the market for streaming and mining company shares, macroeconomic developments globally, the breadth of the public market for the Common Shares and the attractiveness of alternative investments and particular industries. The effect of these and other factors on the market price of the Common Shares on the exchanges on which they trade has historically made its common share price volatile and suggests that the Common Share price will continue to be volatile in the future.

It is not uncommon for securities class actions to be brought against publicly listed companies following periods of volatility or significant decline in the market price of their securities. The Company is currently the subject of litigation in a securities class action complaint in Canada. See 'Description of the Business- Canadian Shareholder Class Action'.

Multiple Listings of the Common Shares on the LSE, the TSX and the NYSE May Lead to an Inefficient Market for the Common Shares

Multiple listings of the Common Shares will result in differences in liquidity, settlement and clearing systems, trading currencies, prices and transaction costs between the exchanges where the Common Shares will be quoted. These and other factors may hinder the transferability of the Common Shares between the three exchanges. The Common Shares are quoted on the TSX, the NYSE and the LSE. Consequently, the trading in and liquidity of the Common Shares will be split between these three exchanges. The price of the Common Shares may fluctuate and may at any time be different on the TSX, the NYSE and the LSE. This could adversely affect the trading of the Common Shares on these exchanges and increase their price volatility and/or adversely affect the price and liquidity of the Common Shares on these exchanges. The Common Shares are quoted and traded in Canadian Dollars on the TSX, and in US Dollars on the NYSE. The Common Shares are quoted and traded in pence sterling on the LSE. The market price of the Common Shares on those exchanges may also differ due to exchange rate fluctuations.

Common Shares May be Suspended from Trading

Each of the TSX, NYSE and LSE has the right to suspend trading in certain circumstances. If the Common Shares are suspended from trading, the holders of Common Shares may not be able to dispose of their Common Shares on the LSE, the TSX or the NYSE (as the case may be).

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TSX: The objective of the TSX's policies regarding continued listing privileges is to facilitate the maintenance of an orderly and effective auction market for securities of a wide variety of listed issuers, in which there is a substantial public interest, and that comply with the requirements of the TSX. The policies are designed and administered in a manner consistent with that objective. The TSX has adopted certain quantitative and qualitative criteria under which it will normally consider the suspension from trading and delisting of securities. However, no set of criteria can effectively anticipate the unique circumstances which may arise in any given situation. Accordingly, each situation is considered individually on the basis of relevant facts and circumstances. As such, whether or not any of the delisting criteria has become applicable to a listed issuer or security, the TSX may, at any time, suspend from trading and delist securities if in the opinion of the TSX, such action is consistent with the objective noted above or further dealings in the securities on the TSX may be prejudicial to the public interest. In addition, the TSX may at any time suspend from trading the Common Shares if it is satisfied that the Company has failed to comply with any of the provisions of its listing agreement with the TSX or other agreements with the TSX, or with any TSX requirement or policy.

NYSE: The NYSE may suspend trading in, and commence proceedings to delist, the Common Shares from time to time if it determines that Wheaton or the Common Shares fail to satisfy the applicable quantitative or qualitative continued listing criteria under the NYSE listing standards. Such continued quantitative listing criteria include, but are not limited to, a minimum number of stockholders, a minimum average closing price over a consecutive 30 trading-day period, and a minimum average global market capitalization over a consecutive 30 trading-day period. Such continued qualitative listing criteria include, but are not limited to, the satisfaction of certain requirements of the NYSE Governance Rules such as the maintenance of an audit committee satisfying certain criteria including with respect to independence and the continued timely filing of periodic reports with the United States Securities and Exchange Commission. The NYSE may also suspend trading in, and commence proceedings to delist, the securities of an issuer if the issuer or its management engage in operations that are in the opinion of the NYSE contrary to the public interest. Typically, if an issuer or its NYSE-listed securities fall below the NYSE's quantitative or qualitative listing criteria, the NYSE reviews the appropriateness of continued listing and may give consideration to any definitive action proposed by the issuer, pursuant to procedures and timelines set forth in the NYSE listing standards, that would bring the issuer or such securities above the applicable continued listing standards. However, in certain cases, the failure of the issuer or its listed securities to meet certain continued listing criteria may result in immediate suspension and delisting by the NYSE without such evaluation or follow-up procedures.

LSE: The FCA may suspend the Common Shares from trading on the LSE from time to time if it determines that the smooth operation of the market is or may be temporarily jeopardized or it is necessary to protect investors.

Risks Associated with the ATM Program

There is no certainty that gross proceeds of $300 million (or the equivalent in Canadian dollars determined using the daily exchange rate posted by the Bank of Canada on the date the ATM Common Shares are sold) will be raised pursuant to the ATM Program. The ATM Program agents have agreed to use their commercially reasonable efforts to sell, on the Company's behalf, the ATM Common Shares designated by the Company, but the Company is not required to request the sale of the maximum amount offered or any amount and, if the Company requests a sale, the ATM Program agents are not obligated to purchase any ATM Common Shares that are not sold. As a result of the ATM Program being made on a commercially reasonable efforts basis with no minimum, and only as requested by the Company, the Company may raise substantially less than the maximum total offering amount or nothing at all.

Management of the Company will have broad discretion in the application of the net proceeds from the ATM Program and could spend the proceeds in ways that do not improve the Company's results of operations or enhance the value of the Common Shares. The failure by management to apply these funds effectively could result in financial losses that could have a material adverse effect on the Company's business and cause the price of the Common Shares to decline. Pending their use, the Company may invest the net proceeds from the ATM Program in a manner that does not produce income or that loses value.

Equity Price Risk

The Company is exposed to equity price risk as a result of holding long- term equity investments in other companies, including, but not limited to, exploration and mining companies. Just as investing in the Company is inherent with risks such as those set out in this annual information form, by investing in these other companies, the Company is exposed to the risks associated with owning equity securities and those risks inherent in the investee companies. The Company generally does not actively trade these investments. See 'Description of the Business - Long Term Investments'.

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Interest Rate Risk

The Company is exposed to interest rate risk on its outstanding borrowings and short-term investments. Presently, all of the Company's outstanding borrowings are at floating interest rates. The Company monitors its exposure to interest rates and has not entered into any derivative contracts to manage this risk. During the year ended December 31, 2020, the weighted average effective interest rate paid by the Company on its outstanding borrowings was 2.03% (2019 - 4.07%).

During the years ended December 31, 2020 and December 31, 2019, a fluctuation in interest rates of 100 basis points (one percent) would have impacted the amount of interest expensed by approximately $6 million and $11 million, respectively. Depending upon the amount of the Company's outstanding borrowings, fluctuations in the interest rates applicable to the Company could have a material adverse effect on the Company's business, financial condition, results of operations and cash flows.

Dividend Policy

The declaration, timing, amount and payment of dividends are at the discretion of the Board of Directors and will depend upon the Company's future earnings, cash flows, acquisition capital requirements and financial condition, and other relevant factors. There can be no assurance that the Company will continue to declare a dividend on a quarterly, annual or other basis.

Dependence Upon Key Management Personnel

The Company and its subsidiaries have an aggregate of 40 employees, and are therefore dependent upon the services of a small number of employees. The Company is also dependent on the services of a small number of key executives who are highly skilled and experienced. The loss of these persons or the Company's inability to attract and retain additional highly skilled employees, including executives, may adversely affect its business and future operations.

Activist Shareholders

Publicly-traded companies are often subject to demands or publicity campaigns from activist shareholders advocating for changes to corporate governance practices, such as executive compensation practices, social issues, or for certain corporate actions or reorganizations. There can be no assurance that the Company will not be subject to any such campaign, including proxy contests, media campaigns or other activities. Responding to challenges from activist shareholders can be costly and time consuming and may have an adverse effect on the Company's reputation. In addition, responding to such campaigns would likely divert the attention and resources of the Company's management and Board of Directors, which could have an adverse effect on the Company's business and results of operations. Even if the Company were to undertake changes or actions in response to activism, activist shareholders may continue to promote or attempt to effect further changes, and may attempt to acquire control of the Company. If shareholder activists are ultimately elected to the Board of Directors, this could adversely affect the Company's business and future operations. This type of activism can also create uncertainty about the Company's future strategic direction, resulting in loss of future business opportunities, which could adversely affect the Company's business, future operations, profitability and the Company's ability to attract and retain qualified personnel.

Reputation Damage

Reputational damage can be the result of the actual or perceived occurrence of any number of events, and could include any negative publicity, whether true or not. While the Company does not ultimately have direct control over how it is perceived by others, reputational loss could have a material adverse effect on the Company's financial performance, financial condition, cash flows and growth prospects.

Impact on Securities Due to Industry Analysts

Both the market price and trading price of the Common Shares may depend on the opinions of the securities analysts who monitor the operations of the Company and publish research reports on the Company's future performance. The Company does not have control over such analysts, who may downgrade their recommended prices for the Common Shares at any time, issues opinion which are not in line with the Board of Director's view or not even cover the Company in their publications and reports. Such actions by analysts could have an adverse impact on the trading volume and price of the Common Shares.

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Unknown Defects and Impairments

A defect in a streaming transaction and/or a PMPA may arise to defeat or impair the claim of the Company to such streaming transaction, which may have a material adverse effect on the Company. It is possible that material changes could occur that may adversely affect management's estimate of the recoverable amount for any PMPA. Any impairment estimates, which are based on applicable key assumptions and sensitivity analysis, are based on management's best knowledge of the amounts, events or actions at such time, and the actual future outcomes may differ from any estimates that are provided by the Company. Any impairment charges on the Company's carrying value of the PMPAs could have a material adverse effect on the Company.

Information Systems and Cyber Security

Wheaton's information systems, and those of its counterparties under the PMPAs, third-party service providers and vendors, are vulnerable to an increasing threat of continually evolving information systems and cyber security risks. Unauthorized parties may attempt to gain access to these systems or the Company's information through fraud or other means of deceiving the Company's counterparties under its PMPAs, third-party service providers or vendors.

Wheaton's operations depend, in part, on how well Wheaton and its suppliers, as well as counterparties under the PMPAs, protect networks, equipment, information technology ('IT') systems and software against damage from a number of threats. Wheaton has entered into agreements with third parties for hardware, software, telecommunications and other services in connection with its operations. The Company's operations and Mining Operations also depend on the timely maintenance, upgrade and replacement of networks, equipment, IT systems, applications and software, as well as pre-emptive expenses to mitigate the risks of failures. Any of these and other events could result in information system failures, delays and/or increases in capital and remediation expenditures. The failure of information systems or a component of information systems could, depending on the nature of any such failure, adversely impact the Company's reputation and results of operations.

Although to date the Company has not experienced any known material losses relating to cyber attacks or other data/information security breaches, there can be no assurance that Wheaton will not incur such losses in the future. The Company's risk and exposure to these matters cannot be fully mitigated because of, among other things, the evolving nature of these threats. As a result, cyber security and the continued development and enhancement of controls, processes and practices designed to protect systems, computers, software, data and networks from attack, damage or unauthorized access remain a priority.

Any future significant compromise or breach of the Company's data / information security, whether external or internal, or misuse of data or information, could result in additional significant costs, lost sales, fines and lawsuits, unauthorized transactions, inappropriate disclosures, and damage to the Company's reputation. In addition, as the regulatory environment related to data/information security, data collection and use, and privacy becomes increasingly rigorous, with new and constantly changing requirements applicable to Wheaton's business and counterparties to the PMPAs, compliance with those requirements could also result in additional costs. As cyber threats continue to evolve, the Company or its counterparties may be required to expend additional resources to continue to modify or enhance protective measures or to investigate and remediate any security vulnerabilities.

Adequacy of Internal Control over Financial Reporting

The Company documented and tested its internal control procedures during its most recent fiscal year in order to satisfy the requirements of Section 404 of the Sarbanes-Oxley Act ('SOX'). SOX requires an annual assessment by management of the effectiveness of the Company's internal control over financial reporting and an attestation report by the Company's independent auditors addressing this assessment. The Company may fail to achieve and maintain the adequacy of its internal control over financial reporting as such standards are modified, supplemented, or amended from time to time, and the Company may not be able to ensure that it can conclude on an ongoing basis that it has effective internal controls over financial reporting in accordance with Section 404 of SOX. The Company's failure to satisfy the requirements of Section 404 of SOX on an ongoing, timely basis could result in the loss of investor confidence in the reliability of its financial statements, which in turn could harm the Company's business and negatively impact the trading price of the Common Shares or market value of its other securities. In addition, any failure to implement required new or improved controls, or difficulties encountered in their implementation, could harm the Company's operating results or cause it to fail to meet its reporting obligations. There can be no assurance that the Company will be able to remediate material weaknesses, if any, identified in

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future periods, or maintain all of the controls necessary for continued compliance, and there can be no assurance that the Company will be able to retain sufficient skilled finance and accounting personnel. Future acquisitions of companies, if any, may provide the Company with challenges in implementing the required processes, procedures and controls in its acquired operations. Future acquired companies, if any, may not have disclosure controls and procedures or internal control over financing reporting that are as thorough or effective as those required by securities laws currently applicable to the Company.

No evaluation can provide complete assurance that the Company's internal control over financial reporting will detect or uncover all failures of persons within the Company to disclose material information otherwise required to be reported. The effectiveness of the Company's internal controls and procedures could also be limited by simple errors or faulty judgments. In addition, as the Company continues to expand, the challenges involved in implementing appropriate internal controls over financial reporting will increase and will require that the Company continue to improve its internal controls over financial reporting. The Company cannot be certain that it will be successful in complying with Section 404 of SOX and a failure to comply with such requirements could damage the Company's reputation in the market and adversely affect its business and financial condition.

Risks Relating to the Mining Operations

Commodity Price Fluctuations

The price of metals has fluctuated widely in recent years, and future serious price declines could cause continued development of and commercial production from the Mining Operations to be impracticable. Depending on the price of other metals produced from the mines which generate cash flow to the owners, cash flow from the Mining Operations may not be sufficient and such owners could be forced to discontinue production and may lose their interest in, or may be forced to sell, some of their properties. Future production from the Mining Operations is dependent on metal prices that are adequate to make these properties economic.

In addition to adversely affecting the reserve estimates and financial conditions, declining commodity prices can impact operations by requiring a reassessment of the feasibility of a particular project. Such a reassessment may be the result of a management decision or may be required under financing arrangements related to a particular project. Even if the project is ultimately determined to be economically viable, the need to conduct such a reassessment may cause substantial delays or may interrupt operations until the reassessment can be completed.

Impact of Epidemics

See 'Risk Factors - Risks Relating to the Company - Impact of Epidemics' for risks relating to emerging infectious diseases or the threat of outbreaks of viruses or other contagions or epidemic diseases (including the novel COVID-19 virus pandemic) at the Mining Operations.

Mineral Reserve and Mineral Resource Estimates

The reported mineral reserves and mineral resources for the Mining Operations are only estimates. No assurance can be given that the estimated mineral reserves and mineral resources will be recovered or that they will be recovered at the rates estimated. Mineral reserve and mineral resource estimates are based on limited sampling and geological interpretation, and, consequently, are uncertain. Mineral reserve and mineral resource estimates may require revision (either up or down) based on actual production experience. Market fluctuations in the price of metals, as well as increased production costs, short-term operating factors or reduced recovery rates, may render certain mineral reserves and mineral resources uneconomic and may ultimately result in a restatement of estimated mineral reserves and/or mineral resources. For example, the Mining Operations may base their estimates of mineral reserves and/or mineral resources on commodity prices that may be higher than spot commodity prices. The economic viability of a mineral deposit may also be impacted by other attributes of a particular deposit, including, but not limited to, size, grade and proximity to infrastructure, governmental regulations and policy relating to price, taxes, duties, land tenure, land use permitting, the import and export of minerals and environmental protection, by political and economic stability and by a social license to operate in a particular jurisdiction. Any of these factors may require operators of Mining Operations to reduce their mineral reserves and mineral resources, which may result in a material and adverse effect on the Company's profitability, results of operations, financial condition and the trading price of the Company's securities.

Mineral resources that are not mineral reserves do not have demonstrated economic viability. Due to the uncertainty of inferred mineral resources, there is no assurance that inferred mineral resources will be upgraded to proven and probable mineral reserves as a result of continued exploration. It should not be assumed that any part or all of the mineral resources on

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properties underlying the Company's streaming transactions constitute or will be converted into mineral reserves. See 'Technical Information - Cautionary Note to United States Investors Regarding Presentation of Mineral Reserve and Mineral Resource Estimates.'

Production Forecasts

The Company prepares estimates and forecasts of future attributable production from the Mining Operations and relies on public disclosure and other information it receives from the owners, operators and independent experts of the Mining Operations to prepare such estimates. Such information is necessarily imprecise because it depends upon the judgment of the individuals who operate the Mining Operations as well as those who review and assess the geological and engineering information. These production estimates and projections are based on existing mine plans and other assumptions with respect to the Mining Operations which change from time to time, and over which the Company has no control, including the availability, accessibility, sufficiency and quality of ore, the costs of production, the operators' ability to sustain and increase production levels, the sufficiency of infrastructure, the performance of personnel and equipment, the ability to maintain and obtain mining interests and permits and compliance with existing and future laws and regulations. Any such information is forward-looking and no assurance can be given that such production estimates and projections will be achieved. Actual attributable production may vary from the Company's estimates for a variety of reasons, including: actual ore mined varying from estimates of grade, tonnage, dilution and metallurgical and other characteristics; actual ore mined being less amenable than expected to mining or treatment; short-term operating factors relating to the ore reserves, such as the need for sequential development of orebodies and the processing of new or different ore grades; delays in the commencement of production and ramp up at new mines; revisions to mine plans; unusual or unexpected orebody formations; risks and hazards associated with the Mining Operations, including but not limited to cave-ins, rock falls, rock bursts, pit wall failures, seismic activity, weather related complications, fires or flooding or as a result of other operational problems such as production drilling challenges, power failures or a failure of a key production component such as a hoist, an autoclave, a filter press or a grinding mill; and unexpected labour shortages, strikes, local community opposition or blockades. Occurrences of this nature and other accidents, adverse conditions or operational problems in future years may result in the Company's failure to achieve the production forecasts currently anticipated. If the Company's production forecasts prove to be incorrect, it may have a material adverse effect on the Company.

Governmental Regulations

The Mining Operations are subject to extensive laws and regulations governing exploration, development, production, exports, taxes, labour standards, waste disposal, protection and remediation of the environment, reclamation, historic and cultural resources preservation, mine safety and occupational health, handling, storage and transportation of hazardous substances and other matters. The costs of discovering, evaluating, planning, designing, developing, constructing, operating and closing the Mining Operations in compliance with such laws and regulations are significant. It is possible that the costs and delays associated with compliance with such laws and regulations could become such that the owners or operators of the Mining Operations would not proceed with the development of or continue to operate a mine. Moreover, it is possible that future regulatory developments, such as increasingly strict environmental protection laws, regulations and enforcement policies thereunder, and claims for damages to property and persons resulting from the Mining Operations could result in substantial costs and liabilities for the owners or operators of the Mining Operations in the future such that they would not proceed with the development of, or continue to operate, a mine or mines which may impact on the amount of precious metals or cobalt that the Company may receive under the terms of its relevant PMPAs and which could have a material adverse effect on the Company's business and financial position.

With respect to the Argentinean federal glacier protection law and other environmental matters relating to the Pascua-Lama project, see 'Description of the Business - Principal Product - Pascua-Lama Project'. See also 'Description of the Business - Principal Product - Peñasquito Mine'.

International Operations

The Mining Operations are all exposed to various levels of political, economic and other risks and uncertainties due to their location as follows:

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These risks and uncertainties include, but are not limited to, terrorism, outbreak of disease or epidemics, hostage taking, military repression, crime, political instability, currency controls, extreme fluctuations in currency exchange rates, high rates of inflation, labour unrest, the risks of war or civil unrest, expropriation and nationalization, renegotiation or nullification of existing concessions, licenses, permits, approvals and contracts, illegal mining, changes in taxation and mining laws, regulations and policies, restrictions on foreign exchange and repatriation, and changing political conditions and governmental regulations relating to foreign investment and the mining business. Colombia, Mexico, Argentina, Peru and Greece are countries that have experienced political, social and economic unrest in the past and protestors have from time to time targeted foreign mining firms.

Changes, if any, in mining or investment policies or shifts in political attitude may adversely affect the operations or profitability of the Mining Operations in these countries. Operations may be affected in varying degrees by government regulations with respect to, but not limited to, restrictions on production, price controls, export controls, currency remittance, income taxes, expropriation of property, foreign investment, maintenance of claims, environmental legislation, land use, land claims of local people, water use, mine safety and the rewarding of contracts to local contractors or requiring foreign contractors to employ citizens of, or purchase supplies from, a particular jurisdiction. Failure to comply strictly with applicable laws, regulations and local practices relating to mineral right applications and tenure, could result in additional taxes, costs, fines, penalties or other expenses being levied on the Mining Operations, as well as other potential adverse consequences such as economic impacts on the Mining Operations, loss, reduction or expropriation of entitlements, or the imposition of additional local or foreign parties as joint venture partners with carried or other interests.

For example, in February 2016, Primero (the then owner of the San Dimas mine) announced that its Mexican subsidiary, PEM, received a legal claim from the Mexican tax authorities, SAT, seeking to nullify the APA. As disclosed by First Majestic in its MD&A for the period ended December 31, 2020, if the SAT is successful in retroactively nullifying the APA and issuing reassessments, it would likely have a material adverse effect on First Majestic's results of operations, financial condition and cash flows. First Majestic states that they continue to believe PEM's filings were appropriate and continue to believe its tax filing position based upon the APA is correct. However, they note that should PEM ultimately be required to pay tax on its silver revenues based on market prices without any mitigating adjustments, the incremental income tax for the years 2010-2018 would be approximately $219.2 million, before interest or penalties. In the event that First Majestic (i) is unable to defend the validity of the APA, (ii) is unable to pay taxes in Mexico based on realized silver prices, and/or (iii) the SAT proceedings or actions otherwise have an adverse impact on the business, financial condition or results of operations of First Majestic, then, in Wheaton's opinion (i) First Majestic may be unable to deliver some or all of the silver ounces due under the San Dimas PMPA; (ii) First Majestic may otherwise default in its obligations under the San Dimas PMPA; or (iii) First Majestic may cease operations at San Dimas if it is uneconomic to continue to operate the mine. As a result, any of these or other adverse financial or operational consequences on First Majestic may also have a material adverse effect on Wheaton's business, financial condition, results of operations and cash flows.

See also 'Risks Relating to the Company - Security Over Underlying Assets' and 'Risks Relating to the Company - Counterparty Credit and Liquidity Risk'.

The occurrence of these various factors and uncertainties cannot be accurately predicted and could have an adverse effect on the Mining Operations or on the ability of the companies with which the Company has PMPAs to perform their obligations under those PMPAs.

Exploration, Development, Operating, Expansions and Improvements Risks

Mining operations generally involve a high degree of risk. The Mining Operations are subject to all the hazards and risks normally encountered in the exploration, development and production of metals, including unusual and unexpected geologic formations, seismic activity, rock bursts, cave-ins, flooding, environmental hazards and the discharge of toxic chemicals, explosions and other conditions involved in the drilling, blasting and removal of material, any of which could

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result in damage to, or destruction of mines and other producing facilities, damage to property, injury or loss of life, environmental damage, work stoppages, delays in production, increased production costs and possible legal liability. Milling operations, waste rock dumps and tailings impoundments are subject to hazards such as equipment failure, or breaches in or the failure of retaining dams around tailings disposal areas and may be subject to ground movements or deteriorating ground conditions, or extraordinary weather events that may result in structure instability, or impoundment overflow, requiring that deposition activities be suspended. The tailings storage facility infrastructure, including pipelines, pumps, liners, etc. may fail or rupture. Should any of these risks or hazards affect a Mining Operation, it may (i) result in an environmental release or environmental pollution and liability; (ii) cause the cost of development or production to increase to a point where it would no longer be economic to produce, (iii) result in a write down or write-off of the carrying value of one or more projects, (iv) cause extended interruption to the business, including delays or stoppage of mining or processing, (v) result in the destruction of properties, processing facilities or third party facilities necessary to the Mining Operations, (vi) cause personal injury or death and related legal liability, (vii) result in regulatory fines and penalties, revocation or suspension of permits or licenses; (viii) result in the loss of insurance coverage; or (ix) result in the loss of a social license to operate. The occurrence of any of above-mentioned risks or hazards could result in an interruption or suspension of operation of the Mining Operations and have a material adverse effect on the Company and the trading price of the Company's securities as well as the Company's reputation.

While the Brumadinho Incident did not occur at any mine that is the subject of the Company's PMPAs, the long term consequences of the Brumadinho Incident may have an impact on the Company's business, financial condition and results of operations. See 'Description of the Business - Principal Product - Salobo Mine - Operational Update Relative to Vale' for disclosure regarding the Brumadinho Incident. See also 'Risks Relating to the Company - Counterparty Credit and Liquidity Risk', 'Risks Relating to the Company - Security Over Underlying Assets', 'Risks Relating to the Company - Indebtedness and Guarantees Risk', 'Risks Relating to the Company - Mine Operator ConcentrationRisk' and 'Risks Relating to the Mining Operations - International Operations'.

The Mining Operations are limited to the area of interest as set out in each PMPA and as a result, to the extent that there is exploration, development, expansions or improvements which extend outside of the particular area of interest of a PMPA, the Company would not participate in the benefit of such exploration, development, expansions or improvements.

The exploration for and development of mineral deposits involves significant risks which even a combination of careful evaluation, experience and knowledge may not eliminate. Few properties which are explored are ultimately developed into producing mines. Major expenditures may be required to locate and establish mineral reserves, to develop metallurgical processes and to construct mining and processing facilities at a particular site. It is impossible to ensure that the exploration or development programs planned by the owners or operators of the Mining Operations will result in a profitable commercial mining operation. Whether a mineral deposit will be commercially viable depends on a number of factors, some of which are: the particular attributes of the deposit, such as size, grade and proximity to infrastructure; metal prices which are highly cyclical; government regulations, including regulations relating to prices, taxes, royalties, land tenure, land use, importing and exporting of minerals and environmental protection; and political stability. The exact effect of these factors cannot be accurately predicted. There can be no assurances that Mining Operations will be established or that the Mining Operations, which are not currently in production, will be brought into a state of commercial production.

While these risks exist for all Mining Operations, these risks are heightened with Early Deposit interests in which the Company invests prior to the production of a final feasibility study. In such a case, there can be no assurances that the Company will be able to secure repayment of any upfront deposit paid to the counterparty under the terms of the precious metals purchase agreement where Mining Operations are not established or not brought into a state of commercial production.

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Where precious metal is acquired from the mine operator in concentrate form, generally the risk of loss of such precious metal remains with the mine operator until it is acquired by third-party smelters or traders. However, delivery of such concentrates by a mine operator to such third-party smelters or traders is subject to a high level of environmental and financial risks, including delays in delivery of shipments, road blocks, political unrest, outbreak of disease or epidemics, terrorism, theft, weather conditions and environmental liabilities in the event of an accident or a spill. The occurrence of any of above-mentioned risks or hazards could result in an interruption or suspension of delivery of concentrate to third-party smelters or traders and have a material adverse effect on the Company and the trading price of the Company's securities.

Environmental Regulation and Climate Change

All phases of mining and exploration operations are subject to governmental regulation including environmental regulation. Environmental legislation is becoming stricter, with increased fines and penalties for non-compliance, more stringent environmental assessments of proposed projects and heightened responsibility for companies and their officers, directors and employees. Continuing issues with tailings dam failures at other companies' operations may increase the likelihood that these stricter standards and enforcement mechanisms will be implemented in the future. There can be no assurance that possible future changes in environmental regulation will not adversely affect the Mining Operations, and consequently, the results of Wheaton's operations. Failure by the operators of the Mining Operations to comply with these laws, regulations and permitting requirements may result in enforcement actions, including orders issued by regulatory or judicial authorities causing operations to cease or be curtailed, and may include corrective measures requiring capital expenditures, installation of additional equipment, or remedial actions. Parties engaged in Mining Operations or in the exploration or development of mineral properties may also be required to compensate those suffering loss or damage by reason of the mining activities and may have civil or criminal fines or penalties imposed for violations of applicable laws or regulations. The occurrence of any environmental violation or enforcement action may have an adverse impact on the Mining Operations, Wheaton's reputation and could adversely affect Wheaton's results of operations. As well, environmental hazards may exist on a property in which the owners or operators of the Mining Operations hold an interest which were caused by previous or existing owners or operators of the properties and of which such owners or operators are not aware at present and which could impair the commercial success, levels of production and continued feasibility and project development and mining operations on these properties.

Wheaton acknowledges international and community concerns around climate change. Wheaton supports initiatives consistent with international initiatives on climate change. Wheaton also acknowledges the increase in the introduction of climate change legislation and treaties at the international, national, state/provincial and local levels. Government regulation relating to emission levels (such as carbon taxes) and energy efficiency is becoming more prevalent and stringent. While some of the costs associated with reducing emissions may be offset by increased energy efficiency and technological innovation, Wheaton expects that increased government regulation will result in increased costs at some Mining Operations if the current regulatory trend continues.

All of Wheaton's PMPAs are exposed to climate-related risks through the Mining Operations. Climate change could result in challenging conditions and extreme weather that may adversely affect the Mining Operations and there can be no assurances that Mining Operations will be able to predict, respond to, measure, monitor or manage the risks posed as a result of climate change factors. Climate-related risks could also result in shifts in demand for certain commodities, including precious metals and cobalt. While Wheaton will consider certain environmental and climate factors in its decision to proceed with a streaming transaction, Wheaton may not be able to accurately predict which Mining Operations will be subject to climate-related risks or the quantum of such risks. Wheaton's own operations are exposed to climate-related risks as a result of geographical location. Wheaton has sought to reduce its environmental footprint and located its operations in appropriate facilities, however Wheaton's operations may be adversely affected by climate change factors, including extreme weather.

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Licenses, Permits, Approvals and Rulings

The Mining Operations are subject to receiving and maintaining licenses, permits, approvals and rulings from appropriate governmental authorities. Changes in laws and regulations or in the granting or renewal of licenses, permits, approvals and rulings could have a material adverse effect on the revenue the Company derives from the Mining Operations. There can be no assurance that such licenses, permits, approvals or rulings will continue to be obtained, that delays will not occur in connection with obtaining all necessary renewals of such licenses, permits, approvals or rulings for the existing operations, or that additional licenses, permits, approvals or rulings for any possible future changes to operations or additional permits associated with new legislation will be obtained. Prior to any development on any of these properties, licenses and permits from appropriate governmental authorities may be required. Such licenses and permits are subject to change and legal challenge in various circumstances and are required to be kept in good standing through a variety of means, including cash payments and satisfaction of conditions of issue. Such licenses and permits are subject to expiration, relinquishment and/or termination without notice to, control of or recourse by the Company. There can be no assurance that the owners or operators of the Mining Operations will continue to hold all licenses and permits necessary to develop or continue operating at any particular property or successfully respond to any legal challenge to any such licenses or permits. Any failure to comply with applicable laws and regulations, permits and licenses, or to maintain permits and licenses in good standing, even if inadvertent, could result in interruption or closure of exploration, development or mining operations or fines, penalties or other liabilities accruing to the owner or operator of the Mining Operations. Any such occurrence could substantially decrease production or cause the termination of operations on the property and have a material adverse effect on the Company and the trading price of the Company's securities.

See 'Permitting, Construction, Development and Expansion Risk' for additional permitting risks associated with development projects.

Permitting, Construction, Development and Expansion Risk

The Salobo mine, the Keno Hill mines, the Voisey's Bay mine, the Pascua-Lama project, the Loma de La Plata project, the Rosemont project, the Constancia mine, the Toroparu project, the Kutcho project, the Cotabambas project and the Marmato mine are currently in various stages of permitting, construction, development and expansion. Construction, development and expansion of such projects is subject to numerous risks, including, but not limited to, delays in obtaining equipment, material and services essential to completing construction of such projects in a timely manner; delays or inability to obtain all required permits; changes in environmental or other government regulations; currency exchange rates; labour shortages; and fluctuation in metal prices. There can be no assurance that the operators of such projects will have the financial, technical and operational resources to complete the permitting, construction, development and expansion of such projects in accordance with current expectations or at all. In the event that such permitting, construction, development and expansion of such projects cannot be completed, this could impact on the amount of precious metals or cobalt that the Company may receive under the terms of its relevant PMPAs which could have a material adverse effect on the Company's business, financial condition, results of operations and cash flows.

See 'Description of the Business - Principal Product - Salobo Mine', 'Description of the Business - Principal Product - Constancia Mine' and 'Description of the Business - Principal Product - Peñasquito Mine'.

Land Title and Indigenous Peoples

A defect in the chain of title to any of the properties underlying the Mining Operations or necessary for the anticipated development or operation of a particular project to which an interest relates may arise to defeat or impair the claim of the operator to a property. In addition, claims by third parties or aboriginal groups in Canada and elsewhere may impact on the operator's ability to conduct activities on a Mining Operation to the detriment of the Company's interests. No assurances can be given that there are no title defects affecting the properties and mineral claims owned or used by the Mining Operations. Such properties and claims may be subject to prior unregistered liens, agreements, transfers or claims, including native land claims, and title may be affected by, among other things, undetected defects. To the extent an owner or operator does not have title to the property, it may be required to cease operations or transfer operational control to another party. In addition, the operators of such operations may be unable to operate them as permitted or to enforce their rights with respect to their properties and claims which may ultimately impair the ability of these operators to fulfill their obligations under the PMPAs.

Various international and national, state and provincial laws, codes, regulations, resolutions, conventions, guidelines, treaties, and other materials relate to the rights of indigenous peoples. Some of the Mining Operations are located

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in areas presently or previously inhabited or used by indigenous peoples. Many of these laws impose obligations on government to respect the rights of indigenous people. Some mandate that government consult with indigenous people regarding government actions which may affect indigenous people, including actions to approve or grant mining rights or permits. The obligations of government and private parties under the various international and national laws pertaining to indigenous people continue to evolve and be defined and their impact may be uncertain. One or more groups of indigenous people may oppose continued operation, further development, or new development of the Mining Operations. Such opposition may be directed through legal or administrative proceedings or protests, roadblocks or other forms of public expression against the activities at the Mining Operations. Opposition by indigenous people to such activities may require modification of or preclude operation or development of projects or may require the entering into of agreements with indigenous people. Claims and protests of indigenous peoples may disrupt or delay activities of the operators of the Mining Operations and therefore may impact on the amount of precious metals and cobalt that the Company may receive under the terms of its relevant PMPAs which could have a material adverse effect on the Company's business, financial condition, results of operations and cash flows.

San Dimas Ejidos - First Majestic has noted that three of the properties included in the San Dimas mine are subject to legal proceedings commenced by Ejidos seeking title to the property. First Majestic has indicated that the proceedings were initiated against defendants who were previous owners of the properties, either deceased individuals who, according to certain public deeds, owned the properties more than 80 years ago, corporate entities that are no longer in existence, or Goldcorp companies. Some of the proceedings also name the Tayolita Property Public Registry as co-defendant. First Majestic has indicated that in 2015, two of the legal proceedings were decided in favour of the Ejidos, resulting in First Majestic gaining standing rights as an affected third party. First Majestic has disclosed that it obtained injunctions to suspend any legal effect of the decision while it proceeds with a legal process to nullify the Ejidos' claim by submitting evidence of First Majestic's legal title. First Majestic has indicated that in February 2017 and April 2017 that two of the two legal processes to nullify the Ejidos' claim was decided in favour of First Majestic were confirmed on appeal but remain subject to a final appeal. First Majestic has indicated that the third legal proceeding commenced by the Ejidos has not been decided and First Majestic remains without standing to participate therein because it was not named as a party. In the event a final decision is rendered in favour of the Ejido in that proceeding, First Majestic has indicated that it will seek to annul such decision by defending its position as the legitimate owner. First Majestic has indicated that an additional administrative procedure was initiated before the Federal government by the Ejido San Dimas requesting the purchase of land which is the subject of the Guamuchil Suit for designation as 'National Land'. First Majestic has submitted evidence of ownership which it believes invalidates the Ejido San Dimas request. Conclusion of this procedure remains outstanding. First Majestic has indicated that the San Dimas mine could face higher costs associated with agreed or mandated payments that would be payable to the Ejidos for use of the properties. However, where such matters impact the viability of the mine, the Company would not be entitled to receive any precious metals under the San Dimas PMPA as First Majestic would no longer have the right to mine that land.

Constancia Consulta Previa Law - As per Hudbay's MD&A for the year ended December 31, 2020, in early January 2021, Hudbay received the final mining permit for the development and operation of Pampacancha. Additionally, in January 2021, Hudbay commenced limited pre-development activities for Pampacancha, including haul road construction and site preparation work. Hudbay indicate that they continue to advance discussions with the remaining land user family at Pampacancha. Pre-stripping activities are expected to commence once the remaining land user agreement has been completed. As per Hudbay's MD&A for the year ended December 31, 2020, in late January 2021, new COVID-19 restrictions were announced by the government of Peru. See 'Risks Relating to the Company - Impact of Epidemics'. Hudbay notes that as a result of these restrictions and the need to complete the remaining land user agreements, Hudbay no longer expects to mine four million tonnes of ore from the Pampacancha deposit by June 30, 2021. Hudbay also notes that if they fail to meet this milestone, they will be required to deliver an additional 8,020 ounces of gold to the Company in equal quarterly installments, commencing September 30, 2021 in accordance with the Constancia PMPA. Hudbay and the Company are currently in discussions about, among other things, alternatives to defer the additional gold deliveries over the Pampacancha mine life.

Salobo Xikrin do Cateté - Vale has reported that associations representing the indigenous community of Xikrin do Cateté brought a public civil action against Vale, the Federal Environmental Agency (IBAMA) and the Federal Indigenous Agency (FUNAI), seeking the suspension of the environmental permitting process of Salobo mine. Vale has reported that the associations contend that FUNAI and IBAMA have failed to conduct the appropriate studies regarding the affected indigenous communities during the environmental permitting process and contends that Vale's operations would be contaminating the water of the Itacaiunas River and consequently that the indigenous groups affected by this mine have not provided the required consent. Vale notes that the plaintiffs also requested a monthly payment of Brazilian Real$2 million for each association until the defendants conclude the studies. Vale reports that applicable law provides for mandatory

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consultation with the indigenous communities located within ten kilometers of the mine, and these indigenous communities are located more than 22 kilometers away from the mine. Vale noted that in October 2017 the court denied plaintiffs' request for an injunction suspending the Salobo mine and that in February 2019, Vale, IBAMA, and the environmental agency Instituto Chico Mendes de Conservacao da Biodiversidade filed a joint answer in court, rebutting the plaintiff's claims, and reaffirming the legality of the environmental permitting process of Salobo mine and the fulfillment of all conditions imposed by relevant authorities. Vale noted that in March 2019, the Federal Prosecution Office presented an opinion for the suspension of the activities in the Salobo mine. A decision by the federal court is pending. In July 2019, the Judge of the Federal Court of Maraba partially granted an injunction requested by the Indigenous Associations, ordering Vale and Salobo to prepare the indigenous component study of the Salobo Mine project, and rejected all other requests filed by the plaintiff, including project shutdown and monthly fund payments. In December 2019, in accordance with the procedure established in the legislation for the preparation of indigenous component studies, Vale presented the curriculum of the professionals who will prepare such study, as well as the work plan for the acknowledgement and approval by FUNAI. A response from FUNAI is pending. Vale announced that the decision held by the Federal Court of Maraba does not affect its operations at the Salobo mine. Vale appealed this decision and announced that it would continue to vigorously contest the action. However, if as a result of these proceedings it is determined that the activities at the Salobo mine should be suspended then the ability of the Company to receive gold under the terms of the Salobo PMPA would be materially impacted which in turn could have a material impact on the Company's financial conditions, results of operations and cash flows.

For additional information regarding these matters, see 'Description of the Business - Principal Product - Peñasquito Mine, 'Description of the Business - Principal Product - San Dimas Mine', 'Description of the Business - Principal Product - Constancia Mine' and 'Description of the Business - Principal Product - Salobo Mine'.

Compliance with Laws

Failure to comply with applicable laws, regulations and permitting requirements may result in enforcement actions thereunder, including orders issued by regulatory or judicial authorities causing operations to cease or be curtailed, and may include corrective measures requiring capital expenditures, installation of additional equipment or remedial actions. Parties engaged in mining operations may be required to compensate those suffering loss or damage by reason of the mining activities and may be liable for civil or criminal fines or penalties imposed for violations of applicable laws or regulations. Amendments to current laws, regulations and permitting requirements, or more stringent application of existing laws, may have a material adverse effect on the owners or operators of the Mining Operations, resulting in increased capital expenditures or production costs, reduced levels of production at producing properties or abandonment or delays in development of properties. If the owners or operators of the Mining Operations do not conduct their activities in accordance with the relevant local laws. The licenses and/or permits held by them in respect of the Mining Operations could be revoked or suspended and this in turn could impact production at the Mining Operations and as a result could have a maerial adverse effect on the Company's business, financial condition, results of operations and cash flows.

Infrastructure and Employees

Natural resource exploration, development and mining activities are dependent on the availability of mining, drilling and related equipment in the particular areas where such activities are conducted. A limited supply of such equipment or access restrictions may affect the availability of such equipment to the owners and operators of the Mining Operations and may delay exploration, development or extraction activities. Certain equipment may not be immediately available, or may require long lead time orders. The lack of availability on acceptable terms or the delay in the availability of any one or more of these items could prevent or delay exploration, development or production at the Mining Operations.

Mining, processing, development and exploration activities depend, to one degree or another, on adequate infrastructure. Reliable roads, bridges, power sources and water supply are important determinants, which affect capital and operating costs. Unusual or infrequent weather phenomena, sabotage, government or other interference in the maintenance or provision of such infrastructure could adversely affect the Mining Operations. There is no assurance that the Mining Operations will be able to secure adequate infrastructure going forward or on reasonable terms.

The ability of the owners and operators of properties to hire and retain geologists and persons with mining expertise is key to those operations. Changes in legislation or otherwise in the relationships of the owners and operators of such properties with their employees may result in strikes, lockouts or other work stoppages. If these factors cause the owners and operators of such properties to decide to cease production at one or more of the properties, such decision could impact on the

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amount of precious metals or cobalt that the Company may receive under the terms of the relevant PMPAs which could have a material adverse effect on the Company's business, financial condition, results of operations and cash flows.

Need for Additional Mineral Reserves

Because mines have limited lives based primarily on proven and probable mineral reserves, the Mining Operations must continually replace and expand their mineral reserves as their mines produce metals. The life of mine estimates for the Mining Operations may not be correct. The ability of the owners or operators of the Mining Operations to maintain or increase their annual production of precious metals or cobalt will be dependent in significant part on their ability to bring new mines into production and to expand mineral reserves at existing mines. In the event that the future annual production of precious metals or cobalt is reduced due to a deplation of mineral reserves at the Mining Operations and an inability to extend the life of a mine, the Company's future earning potential from any such Mining Operation could also be reduced and as a result could have a material adverse effect on the Company's business, financial condition, results of operations and cash flows.

Additional Capital

The mining, processing, development and exploration of the Mining Operations may require substantial additional financing. Failure to obtain sufficient financing may result in delaying or indefinite postponement of exploration, development or production on any or all of the Mining Operations and related properties or even a loss of property interest. There can be no assurance that additional capital or other types of financing will be available if needed or that, if available, will be on satisfactory terms and a failure of the mining operator in obtaining such financing could impact production at the Mining Operations and consequently may impact on the amount of precious metals or cobalt that the Company may receive under the terms of its PMPAs which could have a material adverse effect on the Company's business, financial condition, results of operations and cash flows.

Challenging Global Financial Conditions

Global financial conditions have been characterized by increased volatility, with numerous financial institutions having either gone into bankruptcy or having to be rescued by government authorities, as well as a result of the COVID-19 virus pandemic. Global financial conditions could suddenly and rapidly destabilize in response to existing and future events, including the COVID-19 virus pandemic, as government authorities may have limited resources to respond to existing or future crises. Global capital markets have continued to display increased volatility in response to global events, including the COVID-19 virus pandemic. Future crises may be precipitated by any number of causes, including natural disasters, epidemics (such as the COVID-19 virus pandemic), geopolitical instability, changes to energy prices or sovereign defaults. Any sudden or rapid destabilization of global economic conditions could negatively impact the Company's ability, or the ability of the operators of the properties in which the Company holds streams or other interests, to obtain equity or debt financing or make other suitable arrangements to finance their projects. If increased levels of volatility continue or in the event of a rapid destabilization of global economic conditions, including as a result of the COVID-19 virus pandemic, it may result in a material adverse effect on the Company and the trading price of the Company's securities could be adversely affected.

TECHNICAL INFORMATION

CIM Standards Definitions

The estimated Mineral Reserves and Mineral Resources for the Mining Operations have been calculated in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum ('CIM') - Definitions adopted by CIM Council on May 10, 2014 (the 'CIM Standards') or in accordance with the Australasian Code for Reporting of Mineral Resources and Ore Reserves (the 'JORC Code'), the Australian worldwide standards, and were restated in accordance with the requirements of the Canadian Securities Administrators' National Instrument 43-101Standards of Disclosure for Mineral Projects ('NI 43-101') to comply with the CIM Standards. The following definitions are reproduced from the CIM Standards:

The term 'Mineral Resource' is a concentration or occurrence of diamonds, natural solid inorganic material, or natural solid fossilized organic material including base and precious metals, coal, and industrial minerals in or on the Earth's crust in such form, grade or quality and quantity that there are reasonable prospects for eventual economic extraction. The location, quantity, grade or quality, continuity and other geological characteristics of a Mineral Resource are known, estimated or interpreted from specific geological evidence and knowledge including sampling. Mineral Resources are sub-divided, in order of increasing geological confidence, into Inferred, Indicated and Measured categories.

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The term 'Inferred Mineral Resource' is that part of a Mineral Resource for which quantity and grade or quality are estimated on the basis of limited geological evidence and sampling. Geological evidence is sufficient to imply but not verify geological and grade or quality continuity. An Inferred Mineral Resource is based on limited information and sampling gathered through appropriate sampling techniques from locations such as outcrops, trenches, pits, workings and drill holes.

The term 'Indicated Mineral Resource' is that part of a Mineral Resource for which quantity, grade or quality, densities, shape and physical characteristics are estimated with sufficient confidence to allow the application of Modifying Factors in sufficient detail to support mine planning and evaluation of the economic viability of the deposit. Geological evidence is derived from adequately detailed and reliable exploration, sampling and testing and is sufficient to assume geological and grade or quality continuity between points of observation.

The term 'Measured Mineral Resource' is that part of a Mineral Resource for which quantity, grade or quality, densities, shape and physical characteristics are established with sufficient confidence to allow the application of Modifying Factors to support detailed mine planning and final evaluation of the economic viability of the deposit.

The term 'Modifying Factors' are considerations used to convert Mineral Resources to Mineral Reserves. These include, but are not restricted to, mining, processing, metallurgical, infrastructure, economic, marketing, legal, environmental, social and governmental factors.

The term 'Mineral Reserve' is the economically mineable part of a Measured and/or Indicated Mineral Resource. It includes diluting materials and allowances for losses, which may occur when the material is mined or extracted and is defined by studies at Pre-Feasibility or Feasibility level as appropriate that include application of Modifying Factors. Such studies demonstrate that, at the time of reporting, extraction could reasonably be justified. The reference point at which Mineral Reserves are defined, usually the point where the ore is delivered to the processing plant, must be stated. It is important that, in all situations where the reference point is different, such as for a saleable product, a clarifying statement is included to ensure that the reader is fully informed as to what is being reported.

The term 'Probable Mineral Reserve' is the economically mineable part of an Indicated Mineral Resource and, in some circumstances, a Measured Mineral Resource. The confidence in the Modifying Factors applying to a Probable Mineral Reserve is lower than that applying to a Proven Mineral Reserve.

The term 'Proven Mineral Reserve' is the economically mineable part of a Measured Mineral Resource. A Proven Mineral Reserve implies a high degree of confidence in the Modifying Factors.

Cautionary Note to United States Investors Regarding Presentation of Mineral Reserve and Mineral Resource Estimates

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The SEC has adopted amendments to its disclosure rules to modernize the mineral property disclosure requirements for issuers whose securities are registered with the SEC under the U.S. Securities Exchange Act of 1934, as amended (the 'Exchange Act'). These amendments became effective February 25, 2019 (the 'SEC Modernization Rules') with compliance required for the first fiscal year beginning on or after January 1, 2021. Under the SEC Modernization Rules, the historical property disclosure requirements for mining registrants included in SEC Industry Guide 7 will be rescinded and replaced with disclosure requirements in subpart 1300 of SEC Regulation S-K. As a result of the adoption of the SEC Modernization Rules, the SEC will recognize estimates of 'measured mineral resources', 'indicated mineral resources' and 'inferred mineral resources.' Following the transition period, as a foreign private issuer that is eligible to file reports with the SEC pursuant to the multi-jurisdictional disclosure system, the Company is not required to provide disclosure on its mineral properties under the SEC Modernization Rules and will continue to provide disclosure under NI 43-101.

The information contained herein has been prepared in accordance with the requirements of the securities laws in effect in Canada, which differ from the requirements of United States securities laws. The terms 'mineral reserve', 'proven mineral reserve' and 'probable mineral reserve' are Canadian mining terms defined in accordance with Canadian National Instrument 43-101 - Standards of Disclosure for Mineral Projects ('NI 43-101') and the Canadian Institute of Mining, Metallurgy and Petroleum (the 'CIM') - CIM Definition Standards on Mineral Resources and Mineral Reserves, adopted by the CIM Council, as amended (the 'CIM Standards'). In addition, the terms 'mineral resource', 'measured mineral resource', 'indicated mineral resource' and 'inferred mineral resource' are defined in and required to be disclosed by NI 43-101. Investors are cautioned not to assume that any part or all of the mineral deposits in these categories will ever be converted into reserves. 'Inferred mineral resources' have a great amount of uncertainty as to their existence and as to their economic and legal feasibility. It cannot be assumed that all or any part of an inferred mineral resource will ever be upgraded to a higher category. Under Canadian rules, estimates of inferred mineral resources may not form the basis of feasibility or pre-feasibility studies, except in rare cases.

Investors are cautioned not to assume that all or any part of an inferred mineral resource exists or is economically or legally mineable. Mineral resources that are not mineral reserves do not have demonstrated economic viability. Disclosure of 'contained ounces' in a resource is permitted disclosure under Canadian regulations. Accordingly, information contained herein that describes Wheaton's mineral deposits may not be comparable to similar information made public by U.S. companies subject to reporting and disclosure requirements under the United States federal securities laws and the rules and regulations thereunder. United States investors are urged to consider closely the disclosure in Wheaton's Form 40-F, a copy of which may be obtained from Wheaton or from http://www.sec.gov/edgar.html.

In addition, the SEC has amended its definitions of 'proven mineral reserves' and 'probable mineral reserves' to be 'substantially similar' to the corresponding definitions under the CIM Definition Standards that are required under NI 43-101. However, while the above terms are 'substantially similar' to CIM Definition Standards, there are differences in the definitions under the SEC Modernization Rules and the CIM Definition Standards. Accordingly, there is no assurance any mineral reserves or mineral resources that the Company may report as 'proven mineral reserves', 'probable mineral reserves', 'measured mineral resources', 'indicated mineral resources' and 'inferred mineral resources' under NI 43-101 would be the same had the Company prepared the reserve or resource estimates under the standards adopted under the SEC Modernization Rules.

Summary of Mineral Reserves and Mineral Resources

The following tables set forth the estimated Mineral Reserves and Mineral Resources (gold, silver, palladium and/or cobalt) for the mines relating to which the Company has PMPAs, adjusted where applicable to reflect the Company's percentage entitlement to gold, silver, palladium and/or cobalt produced from such mines, as of December 31, 2020, unless otherwise noted. The tables are based on information available to the Company as of the date of this annual information form, and therefore will not reflect updates, if any, after such date. The most current Mineral Reserves and Mineral Resources will be available on the Company's website.

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See Notes Below.

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