Spartan Acquisition III Corp.

11/26/2021 | Press release | Distributed by Public on 11/26/2021 16:14

Amendment to Quarterly Report (Form 10-Q/A)

spaq-10qa_20210930.htm

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-Q/A
Amendment No. 1

(Mark One)

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2021

OR

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Spartan Acquisition Corp. III

(Exact name of registrant as specified in its charter)

Delaware

001-40022

86-1182458

(State or other jurisdiction
of incorporation)

(Commission File Number)

(I.R.S. Employer
Identification No.)

9 West 57th Street, 43rd Floor
New York, NY

10019

(Address of principal executive offices)

(Zip Code)

(212) 515-3200

(Registrant's telephone number, including area code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange on
which registered

Units, each consisting of one share of Class A common stock and one-fourth of one warrant

SPAQ.U

The New York Stock Exchange

Class A common stock, par value $0.0001 per share

SPAQ

The New York Stock Exchange

Warrants, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 per share

SPAQ.WS

The New York Stock Exchange

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. YesNo

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). YesNo

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer

Accelerated filer

Non-accelerated filer

Smaller reporting company

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes No

As of November 10, 2021, 55,200,000 shares of Class A common stock, par value $0.0001 per share, and 13,800,000 shares of Class B common stock, par value $0.0001 per share, were issued and outstanding.

EXPLANATORY NOTE

References throughout this Amendment No. 1 to the Quarterly Report on Form 10-Q/A to "we," "us," the "Company" or "our company" are to Spartan Acquisition Corp. III, a Delaware corporation, unless the context otherwise indicates.

Restatement of Notes to Unaudited Condensed Financial Statements

This Amendment No. 1 to the Quarterly Report on Form 10-Q/A (this "Form 10-Q/A") amends the Quarterly Report on Form 10-Q of Spartan Acquisition Corp. III (the "Company") as of and for the period ended September 30, 2021, as filed with the U.S. Securities and Exchange Commission ("SEC") on November 10, 2021 (the "Q3 Form 10-Q").

On November 10, 2021, the Company filed its Q3 Form 10-Q for the quarterly period ending September 30, 2021, which is included in Note 2, Basis of Presentation and Summary of Significant Accounting Policies ("Note 2") to its condensed financial statements that describes a revision to the Company's classification of its Class A common stock subject to redemption issued as part of the units sold in the Company's initial public offering ("IPO") on February 11, 2021. As described in Note 2, upon its IPO, the Company classified a portion of the Class A common stock as permanent equity to maintain net tangible assets greater than $5,000,000 on the basis that the Company will consummate its initial business combination only if the Company has net tangible assets of at least $5,000,001. The Company's management re-evaluated the conclusion and determined that the Class A common stock subject to redemption included certain provisions that require classification of the Class A common stock as temporary equity regardless of the minimum net tangible assets required to complete the Company's initial business combination. As a result, management corrected the error by restating all Class A common stock subject to redemption as temporary equity. This resulted in an adjustment to the initial carrying value of the Class A common stock subject to possible redemption with the offset recorded to additional paid-in capital (to the extent available), accumulated deficit and Class A common stock.

In connection with the change in presentation for the Class A common stock subject to possible redemption, the Company restated its earnings per share calculation to allocate income and losses shared pro rata between the two classes of shares. This presentation differs from the previously presented method of earnings per share, which was similar to the two-class method.

The Company determined the changes were not qualitatively material to the Company's previously issued financial statements and did not restate its financial statements in the Q3 Form 10-Q. Upon re-evaluation of the position taken, the Company revised its previously issued financial statements in Note 2 to its Q3 Form 10-Q. Although the qualitative factors that management assessed tended to support a conclusion that the misstatements were not material, these factors were not strong enough to overcome the significant quantitative errors in the financial statements. The qualitative and quantitative factors support a conclusion that the misstatements are material on a quantitative basis. Management concluded that the misstatement was of such magnitude that it is probable that the judgment of a reasonable person relying upon the financial statements would have been influenced by the inclusion or correction of the foregoing items. As such, upon further consideration of the change, the Company determined the change in classification of the Class A common stock and change to its presentation of earnings per share is quantitatively material and that it should restate its previously issued financial statements.

Therefore, on November 23, 2021, the Company's management and the audit committee of the Company's board of directors (the "Audit Committee") concluded that the Company's previously issued (i) audited balance sheet as of February 11, 2021 (the "Post IPO Balance Sheet"), as previously revised in the Company's Form 10-Q for the quarterly period ended March 31, 2021, filed with the SEC on June 3, 2021, (ii) unaudited interim financial statements included in the Company's Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2021, filed with the SEC on June 3, 2021 and (iii) unaudited interim financial statements included in the Company's Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2021, filed with the SEC on August 3, 2021 (collectively, the "Affected Periods"), should be restated to report all public shares as temporary equity and should no longer be relied upon. As such, the Company will restate its financial statements for the Affected Periods in this Form 10-Q/A.

The changes will have no impact on the Company's cash position and cash held in the trust account established in connection with the IPO.

i

Internal Control Over Financial Reporting

After re-evaluation, the Company's management has concluded that in light of the errors described above, a material weakness existed in the Company's internal control over financial reporting during the Affected Periods and that the Company's disclosure controls and procedures were not effective. The Company's remediation plan with respect to such material weakness is described in more detail in Item 4.

Amended Reports

This Form 10-Q/A does not reflect events occurring after the Q3 Form 10-Q's original filing date of November 10, 2021, and does not modify or update disclosures in the Q3 Form 10-Q's original filing that may have been affected by subsequent events, except for the effects of the restatement described in Note 2 of Notes to Unaudited Condensed Financial Statements included in Part I, Item 1. Financial Statements. Other disclosures not affected by the restatement are unchanged and reflect the disclosures made at the time of original filing.

This Form 10-Q/A reflects amendments to the following items:

Part I, Item 1 - Financial Statements

Part I, Item 4 - Controls and Procedures

Part II, Item 6 - Exhibits

The Company's Chief Executive Officer and Chief Financial Officer are providing currently dated certifications in connection with this Form 10-Q/A. See Exhibits 31.1 and 32.1.

ii

Table of Contents

Page No.

PART I - FINANCIAL INFORMATION

Item 1.

Condensed Financial Statements

4

Condensed Balance Sheets as of September 30, 2021 (unaudited) and December 31, 2020

4

Unaudited Condensed Statements of Operations for the Three and Nine Months Ended September 30, 2021

5

Unaudited Condensed Statements of Changes in Stockholders' Equity (Deficit) for the Three and Nine Months Ended September 30, 2021

6

Unaudited Condensed Statement of Cash Flows for the Nine Months Ended September 30, 2021

7

Notes to Unaudited Condensed Financial Statements

8

Item 2.

Management's Discussion and Analysis of Financial Condition and Results of Operations

27

Item 3.

Quantitative and Qualitative Disclosures About Market Risk

32

Item 4.

Controls and Procedures

32

PART II - OTHER INFORMATION

Item 1.

Legal Proceedings

34

Item 1A.

Risk Factors

34

Item 2.

Unregistered Sales of Equity Securities and Use of Proceeds

34

Item 3.

Defaults Upon Senior Securities

35

Item 4.

Mine Safety Disclosures

35

Item 5.

Other Information

35

Item 6.

Exhibits.

36

SIGNATURES

37

iii

PART I - FINANCIAL INFORMATION

Item 1.

Condensed Financial Statements

SPARTAN ACQUISITION CORP. III

CONDENSED BALANCE SHEETS

September 30, 2021

December 31, 2020

Assets:

(Unaudited)

Current assets:

Cash

$

497,039

$

-

Prepaid expenses

1,079,723

-

Total current assets

1,576,762

-

Investments held in Trust Account

552,043,041

-

Deferred offering costs

-

93,774

Total Assets

$

553,619,803

$

93,774

Liabilities, Class A Common Stock Subject to Possible Redemption and Stockholders' Equity (Deficit):

Current liabilities:

Accrued expenses

$

6,826,806

$

70,374

Accounts payable

4,047

-

Franchise tax payable

147,897

450

Total current liabilities

6,978,750

70,824

Derivative warrant liabilities

27,909,600

-

Deferred underwriting commissions

19,320,000

-

Total liabilities

54,208,350

70,824

Commitments and Contingencies

Class A common stock subject to possible redemption; $0.0001 par value; 55,200,000 and -0- shares at $10.00 per share as of September 30, 2021 and December 31, 2020, respectively

552,000,000

-

Stockholders' Equity (Deficit):

Preferred stock, $0.0001 par value; 1,000,000 shares authorized; none issued and outstanding

-

-

Class A common stock, $0.0001 par value; 250,000,000 shares authorized; none issued and outstanding, excluding 55,200,000 and no shares subject to redemption as of Septemer 30, 2021 and December 31, 2020

-

-

Class B common stock, $0.0001 par value; 20,000,000 shares authorized; 13,800,000 shares issued and outstanding

1,380

1,380

Additional paid-in capital

-

23,620

Accumulated deficit

(52,589,927

)

(2,050

)

Total stockholders' equity (deficit)

(52,588,547

)

22,950

Total Liabilities, Class A Common Stock Subject to Possible Redemption and Stockholders' Equity (Deficit)

$

553,619,803

$

93,774

The accompanying notes are an integral part of these condensed financial statements.

4

SPARTAN ACQUISITION CORP. III

UNAUDITED CONDENSED STATEMENTS OF OPERATIONS

For The Three Months Ended September 30, 2021

For The Nine Months Ended September 30, 2021

General and administrative expenses

$

2,393,989

$

7,467,435

General and administrative expenses - related party

30,000

76,429

Franchise tax expenses

49,863

147,447

Loss from operations

(2,473,852

)

(7,691,311

)

Other income (expense)

Offering costs - derivative warrant liabilities

-

(1,068,440

)

Change in fair value of derivative warrant liabilities

2,646,000

4,760,400

Interest earned on bank account

45

232

Interest income from investments held in Trust account

7,104

43,041

Net income (loss)

$

179,297

$

(3,956,078

)

Weighted average shares outstanding of Class A common stock

55,200,000

46,909,890

Basic and diluted net income (loss) per share, Class A common stock

$

0.00

$

(0.07

)

Basic and diluted weighted average shares outstanding of Class B common stock

13,800,000

13,529,670

Basic and diluted net income (loss) per share, Class B common stock

$

0.00

$

(0.07

)

The accompanying notes are an integral part of these condensed financial statements.

5

SPARTAN ACQUISITION CORP. III

UNAUDITED CONDENSED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT)

FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2021

Common Stock

Total

Class A

Class B

Additional Paid-In

Accumulated

Stockholders'

Shares

Amount

Shares

Amount

Capital

Deficit

Equity (Deficit)

Balance - December 31, 2020

-

$

-

13,800,000

$

1,380

$

23,620

$

(2,050

)

$

22,950

Accretion of Class A common stock to redemption amount

-

-

-

-

(23,620

)

(48,631,799

)

(48,655,419

)

Net loss

-

-

-

-

-

(4,430,495

)

(4,430,495

)

Balance - March 31, 2021 (unaudited), as restated - see Note 2

-

-

13,800,000

1,380

-

(53,064,344

)

(53,062,964

)

Net income

-

-

-

-

-

295,120

295,120

Balance - June 30, 2021 (unaudited), as restated - see Note 2

-

-

13,800,000

1,380

$

-

(52,769,224

)

(52,767,844

)

Net income

-

-

-

-

-

179,297

179,297

Balance - September 30, 2021 (unaudited)

-

$

-

13,800,000

$

1,380

$

-

$

(52,589,927

)

$

(52,588,547

)

The accompanying notes are an integral part of these condensed financial statements.

6

SPARTAN ACQUISITION CORP. III

UNAUDITED CONDENSED STATEMENT OF CASH FLOWS

FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2021

Cash Flows from Operating Activities:

Net loss

$

(3,956,078

)

Adjustments to reconcile net loss to net cash used in operating activities:

General and administrative expenses paid by related party under note payable

26,801

Change in fair value of derivative warrant liabilities

(4,760,400

)

Offering costs - derivative warrant liabilities

1,068,440

Interest income from investments held in Trust Account

(43,041

)

Changes in operating assets and liabilities:

Prepaid expenses

(1,079,723

)

Accounts payable

4,047

Accrued expenses

6,367,705

Franchise tax payable

147,447

Net cash used in operating activities

(2,224,802

)

Cash Flows from Investing Activities:

Cash deposited in Trust Account

(552,000,000

)

Net cash used in investing activities

(552,000,000

)

Cash Flows from Financing Activities:

Repayment of note payable to related party

(181,624

)

Proceeds received from initial public offering, gross

552,000,000

Proceeds received from private placement

14,040,000

Offering costs paid

(11,136,535

)

Net cash provided in financing activities

554,721,841

Net change in cash

497,039

Cash - beginning of the period

-

Cash - end of the period

$

497,039

Supplemental disclosure of noncash financing activities:

Offering costs included in accrued expenses

$

388,727

Offering costs funded with note payable

$

154,823

Deferred underwriting commissions in connection with the initial public offering

$

19,320,000

The accompanying notes are an integral part of these condensed financial statements.

7

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Note 1 - Description of Organization and Business Operations

Spartan Acquisition Corp. III (the "Company") was incorporated in Delaware on December 23, 2020. The Company was formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses (the "Initial Business Combination"). The Company is an "emerging growth company," as defined in Section 2(a) of the Securities Act of 1933, as amended (the "Securities Act"), as modified by the Jumpstart Our Business Startups Act of 2012 (the "JOBS Act").

As of September 30, 2021, the Company had not commenced any operations. All activity for the period from December 23, 2020 (inception) through September 30, 2021 relates to the Company's formation and the initial public offering (the "Initial Public Offering") described below, and, subsequent to the Initial Public Offering, identifying a target company for an Initial Business Combination. The Company will not generate any operating revenues until after completion of its Initial Business Combination, at the earliest. The Company generates non-operating income in the form of interest income on investments held in trust from the net proceeds of its Initial Public Offering and Private Placement (described below).

The Company's sponsor is Spartan Acquisition Sponsor III LLC, a Delaware limited liability company (the "Sponsor"). The registration statement for the Company's Initial Public Offering was declared effective on February 8, 2021. On February 11, 2021, the Company consummated its Initial Public Offering of 55,200,000 units (the "Units" and, with respect to the shares of Class A common stock, par value $0.0001 per share ("Class A common stock"), included in the Units being offered, the "Public Shares"), including 7,200,000 additional Units to cover over-allotments (the "Over-Allotment Units"), at $10.00 per Unit, generating gross proceeds of $552.0 million, and incurring offering costs of approximately $31.1 million, of which approximately $19.3 million was for deferred underwriting commissions (Note 5).

Simultaneously with the closing of the Initial Public Offering, the Company consummated the private placement ("Private Placement") of 9,360,000 warrants (each, a "Private Placement Warrant" and collectively, the "Private Placement Warrants") at a price of $1.50 per Private Placement Warrant to the Sponsor, generating proceeds of approximately $14.0 million (Note 4).

Upon the closing of the Initial Public Offering and the Private Placement, $552.0 million ($10.00 per Unit) of the net proceeds of the Initial Public Offering and certain of the proceeds of the Private Placement was placed in a trust account (the "Trust Account"). The proceeds held in the Trust Account will be invested only in U.S. government securities with a maturity of 185 days or less or in money market funds that meet certain conditions under Rule 2a-7 under the Investment Company Act of 1940, as amended (the "Investment Company Act"), and that invest only in direct U.S. government treasury obligations, as determined by the Company. Funds will remain in the Trust Account until the earlier of (i) the consummation of the Initial Business Combination or (ii) the distribution of the Trust Account proceeds as described below. The remaining proceeds outside the Trust Account may be used to pay for business, legal and accounting due diligence on prospective acquisitions and continuing general and administrative expenses.

The Company's amended and restated certificate of incorporation provides that, other than the withdrawal of interest to pay franchise and income taxes (less up to $100,000 to pay dissolution expenses), none of the funds held in the Trust Account will be released until the earliest of: (i) the completion of the Initial Business Combination; (ii) the redemption of any Public Shares sold in the Initial Public Offering that have been properly tendered in connection with a stockholder vote to amend the Company's amended and restated certificate of incorporation (A) to modify the substance or timing of its obligation to redeem 100% of such Public Shares if it has not consummated an Initial Business Combination within 24 months from the closing of the Initial Public Offering, or February 11, 2023 (or 27 months from the closing of the Initial Public Offering, or May 11, 2023, if the Company has executed a letter of intent, agreement in principle or definitive agreement for an Initial Business Combination within 24 months from the closing of the Initial Public Offering) (the "Combination Period"); or (iii) the redemption of 100% of the Public Shares if the Company is unable to complete an Initial Business Combination within 24 months from the closing of the Initial

8

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Public Offering (or 27 monthsfrom the closing of the Initial Public Offering if the Company has executed a letter of intent, agreement in principle or definitive agreement for an Initial Business Combination within 24 months from the closing of the Initial Public Offering). The proceeds deposited in the Trust Account could become subject to the claims of the Company's creditors, if any, which could have priority over the claims of the Company's holders (the "Public Stockholders") of the Public Shares.

The Company's management has broad discretion with respect to the specific application of the net proceeds of the Initial Public Offering, although substantially all of the net proceeds of the Initial Public Offering are intended to be generally applied toward consummating an Initial Business Combination. The Initial Business Combination must occur with one or more target businesses that together have a fair market value of at least 80% of the assets held in the Trust Account (excluding the deferred underwriting discounts and commissions and taxes payable on interest earned on the Trust Account) at the time of the agreement to enter into the Initial Business Combination. Furthermore, there is no assurance that the Company will be able to successfully effect an Initial Business Combination.

The Company, after signing a definitive agreement for an Initial Business Combination, will either (i) seek stockholder approval of the Initial Business Combination at a meeting called for such purpose in connection with which stockholders may seek to redeem their Public Shares, regardless of whether they vote for or against the Initial Business Combination, for cash equal to their pro rata share of the aggregate amount then on deposit in the Trust Account as of two business days prior to the consummation of the Initial Business Combination, including interest not previously released to the Company to pay its franchise and income taxes, or (ii) provide stockholders with the opportunity to sell their Public Shares to the Company by means of a tender offer (and thereby avoid the need for a stockholder vote) for an amount in cash equal to their pro rata share of the aggregate amount on deposit in the Trust Account as of two business days prior to the consummation of the Initial Business Combination, including interest not previously released to the Company to pay its franchise and income taxes. The decision as to whether the Company will seek stockholder approval of the Initial Business Combination or will allow stockholders to sell their Public Shares in a tender offer will be made by the Company, solely in its discretion, and will be based on a variety of factors such as the timing of the transaction and whether the terms of the transaction would otherwise require the Company to seek stockholder approval, unless a vote is required by law or under the New York Stock Exchange ("NYSE") rules. If the Company seeks stockholder approval, it will complete its Initial Business Combination only if a majority of the outstanding shares of common stock voted are voted in favor of the Initial Business Combination. However, in no event will the Company redeem its Public Shares in an amount that would cause its net tangible assets to be less than $5,000,001. In such case, the Company would not proceed with the redemption of its Public Shares and the related Initial Business Combination, and instead may search for an alternate Initial Business Combination.

If the Company holds a stockholder vote or there is a tender offer for shares in connection with an Initial Business Combination, a Public Stockholder will have the right to redeem his, her or its Public Shares for an amount in cash equal to his, her or its pro rata share of the aggregate amount on deposit in the Trust Account as of two business days prior to the consummation of the Initial Business Combination, including interest not previously released to the Company to pay its franchise and income taxes. As a result, such Public Shares are recorded at redemption amount and classified as temporary equity upon the completion of the Initial Public Offering, in accordance with the Financial Accounting Standards Board ("FASB") Accounting Standards Codification ("ASC") 480, "Distinguishing Liabilities from Equity" ("ASC 480").

Pursuant to the Company's amended and restated certificate of incorporation, if the Company is unable to complete the Initial Business Combination within the Combination Period, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but no more than ten business days thereafter subject to lawfully available funds therefor, redeem the Public Shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account including interest earned on the funds held in the Trust Account and not previously released to the Company to pay the Company's franchise and income taxes (less up to $100,000 of such net interest to pay dissolution expenses), divided by the number of then outstanding Public Shares, which redemption will completely extinguish Public Stockholders' rights as stockholders (including the right to receive further liquidating distributions, if any), subject to applicable law, and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the Company's remaining stockholders and the Company's board of directors, dissolve and liquidate, subject in each case to the Company's obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. The Sponsor and the Company's officers and directors have entered into a letter agreement, in connection with the Initial Public Offering, with the Company,

9

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

pursuant to which they agreed to waive their rights to liquidating distributions from the Trust Account with respect to any Founder Shares (as defined below) held by them if the Company fails to complete the Initial BusinessCombination.

Proposed Initial Business Combination

On July 28, 2021, the Company entered into a Business Combination Agreement and Plan of Reorganization (the "Business Combination Agreement") with Athena Pubco B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) ("NewCo"), Athena Merger Sub, Inc., a Delaware corporation ("Merger Sub"), Madeleine Charging B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) ("Madeleine Charging"), Allego Holding B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) ("Allego"), and, solely with respect to the sections specified therein, E8 Partenaires, a French societe par actions simplifee("E8 Investor"). Subject to the satisfaction or waiver of the conditions to closing (the "Closing") of the transactions contemplated by the Business Combination Agreement (the "Transactions"), the Transactions will effect an Initial Business Combination between the Company and Allego.

Following the Closing, MergerSub, a wholly owned subsidiary of NewCo, will merge with and into the Company, with the Company surviving the merger as a wholly owned subsidiary of NewCo (the "Surviving Corporation," and such merger, the "Spartan Merger"), through a reverse triangular merger. Immediately following the Spartan Merger, NewCo will be converted into a Dutch public limited liability company and its articles of association will be amended.

The boards of directors of each of the Company and Allego have unanimously approved the Transactions. The Transactions will require the approval of the stockholders of the Company, the effectiveness of a registration statement on Form F-4 to be filed with theU.S. Securities and Exchange Commission the ("SEC") in connection with the Transaction (the "Business Combination Registration Statement"), satisfaction of the conditions stated in the definitive agreement and other customary closing conditions. The Transaction is expected to close in the fourth quarter of 2021.

Amendment to Letter Agreement

In connection with the execution of the Business Combination Agreement, on July 28, 2021, the Company, Sponsor and certain of Sponsor's executive officers and directors (together with Sponsor, collectively, the "Insiders") entered into an amendment (the "Letter Agreement Amendment") to that certain Letter Agreement (the "Existing Letter Agreement") dated as of February 8, 2021, by and among the Company, Sponsor and the Insiders party thereto, pursuant to which each Insider has agreed, effective as of the Closing and subject to certain exceptions, to modify the lock-up restrictions set forth in the Existing Letter Agreement such that such Insider will agree not to Transfer (as defined in the Letter Agreement Amendment) any NewCo ordinary shares issued to such Insider in respect of any shares of the Company's shares of Class A common stock and Class B common stock (the "Company's Common Stock") that may be received by such Insider at the Closing upon conversion of the Company's Founders Shares pursuant to the Business Combination Agreement until (i) six months after the Closing or (ii) earlier if (a) the last reported sale price of NewCo ordinary shares equals or exceeds $12.00 per share for any 20 trading days within a 30-day trading period commencing at least 120 days after the date upon which the Closing occurs (the "Closing Date"), (b) NewCo consummates a subsequent liquidation, merger, stock exchange or other similar transaction which results in all NewCo's stockholders having the right to exchange their shares of NewCo ordinary shares for cash, securities, or other property or (c) the board of directors of NewCo determines that the earlier termination of such restrictions is appropriate. Under the Letter Agreement Amendment, each Insider also agreed, effective as of the Closing and subject to certain exceptions, to modified transfer restrictions prohibiting the transfer of any Assumed Warrants, and any NewCo ordinary shares underlying any Assumed Warrants, until 30 days after the Closing Date.

Registration Rights Agreement

In connection with the Closing, NewCo, Sponsor, Madeleine Charging, E8 Investor and certain other holders of NewCo Ordinary Shares (collectively, the "Reg Rights Holders") will enter into a Registration Rights Agreement attached as an exhibit to the Business Combination Agreement (the "Registration Rights Agreement"). Pursuant to the Registration Rights Agreement, among other things, NewCo will agree that, within fifteen (15) business days following the Closing, NewCo will file a shelf registration statement to register the resale of certain securities held by the Reg Rights Holders (the "Registerable Securities"). In certain circumstances, Reg Rights Holders that hold Registerable Securities having an aggregate value of at least $50 million can demand up to three (3) underwritten offerings. Each of the Reg Rights Holders will be entitled to customary piggyback registration rights, subject to certain exceptions, in such case of demand offerings by Madeleine Charging. In addition, under certain circumstances, Madeleine Charging may demand up to three (3) underwritten offerings. Additionally, in connection with the Closing, Spartan, Sponsor and certain other security holders named therein will terminate that certain Registration Rights Agreement, dated

10

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

February 8, 2021, by and among Spartan, Sponsor and such other security holders.

Furthermore, pursuant to the Registration Rights Agreement, each of Madeleine Charging and E8 Investor will agree to the following lock-up restrictions:

(i)

Madeleine Charging will agree, subject to certain exceptions or with the consent of the board of directors of NewCo, not to Transfer (as defined in the Registration Rights Agreement) securities received by it pursuant to the Business Combination Agreement until the date that is 180 days after the Closing or earlier if, subsequent to the Closing, (A) the last sale price of the NewCo Ordinary Shares equals or exceeds $12.00 per share for any 20 trading days within any 30-trading day period commencing at least 120 days after the Closing or (B) NewCo consummates a liquidation, merger, stock exchange or other similar transaction which results in all of NewCo's stockholders having the right to exchange their NewCo Ordinary Shares for cash, securities or other property.

(ii)

E8 Investor will agree, subject to certain exceptions, not to Transfer (as defined in the Registration Rights Agreement) securities received by it in the E8 Part B Share Issuance until the date that is 18 months after the Closing or earlier if, subsequent to the Closing, NewCo consummates a liquidation, merger, stock exchange or other similar transaction which results in all of NewCo's stockholders having the right to exchange their NewCo Ordinary Shares for cash, securities or other property.

Founders Stock Agreement

Concurrently with the execution and delivery of the Business Combination Agreement, Sponsor, Jan C. Wilson and John M. Stice (collectively, the "Founders") have entered into a Founders Stock Agreement with Spartan, pursuant to which, among other things, (i) in order to effect the conversion at Closing of the Founders' shares of Spartan Founders Stock into shares of the Company's Class A Common Stock on a one-for-one basis in accordance with the Business Combination Agreement, each Founder has agreed to waive certain anti-dilution rights it may have with respect to its Spartan Founders Stock under the Spartan Charter, subject to and effectively immediately prior to the Closing, and (ii) each Founder has further agreed (a) to use its reasonable best efforts to consummate the Transactions (including by agreeing to vote all shares of the Company's Common Stock in favor of the Initial Business Combination and to not redeem any shares of the Company's Common Stock) and (b) not to transfer any shares of the Company's Common Stock or Spartan Warrants until the earlier of the Closing and any termination of the Business Combination Agreement in accordance with its terms.

Refer to the Company's Current Report on Form 8-K, filed with the SEC on July 28, 2021, for more information.

Risks and Uncertainties

Management continues to evaluate the impact of the COVID-19 pandemic on the industry and has concluded that while it is reasonably possible that the virus could have a negative effect on the Company's financial position, results of its operations and/or search for a target company, the specific impact is not readily determinable as of the date of these unaudited condensed financial statements. The unaudited condensed financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Liquidity and Going Concern

As of September 30, 2021, the Company had approximately $497,000in cash and working capital deficit of approximately $5.3 million.

The Company's liquidity needs prior to the Initial Public Offering were satisfied through the payment of $25,000 from the Sponsor to cover for certain offering costs on the Company's behalf in exchange for issuance of Founder Shares (as defined in Note 4), and loan proceeds from the Sponsor of approximately $182,000 under the Note (as defined in

11

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Note 4). The Company repaid the Note in full on February 17, 2021. Subsequentfromthe consummation of the Initial Public Offering, the Company's liquidity needs will be satisfied with the proceeds from the consummation of the Private Placement not held in the Trust Account. In addition, in order to finance transaction costs in connection with a Business Combination, the Sponsor may, but is not obligated to, provide the Company Working Capital Loans (see Note 4). To date, there were noamounts outstanding under any Working Capital Loans.

The Company will need to raise additional capital through loans or additional investments from its Sponsor, an affiliate of the Sponsor, or its officers or directors. The Company's officers, directors and Sponsor, or their affiliates, may, but are not obligated to, loan the Company funds, from time to time or at any time, in whatever amount they deem reasonable in their sole discretion, to meet the Company's working capital needs. Accordingly, the Company may not be able to obtain additional financing. If the Company is unable to raise additional capital, it may be required to take additional measures to conserve liquidity, which could include, but not necessarily be limited to, curtailing operations, suspending the pursuit of a potential transaction, and reducing overhead expenses. The Company cannot provide any assurance that new financing will be available to it on commercially acceptable terms, if at all. In connection with the Company's assessment of going concern considerations in accordance with FASB Accounting Standards Update ("ASU") 2014-15, "Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern," management has determined these conditions raise substantial doubt about the Company's ability to continue as a going concern through the Combination Period, which is the date the Company is required to cease all operations except for the purpose of winding up if it has not completed a business combination. These financial statements do not include any adjustments relating to the recovery of the recorded assets or the classification of the liabilities that might be necessary should the Company be unable to continue as a going concern.

Note 2 - Basis of Presentation and Summary of Significant Accounting Policies (As Restated)

Basis of Presentation

The accompanying unaudited condensed financial statements of the Company have been prepared in accordance with United States generally accepted accounting principles ("GAAP") for interim financial information and Article 8 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP. In the opinion of management, all adjustments (consisting of normal accruals) considered for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2021 are not necessarily indicative of the results that may be expected for the year ending December 31, 2021 or any future period.

The accompanying unaudited condensed financial statements should be read in conjunction with the audited financial statements and notes thereto included in the Annual Report on Form 10-K, for the period ended December 31, 2020, filed by the Company with the SEC on March 30, 2021.

12

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Restatement of Previously Reported Financial Statements

In preparation of the Company's unaudited condensed financial statements for the quarterly period ended September 30, 2021, the Company concluded it should restate its previously issued financial statements to classify all Class A common stock subject to possible redemption in temporary equity. In accordance with the SEC and its staff's guidance on redeemable equity instruments in ASC 480-10-S99, redemption provisions not solely within the control of the Company require common stock subject to redemption to be classified outside of permanent equity. The Company had previously classified a portion of its Class A common stock in permanent equity. Although the Company did not specify a maximum redemption threshold, its amended and restated certificate of incorporation currently provides that the Company will not redeem its Public Shares in an amount that would cause its net tangible assets to be less than $5,000,001. Previously, the Company did not consider redeemable shares classified as temporary equity as part of net tangible assets. Effective with these condensed financial statements, the Company revised this interpretation to include temporary equity in net tangible assets. In connection with the change in presentation for the Class A common stock subject to possible redemption, the Company has restated its earnings per share calculation to allocate income and losses shared pro rata between the two classes of shares. This presentation contemplates a Business Combination as the most likely outcome, in which case, both classes of shares participate pro rata in the income and losses of the Company.

In accordance with SEC Staff Accounting Bulletin No. 99, "Materiality," and SEC Staff Accounting Bulletin No. 108, "Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements," the Company evaluated the corrections and has determined that the related impact was material to the previously filed financial statements that contained the error, reported in the Company's Current Report on Form 8-K filed with the SEC on February 17, 2021 (the "Post-IPO Balance Sheet") and Quarterly Reports on Form 10-Qs for the quarterly periods ended March 31, 2021 and June 30, 2021 (the "Affected Quarterly Periods"). Therefore, the Company, in consultation with its Audit Committee, concluded that the Post-IPO Balance Sheet and Affected Quarterly Periods should be restated to present all Class A common stock subject to possible redemption as temporary equity and to recognize accretion from the initial book value to redemption value at the time of its Initial Public Offering, as well as to reflect the changes in its earnings per share. As such, the Company is reporting these restatements to those Affected Quarterly Periods in this Form 10-Q/A.

The impact of the restatement to the Post-IPO Balance Sheet is presented below.

As of February 11, 2021:

As Previously Reported

Adjustment

As Restated

Total assets

$

555,026,800

$

-

$

555,026,800

Total liabilities

52,750,225

-

52,750,225

Class A common stock subject to possible redemption

497,276,570

54,723,430

552,000,000

Preferred stock, par value $0.0001

-

-

-

Class A common stock, par value $0.0001

(105

)

105

-

Class B common stock, par value $0.0001

1,380

-

1,380

Additional paid-in capital

6,091,736

(6,091,736

)

-

Accumulated deficit

(1,093,006

)

(48,630,419

)

(49,723,425

)

Total stockholders' equity (deficit)

5,000,005

(54,723,430

)

(49,723,425

)

Total liabilities, Class A common stock subject to possible redemption and Total stockholders' equity (deficit)

$

555,026,800

$

-

$

555,026,800

The table below presents the effect of the financial statement adjustments related to the restatement discussed above of the Company's previously reported balance sheet as of March 31, 2021:

13

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

As of March 31, 2021 (unaudited)

As Previously Reported

Adjustment

As Restated

Total assets

$

554,614,387

$

-

$

554,614,387

Total liabilities

55,677,351

-

55,677,351

Class A common stock subject to possible redemption

493,937,030

58,062,970

552,000,000

Preferred stock, par value $0.0001

-

Class A common stock, par value $0.0001

581

(581

)

-

Class B common stock, par value $0.0001

1,380

-

1,380

Additional paid-in capital

9,430,590

(9,430,590

)

-

Accumulated deficit

(4,432,545

)

(48,631,799

)

(53,064,344

)

Total stockholders' equity (deficit)

5,000,006

(58,062,970

)

(53,062,964

)

Total liabilities, Class A common stock subject to possible redemption and Total stockholders' equity (deficit)

$

554,614,387

$

-

$

554,614,387

The Company's statement of stockholders' equity has been restated to reflect the changes to the impacted stockholders' equity accounts described above.

The table below presents the effect of the financial statement adjustments related to the restatement discussed above of the Company's previously reported statement of cash flows for the three months ended March 31, 2021:

For the Three Months Ended March 31, 2021 (unaudited)

As Previously Reported

Adjustment

As Restated

Supplemental Disclosure of Noncash Financing Activities:

Initial value of Class A common stock subject to possible redemption

$

497,276,570

$

(497,276,570

)

$ -

Change in value of Class A common stock subject to possible redemption

$

(3,339,540

)

$

3,339,540

$ -

The table below presents the effect of the financial statement adjustments related to the restatement discussed above of the Company's previously reported balance sheet as of June 30, 2021:

As of June 30, 2021 (unaudited):

As Previously Reported

Adjustment

As Restated

Total assets

$

554,006,496

$

-

$

554,006,496

Total liabilities

54,774,340

-

54,774,340

Class A common stock subject to possible redemption

494,232,150

57,767,850

552,000,000

Preferred stock, par value $0.0001

-

-

-

Class A common stock, par value $0.0001

578

(578

)

-

Class B common stock, par value $0.0001

1,380

-

1,380

Additional paid-in capital

9,135,473

(9,135,473

)

-

Accumulated deficit

(4,137,425

)

(48,631,799

)

(52,769,224

)

Total stockholders' equity (deficit)

5,000,006

(57,767,850

)

(52,767,844

)

Total liabilities, Class A common stock subject to possible redemption and Total stockholders' equity (deficit)

$

554,006,496

$

-

$

554,006,496

14

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

The Company's statement of stockholders' equity has been restated to reflect the changes to the impacted stockholders' equity accounts described above.

The table below presents the effect of the financial statement adjustments related to the restatement discussed above of the Company's previously reported statement of cash flows for the six months ended June 30, 2021:

For the Six Months Ended June 30, 2021 (unaudited)

As Previously Reported

Adjustment

As Restated

Supplemental Disclosure of Noncash Financing Activities:

Initial value of Class A common stock subject to possible redemption

$

497,276,570

$

(497,276,570

)

$ -

Change in value of Class A common stock subject to possible redemption

$

(3,044,420

)

$

3,044,420

$ -

The impact to the reported amounts of weighted average shares outstanding and basic and diluted earnings per share is presented below for the Affected Quarterly Periods:

Earnings Per Share for Class A common stock

As Previously

Reported

Adjustment

As Restated

For the three months ended March 31, 2021 (unaudited):

Net loss

$

(4,430,495

)

$

-

$

(4,430,495

)

Weighted average shares outstanding

55,200,000

(25,146,667

)

30,053,333

Basic and diluted loss per share

$

-

$

(0.10

)

$

(0.10

)

For the three months ended June 30, 2021 (unaudited)

Net income

$

295,120

$

-

$

295,120

Weighted average shares outstanding

55,200,000

-

55,200,000

Basic and diluted earnings per share

$

-

$

-

$

0.00

For the six months ended June 30, 2021 (unaudited)

Net loss

$

(4,135,375

)

$

-

$

(4,135,375

)

Weighted average shares outstanding

55,200,000

(12,503,867

)

42,696,133

Basic and diluted loss per share

$

-

$

(0.07

)

$

(0.07

)

15

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Earnings Per Share for Class B common stock

As Previously

Reported

Adjustment

As Restated

For the three months ended March 31, 2021 (unaudited)

Net loss

$

(4,430,495

)

$

-

$

(4,430,495

)

Weighted average shares outstanding

12,980,000

-

12,980,000

Basic and diluted loss per share

$

(0.34

)

$

(0.24

)

$

(0.10

)

For the three months ended June 30, 2021 (unaudited)

Net income

$

295,120

$

-

$

295,120

Weighted average shares outstanding

13,800,000

-

13,800,000

Basic and diluted earnings per share

$

0.02

$

(0.02

)

$

0.00

For the six months ended June 30, 2021 (unaudited)

Net loss

$

(4,135,375

)

$

-

$

(4,135,375

)

Weighted average shares outstanding

13,392,265

-

13,392,265

Basic and diluted loss per share

$

(0.31

)

$

0.24

$

(0.07

)

Emerging Growth Company

The Company is an "emerging growth company," as defined in Section 2(a) of the Securities Act, as modified by the JOBS Act, and it may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies including, but not limited to, not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002 (the "Sarbanes-Oxley Act"), reduced disclosure obligations regarding executive compensation in its periodic reports and proxy statements, and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and stockholder approval of any golden parachute payments not previously approved.

Further, Section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Securities Exchange Act of 1934, as amended) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that an emerging growth company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such an election to opt out is irrevocable. The Company has elected not to opt out of such extended transition period, which means that when a standard is issued or revised and it has different application dates for public or private companies, the Company, as an emerging growth company, can adopt the new or revised standard at the time private companies adopt the new or revised standard.

This may make comparison of the Company's unaudited condensed financial statements with another public company that is neither an emerging growth company nor an emerging growth company that has opted out of using the extended transition period difficult or impossible because of the potential differences in accounting standards used.

Use of Estimates

The preparation of unaudited condensed financial statements in conformity with GAAP requires the Company's management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited condensed financial statements and the reported amounts of revenues and expenses during the reporting period. Making estimates requires management to exercise significant judgment. It is at least reasonably possible that the estimate of the effect of a condition, situation or set of circumstances that existed at the date of the unaudited condensed financial statements, which management considered in formulating its estimate, could change in the near term due to one or more future confirming events. Accordingly, the actual results could differ significantly from those estimates.

16

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

One of the more significant accounting estimates included in these condensed financial statements is the determination of the fair value of the warrant liabilities. Such estimates may be subject to change as more current information becomes available and accordingly the actual results could differ significantly from those estimates.

Cash and Cash Equivalents

The Company considers all short-term investments with an original maturity of three months or less when purchased to be cash equivalents. The Company had no cash equivalents as of September 30, 2021 and December 31, 2020.

Investments Held in Trust Account

The Company's portfolio of investments is comprised of U.S. government securities, within the meaning set forth in Section 2(a)(16) of the Investment Company Act, with a maturity of 185 days or less, or investments in money market funds that invest in U.S. government securities and generally have a readily determinable fair value, or a combination thereof. When the Company's investments held in the Trust Account are comprised of U.S. government securities, the investments are classified as trading securities. Trading securities and investments in money market funds are presented on the condensed balance sheets at fair value at the end of each reporting period. Gains and losses resulting from the change in fair value of these securities is included in income from investments held in Trust Account in the accompanying unaudited condensed statements of operations. The estimated fair values of investments held in the Trust Account are determined using available market information.

Concentration of Credit Risk

Financial instruments that potentially subject the Company to concentrations of credit risk consist of cash accounts in a financial institution, which, at times, may exceed the Federal Deposit Insurance Corporation coverage limit of $250,000 and investments held in Trust Account. As of September 30, 2021 and December 31, 2020, the Company has not experienced losses on these accounts and management believes the Company is not exposed to significant risks on such accounts.

Fair Value of Financial Instruments

The fair value of the Company's assets and liabilities, which qualify as financial instruments under the FASB ASC Topic 820, "Fair Value Measurements," approximates the carrying amounts represented in the condensed balance sheets.

Fair Value Measurements

Fair value is defined as the price that would be received for sale of an asset or paid for transfer of a liability, in an orderly transaction between market participants at the measurement date. GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value.

The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). These tiers consist of:

Level 1, defined as observable inputs such as quoted prices for identical instruments in active markets;

Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable such as quoted prices for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active; and

Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions, such as valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.

In some circumstances, the inputs used to measure fair value might be categorized within different levels of the fair value hierarchy. In those instances, the fair value measurement is categorized in its entirety in the fair value hierarchy based on the lowest level input that is significant to the fair value measurement.

17

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Offering Costs Associated with the Initial Public Offering

Offering costs consisted of legal, accounting, underwriting fees and other costs incurred through the Initial Public Offering that were directly related to the Initial Public Offering. Offering costs are allocated to the separable financial instruments issued in the Initial Public Offering based on a relative fair value basis, compared to total proceeds received. Offering costs associated with derivative warrant liabilities are expensed as incurred, presented as non-operating expenses in the statement of operations. Offering costs associated with the Class A common stock issued were charged against the carrying value of the shares of Class A common stock upon the completion of the Initial Public Offering. The Company classifies deferred underwriting commissions as non-current liabilities as their liquidation is not reasonably expected to require the use of current assets or require the creation of current liabilities..

Derivative Warrant Liabilities

The Company does not use derivative instruments to hedge exposures to cash flow, market, or foreign currency risks. The Company evaluates all of its financial instruments, including issued stock purchase warrants, to determine if such instruments are derivatives or contain features that qualify as embedded derivatives, pursuant to ASC 480 and FASB ASC Topic 815, "Derivatives and Hedging" ("ASC 815"). The classification of derivative instruments, including whether such instruments should be recorded as liabilities or as equity, is re-assessed at the end of each reporting period. Derivative warrant liabilities are classified as non-current liabilities as their liquidation is not reasonably expected to require the use of current assets or require the creation of current liabilities.

The Public Warrants and the Private Placement Warrants are recognized as derivative liabilities in accordance with ASC 815. Accordingly, the Company recognizes the warrant instruments as liabilities at fair value and adjust the instruments to fair value at each reporting period. The liabilities are subject to re-measurement at each balance sheet date until exercised. The initial fair value of the Public Warrants was estimated using a Black-Scholes option pricing model. The fair value of the Public Warrants as of September 30, 2021 is based on observable listed prices for such warrants. The fair value of the Private Placement Warrants as of September 30, 2021 is determined using Black-Scholes option pricing model. The determination of the fair value of the warrant liability may be subject to change as more current information becomes available and accordingly the actual results could differ significantly.

Class A Common Stock Subject to Possible Redemption

The Company accounts for its Class A common stock subject to possible redemption in accordance with the guidance in ASC 480. Class A common stock subject to mandatory redemption (if any) is classified as a liability instrument and is measured at fair value. Conditionally redeemable Class A common stock (including Class A common stock that features redemption rights that are either within the control of the holder or subject to redemption upon the occurrence of uncertain events not solely within the Company's control) is classified as temporary equity. At all other times, Class A common stock is classified as stockholders' equity. The Company's Class A common stock features certain redemption rights that are considered to be outside of the Company's control and subject to the occurrence of uncertain future events. Accordingly, 55,200,000 shares of Class A common stock subject to possible redemption are presented at redemption value as temporary equity, outside of the stockholders' equity section of the Company's unaudited condensed balance sheet. There were no shares of Class A common stock issued and outstanding as of December 31, 2020.

Immediately upon the closing of the Initial Public Offering, the Company recognized the accretion from initial book value to redemption amount value. The change in the carrying value of redeemable Class A common stock resulted in charges against additional paid-in capital and accumulated deficit.

Income Taxes

The Company follows the asset and liability method of accounting for income taxes under FASB ASC Topic 740, "Income Taxes" ("ASC 740"). Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between the unaudited condensed financial statements' carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in

18

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

income in the period that included the enactment date. Valuation allowances are established, when necessary, to reduce deferred tax assets to the amount expected to be realized. As of September 30, 2021 and December 31, 2020, the Company had deferred tax assets of approximately $1.6millionand $431, respectively, with a full valuation allowanceagainst them.

ASC 740 prescribes a recognition threshold and a measurement attribute for the unaudited condensed financial statement recognition and measurement of tax positions taken or expected to be taken in a tax return. For those benefits to be recognized, a tax position must be more likely than not to be sustained upon examination by taxing authorities. There were no unrecognized tax benefits as of September 30, 2021. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as income tax expense. The Company's currently taxable income primarily consists of interest and dividends earned and unrealized gains on investments held in the Trust Account. No amounts were accrued for the payment of interest and penalties as of September 30, 2021 and December 31, 2020. The Company is currently not aware of any issues under review that could result in significant payments, accruals, or material deviation from its position. The Company is subject to income tax examinations by major taxing authorities since inception.

Net Income (Loss) Per Share of Common Stock

The Company complies with accounting and disclosure requirements of FASB ASC Topic 260, "Earnings Per Share." The Company has two classes of shares, which are referred to as Class A common stock and Class B common stock. Income and losses are shared pro rata between the two classes of shares. Net income (loss) per common share is calculated by dividing the net income (loss) by the weighted average shares of common stock outstanding for the respective period.

The calculation of diluted net income (loss) does not consider the effect of the warrants underlying the Units sold in the Initial Public Offering and the private placement warrants to purchase an aggregate of 23,160,000 shares of Class A common stock in the calculation of diluted income (loss) per share, because they are contingently exercisable, and their inclusion would be anti-dilutive under the treasury stock method. As a result, diluted net income (loss) per share is the same as basic net income (loss) per share for the three and nine months ended September 30, 2021. Accretion associated with the redeemable Class A common stock is excluded from earnings per share as the redemption value approximates fair value.

The table below presents a reconciliation of the numerator and denominator used to compute basic and diluted net loss per share for each class of common stock:

The following table reflects the calculation of basic and diluted net income (loss) per share of common stock:

For the Three Months Ended September 30, 2021

For the Nine Months Ended September 30, 2021

Class A

Class B

Class A

Class B

Basic and diluted net income (loss) per common stock

Numerator:

Allocation of net income (loss)

$

143,438

$

35,859

$

(3,070,492

)

$

(885,586

)

Denominator:

Basic and diluted weighted average common stock outstanding

55,200,000

13,800,000

46,909,890

13,529,670

Basic and diluted net income (loss) per common stock

$

0.00

$

0.00

$

(0.07

)

$

(0.07

)

19

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Recent Accounting Pronouncements

In August 2020, the FASB issued ASU No. 2020-06, Debt-Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity's Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity's Own Equity ("ASU 2020-06"), which simplifies accounting for convertible instruments by removing major separation models required under current GAAP. The ASU also removes certain settlement conditions that are required for equity-linked contracts to qualify for the derivative scope exception, and it simplifies the diluted earnings per share calculation in certain areas. The Company adopted ASU 2020-06on January 1, 2021 using a modified retrospective method of transition. Adoption of the ASU did not impact the Company's financial position, results of operations or cash flows.

The Company's management does not believe that any other recently issued, but not yet effective, accounting standards if currently adopted would have a material effect on the accompanying financial statements.

Note 3 - Initial Public Offering

On February 11, 2021, the Company consummated its Initial Public Offering of 55,200,000 Units, including 7,200,000 Over-Allotment Units, at $10.00 per Unit, generating gross proceeds of $552.0 million, and incurring offering costs of approximately $31.1 million, of which approximately $19.3 million was for deferred underwriting commissions.

Each Unit consists of one share of the Company's Class A common stock, $0.0001 par value, and one-fourth of one Public Warrant.

Note 4 - Related Party Transactions

Founder Shares

On December 23, 2020, 11,500,000 shares of the Company's Class B common stock (the "Founder Shares") were issued to the Sponsor in exchange for the payment of $25,000 of offering costs on behalf of the Company, or approximately $0.002 per share. In February 2021, the Sponsor forfeited 100,000 Founder Shares back to the Company and the Company issued an aggregate of 100,000 Founder Shares, in an amount totaling 50,000, to each of the Company's independent directors. In February 2021, the Company effected a dividend of 2,300,000 of the Company's Founder Shares, which resulted in an aggregate of 13,800,000 Founder Shares outstanding. Up to 1,800,000 Founder Shares were subject to forfeiture to the extent that the over-allotment option was not exercised by the underwriters, so that the Founder Shares would represent 20.0% of the Company's issued and outstanding shares after the Initial Public Offering. The underwriters exercised the over-allotment option in full on February 11, 2021; thus, these 1,800,000 Founder Shares were no longer subject to forfeiture.

The holders of the Founders Shares agreed, subject to limited exceptions, not to transfer, assign or sell any of their Founder Shares until the earlier to occur of: (A) one year after the completion of the Initial Business Combination or (B) subsequent to the Initial Business Combination, (x) if the reported last sale price of the Company's Class A common stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after the Initial Business Combination, or (y) the date on which the Company completes a liquidation, merger, capital stock exchange, reorganization or other similar transaction that results in all of the Company's stockholders having the right to exchange their shares of common stock for cash, securities or other property.

Private Placement Warrants

Simultaneously with the closing of the Initial Public Offering, the Company consummated the Private Placement of 9,360,000 Private Placement Warrants at a price of $1.50 per Private Placement Warrant to the Sponsor, generating proceeds of approximately $14.0 million.

Each whole Private Placement Warrant is exercisable for one whole share of the Company's Class A common stock at a price of $11.50 per share. A portion of the purchase price of the Private Placement Warrants was added to the

20

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

proceeds from the Initial Public Offering held in the Trust Account. If the Initial Business Combination is not completed within the Combination Period, the proceeds from the sale of the Private Placement Warrants held in the Trust Account will be used to fund the redemption of the Public Shares (subject to the requirements of applicable law) and the Private Placement Warrants will expire worthless. The Private Placement Warrants will be non-redeemable and exercisable on a cashless basis so long as they are held by the Sponsor or its permitted transferees.

The Sponsor and the Company's officers and directors agreed, subject to limited exceptions, not to transfer, assign or sell any of their Private Placement Warrants until 30 days after the completion of the Initial Business Combination.

Related Party Loans

On December 23, 2020, the Sponsor agreed to loan the Company an aggregate of up to $300,000 to cover expenses related to the Initial Public Offering pursuant to an unsecured promissory note (the "Note"). This Note was non-interest bearing and payable upon the closing date of the Initial Public Offering. The Company had borrowed approximately $182,000 under the Note. On February 17, 2021, the Company repaid the Note in full.

In addition, in order to finance transaction costs in connection with an Initial Business Combination, the Sponsor or an affiliate of the Sponsor, or certain of the Company's officers and directors may, but are not obligated to, loan the Company funds as may be required ("Working Capital Loans"). If the Company completes an Initial Business Combination, the Company will repay the Working Capital Loans out of the proceeds of the Trust Account released to the Company. Otherwise, the Working Capital Loans would be repaid only out of funds held outside the Trust Account. In the event that an Initial Business Combination does not close, the Company may use a portion of proceeds held outside the Trust Account to repay the Working Capital Loans but no proceeds held in the Trust Account would be used to repay the Working Capital Loans. Except for the foregoing, the terms of such Working Capital Loans, if any, have not been determined and no written agreements exist with respect to such loans. The Working Capital Loans would either be repaid upon consummation of an Initial Business Combination or, at the lenders' discretion, up to $1.5 million of such Working Capital Loans may be convertible into warrants of the post Initial Business Combination entity at a price of $1.50 per warrant. The warrants would be identical to the Private Placement Warrants. As of September 30, 2021 and December 31, 2020, the Company had no borrowings under the Working Capital Loans.

Administrative Services Agreement

Commencing on the date the Units were first listed on the NYSE, the Company agreed to pay the Sponsor a total of $10,000 per month for office space, utilities and secretarial and administrative support. Upon completion of the Initial Business Combination or the Company's liquidation, the Company will cease paying these monthly fees. For the three and nine months ended September 30, 2021, the Company incurred expenses of $30,000 and approximately $76,000 under the administrative services agreement, respectively. As of September 30, 2021 and December 31, 2020, the Company had no balance outstanding for services in connection with such agreement on the accompanying condensed balance sheets.

Note 5 - Commitments and Contingencies

Registration Rights

The holders of the Founder Shares, Private Placement Warrants and any warrants that may be issued upon conversion of the Working Capital Loans (and any shares of Class A common stock issuable upon the exercise of the Founder Shares, Private Placement Warrants and warrants that may be issued upon conversion of Working Capital Loans and upon conversion of the Founder Shares) were entitled to registration rights pursuant to a registration rights agreement signed in connection with the consummation Initial Public Offering. The holders of these securities were entitled to make up to three demands, excluding short form demands, that the Company register such securities. In addition, the holders have certain "piggy-back" registration rights with respect to registration statements filed subsequent to the consummation of an Initial Business Combination. The registration rights agreement will not contain liquidating damages or other cash settlement provisions resulting from delays in registering the Company's securities. The Company will bear the expenses incurred in connection with the filing of any such registration statements.

Underwriting Agreement

21

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

The Company granted the underwriters a 45-day option to purchase up to 7,200,000 additional Units to cover over-allotments, if any, at the Initial Public Offering price less the underwriting discounts and commissions. The underwriters exercised the over-allotment option in full on February 11, 2021.

The underwriters were entitled to an underwriting discount of $0.20 per Unit, or approximately $11.0 million in the aggregate, paid upon the closing of the Initial Public Offering. In addition, $0.35 per Unit, or approximately $19.3 million in the aggregate will be payable to the underwriters for deferred underwriting commissions. The deferred fee will become payable to the underwriters from the amounts held in the Trust Account solely in the event that the Company completes an Initial Business Combination, subject to the terms of the underwriting agreement for the Initial Public Offering.

Note 6 - Class A Common Stock Subject to Possible Redemption

The Company's Class A common stock features certain redemption rights that are considered to be outside of the Company's control and subject to the occurrence of future events. The Company is authorized to issue 250,000,000 shares of Class A common stock with a par value of $0.0001 per share. Holders of the Company's Class A common stock are entitled to one vote for each share. As of September 30, 2021, there were 55,200,000 shares of Class A common stock issued and outstanding, all of which were subject to redemption. As of December 31, 2020, there were no shares of Class A common stock issued or outstanding.

The Class A common stock reflected on the unaudited condensed balance sheet is reconciled on the following table:

Gross Proceeds

$

552,000,000

Less:

Fair value of Public Warrants at issuance

(18,630,000

)

Offering costs allocated to Class A common stock subject to possible redemption

(30,025,419

)

Plus:

Accretion on Class A common stock subject to possible redemption amount

48,655,419

Class A common stock subject to possible redemption

$

552,000,000

Note 7 - Stockholders' Equity (Deficit)

Preferred Stock - The Company is authorized to issue 1,000,000 shares of preferred stock, with a par value of $0.0001 per share, with such designations, voting and other rights and preferences as may be determined from time to time by the Company's board of directors. As of September 30, 2021 and December 31, 2020, there were no shares of preferred stock issued or outstanding.

Class A Common Stock - The Company is authorized to issue 250,000,000 shares of Class A common stock with a par value of $0.0001 per share. As of September 30, 2021, there were 55,200,000 shares of Class A common stock issued and outstanding, all of which were subject to possible redemption and therefore classified as temporary equity on the accompanying condensed balance sheets (see Note 6).. As of December 31, 2020, there were no shares of Class A common stock issued or outstanding.

Class B Common Stock - The Company is authorized to issue 20,000,000 shares of Class B common stock with a par value of $0.0001 per share. As of September 30, 2021 and December 31, 2020, there were 13,800,000 shares of Class B common stock issued and outstanding, which such amount having been retroactively restated to reflect the stock dividend in February 2021 as discussed in Note 4.

Holders of Class A common stock and Class B common stock will vote together as a single class on all matters submitted to a vote of the stockholders, except as required by law. Each share of common stock will have one vote on all such matters.

The Class B common stock will automatically convert into Class A common stock at the time of the Initial Business Combination on a one-for-one basis, subject to adjustment for stock splits, stock dividends, reorganizations, recapitalizations and the like and subject to further adjustment as provided herein. In the case that additional shares of Class A common stock, or equity-linked securities, are issued or deemed issued in excess of the amounts sold in the Initial Public Offering and related to the closing of the Initial Business Combination, the ratio at which shares of Class B common stock shall convert into shares of Class A common stock will be adjusted (unless the holders of a majority of the outstanding shares of Class B common stock agree to waive such adjustment with respect to any such issuance or deemed issuance) so that the number of shares of Class A common stock issuable upon conversion of all shares of Class B common stock will equal, in the aggregate, on an as-converted basis,

22

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

20% of the sum of the total number of all shares of common stock outstanding upon the completion of the Initial Public Offering plus all shares of Class A common stock and equity-linked securities issued or deemed issued in connection with the Initial Business Combination (excluding any shares or equity-linked securities issued, or to be issued, to any seller in the Initial Business Combination).

Note 8 - Derivative Warrant Liabilities

As of September 30, 2021, there were 13,800,000 and 9,360,000 Public Warrants and Private Placement Warrants, respectively, outstanding.

Public Warrants may only be exercised for a whole number of shares of Class A common stock. No fractional Public Warrants will be issued upon separation of the Units and only whole Public Warrants will trade. The Public Warrants have an exercise price of $11.50 per share, subject to adjustments, and will expire five years after the completion of an Initial Business Combination or earlier upon redemption or liquidation. The warrants will become exercisable on the later of (a) 30 days after the completion of an Initial Business Combination or (b) 12 months from the closing of the Initial Public Offering; provided in each case that the Company has an effective registration statement under the Securities Act covering the shares of Class A common stock issuable upon exercise of the Public Warrants and a current prospectus relating to them is available (or the Company permits holders to exercise their Public Warrants on a cashless basis and such cashless exercise is exempt from registration under the Securities Act). The Company agreed that as soon as practicable, but in no event later than 15 business days after the closing of the Initial Business Combination, the Company will use its best efforts to file with the SEC and have an effective registration statement covering the shares of Class A common stock issuable upon exercise of the warrants and to maintain a current prospectus relating to those shares of Class A common stock until the warrants expire or are redeemed. Notwithstanding the above, if the Company's shares of Class A common stock are at the time of any exercise of a warrant not listed on a national securities exchange such that they satisfy the definition of a "covered security" under Section 18(b)(1) of the Securities Act, the Company may, at its option, require holders of Public Warrants who exercise their warrants to do so on a "cashless basis" in accordance with Section 3(a)(9) of the Securities Act and, in the event the Company so elect, it will not be required to file or maintain in effect a registration statement, and in the event the Company does not so elect, it will use its best efforts to register or qualify the shares under applicable blue sky laws to the extent an exemption is not available.

The Private Placement Warrants (including the shares of Class A common stock issuable upon exercise of the Private Placement Warrants) will not be transferable, assignable or salable until 30 days after the completion of an Initial Business Combination, subject to certain limited exceptions, and they will not be redeemable by the Company, subject to certain limited exceptions, so long as they are held by the Sponsor or its permitted transferees. The Sponsor, or its permitted transferees, has the option to exercise the Private Placement Warrants for cash or on a cashless basis. Except as described below, the Private Placement Warrants have terms and provisions that are identical to those of the Public Warrants, including as to exercise price, exercisability and exercise period. If the Private Placement Warrants are held by holders other than the Sponsor or its permitted transferees, the Private Placement Warrants will be redeemable by the Company in all redemption scenarios and exercisable by the holders on the same basis as the Public Warrants.

Redemption of warrants when the price per share of Class A common stock equals or exceeds $18.00

Once the warrants become exercisable, the Company may redeem the outstanding warrants:

in whole and not in part;

at a price of $0.01 per warrant;

23

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

upon a minimum of 30 days' prior written notice of redemption, or the 30-day redemption period, to each warrant holder; and

if, and only if, the reported last sale price of the Class A common stock equals or exceeds $18.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within a 30-trading day period ending on the third trading day prior to the date on which the Company sends the notice of redemption to the warrant holders.

The Company will not redeem the warrants as described above unless a registration statement under the Securities Act covering the shares of Class A common stock issuable upon exercise of the warrants is effective and a current prospectus relating to those shares of Class A common stock is available throughout the 30-day redemption period. If and when the warrants become redeemable by the Company, it may exercise its redemption right even if it is unable to register or qualify the underlying securities for sale under all applicable state securities laws.

The Company has established the last of the redemption criterion discussed above to prevent a redemption call unless there is at the time of the call a significant premium to the warrant exercise price. If the foregoing conditions are satisfied and the Company issues a notice of redemption of the warrants, each warrant holder will be entitled to exercise its warrant prior to the scheduled redemption date. However, the price of the Class A common stock may fall below the $18.00 redemption trigger price (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) as well as the $11.50 (for whole shares) warrant exercise price after the redemption notice is issued.

Redemption of warrants when the price per share of Class A common stock equals or exceeds $10.00

Once the warrants become exercisable, the Company may redeem the outstanding warrants:

in whole and not in part;

at a price of $0.10 per warrant, provided that holders will be able to exercise their warrants on a cashless basis prior to redemption and receive that number of shares of Class A common stock determined in part by the redemption date and the "fair market value" of the Class A common stock except as otherwise described below;

upon a minimum of 30 days' prior written notice to each warrant holder; and

if, and only if, the reported last sale price of the Class A common stock equals or exceeds $10.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) on the trading day prior to the date on which the Company sends notice of redemption to the warrant holders.

The "fair market value" of the Class A common stock shall mean the average reported last sale price of the Class A common stock for the 10 trading days immediately following the date on which the notice of redemption is sent to the holders of warrants. The Company will provide the warrant holders with the final fair market value no later than one business day after the ten-trading day period described above ends. In no event will the warrants be exercisable on a cashless basis in connection with this redemption feature for more than 0.361 shares of Class A common stock per whole warrant (subject to adjustment). This redemption feature differs from the typical warrant redemption features used in some other blank check offerings.

No fractional shares of Class A common stock will be issued upon redemption. If, upon redemption, a holder would be entitled to receive a fractional interest in a share, the Company will round down to the nearest whole number of the number of shares of Class A common stock to be issued to the holder.

If the Company is unable to complete an Initial Business Combination within the Combination Period and the Company liquidates the funds held in the Trust Account, holders of warrants will not receive any of such funds with respect to their warrants, nor will they receive any distribution from the Company's assets held outside of the Trust Account with the respect to such warrants. Accordingly, the warrants may expire worthless.

24

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Note 9 - Fair Value Measurements

The following table presents information about the Company's financial assets and liabilities that are measured at fair value on a recurring basis as of September 30, 2021 by level within the fair value hierarchy:

Description

Quoted Prices in Active

Markets (Level 1)

Significant Other

Observable Inputs

(Level 2)

Significant Other

Unobservable Inputs

(Level 3)

Assets:

Investments held in Trust Account - money market funds

$

552,043,041

$

-

$

-

Liabilities:

Derivative public warrant liabilities

$

15,180,000

$

-

$

-

Derivative private warrant liabilities

$

-

$

-

$

12,729,600

Total Fair Value

$

567,223,041

$

-

$

12,729,600

As of December 31, 2020, there were no assets or liabilities that are measured at fair value on a recurring basis.

Transfers to/from Levels 1, 2 and 3 are recognized at the beginning of the reporting period. The estimated fair value of Public Warrants was transferred from a Level 3 measurement to a Level 1 measurement in April 2021, when the Public Warrants were separately listed and traded.There were no other transfers to/from Levels 1, 2, and 3 during the three and nine months ended September 30, 2021.

Level 1 assets include investments in money market funds that invest solely in U.S. Treasury securities. The Company uses inputs such as actual trade data, quoted market prices from dealers or brokers, and other similar sources to determine the fair value of its investments.

For periods where no observable traded price is available, the fair value of the Public Warrants and the Private Placement Warrants have been estimated using a Black-Scholes option pricing model. For periods subsequent to the detachment of the Public Warrants from the Units, the fair value of the Public Warrants is based on the observable listed price for such warrants. The estimated fair value of the Public Warrants, prior to the Public Warrants being traded in an active market, and of the Private Placement Warrants, is determined using Level 3 inputs. Inherent in a Black-Scholes option pricing model are assumptions related to expected stock-price volatility, expected life, risk-free interest rate and dividend yield. The Company estimates the volatility of its common stock warrants based on implied volatility from the Company's traded warrants and from historical volatility of select peer company's common stock that matches the expected remaining life of the warrants. The risk-free interest rate is based on the U.S. Treasury zero-coupon yield curve on the grant date for a maturity similar to the expected remaining life of the warrants. The expected life of the warrants is assumed to be equivalent to their remaining contractual term. The dividend rate is based on the historical rate, which the Company anticipates remaining at zero.

The following table provides quantitative information regarding Level 3 fair value measurements inputs at their measurement dates:

As of September 30, 2021

Volatility

20.0%

Stock price

$

9.88

Expected life of the warrants

5

Risk-free rate

0.98%

Dividend yield

0.0%

The change in the fair value of the derivative warrant liabilities, measured using Level 3 inputs, for the three and nine months ended September 30, 2021 is summarized as follows:

25

SPARTAN ACQUISITION CORP. III

NOTES TO UNAUDITED CONDENSED FINANCIAL STATEMENTS

Derivative warrant liabilities at January 1, 2021

$

-

Issuance of Public and Private Warrants

32,670,000

Change in fair value of derivative warrant liabilities

2,462,880

Derivative warrant liabilities at March 31, 2021

35,132,880

Transfer of Public Warrants to Level 1

(20,175,600

)

Change in fair value of derivative warrant liabilities

(823,680

)

Derivative warrant liabilities at June 30, 2021

14,133,600

Change in fair value of derivative warrant liabilities

(1,404,000

)

Derivative warrant liabilities at September 30, 2021

$

12,729,600

Note 10 - Subsequent Events

The Company evaluated subsequent events and transactions that occurred up to the date the unaudited condensed financial statements were issued. The Company did not identify any subsequent events that would have required adjustment or disclosure in the unaudited condensed financial statements.

26

Item 2.

Management's Discussion and Analysis of Financial Condition and Results of Operations

References to the "Company," "our," "us" or "we" refer to Spartan Acquisition Corp. III. The following discussion and analysis of the Company's financial condition and results of operations should be read in conjunction with the unaudited condensed financial statements and the notes thereto contained elsewhere in this Form 10-Q/A. Certain information contained in the discussion and analysis set forth below includes forward-looking statements that involve risks and uncertainties.

Cautionary Note Regarding Forward-Looking Statements

This Form 10-Q/Aincludes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the "Securities Act"), and Section 21E of the Securities Exchange Act of 1934, as amended (the "Exchange Act"). We have based these forward-looking statements on our current expectations and projections about future events. These forward-looking statements are subject to known and unknown risks, uncertainties and assumptions about us that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by such forward-looking statements. In some cases, you can identify forward-looking statements by terminology such as "may," "should," "could," "would," "expect," "plan," "anticipate," "believe," "estimate," "continue," or the negative of such terms or other similar expressions. Such statements include, but are not limited to, possible business combinations and the financing thereof, and related matters, as well as all other statements other than statements of historical fact included in this Form 10-Q/A. Factors that might cause or contribute to such a discrepancy include, but are not limited to, those described in our other U.S. Securities and Exchange Commission ("SEC") filings.

Overview

We are a blank check company incorporated in Delaware on December 23, 2020for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses (the "Initial Business Combination"). Our sponsor is Spartan Acquisition Sponsor III LLC ("Sponsor").

The registration statement for our initial public offering (the "Initial Public Offering") was declared effective on February 8, 2021. On February 11, 2021, we consummated the Initial Public Offering of 55,200,000 units (the "Units" and, with respect to the Class A common stock included in the Units being offered, the "Public Shares"), including 7,200,000 additional Units to cover over-allotments (the "Over-Allotment Units"), at $10.00 per Unit, generating gross proceeds of $552.0 million, and incurring offering costs of approximately $31.1 million, of which approximately $19.3 million was for deferred underwriting commissions.

Simultaneously with the closing of the Initial Public Offering, we consummated the private placement ("Private Placement") of 9,360,000 warrants (each, a "Private Placement Warrant" and collectively, the "Private Placement Warrants") at a price of $1.50 per Private Placement Warrant to our Sponsor, generating proceeds of approximately $14.0 million.

Upon the closing of the Initial Public Offering and the Private Placement, $552.0 million ($10.00 per Unit) of the net proceeds of the Initial Public Offering and certain of the proceeds of the Private Placement was placed in a trust account (the "Trust Account"). The proceeds held in the Trust Account were invested only in U.S. government securities with a maturity of 185 days or less or in money market funds that meet certain conditions under Rule 2a-7 under the Investment Company Act of 1940, as amended (the "Investment Company Act"), and that invest only in direct U.S. government treasury obligations, as determined by us. Funds will remain in the Trust Account until the earlier of (i) the consummation of the Initial Business Combination or (ii) the distribution of the Trust Account proceeds as described below. The remaining proceeds outside the Trust Account may be used to pay for business, legal and accounting due diligence on prospective acquisitions and continuing general and administrative expenses.

If we are unable to complete an Initial Business Combination within 24 months from the closing of the Initial Public Offering, or February 11, 2023 (the "Combination Period"), we will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but no more than ten business days thereafter subject to lawfully available funds therefor, redeem the Public Shares, at a per-share price, payable in cash, equal to the aggregate amount

27

then on deposit in the Trust Account including interest earned on the funds held in the Trust Account and not previously released to usto pay ourfranchise and income taxes (less up to $100,000 of such net interest to pay dissolution expenses), divided by the number of then outstanding Public Shares, which redemption will completely extinguish Public Stockholders' rights as stockholders (including the right to receive further liquidating distributions, if any), subject to applicable law, and (iii) as promptly as reasonably possible following such redemption, subject to the approval of ourremaining stockholders and ourboard of directors, dissolve and liquidate, subject in each case to our obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. OurSponsor and ourofficers and directors will enter into a letter agreement, signed upon the effective date of the Initial Public Offering, with us, pursuant to which they agreedto waive their rights to liquidating distributions from the Trust Account with respect to any Founder Shares (as defined below) held by them if wefail to complete the Initial Business Combination within the Combination Period. However, if ourSponsor or any of ourdirectors, officers or affiliates acquires shares of Class A common stock in or after the Initial Public Offering, they will be entitled to liquidating distributions from the Trust Account with respect to such shares if wefail to complete the Initial Business Combination within the prescribed time period.

Proposed Initial Business Combination

On July 28, 2021, the Company entered into a Business Combination Agreement and Plan of Reorganization (the "Business Combination Agreement") with Athena Pubco B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) ("NewCo"), Athena Merger Sub, Inc., a Delaware corporation ("Merger Sub"), Madeleine Charging B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) ("Madeleine Charging"), Allego Holding B.V., a Dutch private limited liability company (besloten vennootschap met beperkte aansprakelijkheid) ("Allego"), and, solely with respect to the sections specified therein, E8 Partenaires, a French societe par actions simplifee("E8 Investor"). Subject to the satisfaction or waiver of the conditions to closing (the "Closing") of the transactions contemplated by the Business Combination Agreement (the "Transactions"), the Transactions will effect an Initial Business Combination between the Company and Allego.

Following the Closing, MergerSub, a wholly owned subsidiary of NewCo, will merge with and into the Company, with the Company surviving the merger as a wholly owned subsidiary of NewCo (the "Surviving Corporation," and such merger, the "Spartan Merger"), through a reverse triangular merger. Immediately following the Spartan Merger, NewCo will be converted into a Dutch public limited liability company and its articles of association will be amended.

The boards of directors of each of the Company and Allego have unanimously approved the Transactions. The Transactions will require the approval of the stockholders of the Company, the effectiveness of a registration statement on Form F-4 to be filed with theU.S. Securities and Exchange Commission the ("SEC") in connection with the Transaction (the "Business Combination Registration Statement"), satisfaction of the conditions stated in the definitive agreement and other customary closing conditions. The Transaction is expected to close in the fourth quarter of 2021.

Amendment to Letter Agreement

In connection with the execution of the Business Combination Agreement, on July 28, 2021, the Company, Sponsor and certain of Sponsor's executive officers and directors (together with Sponsor, collectively, the "Insiders") entered into an amendment (the "Letter Agreement Amendment") to that certain Letter Agreement (the "Existing Letter Agreement") dated as of February 8, 2021, by and among the Company, Sponsor and the Insiders party thereto, pursuant to which each Insider has agreed, effective as of the Closing and subject to certain exceptions, to modify the lock-up restrictions set forth in the Existing Letter Agreement such that such Insider will agree not to Transfer (as defined in the Letter Agreement Amendment) any NewCo ordinary shares issued to such Insider in respect of any shares of the Company's shares of Class A common stock and Class B common stock (the "Company's Common Stock") that may be received by such Insider at the Closing upon conversion of the Company's Founders Shares pursuant to the Business Combination Agreement until (i) six months after the Closing or (ii) earlier if (a) the last reported sale price of NewCo ordinary shares equals or exceeds $12.00 per share for any 20 trading days within a 30-day trading period commencing at least 120 days after the date upon which the Closing occurs (the "Closing Date"), (b) NewCo consummates a subsequent liquidation, merger, stock exchange or other similar transaction which results in all NewCo's stockholders having the right to exchange their shares of NewCo ordinary shares for cash, securities, or other property or (c) the board of directors of NewCo determines that the earlier termination of such restrictions is appropriate. Under the Letter Agreement Amendment, each Insider also agreed, effective as of the Closing and subject

28

to certain exceptions, to modified transfer restrictions prohibiting the transfer of any Assumed Warrants, and any NewCo ordinary shares underlying any Assumed Warrants, until 30 days after the Closing Date.

Registration Rights Agreement

In connection with the Closing, NewCo, Sponsor, Madeleine Charging, E8 Investor and certain other holders of NewCo Ordinary Shares (collectively, the "Reg Rights Holders") will enter into a Registration Rights Agreement attached as an exhibit to the Business Combination Agreement (the "Registration Rights Agreement"). Pursuant to the Registration Rights Agreement, among other things, NewCo will agree that, within fifteen (15) business days following the Closing, NewCo will file a shelf registration statement to register the resale of certain securities held by the Reg Rights Holders (the "Registerable Securities"). In certain circumstances, Reg Rights Holders that hold Registerable Securities having an aggregate value of at least $50 million can demand up to three (3) underwritten offerings. Each of the Reg Rights Holders will be entitled to customary piggyback registration rights, subject to certain exceptions, in such case of demand offerings by Madeleine Charging. In addition, under certain circumstances, Madeleine Charging may demand up to three (3) underwritten offerings. Additionally, in connection with the Closing, Spartan, Sponsor and certain other security holders named therein will terminate that certain Registration Rights Agreement, dated February 8, 2021, by and among Spartan, Sponsor and such other security holders.

Furthermore, pursuant to the Registration Rights Agreement, each of Madeleine Charging and E8 Investor will agree to the following lock-up restrictions:

(i)

Madeleine Charging will agree, subject to certain exceptions or with the consent of the board of directors of NewCo, not to Transfer (as defined in the Registration Rights Agreement) securities received by it pursuant to the Business Combination Agreement until the date that is 180 days after the Closing or earlier if, subsequent to the Closing, (A) the last sale price of the NewCo Ordinary Shares equals or exceeds $12.00 per share for any 20 trading days within any 30-trading day period commencing at least 120 days after the Closing or (B) NewCo consummates a liquidation, merger, stock exchange or other similar transaction which results in all of NewCo's stockholders having the right to exchange their NewCo Ordinary Shares for cash, securities or other property.

(ii)

E8 Investor will agree, subject to certain exceptions, not to Transfer (as defined in the Registration Rights Agreement) securities received by it in the E8 Part B Share Issuance until the date that is 18 months after the Closing or earlier if, subsequent to the Closing, NewCo consummates a liquidation, merger, stock exchange or other similar transaction which results in all of NewCo's stockholders having the right to exchange their NewCo Ordinary Shares for cash, securities or other property.

Founders Stock Agreement

Concurrently with the execution and delivery of the Business Combination Agreement, Sponsor, Jan C. Wilson and John M. Stice (collectively, the "Founders") have entered into a Founders Stock Agreement with Spartan, pursuant to which, among other things, (i) in order to effect the conversion at Closing of the Founders' shares of Spartan Founders Stock into shares of the Company's Class A Common Stock on a one-for-one basis in accordance with the Business Combination Agreement, each Founder has agreed to waive certain anti-dilution rights it may have with respect to its Spartan Founders Stock under the Spartan Charter, subject to and effectively immediately prior to the Closing, and (ii) each Founder has further agreed (a) to use its reasonable best efforts to consummate the Transactions (including by agreeing to vote all shares of the Company's Common Stock in favor of the Initial Business Combination and to not redeem any shares of the Company's Common Stock) and (b) not to transfer any shares of the Company's Common Stock or Spartan Warrants until the earlier of the Closing and any termination of the Business Combination Agreement in accordance with its terms.

Results of Operations

Our entire activity from inception through September 30, 2021, was in preparation for our formation and the Initial Public Offering, and since our Initial Public Offering, our activity has been limited to the search for a prospective Initial Business Combination. We will not generate any operating revenues until the closing and completion of our Initial Business Combination. We generate non-operating income primarily in the form of investment income from

29

our investments held in the Trust Account. We expect to incur increased expenses as a result of being a public company (for legal, financial reporting, accounting and auditing compliance), as well as for due diligence expenses.

For the three months ended September 30, 2021, we had net income of approximately $179,000, which consisted of approximately $2.6 million of non-operating gain resulting from the change in fair value of derivative warrant liabilities and approximately $7,000 of income from investments held in Trust Account, offset by approximately $2.4 million of general and administrative expenses, $30,000 of general and administrative expenses - related party, and approximately $50,000 of franchise tax expense.

For the nine months ended September 30, 2021, we had a net loss of approximately $4.0 million, which consisted of approximately $1.1 million of offering costs - derivative warrant liabilities, approximately $7.5 million of general and administrative expenses, approximately $76,000 of general and administrative expenses - related party, and approximately $0.1 million of franchise tax expense, offset by approximately $4.8 million of non-operating gain resulting from the change in fair value of derivative warrant liabilities and approximately $43,000 of income from investments held in Trust Account.

Liquidity and Going Concern

As of September 30, 2021, we had approximately $497,000 in cash and working capital deficit of approximately $5.3 million.

Our liquidity needs prior to the Initial Public Offering were satisfied through the payment of $25,000 from our Sponsor to cover for certain offering costs on our behalf in exchange for issuance of our shares of Class B common stock (the "Founder Shares"), and loan proceeds from our Sponsor of approximately $182,000 under an unsecured promissory note (the "Note"). We repaid the Note in full on February 17, 2021. Subsequent from the consummation of the Initial Public Offering, our liquidity needs will be satisfied with the proceeds from the consummation of the Private Placement not held in the Trust Account. In addition, in order to finance transaction costs in connection with an Initial Business Combination, our Sponsor may, but is not obligated to, provide us Working Capital Loans (see Note 4 to the accompanying financial statements). To date, there were no amounts outstanding under any Working Capital Loans.

We will need to raise additional capital through loans or additional investments from our Sponsor, an affiliate of our Sponsor, or our officers or directors. Our officers, directors and Sponsor, or their affiliates, may, but are not obligated to, loan us funds, from time to time or at any time, in whatever amount they deem reasonable in their sole discretion, to meet our working capital needs. Accordingly, we may not be able to obtain additional financing. If we are unable to raise additional capital, it may be required to take additional measures to conserve liquidity, which could include, but not necessarily be limited to, curtailing operations, suspending the pursuit of a potential transaction, and reducing overhead expenses. We cannot provide any assurance that new financing will be available to it on commercially acceptable terms, if at all. In connection with our assessment of going concern considerations in accordance with FASB Accounting Standards Update ("ASU") 2014-15, "Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern," management has determined these conditions raise substantial doubt about our ability to continue as a going concern through the Combination Period, which is the date we are required to cease all operations except for the purpose of winding up if we have not completed a business combination. These financial statements do not include any adjustments relating to the recovery of the recorded assets or the classification of the liabilities that might be necessary should we be unable to continue as a going concern.

Contractual Obligations

We do not have any long-term debt obligations, capital lease obligations, operating lease obligations, purchase obligations or long-term liabilities.

Critical Accounting Policies

This management's discussion and analysis of our financial condition and results of operations is based on our unaudited condensed financial statements, which have been prepared in accordance with United States generally accepted accounting principles. The preparation of these unaudited condensed financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure

30

of contingent assets and liabilities in our unaudited condensed financial statements. On an ongoing basis, we evaluate our estimates and judgments, including those related to fair value of financial instruments and accrued expenses. We base our estimates on historical experience, known trends and events and various other factors that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

Derivative Warrant Liabilities

We do not use derivative instruments to hedge exposures to cash flow, market, or foreign currency risks. We evaluate all of our financial instruments, including issued stock purchase warrants, to determine if such instruments are derivatives or contain features that qualify as embedded derivatives, pursuant to the FASB Accounting Standards Codification ("ASC") Topic 480 "Distinguishing Liabilities from Equity" ("ASC 480") and FASB ASC Topic 815, "Derivatives and Hedging" ("ASC 815"). The classification of derivative instruments, including whether such instruments should be recorded as liabilities or as equity, is re-assessed at the end of each reporting period. Derivative warrant liabilities are classified as non-current liabilities as their liquidation is not reasonably expected to require the use of current assets or require the creation of current liabilities.

The Public Warrants and the Private Placement Warrants are recognized as derivative liabilities in accordance with ASC 815. Accordingly, we recognize the warrant instruments as liabilities at fair value and adjust the instruments to fair value at each reporting period. The liabilities are subject to re-measurement at each balance sheet date until exercised. The initial fair value of the Public Warrants was estimated using a Black-Scholes option pricing model. The fair value of the Public Warrants as of September 30, 2021 is based on observable listed prices for such warrants. The fair value of the Private Placement Warrants as of September 30, 2021 is determined using Black-Scholes option pricing model. The determination of the fair value of the warrant liability may be subject to change as more current information becomes available and accordingly the actual results could differ significantly. Derivative warrant liabilities are classified as non-current liabilities as their liquidation is not reasonably expected to require the use of current assets or require the creation of current liabilities.

Class A Common Stock Subject to Possible Redemption

We account for our Class A common stock subject to possible redemption in accordance with the guidance in ASC 480. Class A common stock subject to mandatory redemption (if any) are classified as liability instruments and are measured at fair value. Conditionally redeemable Class A common stock (including Class A common stock that feature redemption rights that are either within the control of the holder or subject to redemption upon the occurrence of uncertain events not solely within our control) is classified as temporary equity. At all other times, shares of Class A common stock are classified as stockholders' equity. Our Class A common stock feature certain redemption rights that are considered to be outside of our control and subject to the occurrence of uncertain future events. Accordingly, 55,200,000 shares of Class A common stock subject to possible redemption are presented at redemption value as temporary equity, outside of the stockholders' equity section of our unaudited condensed balance sheet. There were no shares of Class A common stock issued and outstanding as of December 31, 2020.

Immediately upon the closing of the Initial Public Offering, we recognized the accretion from initial book value to redemption amount value. The change in the carrying value of redeemable Class A common stock resulted in charges against additional paid-in capital and accumulated deficit.

Recent Accounting Pronouncements

Management does not believe that any other recently issued, but not yet effective, accounting standards if currently adopted would have a material effect on the accompanying financial statements.

Off-Balance Sheet Arrangements

As of September 30, 2021, we did not have any off-balance sheet arrangements as defined in Item 303(a)(4)(ii) of Regulation S-K.

31

JOBS Act

The Jumpstart Our Business Startups Act of 2012 (the "JOBS Act") contains provisions that, among other things, relax certain reporting requirements for qualifying public companies. We qualify as an "emerging growth company" and under the JOBS Act are allowed to comply with new or revised accounting pronouncements based on the effective date for private (not publicly traded) companies. We are electing to delay the adoption of new or revised accounting standards, and as a result, we may not comply with new or revised accounting standards on the relevant dates on which adoption of such standards is required for non-emerging growth companies. As a result, the unaudited condensed financial statements may not be comparable to companies that comply with new or revised accounting pronouncements as of public company effective dates.

Additionally, we are in the process of evaluating the benefits of relying on the other reduced reporting requirements provided by the JOBS Act. Subject to certain conditions set forth in the JOBS Act, if, as an "emerging growth company," we choose to rely on such exemptions we may not be required to, among other things, (i) provide an auditor's attestation report on our system of internal controls over financial reporting pursuant to Section 404, (ii) provide all of the compensation disclosure that may be required of non-emerging growth public companies under the Dodd-Frank Wall Street Reform and Consumer Protection Act, (iii) comply with any requirement that may be adopted by the Public Company Accounting Oversight Board (United States) regarding mandatory audit firm rotation or a supplement to the auditor's report providing additional information about the audit and the financial statements (auditor discussion and analysis) and (iv) disclose certain executive compensation related items such as the correlation between executive compensation and performance and comparisons of the Chief Executive Officer's compensation to median employee compensation. These exemptions will apply for a period of five years following the completion of our Initial Public Offering or until we are no longer an "emerging growth company," whichever is earlier.

Item 3.

Quantitative and Qualitative Disclosures About Market Risk

We are a smaller reporting company as defined in Rule 12b-2 under the Exchange Act. As a result, pursuant to Item 305(e) of Regulation S-K, we are not required to provide the information required by this Item.

Item 4.

Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of the effectiveness of our disclosure controls and procedures as of the end of the fiscal quarter ended September 30, 2021, as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act. Based on this evaluation, our principal executive officer and principal financial officer has concluded that during the period covered by this report, our disclosure controls and procedures were not effective as of September 30, 2021, because of a material weakness in our internal control over financial reporting. A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of the Company's annual or interim financial statements will not be prevented or detected on a timely basis. Specifically, the Company's management has concluded that our control around the interpretation and accounting for complex financial instruments issued by the Company was not effectively designed or maintained. This material weakness resulted in the restatement of the Company's balance sheet as of February 11, 2021, and its interim financial statements for the quarters ended March 31, 2021 and June 30, 2021. Additionally, this material weakness could result in a misstatement of the warrant liability, Class A common stock and related accounts and disclosures that would result in a material misstatement of the financial statements that would not be prevented or detected on a timely basis.

Disclosure controls and procedures are designed to ensure that information required to be disclosed by us in our Exchange Act reports is recorded, processed, summarized, and reported within the time periods specified in the SEC's rules and forms, and that such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

32

There was no change in our internal control over financial reporting that occurred during the fiscal quarter ended September 30, 2021 covered by this Form 10-Q/A that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting except for the below:

Our principal executive officer and principal financial officer performed additional accounting and financial analyses and other post-closing procedures including consulting with subject matter experts related to the accounting for complex financial instruments. The Company's management has expended, and will continue to expend, a substantial amount of effort and resources for the remediation and improvement of our internal control over financial reporting. While we have processes to properly identify and evaluate the appropriate accounting technical pronouncements and other literature for all significant or unusual transactions, we have expanded and will continue to improve these processes to ensure that the nuances of such transactions are effectively evaluated in the context of the increasingly complex accounting standards.

33

PART II - OTHER INFORMATION

Item 1.

Legal Proceedings

There is no material litigation, arbitration or governmental proceeding currently pending against us or any members of our management team in their capacity as such.

Item 1A.

Risk Factors

In addition to the other information set forth in this Form 10-Q/A, you should carefully consider the risks discussed in Part I, Item 1A. "Risk Factors" in our Annual Report on Form 10-Kfor the period ended December 31, 2020, as filed with the SEC on March 30, 2021 and Part II, Item 1A. "Risk Factors" in our Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2021, as filed with the SEC on June 3, 2021. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition or future results. We may disclose changes to such factors or disclose additional factors from time to time in our future filings with the SEC.

Item 2.

Unregistered Sales of Equity Securities and Use of Proceeds

Unregistered Sales

In December 2020, 11,500,000 Founder Shareswere issued to the Sponsor in exchange for the payment of $25,000 of expenses on behalf of the Company, or approximately $0.002 per share. In February 2021, our Sponsor forfeited 100,000 Founder Shares back to the Company and the Company issued an aggregate of 100,000 Founder Shares for $0.002 per share, in an amount totaling 50,000 to each of our independent directors. Additionally, in February 2021, the Company effected a dividend of 2,300,000 Founder Shares, resulting in an aggregate of 13,800,000 shares of Class B common stock outstanding. The Founder Shares were issued in connection with our organization pursuant to the exemption from registration contained in Section 4(a)(2) of the Securities Act.

Simultaneously with the consummation of our Initial Public Offering, our Sponsor purchased from the Company an aggregate of 9,360,000 Private Placement Warrants at a price of $1.50 per Private Placement Warrant (for a purchase price of approximately $14,040,000). Each Private Placement Warrant entitles the holder thereof to purchase one share of our Class A common stock at an exercise price of $11.50 per share. The sale of the Private Placement Warrants was made pursuant to the exemption from registration contained in Section 4(a)(2) of the Securities Act.

Use of Proceeds

On February 11, 2021, we consummated the Initial Public Offering of 55,200,000 units, including 7,200,000 Units that were issued pursuant to the underwriters' full exercise of their over-allotment option. The Units were sold at a price of $10.00 per Unit, generating gross proceeds to us of $552,000,000.

On February 11, 2021, simultaneously with the consummation of the Initial Public Offering, we completed the private sale of 9,360,000 Private Placement Warrants at a purchase price of $1.50 per Private Placement Warrant to the Sponsor, generating gross proceeds to us of approximately $14,040,000.

Credit Suisse Securities (USA) LLC, Citigroup Global Markets Inc. and Cowen and Company, LLC acted as book-running managers and representatives of the several underwriters for the Initial Public Offering. The securities sold in the Initial Public Offering were registered under the Securities Act on registration statements on Form S-1 (File No. 333-252162and 333-252866) (the "Registration Statement"). The SEC declared the Registration Statement effective on February 8, 2021.

From December 23, 2020 (date of inception) through February 11, 2021 (the closing of our Initial Public Offering), we incurred approximately $31.1 million for costs and expenses related to the Initial Public Offering. In connection with the closing of the Initial Public Offering, we paid a total of $11,040,000 in underwriting discounts and commissions. In addition, the underwriters agreed to defer $19,320,000 in underwriting discounts and commissions, which amount will be payable upon consummation of the Initial Business Combination. Prior to the closing of the Initial Public Offering, an affiliate of the Sponsor advanced us $19,320,000 to be used for a portion of the expenses of the Initial Public Offering. A total of $182,000 was repaid upon completion of the Initial Public

34

Offering out of the $2,000,000InitialPublic Offering proceeds that were allocated for the payment of offering expenses other than underwriting discounts and commissions. There has been no material change in the planned use of proceeds from the Initial Public Offering as described in our final prospectus filed with the SEC on February 10, 2021.

After deducting the underwriting discounts and commissions (excluding the deferred portion of $9,320,000, which amount will be payable upon consummation of our Initial Business Combination) and offering expenses, the total net proceeds from our Initial Public Offering and the sale of the Private Placement Warrants were $552,000,000, of which $552,000,000 (or $10.00 per share sold in the Initial Public Offering) was placed in the Trust Account.

Item 3.

Defaults Upon Senior Securities

None.

Item 4.

Mine Safety Disclosures

Not applicable.

Item 5.

Other Information

None.

35

Item 6.

Exhibits

Exhibit

Number

Description

2.1#

Business Combination Agreement, dated as of July 28, 2021, by and among Spartan Acquisition Corp. III, Athena Pubco, B.V., Athena Merger Sub, Inc., Madeline Charging B.V., Allege Holding B.V., and, solely with respect to the sections specified therein, E8 Partenaires (incorporated by reference to Exhibit 2.1 to the Company's Current Report on Form 8-K (File No. 001-40022) filed with the SEC on July 28, 2021).

3.1

Certificate of Incorporation of Spartan Acquisition Corp. III (incorporated by reference to Exhibit 3.1 to the Company's Registration Statement on Form S-1 (File No. 333-252162) filed with the SEC on January 15, 2021).

3.2

Amended and Restated Certificate of Incorporation of Spartan Acquisition Corp. III (incorporated by reference to Exhibit 3.1 to the Company's Current Report on Form 8-K (File No. 001-40022) filed with the SEC on February 12, 2021).

3.3

Bylaws of Spartan Acquisition Corp. III (incorporated by reference to Exhibit 3.3 to the Company's Registration Statement on Form S-1 (File No. 333-252162) filed with the SEC on January 15, 2021).

4.1

Specimen Unit Certificate (incorporated by reference to Exhibit 4.1 to the Company's Registration Statement on Form S-1 (File No. 333-252162) filed with the SEC on January 15, 2021).

4.2

Specimen Class A Common Stock Certificate (incorporated by reference to Exhibit 4.2 to the Company's Registration Statement on Form S-1 (File No. 333-252162) filed with the SEC on January 15, 2021).

4.3

Specimen Warrant Certificate (incorporated by reference to Exhibit 4.3 to the Company's Registration Statement on Form S-1 (File No. 333-252162) filed with the SEC on January 15, 2021).

4.4

Warrant Agreement, dated February 8, 2021, by and between Spartan Acquisition Corp. III and Continental Stock Transfer & Trust Company, as warrant agent (incorporated by reference to Exhibit 4.1 to the Company's Current Report on Form 8-K (File No. 001-40022) filed with the SEC on February 12, 2021).

10.1

Amendment Agreement No. 1 to Letter Agreement, dated as of July 28, 2021, by and among Spartan Acquisition Corp. III, Spartan Acquisition Sponsor III LLC, and each of the undersigned individuals therein (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K (File No. 001-40022) filed with the SEC on July 28, 2021).

10.2

Founders Stock Agreement, dated as of July 28, 2021, by and among Spartan Acquisition Corp. III, Spartan Acquisition Sponsor III LLC, Jan C. Wilson and John M. Stice (incorporated by reference to the Company's Current Report on Form 8-K (File No. 001-40022) filed with the SEC on July 28, 2021).

10.3

Form of Subscription Agreement (incorporated by reference to Exhibit 99.4 to the Company's Current Report on Form 8-K (File No. 001-40022) filed with the SEC on July 28, 2021).

31.1*

Certification of Chief Executive Officer required by Rule 13a-14(a) or Rule 15d-14(a).

31.2*

Certification of the Chief Financial Officer required by Rule 13a-14(a) or Rule 15d-14(a).

32.1**

Certification of Chief Executive Officer required by Rule 13a-14(b) or Rule 15d-14(b) and 18 U.S.C. 1350.

32.2**

Certification of the Chief Financial Officer required by Rule 13a-14(b) or Rule 15d-14(b) and 18 U.S.C. 1350.

101.INS*

Inline XBRL Instance Document.

101.SCH*

Inline XBRL Taxonomy Extension Schema Document.

101.CAL*

Inline XBRL Taxonomy Extension Calculation Linkbase Document.

101.DEF*

Inline XBRL Taxonomy Extension Definition Linkbase Document.

101.LAB*

Inline XBRL Taxonomy Extension Label Linkbase Document.

101.PRE*

Inline XBRL Taxonomy Extension Presentation Linkbase Document.

104*

Cover Page Interactive Data File (embedded within the Inline XBRL document and included in Exhibit 101).

#

All schedules have been omitted pursuant to Item 601(a)(5) of Regulation S-K. A copy of any omitted schedule and/or exhibit will be furnished to the SEC upon request.

*

Filed herewith.

**

Furnished herewith.

36

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

SPARTAN ACQUISITION CORP. III

Date: November 26, 2021

By:

/s/ Geoffrey Strong

Name:

Geoffrey Strong

Title:

Chief Executive Officer

(Principal Executive Officer)

37