Iran Notice - Form IRANNOTICE

April 24, 2024

U.S. Securities and Exchange Commission

100 F Street, N.E.

Washington, D.C. 20549

Re:	Notice of Disclosure Filed in the Quarterly Report on Form 10-Q Under Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Exchange Act

To Whom it May Concern:

Pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Securities Exchange Act of 1934, as amended, notice is hereby provided that Blackstone Mortgage Trust, Inc. has made disclosure pursuant to those provisions in its Quarterly Report on Form 10-Q for the period ended March 31, 2024, which was filed with the U.S. Securities and Exchange Commission on April 24, 2024.

Very truly yours,

BLACKSTONE MORTGAGE TRUST, INC.

/s/ Anthony F. Marone, Jr.

Anthony F. Marone, Jr.

Chief Financial Officer

Blackstone Mortgage Trust, Inc.

345 Park Avenue, 24th Floor

New York, New York 10154

T 212 655 0220