iAnthus Capital (ITHUF) 10-Q 2022 Q3 Quarterly report

Exhibit 32.1

Certification of Chief Executive Officer

Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned, Robert Galvin, Interim Chief Executive Officer of iAnthus Capital Holdings, Inc. (the “Company”), hereby certifies that based on the undersigned’s knowledge:

1. The Company’s Quarterly Report on Form 10-Q for the period ended September 30, 2022 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: November 8, 2022	/s/ Robert Galvin
	Robert Galvin
	Interim Chief Executive Officer
	(Principal Executive Officer)