EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Yellowstone Group Ltd (the “Company”) on Form 10-K for the year ended March 31, 2026 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), The undersigned hereby certifies, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge and belief:

	(1)	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 result of operations of the Company.

Date: June 25, 2026	By:	*/s/ JIANING YANG*
		JIANING YANG
		Chief Executive Officer, President, Secretary, Treasurer, Director
		(Principal Executive Officer, Principal Financial Officer, Principal Accounting Officer)