EX-32.1 4 ex32-1.htm EX-32.1

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 Cayson Acquisition Corp (the “Company”) on Form 10-K for the year ended December 31, 2025 as filed with the Securities and Exchange Commission (the “Report”), the undersigned, in the capacities and on the date indicated below, hereby certifies pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

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 results of operation of the Company.

Dated: March 24, 2026 | CAYSON ACQUISITION CORP
| (Registrant)
| By: | /s/ Yawei Cao
|  | Yawei Cao
|  | CHIEF EXECUTIVE OFFICER
|  | (PRINCIPAL EXECUTIVE OFFICER)

Dated: March 24, 2026 | CAYSON ACQUISITION CORP
| (Registrant)
| By: | /s/ Taylor Zhang
|  | Taylor Zhang
|  | CHIEF FINANCIAL OFFICER
|  | (PRINCIPAL FINANCIAL AND ACCOUNTING OFFICER)