CERTIFICATION PURSUANT TO SECTION 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The certification set forth below is being submitted in connection with the annual report of SEALSQ Corp (the “Company”) on Form 20-F for the period ending December 31, 2023, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), for the purpose of complying with Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code.

John O’Hara, the Chief Financial Officer of the Company, certifies that, to the best of his knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange; and

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

By: /s/ John O’Hara

Name: John O’Hara

Title:  Chief Financial Officer

Date: March 21, 2024