Common Contracts

2 similar Business Combination Agreement contracts by SEALSQ Corp, Wisekey International Holding S.A.

FIRST AMENDMENT TO THE BUSINESS COMBINATION AGREEMENT
Business Combination Agreement • August 18th, 2026 • Wisekey International Holding S.A. • Services-computer processing & data preparation

This First Amendment (this “First Amendment”) to the Business Combination Agreement, dated as of August 6, 2026, amends the Business Combination Agreement, dated as of November 9, 2025 (the “Original Agreement”, as amended pursuant to this First Amendment and as may be further amended, supplemented, modified and/or restated from time to time, the “Business Combination Agreement”), by and among (i) Columbus Acquisition Corp., a Cayman Islands exempted company (together with its successors, “CAC”), (ii) WISeSat.Space Holdings Corp., a British Virgin Islands business company (“Pubco”), (iii) WISeSat Merger Sub Corp., a Cayman Islands exempted company and a wholly owned subsidiary of Pubco (“Merger Sub”), (iv) WISeSat.Space Corp., a British Virgin Islands business company (the “Company”), (v) WISeKey International Holding Ltd., a Swiss company (together with its successors, including after its anticipated domestication to the British Virgin Islands prior to the Closing, “WISeKey”) and (vi)

FIRST AMENDMENT TO THE BUSINESS COMBINATION AGREEMENT
Business Combination Agreement • August 18th, 2026 • SEALSQ Corp • Semiconductors & related devices

This First Amendment (this “First Amendment”) to the Business Combination Agreement, dated as of August 6, 2026, amends the Business Combination Agreement, dated as of November 9, 2025 (the “Original Agreement”, as amended pursuant to this First Amendment and as may be further amended, supplemented, modified and/or restated from time to time, the “Business Combination Agreement”), by and among (i) Columbus Acquisition Corp., a Cayman Islands exempted company (together with its successors, “CAC”), (ii) WISeSat.Space Holdings Corp., a British Virgin Islands business company (“Pubco”), (iii) WISeSat Merger Sub Corp., a Cayman Islands exempted company and a wholly owned subsidiary of Pubco (“Merger Sub”), (iv) WISeSat.Space Corp., a British Virgin Islands business company (the “Company”), (v) WISeKey International Holding Ltd., a Swiss company (together with its successors, including after its anticipated domestication to the British Virgin Islands prior to the Closing, “WISeKey”) and (vi)