WISeKey's WISeSat to Go Public via SPAC Merger with Columbus

Canton of Zug, Switzerland and Singapore, November 10, 2025 - WISeKey International Holding AG (Nasdaq: WKEY; SIX: WIHN), a global leader in cybersecurity, digital identity, and IoT solutions, and Columbus Acquisition Corp. (Nasdaq: COLA), a Cayman Islands publicly traded special purpose acquisition company (SPAC), today announced they have entered into a definitive Business Combination Agreement. This agreement will facilitate the public listing of WISeKey's wholly-owned subsidiary, WISeSat.Space Corp., on the Nasdaq Stock Exchange under the new name WISeSat.Space Holdings Corp. ("Pubco"). The transaction is currently expected to close in the first half of 2026.

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