Canton of Zug, Switzerland and Singapore – December 29, 2025 - WISeKey International Holding AG (NASDAQ:WKEY) ("WISeKey") , a global leader in cybersecurity, digital identity, and IoT solutions platform, and Columbus Acquisition Corp. (NASDAQ:COLA) ("Columbus"), a publicly traded special purpose acquisition company, today announced the confidential submission of a draft registration statement on Form F-4 (the "Confidential Registration Statement") with the U.S. Securities and Exchange Commission ("SEC") on December 23, 2025. The Confidential Registration Statement relates to the business combination previously announced on November 10, 2025 (the "business combination"), pursuant to the Busin

WISeKey to receive $250 million in equity of WISeSat.Space Holdings Corp.Transaction anticipated to close in the first half of 2026 Canton of Zug, Switzerland and Singapore, Nov. 10, 2025 (GLOBE NEWSWIRE) -- WISeKey International Holding AG ("WISeKey") (NASDAQ:WKEY, SIX: WIHN)), a global leader in cybersecurity, digital identity, and IoT solutions platform, and Columbus Acquisition Corp. ("Columbus") (NASDAQ:COLA), a Cayman Islands publicly traded special purpose acquisition company (SPAC), today announced that they have entered into a definitive Business Combination Agreement, dated as of November 9, 2025 (the "Business Combination Agreement"), for a business combination of Columbus and

WISeKey International Holding AG (NASDAQ:WKEY) and Columbus Acquisition Corp. (NASDAQ:COLA) Execute Definitive Business Combination Agreement to Publicly List WISeKey's Subsidiary WISeSat.Space Corp. Under The Name WISeSat.Space Holdings Corp. WISeKey to receive $250 million in equity of WISeSat.Space Holdings Corp.Transaction anticipated to close in the first half of 2026 Canton of Zug, Switzerland and Singapore, November 10, 2025 -- Ad-Hoc announcement pursuant to Art. 53 of SIX Listing Rules – WISeKey International Holding AG ("WISeKey") (NASDAQ:WKEY, SIX: WIHN)), a global leader in cybersecurity, digital identity, and IoT solutions platform, and Columbus Acquisition Corp. ("Columbus")