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Geneva, Switzerland, June 25, 2026 (GLOBE NEWSWIRE) -- FOR IMMEDIATE RELEASE Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following Additional Acquisitions SEALSQ Corp. (Nasdaq: LAES), a leading developer of semiconductors, PKI, and post-quantum technologies and its parent company, WISeKey International Holding Ltd.

FOR IMMEDIATE RELEASE WISeKey and SEALSQ Establish Quantisimo Corp. as a Special Purpose Vehicle, and Execute Letter of Intent with GigCapital8 Corp. Proposed Strategic Business Public Company at $575 Million Initial Enterprise Value with Significant Long Term Growth Potential Through Strategic Acquisitions Proposed Transaction Intended to Create a Consolidated $2 Billion Trusted Quantum Pure-Play Platform Following…

WISeKey and Its Subsidiary WISeSat. Space Corp. Announce Filing of Registration Statement on Form F-4 with the U. S. Securities and Exchange Commission Canton of Zug, Switzerland- June 24, 2026 - WISeKey International Holding Ltd.

WISeKey's SEALCOIN Platform Confirms Integration of QAIT Token Following Market Launch Geneva, Switzerland - May 29, 2026 - WISeKey International Holding Ltd. (NASDAQ: WKEY), through its SEALCOIN platform, today confirmed that the QAIT token, launched by the independent QAIT Association, will serve as the utility token utilized within the SEALCOIN ecosystem.

Zug, Switzerland, May 29, 2026 - WISeKey International Holding Ltd. ("WISeKey" or the "Company") (SIX: WIHN, NASDAQ: WKEY), a leading global cybersecurity and IoT company, announced today that the Board of Directors has submitted its proposals for shareholder approval at the 2026 Annual General Meeting of Shareholders ("AGM").