FOR IMMEDIATE RELEASE WISeSat Signs a Service Agreement with Astrocast to Allow Access to Astrocast’s Operational Satellite Constellation Geneva, Switzerland – June 25, 2025 – WISeKey International Holding Ltd (“WISeKey”) (SIX: WIHN, NASDAQ: WKEY), a leading global cybersecurity, blockchain, and IoT company, today announces that its subsidiary, WISeSat.Space, a provider of secure satellite communications and space infrastructure, signed a strategic collaboration agreement with Astrocast, a Swiss-based nanos ...

Core Points - WISeKey's subsidiary, WISeSat.Space, has signed a strategic collaboration agreement with Astrocast to access its operational satellite constellation, enhancing WISeSat's satellite connectivity capabilities [2][3] - This partnership aligns with the EU's goals for space autonomy and aims to strengthen IoT and critical infrastructure services across Europe and other strategic regions [3][4] - The collaboration will support secure IoT and communication services across various sectors, including agriculture, environmental monitoring, logistics, energy, and defense [4][5] Company Overview - WISeKey International Holding Ltd is a global leader in cybersecurity, digital identity, and IoT solutions, operating through several subsidiaries focused on different technology aspects [8][10] - WISeSat.Space provides secure satellite infrastructure aimed at supporting sovereign European communications and critical mission applications [7] - Astrocast operates a global nanosatellite IoT network, focusing on reliable connectivity for remote regions and supporting various industrial and environmental applications [6]