Conference Call Scheduled for May 21 at 10:00am ET (4:00pm CET) Zug, Switzerland – May 15, 2024 – – Ad-Hoc announcement pursuant to Art. 53 of SIX Listing Rules – WISeKey International Holding Ltd ("WISeKey") (NASDAQ:WKEY, SIX: WIHN)), a leading global cybersecurity, Semiconductors and Web 3.0 company, today announced its audited financial results for the full year ended December 31, 2023 ("FY 2023"). FY 2023 Key Financial Highlights: Revenue of $31 million represents a significant increase of 30% compared to the $24 million reported in FY 2022. This significant growth reflects the Company's successful expansion in its key markets and the underlying demand for its advanced cybersecurity solutions. Gross profit of $15 million with a profit margin of 48%, shows an improvement of $5 million from the $10 million reported in FY 2022. This growth is directly attributable to higher revenue and enhanced operational efficiencies. Net loss of $15 million, a substantial improvement compared to the $29 million net loss reported in the prior year. This positive change is primarily due to the disposal of the loss-making subsidiary, arago GmbH, completed in 2022, alongside strategic cost management initiatives. Balance sheet remains robust with total assets of $48 million and a healthy cash position of $15 million, indicating strong financial stability and the capability to fund future growth initiatives. Carlos Moreira, Chairman and CEO of WISeKey, stated, "Our solid results in 2023 are a demonstration of our sound business strategy, growth initiatives and strategic investments we made during the year. Our focus remains on fully aligning these investments with future growth opportunities. Our innovations are central to the increasingly connected ecosystem and will play a critical role as our customers adopt IoT, Post-Quantum, and Web 3.0 technologies to secure their assets." Peter Ward, CFO of WISeKey, added, "Focused execution and operating discipline were key drivers of our strong results in 2023. We are making significant progress in transitioning our business model towards more recurring revenue while maintaining our commitment to financial discipline, operational leverage, and shareholder returns." Strategic and Operational Highlights: Since 2020, WISeKey has operated as a diversified holding company and now counts four principal operational divisions: SEALSQ Corp (NASDAQ:LAES), WISeKey SA, WISeSat.Space, and WISe.ART. Each division is dedicated to a unique aspect of WISeKey's expansive technology portfolio. SEALSQ Corp:Listed on the Nasdaq in May 2023, SEALSQ completed an initial $10 million private placement in 2023 and subsequently raised another$20 million in a private placement during Q1 2024. The funds are allocated for enhancing our SEALSQ R&D in developing a new wave of quantum-ready semiconductors together with the establishment of an Open Semiconductors Assembly and Test ("OSAT") Center that would provide testing services such as the wafer test and final test, in addition to assembly services such as QFN, BGA, WLCSP, and more. This strategic move is poised to bolster WISeKey's position in the burgeoning post-quantum cryptography market, addressing the increasing threats posed by quantum computing to existing encryption models. WISeKey SA:WISeKey SA, through its WISeID platform, is at the forefront of digital communications protection. The company specializes in providing advanced security solutions that are essential for safeguarding digital interactions. At the core of WISeKey's offerings are cryptographic root keys, which are foundational elements in ensuring secure communications. Additionally, WISeKey excels in Public Key Infrastructure (PKI) management, a critical aspect of establishing and maintaining secure networks and transactions. The company's expertise also extends to the generation and management of trusted digital identities, enabling secure access and authentication in various digital environments. Through these comprehensive security measures, WISeKey plays a pivotal role in protecting digital communications against potential threats and breaches. WISeSat.Space:Emphasizing cost-effective satellite deployment through picosatellites, WISeSat.Space is positioned for growth in sectors such as agriculture, logistics, and environmental monitoring. The subsidiary's innovative approach to satellite technology is designed to meet the growing demand for satellite services, providing reliable and scalable solutions to a variety of industries. WISeKey is expanding its cooperation with the Swiss Armed Forces in the field of space travel and it plans on launching a communications satellite into space with SpaceX in 2024. WISe.ART:WISe.ART is advancing in the NFT space and recently announced a partnership with Hedera. This strategic investment underscores the transformative potential of blockchain technology in shaping the next generation of the internet. In 2023, WISe.ART reached new heights with new partnerships and several major charity events, doubling its community of participating artists from around the world with over 2,000 works uploaded on the platform 50% of which are digital artworks with an even balance of phygital packages (blending digital and physical experiences) averaging a total value of artwork of over $30 million. Moving ForwardEach of these divisions contributes uniquely to our diverse technology portfolio, which positions us at the forefront of innovation and industry leadership, and we are particularly encouraged by the pipeline of opportunities emerging for IoT semiconductors products, totaling over $60 million. This underscores the growing demand for our solutions and the promising trajectory of our business. Our diversified growth strategy is yielding tangible results, with accelerated progress in sectors such as semiconductors, cybersecurity, and emerging ventures. Projects like the innovative Smart Container initiative and investments in WISeSat.Space and blockchain tokenization for the WISe.ART Digital Platform are emblematic of our forward-thinking approach and commitment to driving value for our stakeholders. We are witnessing a strong and consistent customer demand for our cybersecurity, semiconductor products, including the CyberTrust Mark and Matter-related offerings, along with a growing market share. While 2024 may entail a temporary slowdown in growth due to market shifts, we are poised to introduce new revenue streams and capitalize on emerging opportunities.  In 2024, we anticipate generating revenue from innovative initiatives such as Low Orbit satellite projects, cybersecurity and IoT Semiconductors personalization centers, and the maturation of the WISe.ART platform. These endeavors underscore our commitment to driving innovation, enhancing our service offerings, and meeting the evolving needs of our clients. We anticipate additional revenue streams to emerge from the semiconductor personalization centers. Currently, we are in the process of establishing centers in Spain and the United States, where two highly advanced projects are underway, with government financing earmarked for allocation. These centers will not only decentralize our semiconductor capabilities but also enable us to serve a broader spectrum of clients previously inaccessible within our existing centralized structure. While the activities of WISeKey may appear disparate at first glance, when you consider the combination of our security, space, satellite, blockchain, and IoT activities, it becomes evident that they are intricately interconnected. Each facet reinforces the others, culminating in the formation of a robust Web 3.0 platform that leverages synergies across diverse domains. Furthermore, our sustained investments in research and development, particularly in post-quantum resistant technology, are poised to yield substantial returns in the coming years. This advancement is pivotal in maintaining our leadership position and delivering secure, cutting-edge solutions in an increasingly digital landscape. Conference Call The company will host a conference call to review its results on Tuesday, May 21, at 10:00 am ET (4:00 pm CET). If you wish to join the conference call, please use the dial-in information below: Toll-Free Dial-In Number: 877-445-9755 International Dial-In Number: 201-493-6744 A simultaneous webcast of the call may be accessed online via the Investor Relations section of the company's website, https://www.wisekey.com/company/investors/. The archived call will also be available on the Investor Relations section of the company's website. Of note, the Company has filed its Form 20-F with the Securities and Exchange Commission (available here).  Additionally, the Form 20-F is available on the company's website, under the Investor Relations section https://www.wisekey.com/company/investors/.  Upon request, shareholders can also obtain hard copies of the Form 20-F, free of charge. ADDITIONAL FINANCIAL & OPERATIONAL DATA Consolidated Statements of Comprehensive Income/(Loss) [as reported]   12 months ended December 31, USD'000, except earnings per share 2023   2022   2021             Net sales 30,918   23,814   17,646 Cost of sales (15,754)   (13,588)   (9,893) Depreciation of production assets (420)   (132)   (301) Gross profit 14,744   10,094   7,452             Other operating income 167   2,073   183 Research & development expenses (4,398)   (3,862)   (5,618) Selling & marketing expenses (6,523)   (7,275)   (9,111) General & administrative expenses (17,290)   (11,466)   (14,066) Total operating expenses (28,044)   (20,530)   (28,612) Operating loss (13,300)   (10,436)   (21,160)             Non-operating income 2,374   3,937   2,509 Debt conversion expense (562)   (827)   (325) Interest and amortization of debt discount (624)   (168)   (1,057) Non-operating expenses (3,107)   (5,551)   (3,426) Loss before income tax expense (15,219)