Geneva, Switzerland , July  31, 2026  (GLOBE NEWSWIRE) --   SEALSQ Corp (NASDAQ:LAES), (&#34;SEALSQ&#34; or &#34;Company&#34;), a company focused on semiconductors, PKI, and post-quantum technology solutions, today

LAES

SEALSQ Launches Commercial Phase of Miraex Quantum Photonics Technology Following Strategic Acquisition

SEALSQ Advances to Commercial Phase with Miraex, Expanding Quantum Stack

<section class="insight" data-version="1">
  <section data-block="information">
    <h3>Information</h3>
    <p>Geneva, Switzerland , July  31, 2026  (GLOBE NEWSWIRE) --   SEALSQ Corp (NASDAQ:LAES), (&amp;#34;SEALSQ&amp;#34; or &amp;#34;Company&amp;#34;), a company focused on semiconductors, PKI, and post-quantum technology solutions, today</p>
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  <section data-block="ai-summary-paragraph">
    <h3>AI Summary</h3>
    <p>SEALSQ has begun Miraex&#039;s commercial phase following the June 2, 2026 100% acquisition financed by its $200 million Quantum Fund, with over $65 million deployed to quantum investments. Miraex provides a Thin Film Lithium Tantalate PIC that bridges microwave and optical quantum networks, enabling a sovereign quantum stack. The rollout targets four markets—DQC, quantum networking, sensing, and secure space cloud—potentially expanding government and hyperscaler revenue.</p>
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  <section data-block="ai-summary-bullets">
    <h3>Key Points</h3>
    <ul><li>SEALSQ completes Miraex acquisition on June 2, 2026; commercial phase begins.</li><li>Miraex PIC enables microwave-to-optical quantum interconnects for the stack.</li><li>Funded by a $200M SEALSQ Quantum Fund; over $65M deployed to quantum investments.</li><li>Commercial rollout targets four markets: DQC, quantum networking, sensing, QOSC.</li><li>Strategic partnerships with hyperscalers, telecoms, and governments to scale.</li></ul>
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  <section data-block="companies-mentioned">
    <h3>Companies Mentioned</h3>
    <ul><li><strong>SEALSQ Corp (LAES)</strong>: Announces commercialization milestone; potential revenue pipeline from Miraex-led stack.</li><li><strong>Miraex SA (N/A)</strong>: Core photonics tech; constitutes cornerstone of SEALSQ’s quantum photonics activities; acquired June 2026.</li><li><strong>The Equity Group Inc. (N/A)</strong>: US investor relations provider for SEALSQ; standard IR channel for announcements.</li></ul>
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  <section data-block="category">
    <h3>Corporate Developments</h3>
    <p>Category: Corporate Developments / M&amp;A. The announcement centers on a completed acquisition and the transition to commercialization of a strategic tech stack, signaling a potential revenue build and competitive differentiation.</p>
  </section>

  <section data-block="market-moving">
    <h3>Market-Moving</h3>
    <ul><li>Miraex commercialization milestone may drive positive revaluation of LAES on potential revenue uplift.</li><li>QuantumFund financing signals capital commitment; possible impact on liquidity and cap structure.</li><li>Strategic gov&#039;t and hyperscaler partnerships could lead to large deals; monitor for announcements.</li><li>Execution risk and long sales cycles could cap upside if milestones slip.</li></ul>
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  <section data-block="key-facts">
    <h3>Key Facts</h3>
    <ul><li>Acquisition of Miraex completed on June 2, 2026.</li><li>Miraex is the cornerstone of SEALSQ&#039;s quantum photonics activities.</li><li>Acquisition financed by SEALSQ&#039;s $200 million Quantum Fund; more than $65 million deployed.</li><li>Miraex&#039;s TFLT PIC platform enables interconnection between microwave and optical quantum frequencies.</li><li>Commercial rollout targets four markets: Distributed Quantum Computing, Quantum Networking, Quantum Sensing, Quantum Orbital Space Cloud.</li></ul>
  </section>

  <section data-block="trading-thesis">
    <h3>Trading Thesis</h3>
    <p>Near-term upside for LAES on Miraex commercialization and expanded addressable markets, with visibility into revenue potential within the next 12 months.</p>
  </section>
</section>


<link type="text/css" rel="stylesheet" href="https://www.globenewswire.com/styles/gnw_nitf.css"></link><p align="center">Geneva, Switzerland , July  31, 2026  (GLOBE NEWSWIRE) -- <br></br></p>  <p align="justify">SEALSQ Corp (NASDAQ:<a class="ticker" href="https://www.benzinga.com/quote/LAES">LAES</a>), (&#34;SEALSQ&#34; or &#34;Company&#34;), a company focused on semiconductors, PKI, and post-quantum technology solutions, today announced the start of the commercial phase of the groundbreaking quantum photonics technology developed by Miraex SA, following the 100% acquisition of the Swiss company in June 2026.</p>  <p align="justify">The acquisition represented a major milestone in SEALSQ’s strategy to build the world’s first Quantum Sovereign Vertical Stack, integrating secure semiconductor hardware, post-quantum cryptography, quantum communications, quantum networking, and quantum computing into a single sovereign technology platform.</p>  <p align="justify">Completed on June 2, 2026, the acquisition was financed through SEALSQ’s $200 million Quantum Fund (SEALQUANTUM.com), which has already deployed more than $65 million into strategic quantum technology investments. Miraex, headquartered at the EPFL Innovation Park in Ecublens, Switzerland, now becomes the cornerstone of SEALSQ’s quantum photonics activities.</p>  <p align="justify">"This marks SEALSQ&#39;s transition from breakthrough research to commercial deployment,&#34; said Carlos Moreira, Chairman and CEO of SEALSQ. &#34;Miraex closes the quantum interconnect layer of our Quantum Sovereign Vertical Stack, the one piece the industry cannot scale without, and we now own it outright, acquired and funded through our $200 million Quantum Fund. That gives us an end-to-end offering no competitor can match today: secure semiconductors, post-quantum cryptography, quantum networking, distributed quantum computing, and secure satellite communications, delivered from a single sovereign platform. We are taking that stack to governments, defense organizations, cloud providers, telecom operators, and critical infrastructure operators worldwide. This is how a research pipeline becomes a revenue pipeline, and it is why we remain confident in our growth trajectory and our Root-to-Qubit strategy."</p>  <p align="justify">At the heart of Miraex’s technology is its proprietary Thin Film Lithium Tantalate Photonic Integrated Circuit (TFLT PIC) platform, capable of efficiently converting quantum information between microwave frequencies—used by superconducting quantum processors, and optical frequencies used for long-distance quantum communications. This technology solves one of the key challenges in scaling practical quantum computing and quantum networking.</p>  <p align="justify">The commercial rollout initially targets four high-growth markets:</p>  <ul type="disc"><li style="text-align:justify;">Distributed Quantum Computing (DQC): Interconnecting separate quantum processors to dramatically increase computing capacity and enable modular quantum supercomputers.</li><li style="text-align:justify;">Quantum Networking: Building the optical backbone required for large-scale Quantum Key Distribution (QKD) and the future quantum internet.</li><li style="text-align:justify;">Quantum Sensing: Delivering ultra-sensitive photonic technologies for navigation without GPS, defense systems, critical infrastructure monitoring, and industrial sensing.</li><li style="text-align:justify;">Quantum Orbital Space Cloud (QOSC): Providing radiation-tolerant photonic technologies for secure satellite communications and space-based quantum networks.</li></ul>  <p align="justify">The integration of Miraex significantly strengthens SEALSQ’s long-term roadmap to create sovereign quantum infrastructure combining secure semiconductors, post-quantum cybersecurity, photonic quantum interconnects, trusted cloud computing, and secure space communications into one unified ecosystem.</p>  <p align="justify">The commercialization of Miraex’s technology also supports SEALSQ’s broader strategy of accelerating quantum adoption through strategic partnerships with hyperscalers, telecom operators, government agencies, defense organizations, research institutions, and industrial leaders seeking secure and scalable quantum infrastructure.</p>  <p align="justify">With the launch of Miraex’s commercial activities, SEALSQ reinforces Switzerland’s position as a global hub for quantum innovation while advancing its vision of building sovereign quantum technologies designed to secure the digital economy for decades to come.</p>  <p align="justify"><b>About SEALSQ:</b><br></br>SEALSQ is a leading innovator in Post-Quantum Technology hardware and software solutions. Our technology seamlessly integrates Semiconductors, PKI (Public Key Infrastructure), and Provisioning Services, with a strategic emphasis on developing state-of-the-art Quantum Resistant Cryptography and Semiconductors designed to address the urgent security challenges posed by quantum computing. As quantum computers advance, traditional cryptographic methods like RSA and Elliptic Curve Cryptography (ECC) are increasingly vulnerable.</p>  <p align="justify">SEALSQ is pioneering the development of Post-Quantum Semiconductors that provide robust, future-proof protection for sensitive data across a wide range of applications, including Multi-Factor Authentication tokens, Smart Energy, Medical and Healthcare Systems, Defense, IT Network Infrastructure, Automotive, and Industrial Automation and Control Systems. By embedding Post-Quantum Cryptography into our semiconductor solutions, SEALSQ ensures that organizations stay protected against quantum threats. Our products are engineered to safeguard critical systems, enhancing resilience and security across diverse industries.</p>  <p align="justify">For more information on our Post-Quantum Semiconductors and security solutions, please visit <a href="https://www.globenewswire.com/Tracker?data=Lnm7eHzgTIforl5oObswccw88XC4YW6DuJa-uqD-FTA-Vt2RJ-Ns5n2xZz_8G9tDlWTFHtH_qNGaLqgbWsuXRg==" rel="nofollow" target="_blank">www.sealsq.com</a>.</p>  <p align="justify"><b>Forward-Looking Statements</b><br></br>This communication expressly or implicitly contains certain forward-looking statements concerning SEALSQ Corp and its businesses. Forward-looking statements include statements regarding our business strategy, financial performance, results of operations, market data, events or developments that we expect or anticipate will occur in the future, as well as any other statements which are not historical facts. Although we believe that the expectations reflected in such forward-looking statements are reasonable, no assurance can be given that such expectations will prove to have been correct. These statements involve known and unknown risks and are based upon a number of assumptions and estimates which are inherently subject to significant uncertainties and contingencies, many of which are beyond our control. Actual results may differ materially from those expressed or implied by such forward-looking statements. Important factors that, in our view, could cause actual results to differ materially from those discussed in the forward-looking statements include SEALSQ&#39;s ability to continue beneficial transactions with material parties, including a limited number of significant customers; market demand and semiconductor industry conditions; and the risks discussed in SEALSQ&#39;s filings with the SEC. Risks and uncertainties are further described in reports filed by SEALSQ with the SEC.</p>  <p align="justify">SEALSQ Corp is providing this communication as of this date and does not undertake to update any forward-looking statements contained herein as a result of new information, future events or otherwise.</p> <table style="border-collapse: collapse; width:100%; border-collapse:collapse ;"><tr><td style="vertical-align: top ; ">SEALSQ Corp.<br></br>Carlos Moreira<br></br>Chairman &amp; CEO<br></br>Tel: +41 22 594 3000<br></br>info@sealsq.com</td><td style="vertical-align: top ; ">SEALSQ Investor Relations (US)<br></br>The Equity Group Inc.<br></br>Lena Cati<br></br>Tel: +1 212 836-9611 <br></br>Lena.cati@theequitygroup.com<br></br><br></br></td></tr></table> <p><br></br></p> <img alt="" class="__GNW8366DE3E__IMG" src="https://www.globenewswire.com/newsroom/ti?nf=OTgwMTYzMSM3NzUzMTM3IzIyNTQ4NTY="></img> <br></br><img alt="" src="https://ml.globenewswire.com/media/MzMzMTRkMjYtYzBlMC00MDM1LThjMmItODhmMWMwYmFmZWIyLTEyNjY0MDUtMjAyNi0wNy0zMS1lbg==/tiny/SEAL-Semiconductors.png" referrerpolicy="no-referrer-when-downgrade"></img><p><a href="https://www.globenewswire.com/NewsRoom/AttachmentNg/4071513d-3f7c-4a38-a055-8da38cfb60df"><img src="https://ml.globenewswire.com/media/4071513d-3f7c-4a38-a055-8da38cfb60df/small/seal-logo-png.png" border="0" width="150" height="69" alt="Primary Logo"></img></a></p>

SEALSQ has begun Miraex's commercial phase following the June 2, 2026 100% acquisition financed by its $200 million Quantum Fund, with over $65 million deployed to quantum investments. Miraex provides a Thin Film Lithium Tantalate PIC that bridges microwave and optical quantum networks, enabling a sovereign quantum stack. The rollout targets four markets—DQC, quantum networking, sensing, and secure space cloud—potentially expanding government and hyperscaler revenue.

News insight

SEALSQ Launches Commercial Phase of Miraex Quantum Photonics Technology Following Strategic Acquisition

AI summary

Sentiment rationale

Key facts

Corporate Developments