SEALSQ and Lattice Collaborate to Deliver Unified TPM-FPGA Architecture for Post-Quantum Security

Post-QuantumCryptography TPM-Enabled Secure RoT PoC Showcase at Embedded World, in Nuremberg,in March 2026

Geneva, Switzerland, February 18, 2026 - SEALSQ Corp(NASDAQ: LAES) ("SEALSQ" or "Company"), a company thatfocuses on developing and selling Semiconductors, PKI, and Post-Quantumtechnology hardware and software products, today announced its collaboration with Lattice Semiconductor (NASDAQ: LSCC) tointegrate TPM-based advanced post-quantum security capabilities into select LatticeFPGA solutions. This collaboration addresses the rapidly growing need forquantum-resistant technologies in mission-critical applications for edgecomputing and other high-stakes environments.

"This collaboration perfectlyillustrates SEALSQ's strategy of extending our leadership in post-quantumsecurity beyond direct OEM sales," said Bernard Vian, General Manager ofSEALSQ. "We continue to deliver ready-to-deploy and custom secure chipsdirectly to customers, while also leveraging our deep expertise in post-quantumhardware and flexible semiconductor design capabilities to empower strategicpartners across the industry. Collaborating with Lattice allows us to bring ourcutting-edge, tailored PQC protection to their FPGA platforms, accelerating thesecure transition to quantum-resistant systems for a broad range ofhigh-performance applications."

"Lattice is committed toadvancing security for our customers as the industry prepares for apost-quantum future. By combining SEALSQ's QS7001 and QVault TPM based post‑quantum capabilities with Lattice's long-running leadership insecure, power‑efficient FPGA platforms, we furtherexpand our quantum-capable portfolio of solutions that give our customers avariety of ways to achieve quantum-resilience in their designs with strongassurance and performance," said Eric Sivertson, Vice President ofSecurity Business at Lattice Semiconductor.

A Proof-of-Concept of the FPGA-TPMsolution integrates a Lattice secure FPGA with SEALSQ's PQC based QS7001andQVault TPM secure Root-of-Trust (RoT). The PoC demonstrates the technicalfeasibility of embedding TPM-based post-quantum cryptography directly into FPGAarchitectures and will serve as a foundational reference design for enhancededge security.

By combining Lattice’s expertise inlow power programmable FPGAs and recognized leadership in security withSEALSQ's specialized post-quantum capabilities, this collaboration demonstratestechnical interoperability and supports broader industry efforts toward next‑generationquantum‑secure hardware.

This initiative aligns with thelaunch of the Year of Quantum Security 2026 (YQS2026) in Washington, D.C., wherestakeholders from government, industry, and academia converged around a sharedconclusion: quantum security is no longer theoretical, it is now aninfrastructure and governance imperative. Both companies support industryefforts to advance post‑quantum standards recommended by organizations such asNIST.

See Live Demonstrations at EmbeddedWorld 2026

The new post-quantum security PoCdemo will be on display at Embedded World 2026 from March 10-12, 2026 inNuremberg, Germany. Visit Lattice’s exhibit at Hall 4, Booth #528 to experiencethe unified FPGA-TPM architecture delivering a trusted root of resilience andcrypto updatability at the edge, and hear more from Eric Sivertson during hisEmbedded World conference on the topic (Trusted Resilience Edge: UnifiedFPGA-TPM for Post-Quantum Cryptography RED & Cyber Resilience Act) onTuesday March 10^th at 5PM.

About SEALSQ:

SEALSQis a leading innovator in Post-Quantum Technology hardware and softwaresolutions. Our technology seamlessly integrates Semiconductors, PKI (Public KeyInfrastructure), and Provisioning Services, with a strategic emphasis ondeveloping state-of-the-art Quantum Resistant Cryptography and Semiconductorsdesigned to address the urgent security challenges posed by quantum computing.As quantum computers advance, traditional cryptographic methods like RSA andElliptic Curve Cryptography (ECC) are increasingly vulnerable.

SEALSQis pioneering the development of Post-Quantum Semiconductors that providerobust, future-proof protection for sensitive data across a wide range ofapplications, 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-QuantumCryptography into our semiconductor solutions, SEALSQ ensures thatorganizations stay protected against quantum threats. Our products areengineered to safeguard critical systems, enhancing resilience and securityacross diverse industries.

Formore information on our Post-Quantum Semiconductors and security solutions,please visit www.sealsq.com.

Forward-Looking Statements

This communication expressly orimplicitly contains certain forward-looking statements concerning SEALSQ Corpand its businesses. Forward-looking statements include statements regarding ourbusiness 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 webelieve that the expectations reflected in such forward-looking statements arereasonable, no assurance can be given that such expectations will prove to havebeen correct. These statements involve known and unknown risks and are basedupon a number of assumptions and estimates which are inherently subject tosignificant uncertainties and contingencies, many of which are beyond ourcontrol. Actual results may differ materially from those expressed or impliedby such forward-looking statements. Important factors that, in our view, couldcause actual results to differ materially from those discussed in theforward-looking statements include SEALSQ's ability to continue beneficialtransactions with material parties, including a limited number of significantcustomers; market demand and semiconductor industry conditions; and the risksdiscussed in SEALSQ's filings with the SEC. Risks and uncertainties are furtherdescribed in reports filed by SEALSQ with the SEC.

SEALSQ Corp is providing thiscommunication as of this date and does not undertake to update anyforward-looking statements contained herein as a result of new information,future events or otherwise.