Strategic Partnership Agreement

To Develop the Quantum Computing Market in Japan and Asia-Pacific

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October 18, 2022

Tokyo, Japan, Cambridge, UK, Broomfield, Colorado, October 18th, 2022 — Mitsui & Co., Ltd (“Mitsui”) and Quantinuum have signed a strategic partnership agreement to collaborate in the delivery of quantum computing in Japan and the Asia-Pacific region.

Mitsui, which is committed to digital transformation, and Quantinuum, one of the world’s leading quantum computing companies, integrated across hardware and software, have entered this strategic partnership to develop quantum computing use cases, which are expected to drive significant business transformation and innovation in the future. 

Mitsui and Quantinuum will accelerate collaboration, cooperation, and development of new business models. They will jointly pursue quantum application development and provide value added services to organizations working across a variety of quantum computing domains, which is expected to be worth US$450B – US$850B worldwide by 2040.*

Yoshio Kometani, Representative Director, Executive Vice President and Chief Digital Information Officer of Mitsui & Co., Ltd. stated: “We are very pleased with the strategic partnership between Mitsui and Quantinuum. By combining Quantinuum's cutting-edge quantum computing expertise and diverse quantum talents with Mitsui's broad business platform and network, we will work together to provide new value to our customers and create new business value in a wide range of industrial fields.”

Ilyas Khan, Founder and CEO of Quantinuum stated: “The alliance between Mitsui and Quantinuum demonstrates our shared commitment to accelerating quantum computing across all applications and use cases in a diverse range of sectors, including chemistry, finance, and cybersecurity. Today’s announcement reinforces our belief in the global quantum leadership shown by corporations and governments in Japan, pioneered by corporate leaders like Mitsui.”

Details of the Strategic Partnership
  • Joint development of business use cases and business models utilizing quantum computing (pharmaceutical, materials development, energy, mobility, logistics, etc.)
  • Market development through dissemination and sharing of quantum computing knowledge
  • Introduction of Quantinuum's quantum computing solutions to the Japanese and Asia-Pacific markets
Collaboration areas and applications
  • Quantum computational chemistry (pharmaceutical, chemical, energy industry, etc.)
  • Quantum cybersecurity
  • Various optimization applications using quantum computers
  • Quantum natural language processing and artificial intelligence
Recent Achievements by Quantinuum
  • In December 2021, announced Quantum Origin, the world's first commercial cybersecurity product that uses a quantum computer to do something impossible on a classical machine.
  • In May 2022, launched InQuanto, a state-of-the-art quantum computational chemistry software platform using quantum computers. Quantinuum announced collaboration with Mitsui in the field.
  • In August 2022, Quantinuum succeeded in entangling two logical qubits in a fault-tolerant quantum circuit for the first time using real-time quantum error correction, an important step toward realizing a fully fault-tolerant quantum computer.
  • In September 2022, Quantinuum announced the achievement of QV8192, the world's highest quantum volume in the gated ion trap quantum computer System Model H1, Powered by Honeywell.
  • Also, TKET, Quantinuum's quantum compiler (a free open-source software development kit), exceeded 500,000 downloads in 2022.
For inquiries regarding this matter, please contact:
About Mitsui & Co., Ltd.

Location: 1-2-1 Otemachi, Chiyoda-ku, Tokyo

Established: 1947

Representative: Kenichi Hori, President and Representative Director

Mitsui & Co., Ltd. (8031: JP) is a global trading and investment company with a diversified business portfolio that spans approximately 63 countries in Asia, Europe, North, Central & South America, The Middle East, Africa and Oceania.

Mitsui has about 5,500 employees and deploys talent around the globe to identify, develop, and grow businesses in collaboration with a global network of trusted partners. Mitsui has built a strong and diverse core business portfolio covering the Mineral and Metal Resources, Energy, Machinery and Infrastructure, and Chemicals industries. 

Leveraging its strengths, Mitsui has further diversified beyond its core profit pillars to create multifaceted value in new areas, including innovative Energy Solutions, Healthcare & Nutrition and through a strategic focus on high-growth Asian markets. This strategy aims to derive growth opportunities by harnessing some of the world’s main mega-trends: sustainability, health & wellness, digitalization and the growing power of the consumer. 

Mitsui has a long heritage in Asia, where it has established a diverse and strategic portfolio of businesses and partners that gives it a strong differentiating edge, provides exceptional access for all global partners to the world’s fastest growing region and strengthens its international portfolio.   

For more information on Mitsui & Co’s businesses visit, https://www.mitsui.com/jp/en/index.html

About Quantinuum

Location: Cambridge, U.K., Broomfield, Colorado, U.S.A.

Established: December 2021 (through the merger of Honeywell Quantum Solutions (U.S.) and Cambridge Quantum Computing (U.K.))

Representative: Ilyas Khan, CEO; Tony Uttley, COO; Shuya Kekke, CEO & Representative Director, Japan

Quantinuum is one of the world’s largest integrated quantum computing companies, formed by the combination of Honeywell Quantum Solutions’ world-leading hardware and Cambridge Quantum’s class-leading middleware and applications. Science-led and enterprise-driven, Quantinuum accelerates quantum computing and the development of applications across chemistry, cybersecurity, finance, and optimization. Its focus is to create scalable and commercial quantum solutions to solve the world’s most pressing problems in fields such as energy, logistics, climate change, and health. The company employs over 480 individuals, including 350 scientists, at nine sites across the United States, Europe, and Japan.

Selected major customers (in Japan): Nippon Steel Corporation, JSR Corporation

www.quantinuum.com

Yoshio Kometani, Representative Director, Executive Vice President and Chief Digital Information Officer of Mitsui & Co., Ltd. and Tony Uttley, Chief Operation Officer of Quantinuum
Quantinuum System Model H-1 powered by Honeywell
About Quantinuum

Quantinuum, the world’s largest integrated quantum company, pioneers powerful quantum computers and advanced software solutions. Quantinuum’s technology drives breakthroughs in materials discovery, cybersecurity, and next-gen quantum AI. With over 500 employees, including 370+ scientists and engineers, Quantinuum leads the quantum computing revolution across continents. 

September 11, 2026
Quantinuum to Participate in the Piper Sandler 5th Annual Growth Frontiers Conference

BROOMFIELD, Colo., September 11, 2026 - Quantinuum Inc. (Nasdaq: QNT) (the “Company”), a leading quantum computing company, today announced that members of its management team will participate in the Piper Sandler 5th Annual Growth Frontiers Conference, taking place September 14–16, 2026, in Nashville, Tennessee.

Quantinuum will participate in a fireside chat and host one-on-one meetings with investors during the conference.

About Quantinuum

Quantinuum is a leading quantum computing company offering a full-stack platform designed to make quantum computing deployable in real-world environments. The company has commercially deployed multiple generations of trapped-ion based quantum systems built on the well-established QCCD architecture, which it has implemented with novel designs and capabilities to achieve the industry’s highest accuracy levels based on average two-qubit gate fidelity. Quantinuum has active engagements with market leaders across pharmaceuticals, material science, financial services, and government and industrial markets, as well as academic and research institutions globally.

The company has a global workforce of approximately 800 employees, including top scientists and researchers. Over 70% of its technology team holds PhDs or Master’s degrees. Quantinuum’s headquarters is in Broomfield, Colorado, with additional facilities across the United States, United Kingdom, Germany, Japan, Qatar, and Singapore.

Contacts

Investor & Media Contact

Shub Mukherjee - Investor Contact - investors@quantinuum.com

Aaron Sorenson - Media Contact - press@quantinuum.com

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September 8, 2026
Quantinuum Finalizes $100 Million CHIPS R&D Award with U.S. Department of Commerce to Advance Trapped-Ion Quantum Computer Manufacturing in the US
  • The federal funding supports critical R&D and U.S. quantum semiconductor manufacturing capabilities needed to scale fault-tolerant trapped-ion quantum computing.
  • Company partnering with GlobalFoundries to fabricate next-gen ion traps and control electronics, and Monarch Quantum to develop and manufacture reliable lasers and optical components.

Washington, D.C. – September 8, 2026 – Quantinuum (Nasdaq: QNT), a leading quantum computing company, today announced it has finalized an agreement with the U.S. Department of Commerce’s CHIPS Research and Development Office for $100 million in federal funding deployed through the CHIPS and Science Act. The award, which follows a letter of intent announced in May, supports R&D and U.S. quantum semiconductor manufacturing capabilities needed to deploy large-scale, fault-tolerant trapped-ion quantum computers.

Quantinuum, which was the only company with a trapped-ion based architecture to be awarded CHIPS R&D funding, develops the world’s most accurate commercial1 computers with industry-leading error correction fidelity.2  The company leverages established semiconductor manufacturing processes to help ensure reliability, repeatability, and scalability of the company’s current and future quantum computers.

“This award is a validation of Quantinuum’s leadership in trapped-ion quantum computing," said Dr. Rajeeb Hazra, President and CEO of Quantinuum. “Together with our domestic partners, we are building the technology and supply-chain foundation needed to scale fault-tolerant systems and strengthen America's leadership in this strategically important field.”        

The award will support R&D that the company expects to help strengthen and diversify its supply chain, adding onshore partners GlobalFoundries and Monarch Quantum. GlobalFoundries will be one of several of Quantinuum’s foundries enlisted to fabricate its next-generation ion traps and other electronics, specifically focused on using 300mm wafer technology; Monarch Quantum plans to develop and manufacture scalable, reliable lasers and optical components required for Quantinuum’s trapped-ion systems.

“As quantum computing moves closer to commercial scale, manufacturing will be critical to unlocking its full potential,” said Tim Breen, CEO of GlobalFoundries. “GlobalFoundries is proud to partner with Quantinuum to help scale their trapped-ion technology. By bringing our expertise in high-volume, differentiated semiconductor manufacturing, we're helping create a path to more scalable, reliable quantum hardware and advancing the next generation of American innovation.”

“The road to large-scale, trapped-ion quantum computers relies on moving away from complex, sprawling optical setups to scalable, reliable integrated photonics engines," said Dr. Timothy Day, CEO of Monarch Quantum. "We are honored to expand our partnership with Quantinuum to advance their hardware roadmap and to help strengthen U.S. leadership in quantum computing manufacturing and supply chain resilience.”

Together, these efforts are intended to reduce system complexity and improve component robustness, reliability, and reproducibility, ultimately supporting the continued scaling of trapped-ion quantum computers, while strengthening domestic capability across critical photonics and semiconductor manufacturing.

About Quantinuum

Quantinuum is a leading quantum computing company offering a full-stack platform designed to make quantum computing deployable in real-world environments. The company has commercially deployed multiple generations of trapped-ion based quantum systems built on the well-established QCCD architecture, which it has implemented with novel designs and capabilities to achieve the industry’s highest accuracy levels based on average two-qubit gate fidelity.3  Quantinuum has active engagements with market leaders across pharmaceuticals, material science, financial services, and government and industrial markets, as well as academic and research institutions globally. The company has a global workforce of over 800 employees, including top scientists and researchers. Quantinuum’s headquarters is in Broomfield, Colorado, with additional facilities across the United States, United Kingdom, Germany, Japan, Qatar, and Singapore. For more information, please visit www.quantinuum.com.

Cautionary Statement Concerning Forward-Looking Statements

This press release contains certain statements that may be deemed “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include all statements that are not historical facts. The words “anticipate,” “assume,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “future,” “will,” “seek,” “foreseeable,” the negative version of these words, or similar terms and phrases are intended to identify forward-looking statements. Such statements are based on certain assumptions and assessments made by our management in light of their experience and their perception of historical trends, current economic and industry conditions, expected future developments and other factors they believe to be appropriate. The forward-looking statements included in this release are also subject to a number of material risks and uncertainties, including but not limited to economic, competitive, governmental, and technological factors affecting our operations, markets, products, services and prices. New factors emerge from time to time, and it is not possible for Quantinuum to predict all such factors. For additional information on these and other risks that could affect Quantinuum’s forward-looking statements, see Quantinuum’s risk factors discussed in its filings with the U.S. Securities and Exchange Commission, including its Quarterly Report on Form 10-Q for the period ended June 30, 2026, as such risk factors may be updated from time to time. Any forward-looking statement speaks only as of the date on which it is made, and, except as required by law, Quantinuum does not undertake any obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

1 Based on physical two-qubit gate fidelity as of December 31, 2025, according to the 2025 Ransford et al. study.
2 As of February 25, 2026, according to the 2026 Dasu et al. study.
3 As of December 31, 2025.

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September 4, 2026
Quantinuum to Participate in the Bernstein 23rd Annual Pan-European Strategic Decisions Conference

BROOMFIELD, Colo., September 4, 2026 - Quantinuum Inc. (Nasdaq: QNT) (the “Company”), a leading quantum computing company, today announced that members of its management team will participate in the Bernstein 23rd Annual Pan-European Strategic Decisions Conference, taking place September 9–10, 2026, in London, United Kingdom.

Quantinuum will participate in a fireside chat and host one-on-one meetings with investors during the conference.

About Quantinuum

Quantinuum is a leading quantum computing company offering a full-stack platform designed to make quantum computing deployable in real-world environments. The company has commercially deployed multiple generations of trapped-ion based quantum systems built on the well-established QCCD architecture, which it has implemented with novel designs and capabilities to achieve the industry’s highest accuracy levels based on average two-qubit gate fidelity. Quantinuum has active engagements with market leaders across pharmaceuticals, material science, financial services, and government and industrial markets, as well as academic and research institutions globally.

The company has a global workforce of approximately 800 employees, including top scientists and researchers. Over 70% of its technology team holds PhDs or Master’s degrees. Quantinuum’s headquarters is in Broomfield, Colorado, with additional facilities across the United States, United Kingdom, Germany, Japan, Qatar, and Singapore.

Contacts

Investor & Media Contact

Shub Mukherjee - Investor Contact - investors@quantinuum.com

Aaron Sorenson - Media Contact - press@quantinuum.com

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