HashKey Cloud partners with Quantum Solutions to achieve Japan's first DAT Staking collaboration, leveraging the HashKey CaaS platform to help a public listed company expand its digital asset ecosystem

November 26, in Hong Kong. On November 25, 2025 - HashKey Group's globally leading Web3 infrastructure service provider, HashKey Cloud, announced today a partnership with Quantum Solutions Co., Ltd., a publicly listed company on the Tokyo Stock Exchange (Stock Code: 2338), to launch Japan's first DAT Staking collaboration. Led by HashKey Cloud and facilitated through HashKey Group's latest all-in-one service platform, HashKey CaaS, this partnership will provide Quantum Solutions with professional and secure Ethereum (ETH) staking and restaking services. This marks the first time a Japanese listed company has participated in Ethereum staking via a DAT framework through a professional institution, achieving robust value appreciation of digital assets. This partnership will leverage HashKey Cloud's technological advantages in institutional-grade staking infrastructure and risk management to help Quantum Solutions enhance asset utilization efficiency while exploring scenarios such as restaking and DeFi yield aggregation. As a pioneer in institutional staking and crypto asset management, HashKey Cloud, with its own strengths, is driving the exploration of new models of Web3 financial innovation in the Japanese market. Leo Li, CEO of HashKey On-Chain Business Unit, said, "We are honored to collaborate with Quantum Solutions to jointly drive the digital transformation of listed company asset allocation. The enthusiasm of the Japanese market for blockchain technology and compliance maturity is inspiring. HashKey Cloud is committed to assisting enterprises in steadily integrating into the Web3 ecosystem through secure, professional, and scalable institutional-grade products and services." Francis B. Zhou, CEO of Quantum Solutions, said, "Through our partnership with HashKey Group, Quantum has become one of the world's first publicly traded companies to engage in institutional-grade ETH staking business. This marks the official launch of our active yield management strategy for ETH reserve assets." As one of the most mature Asian regulatory frameworks and with tremendous market potential, Japan is one of the largest encrypted markets in Asia. Its on-chain value has seen significant growth in the past year, and the regulatory environment continues to improve. This collaboration between HashKey Cloud and Quantum Solutions signifies a critical first step for HashKey Cloud in the Japanese market, providing a replicable model for local listed companies to participate in compliant management of encrypted assets and is expected to drive broader applications of blockchain technology in the capital markets. About HashKey Cloud: HashKey Cloud, as a leading provider of global Web3 infrastructure and a core member of HashKey Group, focuses on providing global customers with professional, reliable, and secure blockchain services. Since 2018, we have been deeply involved in the underlying technology of blockchain, covering Staking services for 80+ mainstream public chains and continuously exploring Ethereum Layer2 and BTC Staking. As Web3 transitions from foundational technology to applications, we are also upgrading our product line in sync, including professional staking services designed for Ethereum ETF issuers (ETF Staking Pro), meeting customer needs comprehensively and continuously providing top-notch services to the global market.