HashKey Cloud collaborates with Quantum Solutions to achieve Japan's first DAT Staking partnership, leveraging the HashKey CaaS platform to assist listed companies in expanding their digital asset ecosystem BlockBeats News, November 26, Hong Kong, November 25, 2025- HashKey Cloud, a globally leading Web3 infrastructure service provider under HashKey Group, announced today that it has launched Japan's first DAT Staking partnership with Quantum Solutions Co., Ltd. (stock code: 2338), a company listed on the Tokyo Stock Exchange. This collaboration is led by HashKey Cloud and provides Quantum Solutions with professional and secure Ethereum (ETH) staking and re staking services through HashKey Group's latest one-stop service platform HashKey CaaS. It marks the first time a Japanese listed company has participated in Ethereum staking through a professional institution using the DAT framework and achieved stable appreciation of digital assets. This collaboration will leverage HashKey Cloud's technological advantages in institutional level staking infrastructure and risk management to help Quantum Solutions improve asset utilization efficiency, while exploring innovative scenarios such as re staking and DeFi revenue aggregation. As a pioneer in institutional level staking and encrypted asset management, HashKey Cloud leverages its own advantages to help the Japanese market explore new models of Web3 financial innovation. Leo Li, CEO of HashKey On Chain Business Group, said, "We are honored to work with Quantum Solutions to promote the digital transformation of asset allocation for listed companies. The acceptance and compliance maturity of blockchain technology in the Japanese market is exciting, and HashKey Cloud will be committed to helping enterprises steadily integrate into the Web3 ecosystem through secure, professional, and scalable institutional level products and services. '' Francis B. Zhou, CEO of Quantum Solutions, stated that through its partnership with HashKey Group, Quantum has become one of the first publicly traded companies in the world to launch institutional level ETH staking business. This move marks the official launch of our proactive income management strategy for ETH reserve assets. '' As one of the most mature regulatory frameworks and markets with huge market potential in Asia, Japan's on chain value has significantly increased in the past year, and the regulatory environment has also been continuously improved. The collaboration between HashKey Cloud and Quantum Solutions marks a crucial first step for HashKey Cloud in the Japanese market and provides a replicable model for local listed companies to participate in cryptocurrency compliance management. It is expected to promote the wider application of blockchain technology in the capital market. Regarding HashKey Cloud: HashKey Cloud， As a leading provider of global Web3 infrastructure and a core member of HashKey Group, we focus on providing professional, stable, and secure blockchain services to global customers. Since 2018, we have been deeply involved in the field of blockchain underlying technology, covering over 80 mainstream public chain staking services and continuously exploring Ethereum Layer2 and BTC staking. As Web3 transitions from basic technology to application, we are also simultaneously upgrading our product line, including a professional staking service (ETF Staking Pro) designed specifically for Ethereum ETF issuers, which fully meets customer needs and continues to provide top-level services to the global market.