Proof-of-Concept Completed for Economic Security-Compliant Digital Asset Management Solution for Domestic Financial Institutions, Integrating Japanese Hardware Wallet "AndGo Wallet" with Fireblocks

Intertrade Co., Ltd. (Headquarters: Chuo-ku, Tokyo; TSE Standard: 3747; Representative Director: Kazuya Nishimoto; hereinafter "Intertrade"), Digital Asset Markets Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; Representative Director: Kazuya Nishimoto; hereinafter "Digital Asset Markets"), and AndGo Co., Ltd. (Headquarters: Taito-ku, Tokyo; Representative Director: Toshie Hara; hereinafter "AndGo") have completed a proof-of-concept for a digital asset management solution for financial institutions, addressing economic security concerns. This solution integrates the "AndGo Wallet," a Japanese-made hardware wallet with extensive usage history among domestic cryptocurrency exchanges, with the digital asset infrastructure "Fireblocks" provided by Fireblocks Pte. Ltd. (Headquarters: New York; CEO: Michael Shaulov; hereinafter "Fireblocks"), confirming its technical feasibility.

Overview of the Proof-of-Concept In this PoC, Fireblocks Key Link, a solution that integrates new or existing HSM-based key management solutions into the Fireblocks platform, allowing full utilization of Fireblocks' advanced wallet functions while maintaining existing infrastructure, was used. Technical verification was conducted to confirm the technical feasibility of achieving both in-house operation of digital asset key management infrastructure demanded by financial institutions and the utilization of global standard asset management functions, by integrating the AndGo Wallet, a Japanese-made hardware wallet with a rich track record of use by domestic companies.

Challenges Solved and Significance of AndGo Wallet's Fireblocks Integration By integrating Fireblocks with the AndGo Wallet, a hardware wallet with extensive domestic corporate track record, we provide a comprehensive solution to the following challenges faced by Japanese financial institutions.

Challenges faced by financial institutions

Operational challenges - Concerns regarding the location and administrator of key management when using global standard digital asset infrastructure - Difficulty in achieving both advanced asset management functions and self-custody of digital asset keys - Technical integration challenges between Japanese regulatory requirements and global standard digital asset infrastructure

Economic security challenges - Supply chain risks in critical financial infrastructure - Risk of relying on overseas systems for digital asset key management

Solutions and significance through AndGo Wallet's Fireblocks integration

- In-house operation of digital asset key management - Digital asset key management within the AndGo Wallet, physically owned by financial institutions - Establishment of technological sovereignty through a Japanese-made hardware wallet with extensive domestic corporate track record - Compatibility with global standard digital asset infrastructure utilization - Continuous use of Fireblocks' advanced policy control and workflows - Fusion of the Japanese-made AndGo Wallet and Fireblocks' digital asset infrastructure, which has an extensive track record worldwide - Realization of secure, global standard digital asset management with reduced foreign dependence - Response to economic security - Strengthening the autonomy of critical infrastructure and improving national-level financial security - Building international competitiveness through Japan-originated financial security technology - Establishing technological superiority in the economic security field

Verification Results of the Proof-of-Concept In this PoC, the following requirements using AndGo Wallet were confirmed as completed.

Integration Function - Interoperability between Fireblocks Key Link and AndGo Wallet - Generation, storage, and operation of private keys within AndGo Wallet - Normal connection to Fireblocks' digital asset network, which is the global standard for stablecoin settlement orchestration, cryptocurrency transactions, and overall digital asset ecosystem connectivity - Maintenance of compatibility with existing systems

Policy Control - Full inheritance of Fireblocks platform's governance workflow - Linkage with the policy engine via Fireblocks Key Link - Normal operation of the approval process

Security - Utilization of AndGo Wallet's security features - Establishment of secure communication via Fireblocks Key Link - Maintenance of security levels in the integrated environment

Economic Security Response - Securing technological sovereignty with domestic wallet technology - Reduction of overseas dependence risk - Ensuring autonomy as critical infrastructure

Future Developments Intertrade We will proceed with commercialization as a digital asset financial solution for financial institutions. To support financial institutions' digital asset businesses utilizing cryptocurrencies and stablecoins, we will deploy an integrated solution from technical integration to operational support.

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