Coincheck Announces Free Usage Fee for Asset Lock Service for Corporate Clients

Coincheck, Inc. (headquartered in Shibuya, Tokyo; CEO: Satoshi Hasuo; hereinafter "the Company"), a group company of Monex Group, Inc. listed on the Tokyo Prime Market, and Coincheck Group N.V. listed on NASDAQ in the U.S., which operates the cryptocurrency exchange service "Coincheck," announces the decision to make the usage fee for "Coincheck Asset Lock" free of charge. This transfer restriction service, offered through the corporate and institutional investor-focused service "Coincheck Prime," supports exemption from year-end valuation taxation on held cryptocurrencies under certain conditions.

Additionally, the application process for Coincheck Asset Lock has been fully digitized, eliminating the previous requirement for designated paper forms and physical seals.

Coincheck Asset Lock Service Overview

Coincheck Asset Lock is a service that supports exemption from year-end valuation taxation when specific requirements are met, by imposing transfer restrictions on cryptocurrencies.

The Company will handle all necessary procedures for application, including setting transfer restrictions on cryptocurrencies and submitting notifications to the Japan Virtual and Crypto Assets Exchange Association (JVCEA) (※1).

Eligibility Requirements

- Eligible Assets: BTC, ETH, XRP, FNCT (each with holdings exceeding JPY 10 million) - Lock-up Period: Minimum of one year - Usage Fee: Free of charge (※2) - Early Release: Not permitted in principle

This service is ideal for clients in the following situations:

- Planning to hold cryptocurrencies for one year or longer - Facing annual tax burdens on unrealized gains from cryptocurrencies - Actively considering concrete measures for year-end valuation tax compliance

For tax-related matters concerning the use of Coincheck Asset Lock, please consult your tax advisor.

For details on how to apply, please refer to the Coincheck Help Center: "Details and Application Process for Coincheck Asset Lock."

The number of corporate accounts at the Company has exceeded 10,000 (※3), and Coincheck Prime is being increasingly adopted by a growing number of clients. The Company will continue to enhance the usability of Coincheck Prime services and strive to become a trusted partner contributing to the sustainable growth of corporate value for more clients.

※1 When using Coincheck Asset Lock, procedures based on the self-regulatory rules and guidelines of the Japan Virtual and Crypto Assets Exchange Association (JVCEA) are required.

※2 Effective for applications submitted on or after June 4, 2026.

※3 Refer to the Company's press release dated March 12, 2026: "Corporate Accounts on Coincheck Surpass 10,000 – Growing Adoption by Businesses Amid Expansion of Crypto Treasury Initiatives."

About Coincheck Prime

Coincheck Prime is a service supporting cryptocurrency trading and custody for corporations and institutional investors. It offers large-volume OTC trading, Coincheck Staking for regular rewards, Coincheck Asset Lock for long-term holding, and custody services. Dedicated account managers support corporations and institutional investors who maintain a deposit balance of over JPY 10 million or wish to conduct cryptocurrency transactions of equivalent value.

Coincheck Prime Website: https://corporate.coincheck.com/prime

Corporate Client Inquiry: https://corporate.coincheck.com/prime/contact

About Coincheck, Inc.

Coincheck, Inc. operates under the mission of "Bringing New Value Exchange Closer to Everyone," offering the individual-focused cryptocurrency trading service "Coincheck," which leads in Japan with the highest number of active users* and seven consecutive years as the top-downloaded app**. The Company also provides "Coincheck Prime" for corporate and institutional clients, the embedded trading solution "Coincheck CaaS," and "Coincheck Partners" to support enterprise blockchain initiatives. As a group company of Monex Group, Inc. (Tokyo Prime Market) and Coincheck Group N.V. (NASDAQ, U.S.), it delivers secure, transparent, and reliable platforms for new value exchange through Bitcoin, Ethereum, and blockchain technology.

* Reference: Company press release dated February 26, 2026: "Coincheck App Wins 'Best Crypto Asset App' at APAC Awards 2025."

** Target: Domestic cryptocurrency trading apps. Period: January 2019 – December 2025. Data provided by AppTweak.

Corporate Name: Coincheck, Inc.

Head Office: Shibuya Sakura Stage SHIBUYA Side, 27F, 1-4 Sakuragaokacho, Shibuya-ku, Tokyo 150-6227, Japan

Established: August 28, 2012

CEO: Satoshi Hasuo

Cryptocurrency Exchange Registration: Kanto Finance Bureau, License No. 00014

Corporate Website: https://corporate.coincheck.com/

Important Notices Regarding IEO, Cryptocurrencies, and Cryptocurrency Transactions

- When applying for IEO participation, please carefully review the whitepaper and the Company's disclosed information. - Cryptocurrencies differ from Japanese yen or foreign currencies. - If you lose your private key, you will be unable to use your cryptocurrency holdings, and their value may be lost. - Cryptocurrencies may lose value due to failures in the transfer record system. - Cryptocurrency prices are volatile, and losses may occur. - Cryptocurrencies can only be used as payment with the recipient's consent. - Please fully understand the transaction details and conduct trades at your own risk.

For other important matters and transaction details, please refer to the provided documents such as the "Coincheck Cryptocurrency Transaction Guide," "Coincheck Terms of Use," "Coincheck Accumulation Trading Guide," and "Coincheck Accumulation Terms of Use."

Inquiries: https://coincheck.com/ja/info/help_contact

Fees: https://coincheck.com/ja/info/fee