Announced details
Crypto-asset trading, crypto-asset and blockchain-related services, embedded finance
コインチェック株式会社 and メルコイン entered into a business alliance agreement on 5 August 2025 concerning collaboration to expand Japan’s crypto-asset market. The companies have now begun collaborating on services through the Mercari,Inc. app.
株式会社メルコイン: 6-10-1 Roppongi, Minato-ku, Tokyo; Representative Director Nakamura Keita (中村 奎太); planning and development of services relating to crypto assets and blockchain; an affiliate of Mercari,Inc. Crypto-asset exchange business registration number: Kanto Local Finance Bureau Director No. 00030; registration date: 17 June 2022. Mercari,Inc. is listed as the parent company of メルコイン.
メルコイン: crypto-asset exchange business registration number, Kanto Local Finance Bureau Director No. 00030; registration date: 17 June 2022. コインチェック: crypto-asset exchange business registration, Kanto Local Finance Bureau Director No. 00014. Expiry: Not disclosed.
株式会社メルコイン: Roppongi Hills Mori Tower, 6-10-1 Roppongi, Minato-ku, Tokyo. コインチェック株式会社: 27th Floor, SHIBUYA Side, Shibuya Sakura Stage, 1-4 Sakuragaoka-cho, Shibuya-ku, Tokyo.
In this announcement the company addresses none of Contract Value / Offering price / Impact on Business Performance.
AppTweak (data cooperation; domestic crypto-asset trading apps; period covered: January 2019 to December 2025). Also refers to コインチェック’s press release dated 26 February 2026.
| Item | Details |
|---|---|
| Names of Products / Services Covered | Coincheck, Coincheck CaaS, Mercari,Inc.’s crypto-asset trading service |
| Counterparty | Mercoin, Inc., Mercari,Inc. |
| Counterparty overview | 株式会社メルコイン: 6-10-1 Roppongi, Minato-ku, Tokyo; Representative Director Nakamura Keita (中村 奎太); planning and development of services relating to crypto assets and blockchain; an affiliate of Mercari,Inc. Crypto-asset exchange business registration number: Kanto Local Finance Bureau Director No. 00030; registration date: 17 June 2022. Mercari,Inc. is listed as the parent company of メルコイン. |
| Relationship with the Company | コインチェック株式会社 and メルコイン entered into a business alliance agreement on 5 August 2025 concerning collaboration to expand Japan’s crypto-asset market. The companies have now begun collaborating on services through the Mercari,Inc. app. |
| Contract Date | 5 August 2025 (business alliance agreement) |
| Launch date | 8 June 2026 (actual; applications to use the service through the Mercari,Inc. app will become available in stages) |
| Applicable area | Crypto-asset trading, crypto-asset and blockchain-related services, embedded finance |
| Registration number and expiry date | メルコイン: crypto-asset exchange business registration number, Kanto Local Finance Bureau Director No. 00030; registration date: 17 June 2022. コインチェック: crypto-asset exchange business registration, Kanto Local Finance Bureau Director No. 00014. Expiry: Not disclosed. |
| Location | 株式会社メルコイン: Roppongi Hills Mori Tower, 6-10-1 Roppongi, Minato-ku, Tokyo. コインチェック株式会社: 27th Floor, SHIBUYA Side, Shibuya Sakura Stage, 1-4 Sakuragaoka-cho, Shibuya-ku, Tokyo. |
| Source | AppTweak (data cooperation; domestic crypto-asset trading apps; period covered: January 2019 to December 2025). Also refers to コインチェック’s press release dated 26 February 2026. |
Items this document does not state (8)
These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.
The reasons the company gives
The company's own explanation, not something inferred from the numbers.The initiative was launched based on the two companies’ view that providing Mercari,Inc. customers with a convenient crypto-asset trading service at an earlier stage would contribute to the expansion of Japan’s crypto-asset market.