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Capital Alliance with Coincheck Group N.V. and the Execution of a Business Alliance Agreement with Coincheck, Inc.

―Forming au Coincheck Digital Assets to drive next-generation financial businesses leveraging blockchain technology―

KDDI CORPORATION

TOKYO, May 12, 2026―KDDI Corporation concluded a capital alliance agreement with Coincheck Group N.V. (Headquarters: Netherlands; CEO: Pascal St-Jean; hereinafter "Coincheck Group"), and concurrently entered into a business alliance agreement with Coincheck, Inc. (Headquarters: Shibuya-ku, Tokyo; Representative Director: Satoshi Hasuo; hereinafter "Coincheck"), a wholly owned subsidiary of Coincheck Group (hereinafter "Initiative").

Logo: KDDI
Logo: Coincheck Group N.V.
Logo: Coincheck, Inc.

In recent years, financial services leveraging blockchain technology have been increasingly deployed into society-primarily overseas-by connecting with existing financial services, and their presence as next generation financial infrastructure has continued to grow.
Against this backdrop, by combining KDDI's customer base of more than 30 million users and its financial assets, including banking and payment services, with Coincheck Group's global technological and business platform in the crypto asset domain and Coincheck's one of the largest customer bases among licensed cryptocurrency exchange operators in Japan, KDDI will further strengthen its framework for promoting next generation financial businesses and create new blockchain based financial services.

As part of the Initiative, KDDI, together with au Financial Holdings and Coincheck, has formed a joint venture company, "au Coincheck Digital Assets, Inc." (hereinafter the "New Company") [Jump to the applicable section1].
The New Company plans to launch a "digital asset wallet" [Jump to the applicable section2] as its core business in the summer of 2026.

Logo: au Coincheck Digital Assets, Inc.

In addition, KDDI and au Financial Holdings are considering, in the future, the transfer of KDDI's shareholdings in Coincheck Group and the New Company to au Financial Holdings, with the aim of integrating existing financial businesses and next generation financial businesses within the KDDI Group [Jump to the applicable section3].

(Reference)

■Regarding the Capital Alliance with Coincheck Group

KDDI plans to acquire common shares equivalent to 14.9% of the total outstanding ordinary shares (excluding treasury shares) through a third-party allotment of new shares conducted by Coincheck Group. Through the dispatch of a non-executive director to Coincheck Group and forming a partnership committee with Coincheck Group and Coincheck Inc. to create next-generation financial services, KDDI will strive to enhance Coincheck Group's corporate value and maximize collaboration synergies.

■au Coincheck Digital Assets Profile

  • Representative
    : Michihiko Kasai, Representative Director and President
  • Head office
    : Minato-ku, Tokyo
  • Date of joint venture establishment
    : December 4, 2025
  • Main business
    : Planning, development, and operation of digital asset wallets and digital financial services
  • Shareholding structure
    : KDDI (50.1%) Coincheck (40.0%) au Financial Holdings (9.9%)
  • URL
    : https://www.au-cc.com/ (in Japanese only)Open in a new window

■Coincheck Group Profile

  • Representative
    : Pascal St-Jean, Chief Executive Officer and Executive Director
  • Head office
    : Amsterdam, Netherlands
  • Date of establishment
    : February 2022
  • Main business
    : Holding company for operating companies in the crypto asset and blockchain sectors
  • URL
    : https://www.coincheckgroup.com/Open in a new window

■Coincheck, Inc. Profile

■au Financial Holdings Corporation Profile

  • Representative
    : Takashi Ishizuki, Representative Director and President
  • Head office
    : Minato-ku, Tokyo
  • Date of establishment
    : April 2019
  • Main business
    : Management of companies that can be subsidiaries under the Banking Act and the Insurance Business Act, other services incidental thereto, and businesses that can be operated by a bank holding company or an insurance holding company under the Banking Act and the Insurance Business Act.
  • URL
    : https://www.au-financial.com/ (in Japanese only)Open in a new window
  1. [1]In this press release, "forming" refers to the reorganization of our existing subsidiary (established in June 2025) into a joint venture, followed by new investments from three companies (implemented in December 2025), and the commencement of a new joint venture business.
  2. [2]The crypto asset wallet will be in the form of a "non-custodial wallet" (a wallet that allows users to manage their own private keys for digital assets on the blockchain), and is planned to be provided as a platform for utilizing on-chain related content, connections to services enabling digital asset transactions, and more.
  3. [3]The share transfer is predicated on the confirmation that there are no regulatory impediments and the completion of procedures in accordance with applicable laws and regulations. Depending on the outcome of the review, it may be canceled.
  • *The information contained in the articles is current at the time of publication.
    Products, service fees, service content and specifications, contact information, and other details are subject to change without notice.
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