Notice of Establishment of Joint Venture 'AI Data Partners Inc.'

We hereby announce that we have concluded a joint venture agreement with abc Inc. (TSE Standard: 8783), ReYuu Japan Inc. (TSE Standard: 9425), Image One Co., Ltd. (TSE Standard: 2667), FD Inc., and Birdman Inc. (TSE Growth: 7063). This agreement establishes "AI Data Partners Inc." (hereinafter referred to as the "Joint Venture"), a jointly funded company that will lead the development and operation of high-performance data centers specialized for AI in Japan.

1. Reason for Establishing the Joint Venture

As announced in the "Notice Regarding the Conclusion of a Basic Agreement (MOU) among Five Companies for the Development and Operation of an AI-Specialized High-Performance Data Center" dated April 24, 2026, we have been preparing for the establishment of a joint venture aimed at building a development and operation structure for AI-specialized high-performance data centers in Japan.

Furthermore, as announced in the "Notice Regarding the Additional Participation of Birdman Inc. in the AI-Specialized High-Performance Data Center Development Project (Transition to a Six-Company Structure)" dated May 18, 2026, Birdman Inc. joined the project, transitioning the initiative into an alliance of six companies, including five listed companies.

Subsequently, the six companies have held discussions regarding specific establishment conditions, investment ratios, board composition, rights and obligations among shareholders, and operating rules post-establishment for the Joint Venture.

Recently, having discussed the positioning and role sharing of each company's business, procedures such as the conclusion of the joint venture agreement for the establishment of the jointly funded "AI Data Partners Inc." by the six companies have been completed, leading to the formal decision to establish the company.

By integrating the strengths of the six-company alliance in "financing, land acquisition, power procurement, AI solutions, maintenance and operation, and branding," the Joint Venture will realize the provision of a next-generation, highly competitive high-performance data center serving as an AI foundation. This offering will be a vertically integrated, one-stop service covering everything from design to equipment procurement, operation, and equipment life cycle management (reuse).

2. Social Significance and Strengths of This Business

Currently, along with the rapid expansion of the generative AI and big data markets, the global demand for high-performance data center infrastructure capable of supporting massive computational processing is surging. Particularly in Japan, securing advanced computing resources domestically has become a pressing social issue from the perspectives of economic security and the promotion of DX (Digital Transformation).

The new Joint Venture will merge the strengths of the six-company alliance in "financing, land acquisition, power procurement, AI solutions, maintenance and operation, and branding." By combining these respective strengths, the company aims to build a structure that cohesively promotes everything from design to equipment procurement, operation, and equipment life cycle management.

3. Overview of the Joint Venture

Name AI Data Partners Inc.

Location 4-9-17 Akasaka, Minato-ku, Tokyo

Title and Name of Representative Tomoki Katada, Representative Director

Business Description 1. Planning, design, development, construction, ownership, management, and maintenance/operation of AI-specialized high-performance data centers. 2. Data center operation business and related sales or leasing of hardware or software. 3. Sales, leasing, installation, maintenance, and consulting services for equipment related to the utilization and generation of renewable energy in data center operations. 4. Investment in, holding, buying and selling, management, and operation of investment equity in special purpose companies. 5. Acquisition, holding, disposal, and management of securities. 6. All businesses incidental and related to the preceding items.

Capital 30 million yen (at establishment)

Date of Establishment Late May to June 2026 (planned)

Major Shareholders and Shareholding Ratios abc Inc.: 30% ReYuu Japan Inc.: 30% Image One Co., Ltd.: 10% Wintest Inc.: 10% FD Inc.: 10% Birdman Inc.: 10%

Board Composition Directors: Representative Director: Tomoki Katada (Executive Vice President, abc Inc.) Director: Kenichi Shigezumi (Executive Officer, ReYuu Japan Inc.) Director: Ayumu Kawakura (Representative Director, Image One Co., Ltd.) Director: Masayasu Higuchi (Senior Managing Director, Wintest Inc.) Director: Masashi Suzuki (Representative Director, FD Inc.) Director: Motohiro Yoshikawa (Representative Director, Birdman Inc.) Auditors: - Teruaki Yabuta (Director and Audit & Supervisory Committee Member, ReYuu Japan Inc.; Representative Director, JFI Inc.) - Yoshiyuki Tsuda (Member, abc Inc.; Director, Image One Co., Ltd.)

Relationship between Listed Companies and the Said Company Capital Relationship: Our Company 10%