Notice Concerning the Closure of Local Subsidiaries in Thailand（March 31, 2026）

To whom it may concern,

March 31, 2026

Name of Company ASANUMA CORPORATION Stock Exchange Listing Prime Market of the Tokyo

Stock Exchange

Stock Code 1852

Contact Marika Asanuma, Executive Officer,

General Manager of Corporate Communications Division asanuma_ir@asanuma.co.jp

The Company hereby announces that, at a Board of Directors' meeting held today, it resolved to close two local subsidiaries in the Kingdom of Thailand that were established in 2021 .

1. Date of the Suspension of Business April 30, 2026

   The Company expects it will take about one to two years to complete the closure of these local subsidiaries due to liquidation procedures.

2. Reason for Closure

   These two local subsidiaries have been carrying out work to reinforce civil engineering and building structures using carbon fiber in the Kingdom of Thailand. However, the Company has decided to close these two local subsidiaries as part of efforts to streamline its operations.

3. Overview of the Local Subsidiaries Local Subsidiary 1

   (1) Name	Thai Asanuma Holdings Co., Ltd.
   (2) Address	2034/70 15th Floor, Italthai Tower, New Petchburi Road, Bangkapi, Huaikwang, Bangkok 10310
   (3) Representative	Shin Hamanaka (the Company's employee)
   (4) Business description	Holding shares in operating companies and sales of construction materials
   (5) Capital	4,000,000 baht
   (6) Established	June 2021

   Local Subsidiary 2

   (1) Name	Thai Asanuma Construction Co., Ltd.
   (2) Address	2034/70 15th Floor, Italthai Tower, New Petchburi Road, Bangkapi, Huaikwang, Bangkok 10310
   (3) Representative	Shin Hamanaka (the Company's employee)
   (4) Business description	General construction, and repair and reinforcement of building structures
   (5) Capital	5,000,000 baht
   (6) Established	July 2021

4. Future Outlook

The Company expects the impact from the closure of these two local subsidiaries on consolidated financial results to be minor.

End of Document