Notice Regarding Change of Representative Director of Consolidated Subsidiary

Maeda Kosen Co., Ltd. (Head Office: Minato-ku, Tokyo, President: Naohiro Maeda), which manufactures and sells civil engineering and construction materials and various non-woven fabrics, hereby announces that its consolidated subsidiary, Maeda Kosen Sanshi Co., Ltd., has decided on the following change of Representative Director.

Details of Change (Effective June 30, 2026) Maeda Kosen Sanshi Co., Ltd. Name New Position Previous Position Shigenobu Akiyama Representative Director and President Vice President Akihiro Tachibana (Retiring) Representative Director and President

*Shigenobu Akiyama will continue in his current positions as Managing Executive Officer, General Manager of the Infrastructure Business Sales Department, and Director of our company.

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