Tokai Carbon Co., Ltd.TSE: 5301

Notice on Changes in the Management

· Issued by Tokai Carbon Co., Ltd.


December 15, 2025

Company name: Tokai Carbon Co., Ltd. Representative: Hajime Nagasaka, President & CEO (Stock Code: 5301 Prime Market, Tokyo Stock Exchange) Contact: Akira Yamada, General Manager,

General Affairs Department Telephone: +81-3-3746-5100

Notice on Changes in the Management

Tokai Carbon announce the following personnel changes.

(1) Changes in Member of the Board and Executive Officer

New Position

Name

Current Position

Member of the Board Executive Officer

President, Tokai Material Co., Ltd.

Takashi Masaki

Member of the Board Executive Officer

Chief Restructuring Officer

Executive Officer

Chief Executive Officer, Tokai COBEX

Hideo Shin

Executive Officer

Co-Chief Executive Officer, Tokai COBEX

Effective from January 1, 2026.

End of notice