Notice Regarding Submission of Corporate Governance Report

IBIDEN CO., LTD. (Head Office: Ogaki City, Gifu Prefecture, Representative Director and President: Koji Kawashima) (hereinafter "the Company") hereby announces that it has submitted its Corporate Governance Report to the Tokyo Stock Exchange today, Monday, June 29, 2026, and has also disclosed it on the Company's website: https://www.ibiden.com/ir/library/governance/.

【Contact】

Yasuhito Hirose
Division Manager of Corporate Planning Division
IBIDEN CO., LTD.

Tel：+81-584-81-2591

Fax：+81-584-81-3228