MEC COMPANY LTD.

Announcement Regarding t he Achievement of “B” Score in the CDP 2025 Climate Change Assessment

Notice on Issuance of a Sponsored Research Report

International Electronics Circuit Exhibition (Shenzhen) (MEC ZHUHAI / Dec.3-Dec 5)

Transfer of Operating Officers

Consolidated Financial Results for the Nine Months Ended September 30, 2025(Under Japanese GAAP)