Notice of Changes to Reportable Segments

Macnica Holdings, Inc. (“the Company”) hereby announces that, at the meeting of the Board of Directors held today, it has resolved to change its reportable segments effective from the fiscal year ending March 31, 2027, as set forth below. 1. Reason for the Change The Group has previously reported two segments, namely the “ICs, Electronic Devices and Other Business” segment and the “Cybersecurity a