ChipMOS Schedules Conference Call for Fourth Quarter and Full Year 2025 Financial Results

HSINCHU, Taiwan, Feb. 04, 2026 — ChipMOS TECHNOLOGIES INC. (“ChipMOS” or the “Company”) (Taiwan Stock Exchange: 8150 and Nasdaq: IMOS), a leading industry provider of outsourced semiconductor assembly and test services (“OSAT”), announced today that it will release fourth quarter and full year 2025 results and hold a conference call following the close of trading on the Taiwan Stock Exchange on Tuesday, February 24, 2026.

Investors and analysts are invited to participate via the dial-in telephone number listed below. A webcast and replay will be available on the Company’s website.

Date: Tuesday, February 24, 2026
Time: 3:00PM Taiwan (2:00AM New York)
Dial-In: +886-2-3396 1191
Password: 1048024 #

Webcast and Replay: https://www.chipmos.com/chinese/ir/info2.aspx
Replay: Begins approximately 2 hours after the live call concludes

Language: Mandarin

Note: A transcript will be made available on the Company’s website in English after the conference call to ensure transparency and assist in a better understanding of the Company’s financial results and operational environment.

Contacts:

In Taiwan
Jesse Huang
ChipMOS TECHNOLOGIES INC.
+886-6-5052388 ext. 7715
IR@chipmos.com
In the U.S.
David Pasquale
Global IR Partners
+1-914-337-8801
dpasquale@globalirpartners.com