ChipMOS TECHNOLOGIES INC. ("ChipMOS" or the "Company") (NASDAQ:IMOS), an industry leading provider of outsourced semiconductor assembly and test services ("OSAT"), today reported its unaudited consolidated revenue for the month of September 2025 and for the third quarter ended September 30, 2025. All U.S. dollar figures cited in this press release are based on the exchange rate of NT$30.46 to US$1.00 as of September 30, 2025.

Revenue for the third quarter of 2025 was NT$6,143.7 million or US$201.7 million, representing an increase of 7.1% from the second quarter of 2025, and an increase of 1.2% from the third quarter of 2024.

Revenue for the month of September 2025 was NT$2,087.4 million or US$68.5 million, representing a decrease of 0.1% from August 2025, and an increase of 10.5% from September 2024. The Company's double-digit September revenue growth year-over-year was driven by stronger customer allocations in growth markets, and the memory industry upcycle with favorable pricing and higher volumes. While tariffs have not had a material impact year-to-date, the Company continues to monitor developments and will adjust as needed to best support customers.