<div id="readability-page-1"><article><div>, /PRNewswire-FirstCall/ -- ChipMOS TECHNOLOGIES INC. (&#34;ChipMOS&#34; or the &#34;Company&#34;) (Taiwan Stock Exchange: 8150 and Nasdaq: IMOS), an industry leading provider of outsourced semiconductor assembly and test services (&#34;OSAT&#34;), today reported its unaudited consolidated revenue for the month of November 2025. All U.S. dollar figures cited in this press release are based on the exchange rate of NT$31.37 to US$1.00 as of November 28, 2025.Revenue for the month of November 2025 was NT$2,140.3 million or US$68.2 million, representing a decrease of 1.7% from October 2025, and an increase of 16.7% from November 2024. The Company's continued strong revenue growth in November was led by industry-wide robust demand for memory products in support of computing and datacenters, combined with a favorable product mix. The slight decline compared to the prior month reflects fewer operating days in November compared to October.<div><table><tbody><tr><td colspan="6" rowspan="1">Consolidated Monthly Revenues (Unaudited)</td></tr><tr><td colspan="1" rowspan="1"> </td><td colspan="1" rowspan="1">November 2025</td><td colspan="1" rowspan="1">October 2025</td><td colspan="1" rowspan="1">November 2024</td><td colspan="1" rowspan="1">MoM Change</td><td colspan="1" rowspan="1">YoY Change</td></tr><tr><td colspan="1" rowspan="1">Revenues (NT$ million)</td><td colspan="1" rowspan="1">2,140.3</td><td colspan="1" rowspan="1">2,177.4</td><td colspan="1" rowspan="1">1,834.6</td><td colspan="1" rowspan="1">-1.7 %</td><td colspan="1" rowspan="1">16.7 %</td></tr><tr><td colspan="1" rowspan="1">Revenues (US$ million)</td><td colspan="1" rowspan="1">68.2</td><td colspan="1" rowspan="1">69.4</td><td colspan="1" rowspan="1">58.5</td><td colspan="1" rowspan="1">-1.7 %</td><td colspan="1" rowspan="1">16.7 %</td></tr></tbody></table></div>About ChipMOS TECHNOLOGIES INC.:ChipMOS TECHNOLOGIES INC. (&#34;ChipMOS&#34; or the &#34;Company&#34;) (Taiwan Stock Exchange: 8150 and Nasdaq: IMOS) (www.chipmos.com) is an industry leading provider of outsourced semiconductor assembly and test services. With advanced facilities in Hsinchu Science Park, Hsinchu Industrial Park and Southern Taiwan Science Park in Taiwan, ChipMOS is known for its track record of excellence and history of innovation. The Company provides end-to-end assembly and test services to leading fabless semiconductor companies, integrated device manufacturers and independent semiconductor foundries serving virtually all end markets worldwide. Forward-Looking Statements:This press release may contain certain forward-looking statements. These forward-looking statements may be identified by words such as 'believes,' 'expects,' 'anticipates,' 'projects,' 'intends,' 'should,' 'seeks,' 'estimates,' 'future' or similar expressions or by discussion of, among other things, strategies, goals, plans or intentions. These statements may include financial projections and estimates and their underlying assumptions, statements regarding current macroeconomic conditions, including the impacts of high inflation, foreign exchange rates and risk of recession, on demand for our products, consumer confidence and financial markets generally; changes in trade regulations, policies, and agreements and the imposition of tariffs that affect our products or operations, including potential new tariffs that may be imposed and our ability to mitigate with respect to future operations, products and services, and statements regarding future performance. Actual results may differ materially in the future from those reflected in forward-looking statements contained in this document, based on a number of important factors and risks, which are more specifically identified in the Company's most recent U.S. Securities and Exchange Commission (the &#34;SEC&#34;) filings. Further information regarding these risks, uncertainties and other factors are included in the Company's most recent Annual Report on Form 20-F filed with the SEC and in its other filings with the SEC.Contacts:<div><table><tbody><tr><td colspan="1" rowspan="1">In TaiwanJesse HuangChipMOS TECHNOLOGIES INC.+886-6-5052388 ext. 7715IR@chipmos.com </td><td colspan="1" rowspan="1">In the U.S.David PasqualeGlobal IR Partners+1-914-337-8801dpasquale@globalirpartners.com </td></tr></tbody></table></div>SOURCE ChipMOS TECHNOLOGIES INC.</div></article></div>

IMOS

ChipMOS Technologies reported a 16.7% year-over-year increase in November 2025 revenue, reaching NT$2,140.3 million (US$68.2 million). Despite a 1.7% decrease from October 2025, the growth was driven by strong demand for memory products and a favorable product mix. The decline from October is attributed to fewer operating days. ChipMOS is a leading provider of semiconductor assembly and test services, with facilities in Taiwan.

ChipMOS REPORTS 16.7% YoY INCREASE IN NOVEMBER 2025 REVENUE | IMOS Stock News