ChipMOS REPORTS RECORD FEBRUARY 2022 REVENUE

HSINCHU,March 10,2022 /PRNewswire-FirstCall/ -- ChipMOS TECHNOLOGIES INC. ("ChipMOS"or the "Company") (Taiwan Stock Exchange:8150 and NASDAQ: IMOS),an industry leading provider of outsourced semiconductor assembly and test services ("OSAT"),today reported its unaudited consolidated revenue for the month of February 2022.All U.S. dollar figures cited in this press release are based on the exchange rate of NT$28.04 toUS$1.00 as ofFebruary 28,2022.

Revenue for the month of February 2022was NT$2,096.9million or US$74.8 million,an increaseof7.1%compared to February 2021 and a decreaseof7.7% compared to January 2022. The record high February 2022 revenue level reflects continued favorable supply and demand dynamics,and the benefit of stable higher utilization level across its DDIC high-end test platform.

Consolidated Monthly Revenues (Unaudited)

February 2022

January 2022

February 2021

MoM Change

YoY Change

Revenues

(NT$ million)

2,096.9

2,273.0

1,957.4

-7.7%

7.1%

Revenues

(US$ million)

74.8

81.1

69.8

-7.7%

7.1%

About ChipMOS TECHNOLOGIES INC.:

ChipMOS TECHNOLOGIES INC.("ChipMOS"or the "Company")(Taiwan Stock Exchange: 8150 and NASDAQ: IMOS) (https://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 provide assembly and test services to a broad range of customers,including leading fabless semiconductor companies,integrated device manufacturers and independent semiconductor foundries.

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,strategy,goals,plans or intentions. These statements may include financial projections and estimates and their underlying assumptions,statements regarding plans,objectives and expectations 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,due to various factors,including the ongoingimpact of COVID-19. 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 U.S. Securities and Exchange commission (the "SEC") and in the Company's other filings with the SEC.

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

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