Hsinchu, Taiwan, September 14, 2007 – ChipMOS TECHNOLOGIES (Bermuda) LTD. ("ChipMOS" or the "Company") (NASDAQ: IMOS) announced today that the Company and ChipMOS TECHNOLOGIES INC. ("ChipMOS Taiwan") have consummated the previously announced share exchange transaction (the "Transaction") in accordance with the Corporate Merger and Acquisition Law of Taiwan.

The Transaction was authorized by a resolution duly approved by ChipMOS Taiwan's shareholders in a meeting held on June 28, 2007 and obtained approval by the Investment Commission, Ministry of Economics Affairs of Taiwan, on August 31, 2007. The closing date of the Transaction was September 14, 2007. Each eight point four (8.4) common shares of ChipMOS Taiwan was exchanged for one (1) common share of ChipMOS. Any common shares of ChipMOS Taiwan which would have been exchangeable for less than one (1) common share of ChipMOS ("Fractional Shares") under the Transaction were purchased by ChipMOS at NT$ 24.76 per share in cash.

Under the Transaction, ChipMOS and ChipMOS Taiwan paid NT$ 53.0 million in cash to purchase Fractional Shares and shares of dissenting shareholders and ChipMOS issued 604,124 new common shares. Upon the closing of Transaction, ChipMOS Taiwan became a wholly-owned subsidiary of ChipMOS.

About ChipMOS TECHNOLOGIES (Bermuda) LTD.:

ChipMOS (http://www.chipmos.com/) is a leading independent provider of semiconductor testing and assembly services to customers in Taiwan, Japan, and the U.S. With advanced facilities in Hsinchu and Southern Taiwan Science Parks in Taiwan and Shanghai, ChipMOS and its subsidiaries provide testing and assembly services to a broad range of customers, including leading fabless semiconductor companies, integrated device manufacturers and independent semiconductor foundries.

Forward-Looking Statements

Certain statements contained in this announcement may be viewed as "forward-looking statements" within the meaning of Section 27A of the U.S. Securities Act of 1933, as amended, and Section 21E of the U.S. Securities Exchange Act of 1934, as amended. Such forward-looking statements involve known and unknown risks, uncertainties and other factors, which may cause the actual performance, financial condition or results of operations of the Company to be materially different from any future performance, financial condition or results of operations implied by such forward-looking statements. Further information regarding these risks, uncertainties and other factors is 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, R.O.C.
Dr. S.K. Chen
ChipMOS TECHNOLOGIES (Bermuda) LTD.
+886-6-507-7712
s.k._chen@chipmos.com

In the U.S.
David Pasquale
The Ruth Group
+1-646-536-7006
dpasquale@theruthgroup.com