ALERT: ChipMOS DECLARES US$0.14 CASH DIVIDEND

HSINCHU, August 13, 2014 /PRNewswire-FirstCall/ — ChipMOS TECHNOLOGIES (Bermuda) LTD. (“ChipMOS” or the “Company”) (Nasdaq: IMOS), an industry leading provider of outsourced semiconductor assembly and test services (“OSAT”), today declared an annual cash dividend of US$0.14 per share payable on October 30, 2014 to all common shareholders of record at the close of business on October 16, 2014.

S.J. Cheng, Chairman and Chief Executive Officer of ChipMOS, said, “This represents our third annual dividend. Our latest dividend declaration is consistent with the Company’s capital allocation strategy and is a direct reflection of the Company’s financial strength. We continue to develop and expand on our existing business, invest in longer-term strategic growth opportunities, and build shareholder value.”

About ChipMOS TECHNOLOGIES (Bermuda) LTD.:

ChipMOS TECHNOLOGIES (Bermuda) LTD. (“ChipMOS” or the “Company”) (NASDAQ: IMOS) (http://www.chipmos.com) is an industry leading provider of semiconductor assembly and testing services. 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. The Company’s majority-owned subsidiary, ChipMOS TECHNOLOGIES INC. (“ChipMOS Taiwan”), is listed on the Taiwan Stock Exchange under Stock Ticker 8150.

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

Dr. S.K. Chen

ChipMOS TECHNOLOGIES (Bermuda) LTD.

+886-6-507-7712

s.k._chen@chipmos.com

In the U.S.

David Pasquale

Global IR Partners

+1-914-337-8801

dpasquale@globalirpartners.com