Fourth Quarter 2015 Outlook

The Company expects revenue for the fourth quarter of 2015 will decrease approximately 4% to 9%, as compared to the third quarter of 2015, and as compared to the typical 10% seasonal decline for the same period. The Company expects gross margin on a consolidated basis to be in the range of approximately 14% to 18% for the fourth quarter of 2015. The Company anticipates depreciation and amortization expenses for the fourth quarter of 2015 to be approximately US$24 million. Operating expenses are expected to be approximately 9% to 11% of revenues in the fourth quarter of 2015 primarily resulting from the lower revenue. The Company expects CapEx spending to be approximately US$29 million in the fourth quarter of 2015, with CapEx spending for the full year 2015 to be less than US$125 million. The total number of the Company's outstanding common shares at the end of the fourth quarter of 2015 is expected to be approximately 27 million.

Investor Conference Call / Webcast Details

ChipMOS will review detailed third quarter 2015 results on Thursday, November 12, 2015 at 7:00 PM Eastern Time (8:00 AM Taiwan time, Friday, November 13, 2015). The conference call-in number is +1-201-689-8562. A live webcast of the conference call will be available at ChipMOS' website at http://www.chipmos.com. The playback is scheduled to be available in 2 hours after the conclusion of the conference call and will be accessible by dialing +1-858-384-5517, with confirmation ID number 13621917.

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 test services. With advanced facilities in Hsinchu and Southern Taiwan Science Parks in Taiwan and Shanghai, China, ChipMOS and its subsidiaries provide assembly and test 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 Taiwan, is listed on TWSE 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 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.

About Non-Generally Accepted Accounting Principles ("Non-GAAP") Financial Measures

To supplement the consolidated financial results presented in accordance with International Financial Reporting Standards ("IFRS"), ChipMOS uses non-GAAP free cash flow, non-GAAP earnings before interest, taxes, depreciation and amortization ("EBITDA") and non-GAAP net debt to equity ratio in this press release. The non-GAAP free cash flow represents operating profit plus depreciation, amortization and interest income and less capital expenditures, non-controlling interests, interest expenses, income tax expense and dividend. The non-GAAP EBITDA represents operating profit plus depreciation and amortization. The non-GAAP net debt to equity ratio represents the ratio of net debt, the sum of debt less cash and cash equivalent, divided by equity attributable to equity holders of the Company. These non-GAAP financial measures may not be comparable to similarly titled measures presented by other companies. Other companies may calculate similarly titled measures differently.

The presentation of non-GAAP financial measures is not intended to be considered in isolation or as a substitute for the financial information prepared and presented in accordance with IFRS.

ChipMOS considers the use of non-GAAP free cash flow, non-GAAP EBITDA and non-GAAP net debt to equity ratio provides useful information to management to manage the Company's business and make financial and operational decisions and also to the investors to understand and evaluate the Company's business and operating performance. For more information on these non-GAAP financial measures, please refer to the table captioned "Reconciliations of Non-GAAP Measures to the Nearest Comparable GAAP Measures" in this press release.