Company Achieves US$0.17 Per Share; Reduces Net-Debt-to-Equity Ratio to 39.2%

Hsinchu, Taiwan, November 16, 2011 - ChipMOS TECHNOLOGIES (Bermuda) LTD. ("ChipMOS" or the "Company") (Nasdaq: IMOS) today reported unaudited consolidated financial results for the third quarter ended September 30, 2011. All U.S. dollar figures in this release are based on the exchange rate of NT$30.45 against US$1.00 as of September 30, 2011.

Net revenue on a US GAAP basis for the third quarter of 2011 was NT$4,461.5 million or US$146.5 million, a decrease of 4.5% from NT$4,671.0 million or US$153.4 million in the second quarter of 2011 and a decrease of 5.4% from NT$4,717.2 million or US$154.9 million for the third quarter 2010. Results are inline with the Company's original guidance for revenue to be flat-to-down in the single digits as compared to the second quarter of 2011.

Net income on a US GAAP basis for the third quarter of 2011 was NT$139.8 million or US$4.6 million, and NT$5.19 or US$0.17 per basic and NT$5.11 or US$0.17 per diluted common share, compared to net loss of NT$4.1 million or US$0.1 million, and NT$0.15 or US$0.01 per basic and diluted common share, for the second quarter of 2011 and a net income of NT$51.0 million or US$1.6 million, and NT$1.99 or US$0.06 per basic and NT$1.55 or US$0.05 per diluted common share for the third quarter of 2010.

The unaudited consolidated financial results of ChipMOS for the third quarter ended September 30, 2011 included the financial results of ChipMOS TECHNOLOGIES INC., ChipMOS U.S.A., Inc., MODERN MIND TECHNOLOGY LIMITED and its wholly-owned subsidiary ChipMOS TECHNOLOGIES (Shanghai) LTD., and ThaiLin Semiconductor Corp.

S.J. Cheng, Chairman and Chief Executive Officer of ChipMOS, said, "Results for the third quarter were inline with our prior guidance and reflect weakness across the broader OSAT industry. Diversification in our customer base helped mitigate the impact of demand declines, as did our prior investments in chip-on-glass and bumping services. Importantly, we exited the third quarter with improving demand in certain segments of our business, led by the continued demand for testing, assembly and bumping services for semiconductors designed into mobile touch devices, including tablet computers and smartphones. Given our substantially improved business fundamentals, strong competitive position and positive long-term outlook, we announced our Board's approval last month of a share repurchase program of up to US$10 million of the Company's common shares. The share repurchase underscores our continued commitment to our shareholders."

S.K. Chen, Chief Financial Officer of ChipMOS, said, "We are pleased that, in Q3 2011, despite the decline in revenue, we grew our net income and continued to strengthen our financial position, which will also allow us to have a significant amount of leverage when revenue growth returns. Our blended utilization was 73% in the third quarter, as we continued to meet customer capacity demands, while focusing on our objective of regaining greater profitability. Further expense control and efficiency optimization of our operations helped us reduce total operating expenses by approximately 12% in the third quarter to US$8.8 million from US$9.9 million in the second quarter. Our capital expenditures increased slightly to US$18.6 million in Q3 2011 compared to US$16.1 million in Q2 2011, as we continue to support areas that will drive our future growth and profitability, including LCDD and 12-inch wafer gold bumping capacity. Of note, we reduced our total debt by US$20.3 million in the third quarter of 2011. This follows our US$109.6 million reduction in total debt in the first half of 2011. We exited the quarter with a strong balance of cash and cash equivalents at US$188.5 million and reduced our net debt to equity ratio to 39.2% as of September 30, 2011 from 52.7% in Q2."

Fourth Quarter 2011 Outlook

Looking into the fourth quarter, the Company currently expects revenue to be flat to up or down in the single digits, as compared to the third quarter of 2011, with gross margin on a consolidated basis in the range of 4.0% to 9.0%.

Mr. Cheng continued, "We entered the fourth quarter with a cautious near term outlook consistent with the broader semiconductor industry. Overall, we expect relative demand stability in our DRAM assembly and LCD driver business will partially offset anticipated weakness in memory testing and mixed-signal segments. We also expect to benefit from revenue contribution from our 12-inch wafer gold bumping and LCDD turnkey business, which started in late Q3 2011. Importantly, we remain confident in our business prospects over the longer-term and in our proven ability to work with customers to navigate near term market fluctuations."

Investor Conference Call / Webcast Details
ChipMOS will review detailed third quarter 2011 results on Wednesday, November 16, 2011 at 8:00AM ET (9:00PM, November 16, Taiwan time). 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 380823.

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.

Use of Non-GAAP Information
Readers are reminded that non-GAAP numbers contained in this announcement are merely a supplement to, and not a replacement for, the GAAP financial measures. These non-GAAP numbers should be read in conjunction with the US GAAP financial measures. It should be noted as well that the non-GAAP information provided in this announcement may be different from the non-GAAP information provided by other companies.

Contacts:
In Taiwan
Dr. S.K. Chen
ChipMOS TECHNOLOGIES (Bermuda) LTD.
+886-6-507-7712
s.k._chen@chipmos.com

In the U.S.
Chesha Gibbons
Director of Investor Relations
+1-415-730-1307
Chesha_gibbons@chipmos.com

David Pasquale
Global IR Partners
+1-914-337-8801
dpasquale@globalirpartners.com