[For further information contact: Brad Miller, Investor Relations Director Country/City Code 8862 Tel: 2656-8016 brad.miller@gigamedia.com.tw GigaMedia Announces First-Quarter 2013 Financial Results TAIPEI, Taiwan, May 21, 2013 – GigaMedia Limited (NASDAQ: GIGM) today announced its unaudited financial results for the first quarter of 2013. “We are off to a solid start in what is going to be a pivotal year,” stated] [For further information contact: Brad Miller, Investor Relations Director Country/City Code 8862 Tel: 2656-8016 brad.miller@gigamedia.com.tw GigaMedia’s Cloud Business Hits New Strategic Milestone: Expansion Into Government Sector GigaCloud endorsed by New Taipei City government in cloud program targeting 10,000 SMEs TAIPEI, Taiwan, May 21, 2013 – GigaMedia Limited (NASDAQ: GIGM) announced today that its GigaCloud business has been selected by the] [For further information contact: Brad Miller, Investor Relations Director Country/City Code 8862 Tel: 2656-8016 brad.miller@gigamedia.com.tw GigaMedia: Preliminary 1Q 2013 Results in Line with Guidance; 1Q Investor Call Rescheduled to May 21 TAIPEI, Taiwan, May 17, 2013 – GigaMedia Limited (NASDAQ: GIGM) (“GigaMedia”) today announced preliminary first-quarter 2013 consolidated financial results were in line with guidance and rescheduled the company’s first-quarter]

[NOTICE OF THE FOURTEENTH ANNUAL GENERAL MEETING OF SHAREHOLDERS GigaMedia Limited Incorporated in the Republic of Singapore Registration No.: 199905474H REGISTERED OFFICE 80 Robinson Road, #02-00 Singapore 068898 Company June 7, 2013 at 3 p.m. local time at 1404-5 Sunbeam Plaza, 1155 Canton Road, Kowloon, Hong Kong The 2013 annual general meeting of the shareholders of GigaMedia Limited (the “] [GIGAMEDIA LIMITED 8F, NO. 22, LANE 407, SECTION 2 TIDING BLVD. NEIHU DISTRICT, TAIPEI 114 TAIWAN R.O.C ELECTRONIC DELIVERY OF FUTURE PROXY MATERIALS If you would like to reduce the costs incurred by our company in mailing proxy materials, you can consent to receiving all future proxy statements, proxy cards and annual reports electronically via e-mail or the Internet. To] [Audited Financial Statements Under US GAAP GIGAMEDIA LIMITED CONSOLIDATED FINANCIAL STATEMENTS AND PUBLIC ACCOUNTING FIRM DECEMBER 31, 2011 AND 2012 AND FOR THE YEARS ENDED DECEMBER 31, 2010, 2011 AND 2012 GHP Horwath, P.C. Member Crowe Horwath International 1670 Broadway, Suite 3000 Denver, Colorado 80202 +1 303.831.5000 +1 303.831.5032 Fax www.GHPHorwath.com Board of Directors and Shareholders GigaMedia Limited Internal Control—Integrated] [GIGAMEDIA LIMITED Registration No. 199905474H (Incorporated in Singapore) AND SUBSIDIARIES CONSOLIDATED FINANCIAL STATEMENTS FOR THE FINANCIAL YEAR ENDED 31 DECEMBER 2012 TOGETHER WITH REPORTS OF DIRECTORS AND AUDITORS GIGAMEDIA LIMITED (Incorporated in Singapore) AND SUBSIDIARIES DIRECTORS’ REPORT FOR THE FINANCIAL YEAR ENDED 31 DECEMBER 2012 The directors present their report to the members together with the audited financial statements of] [For further information contact: Brad Miller, Investor Relations Director Country/City Code 8862 Tel: 2656-8016 brad.miller@gigamedia.com.tw GigaMedia to Report First-Quarter 2013 Financial Results on May 20 TAIPEI, Taiwan, May 10, 2013 – GigaMedia Limited (NASDAQ: GIGM) announced today that it will report its first-quarter 2013 financial results on Monday, May 20, 2013 after the market closes. Management will hold an investor]