[NOTICE OF THE TWELFTH ANNUAL GENERAL MEETING OF SHAREHOLDERS GigaMedia Limited REGISTERED OFFICE Company June 29, 2011 at 3:00 p.m. local time at The Centrium, 60 Wyndham Street, Central Hong Kong, in the Board Room on the Twenty-second Floor The 2011 annual general meeting of the shareholders of GigaMedia Limited (the “ AS ORDINARY AND SPECIAL BUSINESS ORDINARY RESOLUTIONS: To] [GigaMedia Limited 8 Cross Street #11-00 PWC Building Singapore 048424 THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS This Proxy, when properly executed and returned in a timely manner, will be voted at the Annual General Meeting and any adjournments thereof in the manner described herein. If no contrary indication is made, the proxy will be voted] [GIGAMEDIA LIMITED GHP Horwath, P.C. Board of Directors and Shareholders Internal Control—Integrated Framework We have audited the accompanying consolidated balance sheets of GigaMedia Limited and subsidiaries (the “Company”) as of December 31, 2010 and 2009, and the related consolidated statements of operations, comprehensive income (loss), equity, and cash flows for each of the three years in the period ended December] [GIGAMEDIA LIMITED CONSOLIDATED FINANCIAL STATEMENTS GIGAMEDIA LIMITED DIRECTORS’ REPORT The directors present their report to the members together with the audited financial statements of GigaMedia Limited (the “Company”) and subsidiaries (collectively the “Group”) for the financial year ended 31 December 2010 and the balance sheet of the Company as at 31 December 2010. Directors The directors of the Company in]

[For further information contact: Brad Miller, Investor Relations Director Country/City Code 8862 Tel: 2656-8016 brad.miller@gigamedia.com.tw GigaMedia First-Quarter 2011 Revenues Up 17% to $10.4 Million TAIPEI, Taiwan, May 26, 2011 — GigaMedia Limited (NASDAQ: GIGM) today announced first-quarter 2011 revenues of $10.4 million, up 17 percent quarter-over-quarter. 1 First-quarter 2011 core net loss was $975 thousand; core basic and fully-diluted loss] [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 2011 Financial Results on May 25 TAIPEI, Taiwan, May 13, 2011 — GigaMedia Limited (NASDAQ: GIGM) announced today that it will report its first-quarter 2011 financial results on Wednesday, May 25, 2011 after the market closes. Management will hold an investor]

[Press Release For further information contact: Brad Miller, Investor Relations Director GigaMedia Announces US$11 Million TAIPEI, Taiwan, May 23, 2011 — GigaMedia Limited (NASDAQ: GIGM) announced today that its board of directors has approved a US$11 million share repurchase program of the company’s common stock. GigaMedia expects to implement this share repurchase program in a manner consistent with market conditions]