[Title of each class Name of each exchange on which registered Ordinary shares, par value US$0.01 per share* American Depositary Shares, each representing four ordinary shares Nasdaq Global Select Market * Not for trading, but only in connection with the listing on the Nasdaq Global Select Market of American Depositary Shares, or ADSs, each representing four ordinary shares. None None] [Subsidiaries of Silicon Motion Technology Corporation Lake Tahoe Investment Corporation, a corporation organized under the laws of the Cayman Islands (“Lake Tahoe”). Silicon Motion Korea Ltd., a corporation organized under the laws of Korea (‘SMK”, a wholly-owned subsidiary of Lake Tahoe). FCI, Inc., a corporation organized under the laws of Korea (“FCI”, a wholly-owned subsidiary of Lake Tahoe). Silicon Motion,] [I, Wallace C. Kou, certify that: 1. I have reviewed this annual report on Form 20-F of Silicon Motion Technology Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements] [I, Riyadh Lai, certify that: 1. I have reviewed this annual report on Form 20-F of Silicon Motion Technology Corporation; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were] [Wallace C. Kou, President & Chief Executive Officer Riyadh Lai, Chief Financial Officer EX-13.1 5 d306662dex131.htm CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER] [CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deloitte & Touche Taipei, Taiwan Republic of China April 25, 2012 EX-23.1 6 d306662dex231.htm CONSENT OF DELOITTE & TOUCHE]