Exhibit 99.1

Silicon Motion Announces Departure of Henry

Chen as a Member of the Board of Directors

Taipei, Taiwan, August 8, 2012 — Silicon Motion Technology Corporation (NasdaqGS: SIMO) (“Silicon Motion” or the “Company”) announced today that Henry Chen resigned from the Company’s Board of Directors, effective July 31, 2012. His replacement will be elected during the Company’s upcoming annual shareholders’ meeting.

“My time serving on Silicon Motion’s Board of Directors was a very rewarding experience and I am grateful for the opportunity,” said Henry Chen, Chairman of Mercuries and Associates, Ltd. “I am stepping down from Silicon Motion’s Board to focus on Mercuries’ growing and increasingly diverse business.”

Wallace Kou, the Company’s President, CEO and Board Director said, “Henry was an extremely valuable member of our Board and we thank him for all of his contributions over the years to the Company. Silicon Motion is now a much stronger company than when he joined, and he will be greatly missed. We would like to extend our best wishes to Henry in his future endeavors.”

About Silicon Motion:

We are a fabless semiconductor company that designs, develops and markets high performance, low-power semiconductor solutions for the multimedia consumer electronics market. We have two major product lines, mobile storage and mobile communications. Our mobile storage business is composed of microcontrollers used in NAND flash memory storage products such as flash memory cards, USB flash drives, SSDs, and embedded flash applications. Our mobile communications business is composed primarily of handset transceivers and mobile TV IC solutions.

Forward-Looking Statements:

This press release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, including without limitation, statements about Silicon Motion’s expected third quarter 2012 revenue, gross margin and operating expenses, all of which reflect management’s estimates based on information available at this time of this press release. While Silicon Motion believes these estimates to be meaningful, these amounts could differ materially from actual reported amounts for the second quarter. Forward-looking statements also include, without limitation, statements regarding trends in the multimedia consumer electronics market and our future results of operations, financial condition and business prospects. In some cases, you can identify forward-looking statements by terminology such as

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“may,” “will,” “should,” “expect,” “intend,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “potential,” “continue,” or the negative of these terms or other comparable terminology. Although such statements are based on our own information and information from other sources we believe to be reliable, you should not place undue reliance on them. These statements involve risks and uncertainties, and actual market trends or our actual results of operations, financial condition or business prospects may differ materially from those expressed or implied in these forward looking statements for a variety of reasons. Potential risks and uncertainties include, but are not limited to the unpredictable volume and timing of customer orders, which are not fixed by contract but vary on a purchase order basis; the loss of one or more key customers or the significant reduction, postponement, rescheduling or cancellation of orders from these customers; general economic conditions or conditions in the semiconductor or consumer electronics markets including any effects of the general global economic slowdown beginning in 2007; decreases in the overall average selling prices of our products; changes in the relative sales mix of our products; demand, adoption and sales of our New Growth Products; changes in our cost of finished goods; the availability, pricing, and timeliness of delivery of other components and raw materials used in our customers’ products; our customers’ sales outlook, purchasing patterns, and inventory adjustments based on consumer demands and general economic conditions, including the general global economic slowdown which began in 2007 as it effects the Company, its customers and consumers; our ability to successfully develop, introduce, and sell new or enhanced products in a timely manner; and the timing of new product announcements or introductions by us or by our competitors. For additional discussion of these risks and uncertainties and other factors, please see the documents we file from time to time with the Securities and Exchange Commission, including our Annual Report on Form 20-F filed on April 30, 2012, as amended on May 15, 2012. We assume no obligation to update any forward-looking statements, which apply only as of the date of this press release.

Investor Contact:	Investor Contact:
Jason Tsai	Selina Hsieh
Director of IR and Strategy	Investor Relations
Tel: +1 408 519 7259	Tel: +886 3 552 6888 x2311
Fax: +1 408 519 7101	Fax: +886 3 560 0336
E-mail: jtsai@siliconmotion.com	E-mail: ir@siliconmotion.com
Media Contact:
Sara Hsu
Project Manager
Tel: +886 2 2219 6688 x3509
Fax: +886 2 2219 6868
E-mail: sara.hsu@siliconmotion.com

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