Silicon Motion Confirms Quarterly Dividend

Silicon Motion Technology Corporation (NasdaqGS: SIMO) (“Silicon Motion” or the “Company”), a global leader in designing and marketing NAND flash controllers for solid state storage devices, confirms today its quarterly cash dividend. On October 27, 2025, the Board of Directors of the Company declared payment of an annual dividend of US$2.00 per ADS 1 , equivalent to US$0.50 per ordinary share, which will be paid in four quarterly installments of $0.50 per ADS, equivalent to US$0.125 per ordinary share. According to the previously announced record and payment dates, the next quarterly installment will be paid on August 20, 2026 to all shareholders of record on August 6, 2026. Our depository bank’s DR Books will be closed for issuance and cancellation on August 6, 2026. The declaration and payment of future cash dividends are subject to the Board's continuing determination that the payment of dividends is in the best interests of the Company’s shareholders and are in compliance with all laws and agreements of the Company applicable to the declaration and payment of cash dividends.

ABOUT SILICON MOTION: We are the global leader in supplying NAND flash controllers for solid state storage devices. We supply more SSD controllers than any other company in the world for servers, PCs and other client devices and are the leading merchant supplier of eMMC and UFS embedded storage controllers used in smartphones, IoT devices and other applications. We also supply customized high-performance hyperscale data center and specialized industrial and automotive SSD solutions. Our customers include most of the NAND flash vendors, storage device module makers and leading OEMs. For further information on Silicon Motion, visit us at www.siliconmotion.com .

FORWARD-LOOKING STATEMENTS: This news 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. In some cases, you can identify forward-looking statements by terminology such as “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 one or more customers; general economic conditions or conditions in the semiconductor or consumer electronics markets; the impact of inflation on our business and customer’s businesses and any effect this has on economic activity in the markets in which we operate; the functionalities and performance of our information technology (“IT”) systems, which are subject to cybersecurity threats and which support our critical operational activities, and any breaches of our IT systems or those of our customers, suppliers, partners and providers of third-party licensed technology; the effects on our business and our customer’s business taking into account the ongoing U.S.-China tariffs a...