Diodes Incorporated Added to Russell 3000 Index

    WESTLAKE VILLAGE, Calif.--July 10, 2003--Diodes Incorporated , a leading manufacturer and supplier of high quality discrete semiconductor products, primarily to the communications, computing, industrial, consumer electronics and automotive markets, today announced that Diodes stock has been added to the Russell 3000 Index.
    The annual reconstitution of Russell's U.S. equity indexes captures the 3,000 largest U.S. stocks as of May 31, ranking them by market capitalization to create the broad market Russell 3000(R) Index, which represents approximately 98% of the investable U.S. equity market. The largest 1,000 companies in the ranking comprise the large cap Russell 1000(R) Index while the remaining 2,000 companies comprise the small cap Russell 2000(R) Index. Index membership is effective July 1 and will remain in place for one year.
    C.H. Chen, President and CEO of Diodes Incorporated, said, "We are very pleased to become a member of the Russell 3000 Index. This achievement reflects Diodes' strong financial performance and our success in building long-term shareholder value. Being added to the Russell will increase our visibility in the investment community."

    About Russell

    Russell, a global leader in multi-manager investment services, provides investment products and services in more than 35 countries. Russell manages more than $70 billion in assets and advises clients worldwide representing more than $1.6 trillion. Founded in 1936, Russell is a subsidiary of Northwestern Mutual and is headquartered in Tacoma, Wash., with additional offices in New York, Toronto, London, Paris, Singapore, Sydney, Auckland and Tokyo.

    About Diodes Incorporated

    Diodes Incorporated is a leading manufacturer and supplier of high-quality discrete semiconductor products, primarily to the communications, computing, industrial, consumer electronics and automotive markets. The Company operates three Far East subsidiaries, Diodes-China (QS-9000 and ISO-14001 certified) in Shanghai, Diodes-Taiwan (ISO-9000 certified) in Taipei, and Diodes-Hong Kong. Diodes-China's manufacturing focus is on subminiature surface-mount devices destined for wireless devices, notebook, flat panel display, digital camera, mobile handset, set-top box, DC to DC conversion, and automotive applications, among others. Diodes-Taiwan is our Asia-Pacific sales, logistics and distribution center. Diodes-Hong Kong covers sales, warehouse and logistics functions. The Company's 5" wafer foundry, Diodes-FabTech (QS-9000 certified), specializes in Schottky products and is located just outside Kansas City, Missouri. The Company's ISO-9000 corporate sales, marketing, engineering and logistics headquarters is located in Southern California. For further information, including SEC filings, visit the Company's website at http://www.diodes.com.

    Safe Harbor Statement Under the Private Securities Litigation Reform Act of 1995: Any statements set forth above that are not historical facts are forward-looking statements that involve risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. Potential risks and uncertainties include, but are not limited to, such factors as fluctuations in product demand, the introduction of new products, the Company's ability to maintain customer and vendor relationships, technological advancements, impact of competitive products and pricing, growth in targeted markets, risks of foreign operations, and other information detailed from time to time in the Company's filings with the United States Securities and Exchange Commission.

    Recent news releases, annual reports, and SEC filings are available at the Company's website: http://www.diodes.com. Written requests may be sent directly to the Company, or they may be e-mailed to: diodes-fin@diodes.com.