WESTLAKE VILLAGE, Calif.--(BUSINESS WIRE)--March 16, 2004--Diodes Incorporated (Nasdaq:DIOD), a leading manufacturer and supplier of high-quality discrete semiconductors, today increases guidance for the first quarter of 2004.

The Company now expects that revenue for the quarter will increase 3-5% on a sequential basis from the record revenue of $39.2 million reported in the fourth quarter of 2003. In addition, the Company anticipates that its gross profit margin will expand by 50-100 basis points sequentially from 29.5% in the fourth quarter of 2003 due to the Company's ongoing efforts to shift its production towards higher margin lines.

C.H. Chen, President and CEO of Diodes Incorporated, said, "Based on strong global demand, improved book-to-bill ratio, and the success of new products, we now expect another quarter of record sales and improved margins and earnings in the first quarter of 2004. Our strategic initiatives to position Diodes as an innovator for discrete technologies and to target high-volume applications in consumer electronics and mobile computing continue to serve us well."

Carl Wertz, the Company's Chief Financial Officer, will be presenting at the B. Riley & Co. Fifth Annual Investor Conference in Las Vegas at 8:50 a.m. PST on Wednesday, March 17, 2004. The conference will highlight more than 70 companies from different industries. The presentation will be available to all interested parties at the Investors section of Diodes' web site, www.diodes.com.

Diodes will host a conference call at 8 a.m. PST on Thursday, April 29, 2004 to discuss first quarter 2004 results, which will be released earlier that day at 6 a.m.

The Company's discussion of first quarter financial and operating performance is based on preliminary information and subject to change based on actual financial and operating results for the period.

About Diodes Incorporated

Diodes Incorporated (Nasdaq:DIOD) 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-9001:2000 corporate sales, marketing, engineering and logistics headquarters is located in Southern California. For further information, including SEC filings, visit the Company's website at 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.

    CONTACT: Diodes Incorporated
             Carl Wertz, 805-446-4800
             carl_wertz@diodes.com
             or
             CCG Investor Relations
             Crocker Coulson, 818-789-0100
             crocker.coulson@ccgir.com

    SOURCE: Diodes Incorporated