For more information, contact:

Marna Shillman
Advanced Energy Industries, Inc.
970.407.6280
marna.shillman@aei.com
Dori Jones
MCA
650.968.8900

Advanced Energy Names Buck Kim General Manager of Greater China Customer Operations

New appointment highlights company’s commitment to China

FORT COLLINS, Colo., March 11, 2004—Advanced Energy Industries, Inc. (Nasdaq: AEIS) today announced that it recently named Buck Kim general manager of Greater China Customer Operations. Formerly with Varian and PRI Automation, Kim is chartered with building on AE’s existing customer base in Greater China’s semiconductor and thin-film transistor (TFT) markets, and will oversee all sales, service and marketing for the company’s power, flow, source and thermal product lines in China, Hong Kong and Taiwan. This includes AE’s Class 1000 cleanroom in Shanghai—built to provide service to local flow customers and complement the company’s state-of-the-art manufacturing facility in Shenzhen.

 Advanced Energy Industries, Inc. (Nasdaq: AEIS) today announced that it recently named Buck Kim general manager of Greater China Customer Operations. Formerly with Varian and PRI Automation, Kim is chartered with building on AE’s existing customer base in Greater China’s semiconductor and thin-film transistor (TFT) markets, and will oversee all sales, service and marketing for the company’s power, flow, source and thermal product lines in China, Hong Kong and Taiwan. This includes AE’s Class 1000 cleanroom in Shanghai—built to provide service to local flow customers and complement the company’s state-of-the-art manufacturing facility in Shenzhen.

AE opened its first customer operations office in China in 1999. Since then, AE has consistently provided first-tier regional customer service and support. Kim’s appointment continues AE’s strategic focus on customer operations in Greater China to better serve our existing customers and to establish new customer relationships in these important regions.

Commenting on the appointment, AE Chairman and CEO Douglas Schatz, noted, “With the appointment of Mr. Kim to head our Greater China operations, AE is again demonstrating its commitment to better serving its customers in these burgeoning semiconductor manufacturing regions. In addition, our state-of-the-art manufacturing facility in Shenzhen complements our customer focus in this important area.”

About Advanced Energy
Advanced Energy is a global leader in the development and support of technologies critical to high-technology manufacturing processes used in the production of semiconductors, flat panel displays, data storage products, compact discs, digital video discs, architectural glass, and other advanced product applications.

Leveraging a diverse product portfolio and technology leadership, AE creates solutions that maximize process impact, improve productivity and lower cost of ownership for its customers. This portfolio includes a comprehensive line of technology solutions in power, flow and thermal management and plasma and ion beam sources for original equipment manufacturers (OEMs) and end-users around the world.

AE operates in regional centers in North America, Asia and Europe and offers global sales and support through direct offices, representatives and distributors. Founded in 1981, AE is a publicly held company traded on Nasdaq National Market under the symbol AEIS. For more information, please visit our corporate Website: www.advanced-energy.com