For more information, contact:

Jim Donaldson Advanced Energy Industries, Inc. 970.407.6374

Marna Shillman Advanced Energy Industries, Inc. 970.407.6280 marna.shillman@aei.com

Fort Collins, Colorado (November 1, 2000)—Advanced Energy Industries, Inc. (AE) announces the opening of a new representative office, Advanced Energy China, Ltd. The China representative office is directly responsible for market development, sales, and technical support in China and Hong Kong. AE China began operations on October 15, 2000. Its location in Shenzhen offers easy access for AE's customers both in China and Hong Kong.

In announcing the new relationship, Christopher E. Near, Director of Asia Operations, said, "China is undoubtedly one of the next key growth areas for the semiconductor and thin film industries." Mr. Near also noted, "We must continue to lead the way in establishing centers of excellence where we can fully support our customers with technical integration of subsystems solutions."

Advanced Energy China, Ltd. is located at No. 6007 Shennan Road, Anhui Building, Room 910, Shenzhen, China 518040. Their telephone number is 86.755.3867986, and their fax number is 86.775.3867984.

Advanced Energy is a global leader in the development, marketing, and support of integrated technology solutions that are central in the manufacture of semiconductors, data storage products, and flat panel displays as well as other mission-critical power applications. Original equipment manufacturers and end- users around the world depend on AE products when plasma-based technology plays a vital role in their manufacturing process. AE offers a comprehensive suite of key subsystems for vacuum process systems including power conversion and control solutions, process monitoring and machine control tools, ion-beam sources, dynamic temperature control and measurement products, and plasma abatement technologies. AE technology solutions are sold and supported globally by direct offices, representatives, and distributors. Founded in 1981, AE is a publicly held company traded on Nasdaq under the symbol AEIS.