AXT, Inc. Announces Participation in UBS Global Technology and Services Conference

FREMONT, CA, May 18 (MARKET WIRE) --
AXT, Inc. (NASDAQ: AXTI), a leading manufacturer of compound
semiconductor substrates, today announced that it is participating in the
UBS Global Technology and Services Conference to be held at the Sheraton
New York Hotel & Towers in New York City on Wednesday, June 10, 2009.
Wilson W. Cheung, chief financial officer, and Robert G. Ochrym, vice
president, business development, will be available for one-on-one
meetings on June 10th. Interested investors may contact their UBS sales
representative to schedule a meeting.

About AXT, Inc.

AXT designs, develops, manufactures and distributes high-performance
compound and single element semiconductor substrates comprising gallium
arsenide (GaAs), indium phosphide (InP) and germanium (Ge) through its
manufacturing facilities in Beijing, China. In addition, AXT maintains its
sales, administration and customer service functions at its headquarters
in Fremont, California. The company's substrate products are used
primarily in lighting display applications, wireless communications, and
fiber optic communications. Its vertical gradient freeze (VGF) technique
for manufacturing semiconductor substrates provides significant benefits
over other methods and enabled AXT to become a leading manufacturer of
such substrates, particularly in optoelectronics applications. AXT has
manufacturing facilities in China and invests in five joint ventures
producing raw materials. For more information, see AXT's website at
http://www.axt.com.

Contacts:
Wilson W. Cheung
Chief Financial Officer
(510) 683-5900

Leslie Green
Green Communications Consulting, LLC
(650) 312-9060

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