AXT, Inc. to Present at the 2008 AmTech Research LED Technology Investment Conference

FREMONT, CA--(Marketwire - May 8, 2008) - AXT, Inc. (NASDAQ: AXTI), a leading manufacturer of compound semiconductor substrates, today announced that Robert G. Ochrym, Vice President of Business Development, will present at the American Technology Research 2008 LED Technology Investment Forum at the New York Palace Hotel in New York, NY on Thursday, May 15th, 2008 at 9:30 a.m. ET. Mr. Ochrym will address the requirements and outlook of gallium arsenide (GaAs) semi-conducting substrates for the LED industry. A copy of his presentation is available on AXT's website at www.axt.com.

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.

Contact Information: Contacts: Wilson W. Cheung Chief Financial Officer (510) 683-5900 Leslie Green Green Communications Consulting, LLC (650) 312-9060