AXT, Inc. to Present at 24th Annual Roth Conference

FREMONT, CA--(Marketwire - Feb 29, 2012) - AXT, Inc. (NASDAQ: AXTI), a leading manufacturer of compound semiconductor substrates, today announced that Morris S. Young, chief executive officer, will present at the 24^th Annual Roth Conference in Dana Point, Calif. on March 14^th, 2012 at 10:00 am PT. A webcast of the presentation will be available through the investor relations portion of the company'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, fiber optic communications and solar cell. 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. AXT has manufacturing facilities in China and invests in six joint ventures in China producing raw materials. For more information, see AXT's website at http://www.axt.com.