AXT, Inc. to Present at the 12th Annual B. Riley & Co. Investor Conference

FREMONT, CA--(Marketwire - May 23, 2011) - AXT, Inc. (NASDAQ: AXTI), a leading manufacturer of compound semiconductor substrates, today announced that Raymond A. Low, chief financial officer, will present at the 12^th Annual B. Riley & Co. Investor Conference at the Lowes Santa Monica Beach Hotel in Santa Monica, CA, on Tuesday, May 24^th, 2011 and Wednesday, May 25^th, 2011.

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 five joint ventures in China producing raw materials. For more information, see AXT's website at http://www.axt.com.