AXT, Inc. Announces Upcoming Conference Participation

FREMONT, CA--(Marketwire - May 21, 2012) - AXT, Inc. (NASDAQ: AXTI), a leading manufacturer of compound semiconductor substrates, today announced its participation in three upcoming financial conferences.

On May 23, 2012 at 10:30 am PT, Raymond A. Low, chief financial officer, will present at the 13^th Annual B. Riley & Co. Investor Conference in Santa Monica, CA. A webcast of the presentation will be available through the investor relations portion of the company's website at www.axt.com.

On Wednesday, May 30^th, 2012, Low will participate in the 4^th Annual D.A. Davidson & Co. Technology Forum in New York City, NY.

Also on Wednesday, May 30^th, 2012, Morris S. Young, chief executive officer, will participate in the 9^th Annual Craig-Hallum Institutional Investor Conference in Minneapolis, MN.

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.