Don Tatzin

DON TATZIN has served as Interim Chief Executive Officer of AXT, Inc.,
since May 2004. He joined the company’s Board of Directors in 1998 and
was appointed Chief Financial Officer in August 2000. From 1993 to 1998,
Mr. Tatzin served as Executive Vice President of Showboat, a gaming
company. In addition, from April 1995 to October 1996, Mr. Tatzin served
as a Director for Sydney Harbour Casino, an Australian gaming company
and from April 1996 to October 1996, as its Chief Executive Officer.
From 1976 to 1993, Mr. Tatzin was a Director and Consultant with Arthur
D. Little, Inc. Mr. Tatzin has a BS degrees in Economics and Urban
Studies and a Master of City Planning degree from the Massachusetts
Institute of Technology. He was also awarded an MS degree in Economics
from Australian National University.