EXHIBIT 23.3
CONSENT OF PRICEWATERHOUSECOOPERS LLP,
INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated March 5, 2004, relating to the financial statements, which appears in AXT, Inc.’s Annual Report on Form 10-K. We also consent to the references to us under the headings “Experts” in such Registration Statement.
/s/ PricewaterhouseCoopers LLP
San Jose, California
June 29, 2006