AXT Announces Pricing of Underwritten Public Offering

AXT, Inc, a leading manufacturer of compound semiconductor wafer substrates, announced the pricing of an underwritten public offering of 7,098,492 shares of common stock at a price to the public of $12.25 per share. The gross proceeds from the offering to the Company are expected to be approximately $87 million, before deducting underwriting discounts and commissions and other offering expenses. In addition, the Company granted the underwriter a 30-day option to purchase up to 1,064,773 additional shares of common stock at the public offering price, less the underwriting discounts (the “Overallotment Option”). If the Overallotment Option is fully exercised, the Company expects to receive aggregate gross proceeds of approximately $100 million, before deducting underwriting discounts and commissions and other offering expenses. The offering is expected to close, subject to customary closing conditions.

The Company intends to use the net proceeds from the offering primarily to increase the manufacturing capacity of its subsidiary, Beijing Tongmei Xtal Technology Co., Ltd., to produce indium phosphide substrates for export worldwide in response to growing industry demand, for research and development of new or improved products, and for general corporate and working capital purposes.

Northland Capital Markets is acting as sole bookrunner for this offering. Wedbush Securities Inc., and Craig-Hallum Capital Group LLC are acting as co-managers for this offering.

A shelf registration statement on Form S-3 relating to the securities offered in the public offering described above was filed with the Securities and Exchange Commission (the “SEC”) (File No. 333- 291378). The offering will be made only by means of a written prospectus and prospectus supplement that form a part of the registration statement. A preliminary prospectus supplement and accompanying prospectus relating to the offering has been filed with the SEC and is available on the SEC’s website at www.sec.gov. A final prospectus supplement and accompanying prospectus will be filed with the SEC. Copies of the final prospectus supplement and the accompanying prospectus, when available, may also be obtained from Northland Capital Markets, 150 South Fifth Street, Suite 3300, Minneapolis, MN 55402, Attention: Heidi Fletcher, by telephone at (612) 851-4918 or by visiting the SEC’s website located at http://www.sec.gov. The final terms of the offering will be disclosed in a final prospectus supplement to be filed with the SEC.