AXT, Inc. Announces Financial Conference Participation for the Third Quarter 2024

AXT, Inc. (Nasdaq: AXTI), a leading manufacturer of compound semiconductor substrates, today announced that it will participate in the upcoming financial conferences:

• Jefferies Semiconductor, IT Hardware & Communications Technology Conference on August 27, 2024 in Chicago, IL

• Evercore ISI Semiconductor, IT Hardware & Networking Conference on August 28, 2024 in Chicago, IL

About AXT, Inc.

AXT is a material science company that develops and manufactures high-performance compound and single element semiconductor substrate wafers comprising indium phosphide (InP), gallium arsenide (GaAs) and germanium (Ge). The company’s wafer substrates are used when a typical silicon wafer substrate cannot meet the performance requirements of a semiconductor or optoelectronic device. End markets include 5G infrastructure, data center connectivity (silicon photonics), passive optical networks, LED lighting, lasers, sensors, power amplifiers for wireless devices and satellite solar cells. AXT’s worldwide headquarters are in Fremont, California where the company maintains sales, administration and customer service functions. AXT has its Asia headquarters in Beijing, China and manufacturing facilities in three separate locations in China. In addition, as part of its supply chain strategy, the company has partial ownership in more than ten companies in China producing raw materials and consumables for its manufacturing process. For more information, see AXT’s website at http://www.axt.com.

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Gary L. Fischer Chief Financial Officer [e-mail]

Leslie Green Green Communications Consulting, LLC [e-mail]