AXTI

AXT, Inc. develops and manufactures high-performance semiconductor wafer substrates, specifically indium phosphide (InP), gallium arsenide (GaAs), and germanium (Ge). The company utilizes its proprietary Vertical Gradient Freeze (VGF) crystal growth technique to produce these substrates, which are essential for applications in optical connectivity, artificial intelligence infrastructure, and advanced electronic devices. AXT operates globally, with its headquarters in Fremont, California, and manufacturing facilities in China, leveraging a vertically integrated supply chain to ensure material quality and cost efficiency.