AXT Inc. is a developer and producer of compound and single element semiconductor substrates, also known as wafers. The dominant substrates used in producing semiconductor chips and other electronic circuits are made from silicon. The company is engaged in the design, development, manufacture, and distribution of high-performance compound semiconductor substrates and sale of materials. It provides alternative or specialty materials in the form of substrates or wafers, including compound and single element substrates. Its compound substrates combine indium with phosphorous or gallium with arsenic. Its single element substrates are made from germanium. Geographically firm has its business presence across the region of Europe ( primarily Germany), Taiwan, China, North America and Japan.