Founded in 1999, Win Semiconductors is the largest foundry for nonsilicon-based semiconductor components, most notably gallium arsenide, or GaAs; gallium nitride, or GaN; and silicon carbide, or SiC. Per Strategy Analytics, Win Semi has over 76% market share as a GaAs foundry market, followed by Advanced Wireless Semiconductor Company, or AWSC, at 8.1% and GCS Holdings, or GCS at 5.8%. The company's headquarters, four factories and most of its 3,000 employees are based in Taoyuan City, Taiwan. Its products are applied in mobile, Wi-Fi networks, cellular infrastructure (such as base stations), satellite communication, optical communication and 3D sensing. The company also provides automated testing and inspection services.