Semipower Technology Co., Ltd., founded in 2008 as a successor to Samwin South Semiconductor (2003), is a leading Chinese company in power device localization. Headquartered in Xi'an, with R&D centers in Shanghai, Seoul, and Taipei, and sales centers in Shenzhen, it is a national high-tech enterprise specializing in R&D, production, and sales. Semipower’s product range includes medium and high-power MOSFETs, IGBTs, automotive-grade MOSFETs, diodes, bridge stacks, power management ICs, and components for new energy vehicles (NEVs) such as motor controllers and onboard power supplies. The company’s SAMWIN brand has replaced foreign brands like Infineon, ST, and Toshiba in sectors such as chargers, adapters, motor drives, solar inverters, and automotive charging modules, leading China’s domestic electronic components market. In 2016, Semipower established two R&D centers focused on wide-bandgap power and new energy vehicle power control, aimed at localizing electric drive and control systems for NEVs. Semipower has a strong presence in the new energy vehicle sector, supplying products to companies like Wuling Motors, NIO, and CATL, and has become a key player in the Chinese power device market.