Excelliance MOS Corporation engages in the development, manufacture, and sale of power semiconductor components and integrated circuits in Taiwan. The company offers power MOSFETs; AC/DC controllers; buck converters and controllers; power switches; linear regulators; power management ICs; and power modules, with applications spanning laptops, desktops, LCD TVs, monitors, digital cameras, cell phones, power supplies, power tools, automobiles, notebooks, tablets, home appliances, and battery management systems. Founded in 2008 and headquartered at 4F.-1, No. 22, Taiyuan St., Zhubei City, Hsinchu County, Taiwan, Excelliance MOS operates primarily in the semiconductor industry with a subsidiary in Shenzhen, China. In early 2025, the company adopts Silvaco's DTCO Flow, featuring Victory TCAD and UTMOST IV, for next-generation silicon carbide devices to advance power semiconductor process development. In April 2024, Excelliance MOS invests in a domestic corporate entity as part of its strategic expansion. The company lists on the Taipei Exchange under ticker 5299 since 2018 and maintains ISO9001:2008 certification.