Formosa Sumco Technology Corporation (3532.TW) manufactures and sells silicon wafers for use in semiconductors, including integrated circuits and dynamic random access memory products. The company produces polished wafers, annealed wafers, epitaxial wafers and monocrystalline ingots in eight-inch and twelve-inch sizes; it also trades, imports and exports silicon wafers and related raw materials. Operations span Taiwan, Japan and China, with primary manufacturing at its Mailiao plant in Yunlin, Taiwan. Formosa Sumco Technology Corporation, founded in 1995 and headquartered at 8th Floor, A1 Building, No. 380, Section 6, Nanjing East Road, Neihu District, Taipei, Taiwan, functions as a joint venture within the Formosa Plastics Group and maintains strategic ties to Japan's SUMCO Corporation. In recent years, the company has pursued capacity enhancements through significant investments in property, plant and equipment, including a NT$1.2 billion acquisition of machinery in 2022 to support operational expansion; it continues debottlenecking and modernization efforts amid demand for advanced wafers in AI, 5G and automotive applications. As part of ongoing semiconductor supply chain integration, Formosa Sumco Technology reported trailing twelve-month revenue of NT$12.18 billion in late 2025, reflecting steady contributions to electronics sectors across Asia and the Americas.