ChenFull Precision Co., Ltd. (6829.TWO) manufactures precision components for optoelectronic, semiconductor equipment, and aerospace industries; its core products include high vacuum chambers such as integrated one-process aluminum alloy vacuum chambers, stainless steel vacuum chambers, aluminum alloy welding high vacuum chambers, customized vacuum coating chambers, and special process vacuum chambers; vacuum parts and components for optoelectronic display and semiconductor process equipment; aircraft structure parts machined via multi-axis milling and turning; aircraft engine cases and components for international civil aviation; defense precision parts; and key aerospace components for friction stir welding development. Founded in 1976 as the Precision Technology Division and headquartered at No. 28, Houke South Road, Houli District, Taichung City in Taiwan's Central Taiwan Science Park, the company operates internationally with sales primarily to Singapore, Taiwan, the United States, and other Asian markets including South Korea; it serves leading domestic and overseas manufacturers in aerospace, semiconductor, and optoelectronics sectors as a subsidiary of Chen Full International Co., Ltd. Recent developments include plans to commence operations at the first phase of a new Chiayi plant in Q2 2026, with the second phase starting construction in January 2027; collaboration with a major European semiconductor equipment manufacturer to develop electromechanical integration modules for 2025 delivery; projected double-digit revenue growth in the second half of 2025 driven by semiconductor and defense sector momentum; and Q3 2025 consolidated revenue of NT$1.06 billion with year-to-date after-tax profit of NT$218 million.