Big Sun Shine Co. Ltd. (1475.TW) is a Taiwan-based company principally engaged in the manufacture, sale, weaving, dyeing, and finishing of textiles; the production and distribution of textile dyes, auxiliaries, pigments, and industrial additives; and the development of optoelectronic products including backlight modules. The company's core products encompass jacquard fabrics for clothing and home furnishings, ready-made fabrics, functional fabrics for outdoor products, piece-dyed fabrics, fire-retardant materials, and dyestuffs; it also conducts catering operations and real estate activities. Founded in 1982 as Sumagh High Tech Corp. and renamed Big Sun Shine Co. Ltd. in September 2020, the firm is headquartered in Taoyuan City, Taiwan, with approximately 153 employees and operations extending to Vietnam, Cambodia, Bangladesh, Jordan, the Americas, Asia, and Europe. In March 2025, Big Sun Shine expanded its partnerships by becoming a key full-service collaborator with HeiQ, a Swiss materials innovator, to enhance textile technology adoption, warehousing, sales, and technical support across Taiwan and Asia, aligning with ongoing efforts to bolster its auxiliaries business amid revenue growth of 52.65% to TWD 1.96 billion in 2024.