Yong Shun Chemical Co., Ltd. (4711.TWO) manufactures and sells specialty chemical products primarily for the plastics, rubber, and coatings industries. The company produces a range of additives and processing aids, including plasticizers such as dioctyl phthalate (DOP) and diisononyl phthalate (DINP); heat stabilizers for PVC processing; lubricants and stearates; antioxidants and UV absorbers; as well as flame retardants and blowing agents used in foam production. It also offers custom chemical compounding services and technical support for polymer applications. Yong Shun Chemical operates manufacturing facilities in Taiwan and distributes products across Asia, with exports to Southeast Asia, China, and select markets in Europe and North America. Founded in 1986, the company maintains its headquarters in Kaohsiung, Taiwan. In recent developments within the last two years, Yong Shun Chemical expanded production capacity for eco-friendly plasticizers amid global demand for phthalate alternatives and formed strategic distribution partnerships in Vietnam and Indonesia to strengthen its regional presence. No major acquisitions, funding rounds, or name changes have been reported recently. The company focuses on the chemical additives segment, serving customers in plastics compounding, wire and cable manufacturing, and automotive parts production.