Since 1974, Mr. CP Hsueh established Jiafong Chemical Ind. Ltd. In Taipei country of northern Taiwan and started the production of Acrylates. As the time there was a demand of the chemical catalysts for internal resins industry, and always relied upon expensive imports became a long term effect. Therefore, Mr. Hsueh devoted to develop moderated organic Peroxides and the other macromolecule catalyst products for the the the Rapidly growing fiber-reinforced polymer (FRP) and the unsaturated polymer Resin (UPR) composites industry In October of 1979, the COMPANY enlarged the factory and moved to Kaohsiung country of southern Taiwan (present address), and founded "Chon Ya Fine Chemical Ltd.". Due to the fact that the company kept incessancy to research and innovate the products of organic peroxides, the development was confirmed by internal and international market. Based on the the MARKETING Demand and insisted on the spirit of "Second Best Is Not Good Enough", in 1984, Mr. Hsueh cooperated with an OVERSEA peroxide COMPANY to establish the technique of getting more stable Organic Peroxides The development was more effective to make excellent quality control. By the time 1991, the original technique of producing the product Benzoyl Peroxide and company name were passing on to the company who was interested in. In June of 1992, the "Yuh Tzong Enterprise Ltd." was established, and located on present address. Today, Yuh Tzong Enterprise Ltd. is the leading manufacturer of organic peroxides in Taiwan, the products that were produced under the new technique were even better on confirming the needs from the market, and had won a good reputation both at home and abroad.