1964 February - The company was founded and set up in Taipei City, and set up plant in Tou Fen Township, Miaoli County, to produce PVC powder and PVC pipe, film, and leather.
1968 May - Panama Gulf Oil Company formally invested in the Company to introduce new production technology and management system.
1970 January - The Ministry of Economic Affairs initiated the joint venture between the company, CPC Corporation, Tai-Chien, Formosa Plastics Corporation, Cathay Pacific Plastics and Yee Fong Chemical & Industrial Co. Ltd., and set up Taiwan VCM Corporation, which plants in Kaohsiung and Tou Fen to manufacture of vinyl chloride monomer (VCM) and supply raw materials for domestic PVC (PVC) and its processing industry.
1973 March - The Company's shares were approved to be publicly traded on the Taiwan Stock Exchange.
1982 May - The Company was transferred to Panama Merchants Asia Private Investment Corporation for the ownership of the Company by the change of business strategy of Panama Gulf Oil Company.
1986 November - BTR Nylex Limited acquired a 31% stake in the Company and transferred the share to its 100% owned subsidiary, BTRN Asia, in December of the same year.
1988 June - Company set up CGPC America Corporation in the United States, to strengthen the business in the Americas to promote international products.
1994 Passed the International Quality Assurance System (ISO-9002) certification, effectively improve product quality.
1997 March - BTRN Asia, which owns 31% of the shares of the Company, was transferred to Bermuda Fiji Guinea Co., Ltd., which is a joint venture between USI Corporation and UPC Group jointly formed by the overseas holding company.
June - the Ministry of Economic Affairs approved the approval of the Company through the third region in the mainland of Guangdong Province, Zhongshan City, invest in the establishment of China Plastic (Zhongshan) Co., The resolution of the Board of Directors of the Company was dissolution on October 24, 2011, the procedure was not completed yet.
1998 June - Passed the Environmental Management System (ISO-14001), to enhance the quality of environmental protection and reduce waste.
2009 May - The Company set up 100% shares of CPGC Polymer Corporation in Kaohsiung to build annual output of 200,000 tons of PVC powder plant.
2012 February - CPGC Polymer Corporation began its official operation.