IRPC Public Company Limited or IRPC (Company) formerly Thai Petrochemical Industry Public Company Limited or "TPI" registered in 1978 by Leophairatana family. TPI had been transformed to a public company limited on October 10, 1994 and listed on the SET on March 17, 1995. IRPC started to produce applications of petroleum and petrochemical products in 1982 and expanded its line of production of various petrochemical products. It expanded the plant and infrastructures for fully integrated petrochemical complex. IRPC was suffered from financial crisis in 1997and had entered into rehabilitation process in 2000. The rehabilitation was successful in April 26,2006.IRPC and its subsidiaries are currently the first fully integrated petrochemical complex in Southeast Asia. IRPC's plants are located in an industrial area in Rayong Province with facilities to support the businesses such as deep sea port, tank farm and power plant.