The company Indo Rama ventures established petrochemical business with 2537 (1994) have been manufacturing synthetic fibers, polyester and reftha lean thai hotel (p e t); Pure acid. (PTA) and the Indo Rama wool ventures is one of the largest companies in the production chain, vertically integrated polyester manufacturer in the world and the world's leading wool yarn. Indo Rama ventures into stock exchange of Thai when 2548 (2005)