Established in 1987 as PT Indochlor Prakarsa Industries, producing Caustic soda and EDC, in 1995 PT. Sulfindo Adiusaha ("Sulfindo") expanded two subsidiaries of PT Satomo Indovyl Monomer ("SIM"), producing VCM and PT Satomo Indovyl Polymer ("SIP") producing PVC. To improve production chain efficiency among the plants, in April 2005, the two subsidiary companies were merged into Sulfindo as surviving company. Currently, Sulfindo has annual production capacity of 320,000 DMT of Caustic Soda; 380,000 MT of EDC; 130,000 MT of VCM; and 110,000 MT of PVC which possible future capacity expansion will be continuously considered and realized along with the fast growing market demand both in domestic and overseas. The company's main goal is to become one of the most prominent and advanced world-class leaders in Chlor-Alkali and Vinyl-Chloride producer in South East Asia with still prioritizing employee's safety and environmental awareness.This has been proven with achievement of QMS ISO 9001:2015, Environment Management System ISO 140001:2015, Occupational Health & Safety Management System OHSAS 18001:2007, ISPS CODE, SNI, HALAL (from MUI), SMK3, and PROPER (from Ministry of Environment and Forestry). To ensure the reliable and sustainable power supply, Sulfindo has also established PT. Merak Energi Indonesia ("MEI"), a wholly-owned subsidiary company operating "2 x 60" MW coal-fired power generating plant which have started its operation since December 2013, with complementary of private coal unloading jetty with a capacity of 8,000 MT barge.