Four companies in the Indorama Ventures (IVL) group have been awarded CSR-DIW Standard Certification by the Department of Industrial Works of Thailand’s Ministry of Industry. Four company are TPT Petrochemicals Public Co. Ltd, Indorama Petrochem Limited and Indorama Polyester Industries Public Co. Ltd., in Rayong and Indorama Polyester Industries Public Co., Ltd., in Nakhon Pathom. The certification, which is seen as the first step to acquiring ISO 26000. The awards were presented at the Grand Four Wings Convention Hotel in Bangkok.