RPCG Public Company Limited, formerly Rayong Purifier Public Company Limited, is a Thailand-based company engaged in the manufacture and distribution of petroleum and petrochemical products. The Company is engaged in the distillation of condensate residue (CR), which is a by-product from the production process of PTT Aromatics and Refining Public Company Limited (PTTAR), and is used to produce petroleum and petrochemical products. Its products include high-speed diesel B5, low sulfur waxy residue, gassoline 91 & 95, gasohol 91 & 95, biodiesel 100, and other petrochemical products. The Company manages oil depots in order to sell unleaded gasoline 91 & 95, gasohol 95 and high-speed diesel. Its subsidiaries are including Pure Thai Energy Company Limited, Pure Bio-diesel Limited, SCT Petroleum Company Limited, and others.