Vinythai Public Company Limited was established to carry on the production and distribution of PVC, Caustic Soda and Epichlorohydrin (ECH). The Company is a producer in the intermediate petrochemical industry and distributes its products to manufacturers who reprocess PVC into finished products in the plastic industry. The Company obtains the major part of its income from the manufacture and distribution of PVC resins under the trademark "SIAMVIC",and VCM, and from Caustic Soda as a co-product of the production of chlorine. The bio-based ECH under brand name EPCEROL? mostly serves expoxy resins markets mainly driven by coatings, electronics and composites industries. Vinythai has three subsidiary companies: Advanced Biochemical (Thailand) Co., Ltd., Solvay Biochemicals (Taixing) Limited and Vinythai Holding Pte. Ltd.