Chemplast Sanmar Limited, the flagship company of the Sanmar Group, integration - forward and backward - is the key. The company's main businesses are PVC, Chlorochemicals and Piping Systems. The synthesis that underlies the polymer chemistry of PVC manufacture is also reflective of the company's approach to business. The basic feedstock for its PVC plant, ethylene and chlorine, come from its industrial alcohol plant at Panruti and its own chloralkali facilities at Mettur and Karaikal. In pursuit of its forward integration strategy, the company has re-entered the PVC pipes business. The manufacturing facilities located at Ponneri near Chennai has a capacity of around 25,000 tonnes per annum of a wide variety of pipes such as pressure pipes, casing and screen pipes, SWR pipes, plumbing pipes and conduits. The piping systems are well-known in the market for high quality under the brand name 'Trubore'.