Chemplast Sanmar Ltd is planning to increase its PVC capacity in Semmankuppam in Cuddalore district of Tamil Nadu. The project involves expanding PVC capacity from 300000 TPA to 600000 TPA. The technology for the required expansion is to be sourced from INOVIN UK Ltd (Formerly known as Ineos Vinyls Ltd). The project cost is estimated at Rs. 5000 million.