Tamil Nadu Newsprint and Papers (TNPL) plans to invest around Rs 370 crore to build a high-grade cement manufacturing facility with a capacity of 600 tonne per day. The proposed Rs 370-crore investment would include a de-inking plant with a capacity of 300 tonne per day at an investment of Rs 175 crore, which is expected to go on stream by March 2012, Rs 135 crore to revamp power equipments and Rs 70 crore towards setting up 60 tonne per day plant. The cement would cater to five districts around the company’s existing plant. The project will be completed by December 2011 and the cement made be available in the market from January 2012.