SHANGHAI – Nylon intermediate and fibre producer Invista has received Environmental Impact Assessment (EIA) approval from the Shanghai Environmental Protection Bureau for a 215,000-ton per year hexamethylene diamine (HMD) plant at the Shanghai Chemical Industrial Park, where it expects to start production in 2015. The plant will serve the fast growing Asia Pacific markets for a variety of nylon 6,6 textile fibre applications and high performance polyurethanes.