Thirumalai Chemicals Limited (TCL), started production of Phthalic Anhydride in 1976 in Ranipet, in South India. Since then, it has grown into a diverse and respected enterprise, rapidly expanding into the manufacture of many other critical Industrial Chemicals: Maleic Anhydride, Fumaric Acid and Malic Acid and various Fine Chemicals and Derivatives. Today TCL ranks among the largest producers in the world in all its core products. We have a strong manufacturing base capable of delivering quality products, with excellent logistics and technical support, at competitive prices.