Tamilnadu Cements Corporation Limited (TANCEM), a wholly owned Government of Tamilnadu undertaking, started business from 1st April 1976 with an authorized share capital of Rs. 18 crores taking over cement plant at Alangulam and setting up another plant at Ariyalur in the year 1979. TANCEM, as its expansion and conversion activities, set up Asbestos Sheet unit at Alangulam during 1981.