The State possesses large reserve of crude clay. But most of it is of inferior grade, the recovery being in the range of 30-35%. The average annual production of finished clay is 10,000 tonnes from 5 working mines. There are 9 subsisting leases.
Mining is open cast, in benches of 1.2 - 1.5 m height. There is no working during the rainy season lasting for 4 months every year. China Clay produced in the State are currently used in rubber, paper, textiles, ceramics and paint industries. Silica sand obtained as by product of washing crude clay is used in foundry, glass industries and in welding electrodes for flux making.