South India Sponge Iron to expand its sponge iron plant at Koppathimmanahalli, Lakkur Hobli, in Malur taluk in Kolar district of Karnataka. The project involves setting up of Sponge Iron Plant (30,000 MTPA to 55,000 MTPA) with an investment of Rs. 111.6 million. Ore Pre-heater Technology will be adopted in the Sponge Iron manufacturing process in which another elevated rotary kiln (75 TPD) will be installed in line with production kiln and placed between main kiln & After Burning Chamber (ABC) in the proposed expansion. The technology will basically use the waste heat of sponge iron by traditional method to improve the productivity by 50% and reduce coal consumption by 15%, which in turn will reduce the cost of production. Therefore, no WHRB will be installed.