The Supreme Court ban on usage of pet coke and furnace oil in the States of Uttar Pradesh, Rajasthan and Haryana to curb pollution hammered cement stocks. Stocks of companies such as Shree Cement, JK Cement and JK Lakshmi — which derive about three-fourths of their volumes from these States — were down by 7-8 per cent last week. Till recently, cement companies have been slashing overall fuel c...