The floor price for offloading a 12.5 per cent of the Centre’s equity stake in Rashtriya Chemicals and Fertilizers (RCF) on Friday through OFS (offer for sale) has been fixed at Rs.45 per share, the company said in a filing to the BSE. At this level, the disinvestment exercise is expected to mop up a minimum of Rs.310 crore. The 12.15 per cent stake sale in Nalco is likely next week and 10.82 per cent disinvestment in SAIL may take place on March 20, sources said.