The ratings agency said that higher import duties on carbon steel products are credit positive for Tata Steel (Ba1 stable) and JSW Steel (Ba1 stable) as they will support Indian steel prices and contribute to steel producers' profitability.“As of the quarter ended March 31, 2015, cheaper imports led to a 6 per cent decline in realised per tonne prices at Tata Steel, versus a year earlier, and a 10 per cent decline at JSW Steel during the same period,” it added.