On8 March 2018, the US president signed an executive order which places a 25% tariff to steel imports. This will cause about 10.6 Mt of imported steel to be uncompetitive and to be replaced by domestic production. The action already prompted US Steel to restart its B furnace at Granite City. About 60% of the imported steel will need to be replaced by steel produced by basic oxygen furnaces. Domestic metallurgical coal demand is expected to increase 3.8 Mtpa.