US Steel's Great Lakes steel plant located at Ecorse Michigan produces hot rolled and cold rolled sheets and HDG and electro galvanised steels. Most of the steel is sold to the automotive sector in Michigan. Only two (B2 & D4) of the three blast furnaces are in operation at the Great Lakes plant producing 2.2 Mtpa. The A1 blast furnace is idle. This is another all pellet blast furnace operation sourcing US Steel's Keetac and Minntac iron ore operations.