mclouth steel is a former integrated steel company. the company was once the ninth largest steelmaker in the country, and had three locations. the first plant was in detroit, michigan, the second (and significantly larger) in trenton, michigan, and the third, a cold mill, in gibraltar, michigan. the detroit plant is currently owned by jones & laughlin steel company, and has been demolished. the trenton facility is owned by msc land co. and around half the site remains, including the rolling mill. the gibraltar cold mill is owned by ferrolux, and has been restarted.