Why Did the Historic Sloss Furnace Close Down?
The Sloss Furnace halted its operation and closed in 1971 as new regulations such as the 1970 U.S. Clean Air Act had forced many of the older and less-efficient smelting factories to shut down. This was compounded by the stiff competition from foreign companies such as Japanese plants which exported steel and iron to America at a substantially lower cost than those locally produced.