In opposition to claims by the advisors from Arthur McKee & Company that the facilities were not yet ready for use, the furnaces at MMK were put into action in 1932 with the first flow of molten pig iron being produced. While this move to initiate activities at the complex was applauded by the Soviet leadership, the plant was forced to halt their production only a few days later due to the need for serious repairs in the furnaces. By 1933 the plant was producing steel.