There are hundreds of industrial complexes in Tabriz's industrial area. Among them is the Iran Tractor Manufacturing Co (ITMCO) which is one of the biggest industrial complexes in the region. This complex alone has the highest foundry and forging capacity in the Middle East and it is the biggest tractor manufacturer in Iran with several production branches within Iran and other countries. Behind ITMCO there are several other industrial complexes including Mashin Sazi Tabriz Co, Iran Diesel Engine Manufacturing Co (IDEM), Pump Iran, Tabriz Petrochemical Complex, Tabriz Oil Refinery and a couple of industrial regions which include hundreds of small industries.