PT. Gaya Makmur Tractors (GM Tractors) which is established on 29 August 2005 in Jakarta is a wholesale supplier of heavy equipments for road construction, plantation, forestry, mining and much more. It is a sole distributor of Wirtgen Group (Wirtgen, Vogele, HAMM, Kleemann) of Germany, RM of Austria, Yamaguchi and Takeuchi of Japan.
Furthermore GM Tractors is also a sole distributor of some heavy equipment manufacturers from China. They are Shantui Construction Machinery (Shantui) with their wide range product on bulldozers and wheel loaders. Xuzhou Construction Machinery Group (XCMG) which produces a variety type of cranes, motor graders, wheel loaders, rotary drilling rig, horizontal directional driller, and off-highway truck.
Beside selling those heavy equipment products, GM Tractors also provides after sales service, attachment and component making, heavy equipment recondition, rentals and used heavy equipment sales.