The Gehenna Mining Colony was the central nexus of all Templar mining operations. Nearly all of the resources the Templar's acquired internally was mined at Gehenna. The Planet was rich in Aluminum, Agrinium, and Carbon. The Asteroids were rich in Iron and Carbon. These resources were what let the Templars build the modest fleet they had.
A good deal of the mining was done by Mining Ships, which were armed with Mining Lasers, and a system of Tensor Beams that pulled in the resources into the large containers that the ship pulled underneath it. When a Ship's Container was full it took its container to a Resource Controller. When a Controller had a full load of Containers it generally moved to the Orbiting Gehenna Base until a full convoy was ready to be escorted to Anothelis.