The geology of South Sudan is founded on Precambrian igneous and metamorphic rocks, that cover 40 percent of the country’s surface and underlie other rock units. The discovery of oil in 1975 was a major factor in the Second Sudanese Civil War, leading up to independence in 2011. The country also has gold, copper, cobalt, zinc, iron, marble, limestone, and dolomite. At GDT, we have committed our resources and abilities to developing the mining industry for the benefit of both the people in South Sudan with the participation of our precious clients.