The Department of Geological Survey & Mineral Exploration Ministry of Mines is a Division of the Ministry of Mines of Burma and carries out research in geological and mineral resources. The Department functions according to the Myanmar Mines Law and Rules. The Department of Geological Survey & Mineral Exploration has prepared geological maps for almost 77% of the country. As a result of its explorations, deposits of coal, lignite, lead, gold, silver, copper and sapphire have been discovered in numerous areas.