The Ethiopian Geological Survey of the Ministry of Mines and Energy (MME) with assistance from
UNDP and private companies have assessed the mineral and petroleum resources of Ethiopia. The resources discovered in different regions of the country are mainly gold,
tantalum,
phosphorus,
iron,
salt,
potash,
soda ash, gemstones,
coal,
geothermal and
natural gas, apart from many industrial and construction materials. Other mineral resources are platinum,
niobium, copper, nickel, manganese and molybdenum; marble is found extensively in most parts of the country. Gold has been exploited since ancient times. Large ore based gold mines are the
Lega Dembi (the largest mine in Guji Zone, Oromia region of Ethiopia) and Sakaro, which have been mined by private companies; the amount of gold produced by these mines is reported to be about 5 tons per year. In the Western and Northern Greenstone Belts of the country (finest mining reserve in gold mining),
orogenic mines have been located; also discovered in this area are ores of the
volcanogenic massive sulfide (VMS). Tantalum is mined at
Kenticha mine. It is found in the
pegmatitic rocks of the Southern Greenstone Belt. Tantalum is used in making all electronic devices such as mobile phones, cameras, computers and so forth; and its mining programme is the sixth largest in the world. Kenticha mines has resources to the extent of 9,000 tonnes of processed potash which could be extracted over the next 15 years. This mine also produces quartz, feldspar, kaolin and dolomite used in industries. The gas fields are located in the southeastern part of the country at
Calub,
Hilala and
Genale gas fields in the
Ogaden Basin. The gas resources potential of these fields have been assessed as 4.6 Trillion Cubic Feet (TCF).
Precambrian to
Recent period rock formations are found suitable for use in construction and in industrial use. ==Laws==