Orhon aimag is the most modern city in the Mongolia. Orhon aimag was established in 1994. A rich deposit of copper and molybdenum was discovered by Mongolian, Russian and Czechoslovakian geologists in the territory of the aimag in 1967-1970. In 1974 building of a Soviet-Mongolian copper ore dressing "Erdenet" enterprise began. Now the enterprise is considered one of the ten biggest plants in the world. That was the first step of new city Erdenet. The enterprise is very important in terms of economics and produces 25% of total budget, 51.5% of the total national export products. Previously Orkhon aimag was a part of Bulgan aimag so the biodiversity and climate are almost the same as Bulgan.

The aimag has two administrative units - Bayan-Undur and Jargalan soums and 11 bags. The main branches of construction materials, light-and food industry have a capacity to process 20000 tons of ore. The Power Plant can produce 117,4 mln kw/hour of electric power. The "Erdenet carpet factories"capable of producing 1300 thousand cubic meters of carpets. "Erdenet food" Co.,Ltd has a capacity of producing 4643 tons of bread, 500 tons of baked goods, 500 thousand litres of vodka, 4000 thousand litre a of soft drinks, 3000 thousand litres of milk and dairy products. "Mongol Shines"house-building company is able to produce 80,0 thousand cubic meters of wood, 100 thousand square meters of window frames and doors and 200 thousand square meters of housing. Other large companies such as "Zandan", "Erdenet-Nooluur","Erdenet Metall", "Erdmin" are successfully operating in the aimag as well. As a result, 50 various kinds of industrial products, 437,7 thousand tons of copper concentrate, 3000 tons of pure copper, over 20 tons of cashmere, over 500 thousand square kilometers of carpets, about 50 cubic meters of wool are produced annually, so that Erdenet produces 38,4 percent of all national manufactured goods and 51,1 percent in Orkhon aimag.i proud of my hometown.