Copper extraction refers to the methods used to obtain copper from its ores. The conversion of copper ores consists of a series of physical, chemical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.
Kazakhmys Group is a vertically integrated holding company whose key assets are concentrated in the mining industry and non-ferrous metallurgy. It was established and registered in the form of a joint-stock company in August 1997. On 14 January 2005, the company was re-registered from a joint-stock company into a limited liability partnership.
La Générale des Carrières et des Mines (Gécamines) is a Congolese commodity trading and mining company headquartered in Lubumbashi, in the Katanga region of the Democratic Republic of Congo. It is a state-controlled corporation founded in 1966 and a successor to the Union Minière du Haut-Katanga. Gecamines is engaged in the exploration, research, exploitation and production of mineral deposits including copper and cobalt.
Aluminum Corporation of China Limited, is a multinational aluminium company headquartered in Beijing, People's Republic of China. It is a public company, listed in Hong Kong and in New York. In 2021, it was the world's largest aluminum producer, ahead of China Hongqiao Group, Rusal and Shandong Xinfa.
Mount Isa Mines Limited ("MIM") operates the Mount Isa copper, lead, zinc and silver mines near Mount Isa, Queensland, Australia as part of the Glencore group of companies. For a brief period in 1980, MIM was Australia's largest company. It has pioneered several significant mining industry innovations, including the Isa Process copper refining technology, the Isasmelt smelting technology, and the IsaMill fine grinding technology, and it also commercialized the Jameson Cell column flotation technology.
CMOC or CMOC Group Limited, previously known as China Molybdenum Company Limited, is the largest molybdenum producer in Mainland China and among the world's largest companies in the field. It is listed on the Hong Kong Stock Exchange and Shanghai Stock Exchange.
Hunan Nonferrous Metals Holding Group Co., Ltd. is a nonferrous metals company of China. It is a subsidiary of China Minmetals, which in turn indirectly under supervision of State-owned Assets Supervision and Administration Commission.
China Minmetals Corporation is a Chinese metals and mineral trading company headquartered in Beijing. It is a state-owned corporation under direct supervision of the State-owned Assets Supervision and Administration Commission (SASAC). China Minmetals is engaged in the production and trading of metals and minerals, including copper, aluminum, tungsten, tin, antimony, lead, zinc, and nickel.
Youser or Shaanxi Non-ferrous Metals Holding Group is the biggest molybdenum and titanium mining and metallurgy company in Shaanxi, China. Via subsidiaries, the company develops, manages, and operates non-ferrous metal resources, including lead, zinc, molybdenum, aluminum and titanium products, among others. The Group is also active in geological engineering and the processing and trading of mining products.
The mineral industry is one of the main sectors of the Armenian economy and in 2017 accounted for 30.1% of its exports.
Shenzhen Zhongjin Lingnan Nonfemet Co., Ltd. known as Zhongjin Lingnan in China or their English name Nonfemet, is a Chinese company engaged in the mining and processing of lead, zinc and other non-ferrous metals. In 2015 financial year, the company also had 0.49% revenue from real estate development.
Jinduicheng Molybdenum Group Mining Corporation is a Chinese company which is engaged in molybdenum production, sales and manufacturing. This company provides molybdenum charging materials, including roasted molybdenum concrete powder and ferromolybdenum; molybdenum metal products, including molybdenum powder, molybdenum slabs, molybdenum rods and molybdenum wires, among others, as well as molybdenum chemical products, including ammonium molybdate, molybdenum disulfide and molybdenum oxide, among others.
China Nonferrous Metal Mining (Group) Co., Ltd. is a Chinese corporation involved with the mining of non-ferrous mineral resources. Established in 1983, it is a large central enterprise managed by the State-owned Assets Supervision and Administration Commission of the State Council.
Thompson Creek Metals Company Inc. was a full cycle mining company with acquisition, exploration, development, and operation in North America. The corporate office was located in Denver, Colorado. The company primarily produced copper, gold, and molybdenum. Over its history, the Company evolved from being a major primary molybdenum producer to becoming a copper and gold mining company with the construction and development of the Mount Milligan mine and concentrator in British Columbia, Canada. Mount Milligan was Thompson Creek Metals principal operation and the company owned 100% of this property. The company also owned 100% of its Thompson Creek Mine in Idaho. Thompson Creek Metals owned 75% joint venture interest in two other properties, including its Endako Mine in British Columbia, and its Langeloth Metallurgical Facility (roaster) in Pennsylvania. Thompson Creek Metals had additional development projects, including the Berg property in British Columbia.
Mining in North Korea is important to the country's economy. North Korea is naturally abundant in metals such as magnesite, zinc, tungsten, and iron; with magnesite resources of 6 billion tonnes, particularly in the North and South Hamgyong Province and Chagang Province. However, often these cannot be mined due to the acute shortage of electricity in the country, as well as the lack of proper tools to mine these materials and an antiquated industrial base. Coal, iron ore, limestone, and magnesite deposits are larger than other mineral commodities. Mining joint ventures with other countries include China, Canada, Egypt, and South Korea.
The Mirador mine is a large copper mine located in the Amazonian province of Zamora-Chinchipe in southern Ecuador. It is one of the largest copper reserves in Ecuador, and the first industrial-scale copper project to be developed in the country. The project has generated an environmental conflict that is emblematic in the national political debate on mining.
Metallurgy section on site Ministry of Industry and Trade of the Russian Federation, Russian Ministry of Industry, March 18, 2009, at Internet Archive</ref> The volume of metallurgical production was 1.87 trillion rubles (2009). Investments in fixed assets in metallurgy were 280 billion rubles (2008). The average salary in the metallurgical industry was 23,258 rubles / month.
China Hongqiao Group Limited is a company founded in 1994 that specializes in the production of aluminium. Hongqiao is currently the second largest aluminium producer in the world after Chinalco. It is listed on the Hong Kong Stock Exchange with stock code 1378, and is incorporated in George Town, Cayman Islands.
The metallurgical production of the Republic of Azerbaijan is considered high due to the large deposits of alunite, polymetallic ores, deposits of iron ore, etc. The metallurgy industry of Azerbaijan encompasses both ferrous and non-ferrous branches.
