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Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water.
Barrick Gold Corporation is a mining company that produces gold and copper with 16 operating sites in 13 countries. It is headquartered in Toronto, Ontario, Canada. It has mining operations in Argentina, Canada, Chile, Côte d'Ivoire, Democratic Republic of the Congo, Dominican Republic, Mali, Papua New Guinea, Saudi Arabia, Tanzania, the United States and Zambia. In 2023, it produced 4.05 million ounces of gold at all-in sustaining costs of $1,335/ounce and 420 million pounds of copper at all-in sustaining costs of $3.21/pound. As of 31 December 2023, the company had 77 million ounces of proven and probable gold reserves.
Metso Corporation was a Finnish industrial machinery company focusing on providing technology and services for mining, aggregates, and oil and gas, recycling, pulp and paper and other process industries.
The Ok Tedi Mine is an open-pit copper and gold mine in Papua New Guinea located near the headwaters of the Ok Tedi River, in the Star Mountains Rural LLG of the North Fly District of the Western Province of Papua New Guinea.
KGHM Polska Miedź S.A., commonly known as KGHM, is a Polish multinational mining corporation headquartered in Lubin, Lower Silesia, Poland. Founded in 1961 as a state enterprise, the company is considered a major global producer of copper and silver. Since 1997, it has been listed on the Warsaw Stock Exchange (WSE). The company is also a component of the WIG30 stock market index.
Mining in Papua New Guinea is an important part of the Papua New Guinea economy.
The mineral industry is one of the main sectors of the Armenian economy and in 2017 accounted for 30.1% of its exports.
The second-largest mineral industry in the world is the mineral industry of Africa, which implies large quantities of resources due to Africa being the second largest continent, with 30.37 million square kilometres of land.With a population of 1.4 billion living there, mineral exploration and production constitute significant parts of their economies for many African countries and remain keys to economic growth. Africa is richly endowed with mineral reserves and ranks first in quantity of world reserves for bauxite, cobalt, industrial diamond, phosphate rock, platinum-group metals (PGM), vermiculite, and zirconium.
PT United Tractors Tbk is an Indonesian company, subsidiary of PT Astra International Tbk ("Astra") that operates in six business lines, namely Construction Machinery, Mining Contractor, Coal Mining, Gold Mining, Construction Industry, and Energy. United Tractors has 20 branch offices, 32 site supports, 6 representative offices, and 54 support points as well as other service installations.
Ausenco Limited is a multinational engineering, procurement, construction management, and operations service provider to the energy and resources sectors. Its head office is in Brisbane, Australia. The company's name is an amalgamation of "Australian Engineering Company."
The Batu Hijau mine is an open pit copper-gold mine operated by PT. Amman Mineral Nusa Tenggara. The mine is the second largest copper-gold mine in Indonesia behind the Grasberg mine of PT. Freeport Indonesia. The mine is located 1,530 kilometres (950 mi) east of the Indonesian capital Jakarta on Sumbawa, an island in West Nusa Tenggara Province, more precisely in the southern part of West Sumbawa Regency. The mine is the result of a ten-year exploration and construction program based on a 1999 discovery of the porphyry copper deposit. Production began in 2000.
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.
The Skouries mine is a high-grade gold-copper porphyry deposit located in the Chalkidiki peninsula in northern Greece. It is currently under development by Eldorado Gold and is planned to be an open pit and underground mine. Production is targeted in 2019.
The Olympic Dam mine is a large poly-metallic underground mine located in South Australia, 550 km (340 mi) NNW of Adelaide. It is the fourth largest copper deposit and the largest known single deposit of uranium in the world. Copper is the largest contributor to total revenue, accounting for approximately 70% of the mine's revenue, with the remaining 25% from uranium, and around 5% from silver and gold. BHP has owned and operated the mine since 2005. The mine was previously owned by Western Mining Corporation. Since the 1970s environmentalists, traditional owners and others have campaigned against the mine, largely on the basis of its contribution to the nuclear cycle and its use of underground water.
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.
Mount Polley mine is a Canadian gold and copper mine located in British Columbia near the towns of Williams Lake and Likely. It consists of two open-pit sites with an underground mining component and is owned and operated by the Mount Polley Mining Corporation, a wholly owned subsidiary of Imperial Metals. In 2013, the mine produced an output of 38,501,165 pounds (17,463,835 kg) of copper, 45,823 ounces of gold, and 123,999 of silver. The mill commenced operations in 1997 and was closed and placed on care and maintenance in 2019. The company owns 20,113 hectares (201.13 km2) of property near Quesnel Lake and Polley Lake where it has mining leases and operations on 2,007 hectares (20.07 km2) and mineral claims on 18,106 hectares (181.06 km2). Mineral concentrate is delivered by truck to the Port of Vancouver.
Sierra Gorda Mine in Chile is a copper and molybdenum open pit mine which started production on October 1, 2014. The mine is located 2 km north-west of the village of Sierra Gorda in the Antofagasta Province of northern Chile.
Las Bambas copper mine is an open-pit copper mine in the Cotabambas province of Peru. With over a billion tons of copper ore, the deposit is one of the largest in the world and produces 2% of global copper. Las Bambas also produces molybdenum concentrates. Development began on the mine in August 2015 and production began in early 2016.
South32 is a mining and metals company headquartered in Perth, Western Australia. It was spun out of BHP Billiton on 18 May 2015. It is listed on the Australian Securities Exchange with secondary listings on the Johannesburg and London Stock Exchanges.
References
- ↑ "Detailed engineering contractors". digiscend.com. 2015. Archived from the original on 17 November 2015. Retrieved 30 August 2015.
- ↑ "Detailed engineering at Didipio mine" (PDF). outotec.com. 2013. Retrieved 30 August 2015.
- ↑ "Detailed engineering at Inmaculada mine". gmisa.com. 2012. Archived from the original on 4 March 2016. Retrieved 30 August 2015.
- ↑ "Detailed engineering at Sierra Gorda". hatch.ca. 2012. Retrieved 30 August 2015.
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