Hindalco Industries Ltd.

Hindustan Copper LimitedMiningIndia

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Hindustan Copper Limited is a public sector undertaking under the administrative control of India's Ministry of Mines, incorporated in November 1967. The company's corporate headquarters is located at Tamra Bhavan in Kolkata, overseeing nationwide copper mining and smelting operations.

Hindustan ZincHINDZINC · MiningIndia

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Hindustan Zinc Limited (HZL) is an Indian integrated mining and resources producer of zinc, lead, silver and cadmium. It is a subsidiary of Vedanta Limited. Earlier it was a Central Public Sector Undertaking, sold by Government of India to Vedanta Limited when Atal Bihari Vajpayee and Bharatiya Janta Party Government was in power in the year 2003. HZL is the world's second largest zinc producer.

Coal India Limited (CIL) is an Indian state-owned coal mining company headquartered in Kolkata. It is the largest coal producer in the world by output and operates under the administrative control of the Ministry of Coal.

Rio Tinto Group engages in exploring, mining, and processing mineral resources worldwide. The company operates through Iron Ore; Aluminium and lithium; and Copper segments. The Iron Ore segment engages in the iron ore mining, and salt and gypsum production in Western Australia. The Aluminum and lithium segment is involved in bauxite mining; alumina refining; and aluminium smelting, and recycling, as well as mining and processing of lithium. The Copper segment engages in mining and refining of copper, gold, silver, molybdenum, and other by-products and exploration activities. It also owns and operates open pit and underground mines; and refineries, smelters, processing plants and power, and shipping facilities. The company was founded in 1873 and is headquartered in London, the United Kingdom.

Established in 1960 and headquartered in Mumbai, Ashapura Minechem Limited is India's largest multi-mineral solutions provider, mine owner, and exporter of bentonite.

South32 LimitedS32 · MiningPerth, Australia

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South32 Limited functions as a diversified metals and mining company, conducting operations across Australia, Southern Africa, North America, and South America. The firm manages its extensive activities through various segments, including Worsley Alumina, Brazil Alumina, and Illawarra Metallurgical Coal. Its substantial portfolio of assets is responsible for yielding a broad array of commodities such as bauxite, alumina, aluminum, copper, silver, lead, zinc, nickel, metallurgical coal, manganese, and ferronickel, as well as other base metals. South32 also engages in the global export of its products. Established in 2000, the company's corporate headquarters are situated in Perth, Australia.