Top 5 Mining Companies in the World

2. Rio Tinto Group (NYSE: RIO)

Market Cap: $139.5 billion
Revenue in 2020: $44.6 billion

Rio Tinto is one of the top mining companies in the world and operates in over 35 countries. The company is the pioneer in mining and produces iron ore, aluminum, diamond, gold, copper, and borate. The primary focus of the company is on the extraction of minerals but has also some operations in refining, particularly for refining bauxite and iron ore.

Richest Countries in the World by Natural Resources

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