5 Most Valuable UK Companies in the World

4. Rio Tinto Group (NYSE: RIO)

Incorporated in 1873 and rooted in London, the United Kingdom, Rio Tinto Group (NYSE: RIO) centers around the exploration, mining, and processing of mineral resources internationally. Rio Tinto Group (NYSE: RIO) runs open pit and underground mines, mills, power stations, smelters, refineries, and research and service facilities.

15 Most Valuable UK Companies in the World

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