Rio Tinto






Gren Thomas (left) at North Arrow Minerals' Loki project. Credit: North Arrow Minerals

Diamonds an enduring passion for Gren Thomas

Even though prospecting for diamonds in Canada no longer elicits the electrifying buzz of the 1990s when juniors were uncovering the country’s first diamond mines, the rationale for exploration is…


US markets end lower, April 2-6

Concerns over a U.S.-China trade war mounted after U.S. President Donald Trump suggested imposing another $100 billion in tariffs on Chinese imports. The Dow Jones Industrial Average fell 0.71% to…


The massive Oyu Tolgoi copper-gold operation in Mongolia. Credit: Rio Tinto.

Rio Tinto deepens presence in Mongolia

A week after the Mongolian government hit Turquoise Hill Resources (NYSE: TRO) with a US$155-million tax bill associated with the Oyu Tolgoi copper-gold mine, Rio Tinto (NYSE: RIO; LON: RIO),…



The Star-Orion South diamond project, in Saskatchewan. Credit: Shore Gold

Shore finds potential partner in Rio Tinto

As recently as 2012, mining giant Rio Tinto (NYSE: RIO; LSE: RIO) had been publicly considering exiting the diamond space. But the company, which operates and owns 60% of the…




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