Japan's Sumitomo Metal Mining Co (SMM) said on Monday it has decided to discontinue a long-running feasibility study on a nickel processing plant project in Pomalaa, Indonesia because of a ...

Rio Tinto Plc (NYSE:RIO) shares are trading higher premarket on Monday after it finalized joint venture agreements with Sumitomo Metal Mining (SMM) to advance the Winu copper-gold project in Western ...

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