Barrick confirmed chairman John Thornton met President John Magufuli for talks Wednesday, but didn't mention the details of what, if anything, had been agreed.
Gemfields, which mines for emeralds and amethysts in Zambia and for rubies in Mozambique, had already received a buyout offer from largest shareholder Pallinghurst Resources.
Trump’s measures to revitalize the mining industry are steps on the right direction, and they will benefit not just the US, but also Canada, said Max Porterfield.
Chinese-owned Yancoal has signalled it may raise its bid for Rio Tinto's Hunter Valley coal assets, after striking the agreement with Mitsubishi to buy its stakes in the same mines.
The mine, which began operations last month, is expected to produce 600,000 to 700,000 tonnes of potash this year and 2 million tonnes per year once at full capacity.