DiamondBuzz
Angola, Botswana eye stake in De Beers
Botswana is pushing to secure a majority stake in De Beers by October, President Duma Boko confirmed. The country, reeling from a prolonged diamond slump, is negotiating financing with Oman’s sovereign wealth fund and other partners to raise its shareholding beyond the current 15%. ANGOLA has submitted a bid for a minority stake in De Beers, proposing to establish a pan-African consortium of diamond-producing nations to jointly operate the world-renowned company currently being sold by Anglo American.
President Duma Boko said his government intends to finalize a deal by the end of October, despite ongoing negotiations between Anglo and other potential buyers. He confirmed Botswana is in talks with partners, including Oman’s sovereign wealth fund, to help finance the deal.
Securing a controlling stake would raise Botswana’s interest in De Beers above 50%. The company sources about 70% of its rough diamonds.The Financial Times reported that Endiama, Angola’s state-owned diamond producer, had made a “fully financed offer”, seeking to create a partnership that would also involve Botswana, Namibia, and South Africa.
Separately, Angola has submitted a formal bid for a minority stake in the loss-making miner, valued between $3 billion and $4 billion. The moves come as Anglo American faces mounting pressure to divest De Beers ahead of an informal year-end deadline. Angola’s proposal is for De Beers to remain a private company in which African countries have a stake.
DiamondBuzz
Rio Tinto’s Diamond Division Posts $79 Million EBITDA Loss in 2025
Higher output from Canada’s Diavik Diamond Mine offsets revenue decline, but end-of-life pressures continue to weigh on performance.
Rio Tinto reported a challenging year for its diamond business in 2025, posting an underlying EBITDA loss of $79 million despite improved revenues. While the loss narrowed compared to the $115 million deficit recorded in 2024, the division remained under pressure amid a global diamond market slowdown and the nearing closure of its last active mine.
Annual revenue rose 19% to $332 million, supported by stronger production at the Diavik mine in Canada, Rio Tinto’s only remaining diamond operation. Output climbed 61% to 4.4 million carats, driven by the ramp-up of mining activities in the underground section of the A21 deposit, which began scaling up in late 2024.
However, the A21 underground ore body is expected to be depleted by the end of the first quarter of 2026, marking the end of Diavik’s operational life. The company plans to spend approximately $1 billion this year on closure activities related to Diavik, as well as rehabilitation work at the former Argyle Diamond Mine, which ceased production in 2020, and other non-diamond projects.
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