Botswana is exploring the possibility of increasing its stake in De Beers, President Duma Boko said on November 10 in his State of the Nation Address in Gaborone. The move comes as Angola has also signalled interest in acquiring shares in the diamond producer, according to Reuters reporting.

Botswana currently holds 15% of De Beers through the Debswana joint venture, which is shared 50/50 with De Beers and supplies about 70% of the company’s annual rough diamond output. Boko described De Beers as a strategic national asset, despite a downturn in global diamond demand and prices over the past year.

“It is in this regard that concrete steps are underway towards the acquisition of Anglo American’s shares in De Beers,” Boko said, without disclosing transaction structure, valuation method or timetable.

Anglo American (LON:AAL; JSE:AGL) owns 85% of De Beers and has been considering a sale of the stake, as part of a corporate realignment to prioritise copper and other energy-transition minerals. Reuters has reported that Anglo American values De Beers at around $4.9bn, though any sale price would depend on market conditions.

The prospect of Angola seeking a stake arose after a meeting between the two countries’ mining ministers in Gaborone on November 7, which Reuters reported included discussions about possible share acquisition. Angola has not announced a formal bid, and Botswana has avoided characterising the matter as competitive.

Analysts say any increase in Botswana’s ownership would likely require state-backed financing, participation by sovereign investment funds, or external partners, given the scale of the stake involved. It also remains unclear whether Botswana aims for a majority position or a larger but still joint ownership model.

Diamond sales remain central to Botswana’s export earnings, fiscal revenue and foreign exchange reserves, even as the government seeks to broaden the mineral economy. Boko said diamonds will remain a core driver of growth over the medium term.

Further developments will depend on valuation negotiations, regulatory approvals, financing capacity and Anglo American’s divestment timetable.

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