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Diamonds(1) (000 carats) Q4 2025 Q4 2024 Q4 2025 vs. Q4 2024 Q3 2025 Q4 2025 vs. Q3 2025 2025 2024 2025 vs. 2024 Botswana 1,881 4,244 (56)% 6,030 (69)% 15,134 17,935 (16)% Namibia 459 584 (21)% 457 0% 2,082 2,234 (7)% South Africa 496 550 (10)% 659 (25)% 2,230 2,166 3% Canada 949 456 108% 511 86% 2,210 2,377 (7)% Total carats recovered 3,785 5,834 (35)% 7,657 (51)% 21,656 24,712 (12)% (1) Production is on a 100% basis, except for the Gahcho Kué joint operation which is on an attributable 51% basis. Operational Performance The mining business delivered strong operational performance at lower output levels as the business produced into prevailing levels of demand. Rough diamond production in the fourth quarter decreased by 35% to 3.8 million carats, primarily due to the maintenance shutdowns at Jwaneng and Orapa. As a result of these maintenance shutdowns, Botswana production decreased 56% to 1.9 million carats. Jwaneng was offline as planned for the entire quarter after optimising plant utilisation ahead of this maintenance period, while Orapa conducted a maintenance shutdown in October. The operations will continue to prioritise cost management by maintaining a balance between optimal plant throughput and maintenance downtime. Namibia's production decreased by 21% to 0.5 million carats as a result of scheduled maintenance on two vessels, along with extended in-port time to install a next-generation subsea crawler on the Benguela Gem (diamond recovery vessel). Additionally, two vessels were decommissioned earlier in the year as part of the company’s strategic response to prevailing industry conditions. In South Africa, production decreased by 10% to 0.5 million carats, as a result of planned plant maintenance. Production in Canada increased to 0.9 million carats as Gahcho Kué accessed new ore from the latest cut at the mine following its initial waste stripping phase. Trading Performance Rough diamond trading conditions continued to be challenging in the quarter amid persistent industry, geopolitical and tariff uncertainty. Rough diamond sales from three Sights in Q4 2025 totalled 5.9 million carats (5.4 million carats on a consolidated basis)(1) generating consolidated rough diamond sales revenue of $571 million - higher than Q4 2024 rough diamond sales which totalled 4.6 million carats (4.3 million carats on a consolidated basis)(1) generating $543 million of consolidated rough diamond sales revenue. The full year consolidated average realised price declined by 7% to $142/ct, primarily driven by a 12% decrease in the average rough price index and the impact of stock rebalancing initiatives, partially offset by stronger demand for higher value stones across the year as a whole. However, the Q4 realised price was impacted by the sales mix, which saw a higher proportion of lower value goods being sold. The average rough price index does not reflect the effect of stock rebalancing actions. The equivalent price index reduction including the impact of stock rebalancing actions would be a 25% decrease year-on-year. The Group is undertaking an impairment review of De Beers’ carrying value, assessing the impact of diamond market conditions, which could potentially lead to an impairment at the full year results. Guidance Production(2) guidance for 2026 is revised to 21–26 million carats (100% basis) (previously 26-29 million carats), in response to the challenging rough diamond trading conditions. De Beers continues to monitor rough diamond trading conditions in order to align output with prevailing demand. As previously announced, Anglo American continues to pursue a dual track separation for De Beers and a structured sale process is currently under way. (1) Consolidated sales volumes exclude De Beers Group’s JV partners’ 50% proportionate share of sales to entities outside De Beers Group from the Diamond Trading Company Botswana and the Namibia Diamond Trading Company, which are included in total sales volume (100% basis). (2) Production is on a 100% basis, except for the Gahcho Kué joint operation which is on an attributable 51% basis. Diamonds(1) Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q4 2025 vs. Q4 2024 Q4 2025 vs. Q3 2025 2025 2024 2025 vs. 2024 Carats recovered (000 carats) 100% basis (unless stated) Jwaneng 0 3,151 1,859 2,249 1,002 n/a n/a 7,259 6,779 7 % Orapa(2) 1,881 2,879 792 2,323 3,242 (42) % (35) % 7,875 11,156 (29) % Total Botswana 1,881 6,030 2,651 4,572 4,244 (56) % (69) % 15,134 17,935 (16) % Debmarine Namibia 286 303 385 461 395 (28) % (6) % 1,435 1,625 (12) % Namdeb (land operations) 173 154 150 170 189 (8) % 12 % 647 609 6 % Total Namibia 459 457 535 631 584 (21)% 0 % 2,082 2,234 (7) % Venetia 496 659 592 483 550 (10) % (25) % 2,230 2,166 3 % Total South Africa 496 659 592 483 550 (10) % (25) % 2,230 2,166 3% Gahcho Kué (51% basis) 949 511 361 389 456 108 % 86 % 2,210 2,377 (7) % Total Canada 949 511 361 389 456 108 % 86 % 2,210 2,377 (7) % Total carats recovered 3,785 7,657 4,139 6,075 5,834 (35) % (51) % 21,656 24,712 (12) % Total sales volume (100%) (000 carats)(3) 5,941 5,715 7,555 4,715 4,647 28 % 4 % 23,926 19,412 23 % Consolidated sales volume (000 carats)(3) 5,383 4,558 6,815 4,190 4,273 26 % 18 % 20,946 17,883 17 % Consolidated rough diamond sales value ($m)(4) 571 700 1,185 520 543 5 % (18) % 2,976 2,720 9 % Average price ($/ct)(5) 106 154 174 124 127 (17) % (31) % 142 152 (7) % Average price index(6) 94 94 94 94 100 (6) % 0 % 94 107 (12) % Number of Sights 3 2 3 2 4(7) 10 10 (1) Production is on a 100% basis, except for the Gahcho Kué joint operation which is on an attributable 51% basis. (2) Orapa constitutes the Orapa Regime which includes Orapa, Letlhakane and Damtshaa. Letlhakane was placed on care and maintenance March 2025, and Damtshaa has been on care and maintenance since 2021. (3) Consolidated sales volumes exclude De Beers Group’s JV partners’ 50% proportionate share of sales to entities outside De Beers Group from the Diamond Trading Company Botswana and the Namibia Diamond Trading Company, which are included in total sales volume (100% basis). (4) Consolidated rough diamond sales value includes De Beers Group's 50% proportionate share of sales to entities outside De Beers Group from Diamond Trading Company Botswana and the Namibia Diamond Trading Company. (5) Consolidated average realised price based on 100% selling value post-aggregation. (6) Average of the De Beers price index for the Sights within the period, which excludes the effect of the stock rebalancing actions in 2025. The De Beers price index is relative to 100 as at December 2006. (7) In Q4 2024, Sight 7 and 8 were combined into a single selling event due to challenging trading conditions.

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