Geomechanics.io

Fortuna Mining has lifted Séguéla’s proven and probable reserves to 13 million tonnes at 2.81 g/t for 1.2 million oz. and doubled indicated resources to 6 million tonnes at 4.12 g/t, extending life of mine to 7.5 years and triggering expansion studies in Côte d’Ivoire. Technical work is assessing a 25% plant capacity increase from the 1.25 Mt/y 2023 design to 2–2.5 Mt/y, with low-capex debottlenecking targeting 1.75 Mt/y throughput in 2026. Kingfisher now contributes 3.5 Mt at 2.28 g/t in reserves and the Sunbird underground project holds 3.6 Mt at 4.34 g/t indicated, pending an underground mining study next month.

Mineral Resources has scrapped its mid-2026 succession deadline, keeping founder and managing director Chris Ellison in place while it designs a three-stage leadership transition with Korn Ferry and HR consultancy Xperience, shifting to a more traditional CEO-led structure and formalised executive team practices. New chairman Malcolm Bundey has led a full board refresh, adding four independent directors including former Origin Energy CFO Lawrie Tremaine and ex-Macmahon CEO Ross Carroll, plus a new director of governance and compliance. Strategically, MinRes is prioritising ramp-up of the Onslow Iron project, debt reduction, and a A$765 million sale of 30% of its lithium business to POSCO Holdings.

Northern Graphite has halted mining and milling at its Lac des Iles operation in Quebec after a mill bearing failure, using the four- to six-week replacement window to pull forward January maintenance tied to a new pit development. The 35-year-old mine, North America’s only graphite producer, currently outputs about 15,000 tonnes of concentrate annually with installed capacity of 25,000 tonnes, and is advancing a Phase 1 pit expansion supported by C$6.22 million in federal funding. Mining has already reached the permitted 209 m elevation, and inadvertent blasting slightly below this level has paused pit operations pending impact checks and a minor permit amendment, risking a two- to three-month production gap before the new pit starts, targeted for Q2 2026.

Allied Critical Metals has tripled measured and indicated resources at its Borralha tungsten project in northern Portugal to 13 million tonnes at 0.21% WO₃, plus 7.7 million tonnes inferred at 0.18% WO₃, following 4,210 metres of Phase 1 core drilling in the Santa Helena Breccia. The 3.8 sq. km brownfield site previously produced over 10,280 tonnes of wolframite concentrate at an average 66% WO₃ between 1904 and 1985, giving strong reconciliation data for future mine design. A PEA and key environmental and permitting decisions are targeted for Q1 2026.

Rio Tinto will cut output at its Yarwun alumina refinery in Gladstone by 40% from October 2026, removing about 1.2 million tonnes per year from the market to extend the plant’s life to 2035 amid alumina prices around $340 per tonne, less than half last year’s $800 spike. The move is driven by tailings-storage constraints, with the existing facility projected to hit capacity by 2031 and a second storage area deemed uneconomic in current conditions. About 180 of 725 jobs will be affected as Rio trials adjusted deposition patterns, higher compaction and drying efficiencies, and enhanced residue stacking to safely increase containment capacity.

American Rare Earths has lifted the Cowboy State mine resource within the Halleck Creek project in Wyoming to about 547.5 million tonnes at a 1,000 ppm TREO cut-off, following 18 new channel samples and expanded geological mapping. Around 63.9 million tonnes have been upgraded from inferred to indicated, and two new Wyoming Department of Environmental Quality permits allow 27 in-fill drill holes to support prefeasibility and subsequent technical studies. The project also benefits from up to $7.1 million in state-backed, non-dilutive funding to advance mine development.

Ivanhoe Mines has officially opened the $2 billion Platreef platinum-palladium-rhodium-gold mine in Limpopo, feeding first ore to the stage-one concentrator on 29 October and producing first concentrate during the ribbon-cutting attended by President Cyril Ramaphosa. The operation targets about 100,000 oz per year of PGMs plus gold from the 18–26 m thick Flatreef orebody using mechanised bulk mining, with economic studies indicating an after-tax NPV (8%) rising from $1.4 billion to $3.2 billion and IRR from 20% to 25% as stages two and three come online. Local protests over jobs and benefits, despite over 2,000 nearby residents already employed and a 26% broad-based Black economic empowerment stake, signal ongoing scrutiny as expansions proceed into a platinum market WPIC now sees swinging from a 692,000-oz 2025 deficit to a 20,000-oz surplus in 2026.