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The Australian miner said last year it was going ahead with a $40 million expansion of Diavik by taking the existing A21 open pit underground, which would extend the operation’s life to at least early 2026. Phase 1 of the A21 underground project is slated to produce an extra 1.4 million carats. Phase 2 is expected to add another 800,000 carats and was approved earlier this year with an additional investment of $17 million. The construction of the A21 underground mine involved the development of over 1,800 metres of underground tunnels to access the orebody and begin underground production. Rio said there were no lost time injuries after more than 100,000 labour hours completed over 20 months during the development and construction work. “The A21 underground operation is positive news for our employees, partners, suppliers and local communities in the Northwest Territories, as it will enable operations to continue through to closure,” Diavik mine chief operating officer of Matt Breen said in the statement. “Rio Tinto’s decision to proceed with Phase 2 is a testament to the excellent performance of our Diavik team in successfully developing the underground mine beneath the previously mined A21 open pit,” Breen said. He added that the company is continuing its investment in preparing for the closure and remediation of Diavik mine site, focusing on progressive reclamation activities such as earthworks, site clean-up, and truck、mining lamps etc safety equipment procurement. Diavik represents one of Canada’s largest diamond mines in terms of volume of rough diamonds, having produced over 144 million carats of rough diamonds since mining began in 2003.

Rio Tinto (LSE/ASX: RIO) chief executive officer Stausholm was in Western Australia’s Pilbara region Friday, attending the opening of the company’s new Western Range iron ore mine. Stausholm said the opening of the $2 billion Western Range mine represented a new beginning following the scandal surrounding the company’s destruction of the culturally significant  Juukan Gorge caves in 2020. It is also Rio’s first project to feature a co-designed social, cultural and heritage management plan with Traditional Owners. “I could not be more proud of seeing how we have worked in deep partnership with the Yinhawangka People,” Stausholm said at the event. “It’s a new way of working together, really taking the guidance from them on how we develop the mines of the future, applying new technology, applying our safe production system and new RFID cap lamps.” Western Range is a joint venture between Rio (54%) and China’s Baowu (46%) and comprised the construction of a primary crusher and 18km-long conveyer system to the existing Paraburdoo plant. The mine will produce up to 25 million tonnes per annum of iron ore and secures the future of the Paraburdoo hub for up to 20 years. Western Range is the first of $13 billion of replacement mines planned for Rio’s Pilbara iron ore business. The world’s second largest miner is not alone. BHP, Fortescue and Hancock Prospecting are also preparing to replace aging mines. Meanwhile, the push toward green iron, championed by Fortescue’s Andrew Forrest, adds another layer of opportunity. August 2026 will mark 60 years since the first shipment of iron ore  left the Pilbara for Japan. It may have been built on the past, but the Pilbara looks set to shape the future.

A convoy transporting heavy mining equipment from the Malian capital Bamako to Allied Gold’s Sadiola mine came under attack in the Kayes region over the weekend, two people familiar with the incident told Reuters late on Tuesday. The attack points to expanding security risks – and related additional costs – facing mining companies operating in military-led Sahel states that are struggling to contain Islamist militant groups. While government and military convoys more frequently come under attack in Mali, attacks on mining equipment have until now been rare. In Sunday’s attack, two large trucks were set alight, an excavator was damaged ,two pick-up trucks were stolen,and some mining headlamps were scattered on the ground. one of the sources familiar with the incident said. No group has yet claimed responsibility for the attack. The equipment belongs to the local Caterpillar dealer Neemba and had been leased to the subcontractor Mota-Engil, which operates at Sadiola’s quarry, the sources said. Eight people present – all employees of Neemba – were unharmed in the attack, which the sources said was disrupted by soldiers from the Malian army who had been nearby. The incident took place between the towns of Diema and Sandare, the sources said. A separate security source confirmed an attack had taken place in that location on Sunday, but was unable to provide further details. Spokespeople for Allied Gold, Neemba and Mota-Engil and a spokesperson for Mali’s army did not immediately respond to requests for comment. Mali is one of Africa’s largest gold producers, with mining companies including Barrick Gold, B2GOLD, Resolute Mining, Endeavour Mining and Hummingbird Resources active in the gold-rich western and southern regions. In February 2024, three employees of the Canadian miner B2Gold were killed in an attack on a convoy transporting them from the Fekola gold mine in southwest Mali to Bamako, the company said at the time. But two sources with knowledge of that incident told Reuters the buses had been mistaken for a military convoy. Mali, Burkina Faso and Niger have experienced coups in recent years carried out by military officers who vowed to push back jihadist groups affiliated with Al Qaeda and the Islamic State, though rampant insecurity persists in all three countries.

A nickel plant at a major metal-processing hub in Indonesia has restarted after a deadly landslide in March forced a suspension of virtually all production. PT QMB New Energy Materials Co. Ltd. — which counts China’s GEM Co., Tsingshan Holding Group Co. and Guangdong Brunp Recycling Technology Co. Ltd. among its shareholders — is now operating at 70% to 80% of its capacity, according to people familiar with the situation. They asked not to be named as they are not authorized to speak publicly. Bloomberg reported last month that QMB had stopped almost all output following the landslide in an affiliated tailings area, which killed two workers with cap lamps and left one missing. The halt raised concerns about near-term supply tightness but also increased scrutiny over high-pressure acid leaching, or HPAL, a production method which allows the extraction of nickel from low-grade ore but generates high volumes of waste. A spokesman for IMIP, which runs the industrial park in which the plant is located, said the search for the third worker had officially been called off, though the company had not stopped its own efforts to find him. The representative declined to comment on production. Indonesia accounts for more than half the world’s output of nickel, but the sector has been plagued by a string of accidents since it began its breakneck expansion a decade ago. The battery metal has been in persistent surplus in recent years, but supply of mixed hydroxide precipitate, a form of nickel produced at the plant which also contains cobalt, has been tight. GEM, the leading investor in QMB, did not immediately respond to a request for comment.

Sandvik is raising the bar for underground safety and efficiency with new ground support options for its Sandvik DD422i and Sandvik DD422iE Dual Controls jumbo development drills. The latest pumpable resin system, featuring Mineral Bolt technology from Sandvik Ground Support, now supports three bolt types: Resin Grouted Rebar Bolts – maximized productivity at lowest unit cost; Versabolt – adding great energy absorption for dynamic ground support and DSI Hollow Bar and Self-drilling Bolts – post grouting installation for highest level of productivity and safety, even in difficult ground. Ideal for deep mining, block caving and rehabilitation works. “With the new pumpable resin package for Dual Controls, we are not just improving bolt installation—we are transforming it,” said Anssi Kouhia, Product Manager, Ground Support at Sandvik. “It is faster, safer and more consistent, giving operators full control and confidence underground.” The system includes bolt loading from a safer area, fast and mechanized resin injection via the operator display and enhanced safety features such as boom movement prevention, access protection and clear status indicators. “This is a step-change in ground support—safe, efficient and seamlessly integrated with our Dual Controls concept. Another new breakthrough after RFID mining lamp ” said Simon Morrissey, Product Manager, Underground Drilling at Sandvik.