South32 completes ferronickel sale

Rio Tinto (ASX: RIO) paid $14.3b globally in taxes and royalties during 2025 according to its most recent Taxes and Royalties Paid Report. Of the total taxes and royalties paid, $9.5b was paid in Australia — including corporate tax paid of $5.8b — and significant payments were also made in Chile, the US, in Mongolia and Canada. Higher tariffs on primary aluminium exports from Canada to the US, including the removal of the 10% tariff exemption from March 2025, resulted in about $1.45b  in additional tax payments in the US.  Higher profits at Escondida resulted in higher corporate tax payments in Chile and increased copper production and prices at Oyu Tolgoi resulted in higher royalty payments in Mongolia. Rio Tinto chief financial officer Peter Cunningham says the taxes and royalties Rio pays to governments are an important contributor to the economic health and development of the regions where it operates. “We seek to operate responsibly everywhere we work,” he said.  “Our payments to governments can be significant for national budgets and to support development priorities, while our voluntary social investment also allows communities to invest in their own social and economic development for years to come. “We continue to be a leader in transparent tax reporting, voluntarily publishing detailed information on our taxes and royalty payment to governments for over 15 years." Rio also spent a record $19.7b with more than 6,000 Australian suppliers in 2025 — a $2b increase on the previous year. $12.1b of that was spent with WA suppliers as Rio advances development of its replacement mines in the Pilbara. A record $1.1b was spent with Indigenous businesses, including A$820m with Traditional Owner businesses. Rio Tinto iron ore chief executive Matthew Holcz says Rio’s suppliers are fundamental to its operations.  “We are proud to acknowledge the vital role these Australian businesses play in creating jobs, strengthening local economies and supporting our business,” he said. "Stronger local supply chains build stronger communities, and in turn, a stronger nation.”

Brightstar receives major approval for Goldfields project Brightstar (ASX: BTR) has received approval from the WA Government for the open pit development of the Lady Shenton project in Menzies.With the Mining Development and Closure Proposal approved by the WA Department of Mines, Petroleum and Exploration and the previously approved Native Vegetation Clearing Permit, the Lady Shenton deposit is now “mine ready” for production.Brightstar managing director Alex Rovira comments on the approval.“This signifies a key milestone for the development of our Menzies assets, which once in operation will represent the first mining to occur since the successful Selkirk mining JV in 2024,” he said.“Lady Shenton is now ‘mine ready’ and represents a low capex, high-margin deposit for Brightstar that complements the broader Goldfields Hub development.“With over 4moz of mineral resources on granted mining leases, Brightstar has a strategic objective of developing both the Goldfields and Sandstone projects in the coming years as part of our aspiration to be a multi-asset, mid-tier scale WA gold producer.”Brightstar plans to release an updated definitive feasibility study (DFS2.0) and a development update and timeline for the Menzies and Laverton gold projects later this quarter.

Northern Star Resources (ASX: NST) has flagged a further downgrade to its full-year gold guidance following weaker performance in the last two months and throughput issues at KCGM.The miner has warned that achieving even the bottom end of its 1.6–1.7moz guidance range is now “challenging”.Northern Star says its current best estimate is for FY26 production to exceed 1.5moz, after weaker-than-expected January and February performance caused by ongoing throughput constraints at the existing KCGM mill and lower mining productivity, especially at Jundee.The update marks a further deterioration from the cuts announced in January, when the company reduced group production guidance, raised AISC guidance and lowered KCGM’s expected output.In an investor call, Northern Star managing director and chief executive Stuart Tonkin said he recognised that, externally, it may appear the company had not been forthcoming with information.“That’s not the case,” he said.“In January, we absolutely thought 1.6moz was a very comfortable floor we would clear.“So to be sitting here as soon as now to say things aren’t going well, I get it, it’s as disappointing for us as it is our audience and we have to learn from that.”Until the expanded KCGM mill comes online, operations remain dependent on the existing mill, which has been struggling to maintain steady performance.Northern Star says the mill expansion remains on track for commissioning in early FY27.The miner will now undertake an operational review at Jundee, aimed at reducing costs and prioritising higher-margin ounces.“Front of mind for management and the board is that efforts to achieve the FY26 forecast do not compromise the transition to the new plant and have negative implications for Q1 next year,” Mr Tonkin said.“To deal with that concern, management’s focus over the next four months will be to set the company up to achieve its full potential from the start of FY27 and not on the achievement of short-term guidance above all else.“The production focus over this period will be on extracting ounces in the most effective way, from both a cost and mining efficiency perspective.”On the positive side, Northern Star said mining volumes at KCGM were tracking well, with ROM stockpiles continuing to build to about 100koz of high-grade ore at the end of February. The miner said this material would  be processed in FY27, displacing lower-grade ore.

Rio and Glencore at it again with mega merger talks  Mining majors Rio Tinto (ASX: RIO) and Glencore have confirmed they have entered preliminary takeover discussions for a merger that could create the world’s largest resources company.This is not the first time Rio and Glencore have been in merger negotiations. In 2024, discussions between the companies were unsuccessful due to valuation, leadership and cultural differences after Glencore sought a merger ratio of about 40%, implying a premium of more than 25% based on valuation at the time, and pushed for chief executive Gary Nagle to lead the combined company.  If successful, the merger would be the latest major transaction seen by the sector following last year’s Anglo American $85b merger and acquisition with Canadian copper miner Teck Resources.  The current preliminary discussions are exploring possible combinations of some or all of the businesses, which could include an all-share merger between the companies. Copper appears to be the focal point of the merger as Rio moves towards becoming a global copper leader and acquiring Glencore’s substantial copper assets, including its Mount Isa operations in Queensland, aligns strategically with this shift. This news is the latest in a wave of copper acquisitions as companies around the world look to take advantage of growing global demand and soaring prices. Rio has been advancing its copper portfolio, including ramping up operations at Oyu Tolgoi in Mongolia and pushing progress at Resolution Copper in the US. Rio expects to produce about 870,000t of copper in FY26, underpinned by production at its Oyu Tolgoi — which is anticipated to reach peak production of 500,000tpa in its lifetime — as well as its copper assets across the Americas.  Glencore’s copper outlook for FY26 is almost identical, with production expected to reach between 810,000 - 870,000t, and has a bullish growth outlook of 1.6mtpa by 2035.  Despite the shift in focus to copper, there is little synergy between the two miners' current operations — with iron ore forming the backbone of Rio’s business and Glencore remaining one of the world’s largest coal producers. Considering Rio unloaded the last of its coal assets in 2018 following investor pressure, how Glencore’s significant coal assets will align with Rio’s future is yet to be determined.  Though there is no certainty that an agreement will be reached, Rio has until February 5 to make a formal offer to Glencore.