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South32 (ASX: S32) has lifted Taylor growth capital at its Hermosa project in Arizona by $1.5b (US$1.1b), while pushing first production out to the second half of FY28.
International
South32 flags $1.5b Hermosa cost blowout
South32 (ASX: S32) has lifted Taylor growth capital at its Hermosa project in Arizona by $1.5b (US$1.1b), while pushing first production out to the second half of FY28.  Pre-production capital expenditure has been brought up to about US$3.3b, with the miner citing scope changes, higher construction costs and broader inflationary pressures including the impacts of US tariffs.  South32 now expects Taylor’s 4.3mtpa processing plant to achieve nameplate capacity by FY31. The delay has been attributed to contractor performance and productivity challenges in shaft construction, with mitigation measures only partially offsetting impacts on development timelines.  Despite the changes, South32 said updated studies continue to support Taylor as a large-scale, long-life underground operation, with an initial operating life extended to about 33 years, up from 28 years at final investment approval. The project is expected to deliver about 10.4mt of zinc equivalent production over its life, including 3.7mt of zinc, 4.6mt of lead, and 247moz of silver, with steady-state production averaging about 346,000tpa of zinc equivalent.  At steady state, the project is expected to generate average annual EBITDA of US$650m, with a post-tax net present value of about US$3.1b, based on long term pricing assumptions. Hermosa, which also includes the Peake copper deposit and Clark battery-grade manganese deposit, is positioned as a regional-scale development with potential to supply critical minerals across multiple decades.  
Westgold Resources (ASX: WGX) reported strong cash generation in Q3 FY26, bolstered by a rising gold price, while maintaining full-year production guidance.
Projects & Operations
Westgold builds cash despite softer production
Westgold Resources (ASX: WGX) reported strong cash generation in Q3 FY26, bolstered by a rising gold price, while maintaining full-year production guidance.The company produced 93,145oz of gold during the quarter, bringing year-to-date output to 288,500oz, with production impacted by lower head grades and reduced contribution from ore purchase agreements compared to the previous quarter.Westgold maintains its FY26 production guidance of 345,000-385,000oz, with operations expected to strengthen in the June quarter following improved mining conditions.All-in sustaining costs were $2931/oz excluding ore purchase agreements while AISC including ore purchase agreements fell to $3338/oz from $3466/oz. Full-year costs are expected to land towards the upper end of guidance, reflecting inflationary pressures and operational decisions aimed at maximising cash flow.A key highlight of the quarter was Westgold’s cash performance, with the company delivering an underlying cash build of $285m and closing the period with $856m in cash, bullion and liquid investments, up $202m quarter-on-quarter.Operationally, performance across the portfolio was mixed. Lower production reflected reduced grades from the Starlight mine, lower ore purchase volumes in the Murchison and temporary ventilation constraints at Beta Hunt which have since been addressed.Mining productivity improved across several operations, with underground equipment performance lifting and stockpiles building across the Murchison hubs, positioning the company for stronger output in the June quarter.Westgold continued to advance growth initiatives during the period, including approving a final investment decision for the Higginsville expansion, which will increase processing capacity to 2.6mtpa.The company is also progressing Bluebird-South Junction and Beta Hunt as cornerstone assets for future growth.Westgold strengthened its balance sheet, establishing a $600m unsecured credit facility, while remaining debt free and unhedged retaining full exposure to the gold price.
The quarry proposal was referred to the WA EPA almost 10 years ago.
Politics & Regulation
WA EPA rejects sand and limestone quarry
The WA Environmental Protection Authority (EPA) has recommended against a proposal to extract sand and limestone from a quarry at Preston Beach.The proposal, from Carlo Doyle’s Haulage, would involve extraction, screening and crushing, as well as grading and maintenance of Preston Beach North Road for haul truck access.The majority of material proposed for extraction would be used for the supply of agricultural lime.WA EPA chair Darren Walsh says the proposed quarry area is bordered on three sides by the Yalgorup National Park, an internationally recognised Class A Conservation Reserve and the second largest National Park on the Swan Coastal Plain.“The natural features of the Park are of high social significance, and the area is a popular recreation and camping destination for nature-based tourism,” he said.“Monthly visitor numbers are upwards of 70,000 during peak holiday periods and a single, unsealed access road made amenity impacts a key consideration during this process.“During what has been an unusually lengthy environmental impact assessment, largely due to the proponent’s delays in providing adequate information, the EPA encouraged the company to take measures to mitigate impacts.“However, while they made an effort to address haulage impacts, adequate mitigation measures were not provided, and it was beyond the proponent’s authority to undertake the management of third party-operated haul truck activities on a public road.”Mr Walsh said such management was necessary to ensure that the public’s enjoyment of the values of the national park was protected.“So in this case the EPA believes that noise and dust from combined quarry operations and truck haulage will result in unacceptable environmental impacts,” he said.Two-way haul truck movements associated with the proposal, seasonally between December and April, were estimated at up to 44 per day for the 20-year life of the quarry, according to the WA EPA.The report is now open for a three-week public appeal period, closing May 21, 2026, with the Minister for the Environment making the final decision on the proposal.
Off the Record: The panic buying paradox
Opinion
Off the Record: The panic buying paradox
Humans innately desire predictability. During times of crisis, it’s only natural to seek a sense of control in an unpredictable environment.While the concept of preparedness is part of our basic survival instincts, it took root as a broader movement during the Cold War as fears of nuclear annihilation ran rampant.During this time, the US Government encouraged citizens to build fallout shelters and schools even ran bomb drills — not that there’s much anyone can do to survive a mushroom cloud.Out of this anxiety, a survivalist movement grew.Survivalists, or doomsday preppers, are traditionally associated with extremism in the form of right-wing conservatism and radical anti-government conspiracy theories.The stereotypical survivalist is a white, backcountry, conservative male who may or may not also be bordering on deranged. However, as anxiety about the state of the world rises, the number of preppers globally are growing and as a result, the demographic is changing.During the height of the COVID-19 pandemic, prepping moved from a fringe culture to a mainstream response — and one that kind of seemed reasonable.With the cost of living rising and supply chains being frequently disrupted by geopolitics and extreme weather events, this movement is growing in popularity as everyday people seek self-reliance.Though the average person is unlikely to have months’ worth of supplies stockpiled in a bunker in case of complete societal collapse, they now tend to err on the side of caution.This is evident if you grab an extra carton of eggs when the shelves look a little sparse. Or if you decide to head down to the servo and fill up after reports that fuel prices are going to jump over night.These seem like perfectly reasonable decisions. The problem is when individual rationality morphs into collective irrationality.What starts out as a handful of somewhat sensible people taking minor proactive measures can quickly escalate into many people making the same decisions simultaneously. And when that feared scarcity is unfounded rather than genuine, panic buying can create the very shortages it is intended to insulate against as collective action overwhelms fragile systems.This is the panic buying paradox. And we are seeing it in real time with fuel supplies.People are rushing to buy fuel because they think it will run out, and it’s running out because they are rushing to buy it.At an industry event this morning, Prime Minister Anthony Albanese called panic buying “pretty bloody stupid”. Despite this sentiment, when I see others filling up portable fuel tanks at the bowser, I am overcome with a nagging sense that those people know something I don’t.Present concerns are understandable with Iran’s effective closure of the Strait of Hormuz driving crude oil prices well above US$100 a barrel.The Philippines have already declared a national emergency due to severe fuel shortages. And in Australia, fuel prices have increased by about 40% since the start of the war.Most Australians don’t panic buy or hoard supplies; they buy a little extra “just in case”. Are you buying an extra packet of toilet paper when the shelves look a little low? That seems reasonable when you remember the COVID-19 toilet paper crisis of the not-so-distant past. Are you a mobile business owner that just saw media coverage suggesting fuel could be 40% more expensive tomorrow? You might want to grab your keys and fill up. On second thought, grab your jerry can too.The problem isn’t that these decisions are irrational; it’s that these “just-in-case” purchases are combining with a “just-in-time” supply chain. This means stock is on trucks, not in back rooms. This keeps costs low, but it also assumes tomorrow will look exactly like today. Even a small shift along the supply chain can look like a complete system failure.During the pandemic, we saw what happens when supply chains fail to absorb external shock. Those wounds are barely healed. As a new crisis looms, it’s understandable that people want to take matters into their own hands.A perceived lack of transparency, fairness and compassion from decision-makers during unprecedented crisis eroded Australian’s confidence in their governments ability to protect them. Many Australians now are untrusting of the government to plan for times of crisis. Fairly so. The pandemic demolished public trust.Australia sits at the end of a very long and fragile fuel supply chain. Much of what we consume passes through the Strait of Hormuz off the coast of Iran. The cascading effects of the war are now dramatically interfering with our supply chains.Rather than labelling people queuing at petrol stations as irrational, we should acknowledge that we don’t know their personal circumstances. We don’t know if their livelihood depends on their access to a vehicle. We don’t know if the fuel will be used to run essential generators. Possibly most importantly, we don’t know if they have the capacity to absorb a 40% rise in fuel prices.Even if you think doomsday preppers are batty and panic buying is “un-Australian”, the lesson isn’t that people are irrational: it’s that our supply chains are ineffective.Neither survivalism nor panic buying is inherently evil. But neither is virtuous if it comes at the expense of others. The goal shouldn’t be to outlast everyone else in a crisis — it should be to build a society where there is no need to stockpile in the first place.Although politicians are urging the public not to panic, they risk encouraging the opposite effect and further fostering fear. It seems the next plight the government faces is a crisis of trust.Off the Record is The Australian Mining Review’s weekly column. 

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