Metso Wins Processing Equipment Order for Yitirrti Copper-Zinc Plant

Advancing a high grade base metals project from a feasibility study to an operating mine involves solving a metallurgical puzzle that resource grade alone cannot answer. In the Pilbara, that puzzle has just moved a step closer to resolution.

Develop Global has locked in Metso as the technology partner supplying the primary processing equipment for its Yitirrti copper, zinc, and silver project, a move that sits inside a broader capital expenditure phase of roughly A$450 million.

The equipment selection arrives just weeks after the company awarded the major engineering, procurement, and construction (EPC) package, and it answers one of the hardest questions any polymetallic developer faces: can the ore actually be separated into saleable concentrates at scale?

This is a look at how the specific hardware package unlocks Yitirrti’s complex ore body, why a global commodity trader is funding it, and what a maintenance depot in Karratha means for the June quarter 2028 production target.

Solving the polymetallic processing puzzle at Yitirrti

On 17 August 2026, Develop Global awarded a A$275 million EPC contract to GR Engineering Services to design and build a 1.5 million tonnes per annum processing plant. Metso sits underneath that umbrella as the supplier of the core concentrator technology.

The equipment list is not decorative. It is built to attack a specific geological problem.

Yitirrti’s ore reserve stands at 8.8 million tonnes at 5.4% zinc, 1.1% copper, and 21 g/t silver. The challenge is that copper and zinc sulphides in this ore body are finely intergrown, which means the plant must perform selective sequential flotation: a process that separates the copper minerals from the zinc minerals in distinct stages rather than all at once. Get the crushing and grinding wrong, and recoveries drop or penalty elements contaminate the final product.

That is where the technology selection carries real weight. In polymetallic mining, the processing flowsheet is as decisive as the grade in the ground, and choosing a tier one original equipment manufacturer signals to institutional backers that the plant can hit offtake specifications with proven kit rather than experimental methods.

Selective sequential flotation is among the most technically demanding processing routes in base metals mining, requiring precise chemistry control and staged reagent addition to cleanly separate copper sulphides from zinc sulphides in a single continuous plant.

The table below maps each part of the Metso package to its job in the flowsheet.

Metso confirmed the order in a corporate release on 20 August 2026, booking it into its Minerals segment orders for the quarter ended 30 June 2026, a period in which the segment recorded aggregate orders of EUR 1,129 million. For Develop Global, the read is straightforward: the technical flowsheet now has hardware attached to it, which lowers the operational risk of missing concentrate quality once the plant fires up.

Trafigura funding and the Pilbara base metals push

An equipment order of this scale does not happen in a vacuum. It is the physical deployment of a much larger capital commitment.

Develop Global reached its Final Investment Decision in the June 2026 quarter alongside a binding US$400 million financing package from commodity trader Trafigura. The equipment procurement is the money starting to move.

Trafigura’s financing agreement with Develop Global, announced in June 2026, confirmed binding offtake for both copper and zinc concentrates alongside the senior loan facility, giving the project a guaranteed revenue path before construction reached full swing.

The package breaks down as follows:

• A US$350 million senior loan facility to fund construction
• A US$50 million warrant package
• Offtake agreements covering both copper and zinc concentrates produced at the plant

That offtake structure matters. When a global trader agrees to buy the concentrate before the first tonne is mined, it validates that the project’s output has a guaranteed home, which is exactly the assurance debt financiers want to see.

The timing tracks the wider commodity backdrop. Recent coverage put copper near all-time highs of around US$14,294 per tonne and zinc at multi-year highs near US$3,883 per tonne, pricing driven by electrification and grid expansion. Forecasts commissioned through bodies including the Association of Mining and Exploration Companies position copper and zinc as strategically essential to energy transition supply chains.

For you as an investor, the takeaway is not simply that a junior developer secured funding. It is that a major international trader is actively financing Pilbara polymetallic projects with strong definitive feasibility metrics, and that Western Australia’s mining heartland is broadening beyond iron ore into multi-commodity processing. The capital is voting on where the next decade of base metals demand lands.

Pilbara mining diversification beyond iron ore has drawn active policy support, with state-administered grants targeting local processing capability and downstream value capture as Western Australia positions itself for the next commodity cycle.

Why Karratha proximity anchors the operational timeline

Building the plant is one battle. Keeping it running for eight years in remote Western Australia is another, and this is where Metso’s selection carried a factor beyond the hardware itself.

Metso’s bid was heavily influenced by its A$52 million Karratha Service Centre, which opened in March 2024. The facility is Metso’s largest service centre globally, spanning a 35,000 square metre block with heavy-lift cranes rated up to 140 tonnes capacity, offering round-the-clock maintenance, repair, and refurbishment.

That proximity is a direct hedge against downtime. In a remote operation, a failed component that has to be shipped from overseas can idle a plant for weeks, and every idle day is lost revenue against a fixed debt schedule.

The choice reflects a broader shift in how mining equipment is bought and sold.

Regional service infrastructure has become a competitive differentiator for mining equipment suppliers targeting the Pilbara, with Weir’s purpose-built Hazelmere facility representing the same strategic logic as Metso’s Karratha hub: putting heavy-lift maintenance capacity close to the projects that depend on it.

Global equipment makers are moving away from one-off machine sales toward long-term lifecycle service partnerships, using regional maintenance hubs to deliver faster response times and continuous performance support. For a remote Pilbara operation, that local footprint is as strategic as the machinery it maintains.

For a junior developer that must keep the concentrator running to meet debt repayments and offtake obligations, having the largest global service centre for your specific equipment sitting in the same region is a genuine operational advantage. With first concentrate targeted for the June quarter of 2028, reliability is not a luxury. It is the thing that keeps the funding model intact.

Navigating the 24-month runway to first cash flow

Yitirrti now sits at the point where site earthworks, access roads, and power infrastructure meet incoming processing technology. The build phase is real, and the flowsheet has hardware behind it.

Management targets first concentrate in the June quarter of 2028, with the project projected to reach positive free cash flow less than two years after commencement. The major contracting decisions, EPC, equipment, and financing, are now largely settled.

That shifts the story. From here, execution becomes the primary metric investors will judge: whether the plant is delivered on time, on budget, and to specification. The strategy is set. The next 24 months are about proving it can be built.

Critical minerals demand is reshaping capital allocation across the mining sector, with project financiers and commodity traders increasingly treating copper and zinc as strategic assets rather than pure commodity positions, a reframing that explains why Trafigura’s Yitirrti commitment runs to US$400 million.

This article is for informational purposes only and should not be considered financial advice. Investors should conduct their own research and consult with financial professionals before making investment decisions.

Past performance does not guarantee future results. Financial projections are subject to market conditions and various risk factors, and forward-looking statements are speculative and subject to change based on market developments and company performance.