Thiess and Harmony on 12 December 2025 announced a A$700 million, five-year alliance to build and run key infrastructure at the Eva Copper Project near Cloncurry in north-west Queensland. The arrangement lays the groundwork for what is expected to become the state’s largest copper operation when full mining begins in June 2026.
The alliance brings together Thiess’s contract-mining expertise and Harmony’s project ownership to deliver a suite of work packages—ranging from bulk earthworks to technical services—through June 2031. Company statements describe the deal as a strategic response to surging demand for critical minerals and a template for more collaborative, risk-sharing partnerships in Australia’s resources sector.
Situated about 75 kilometres north-east of Cloncurry, the open-pit Eva mine is designed to produce roughly 60,000 tonnes of copper and 14,000 ounces of gold each year. By pairing the operational muscle of one of the world’s largest mining services providers with Harmony’s growing Australian portfolio, the partners aim to accelerate delivery schedules, streamline costs and embed sustainability measures from the outset of construction.
Five-year scope worth $700 million
Under the alliance Thiess will carry out bulk earthworks, construct a mine workshop, and provide mine planning, drilling and blasting, mobile-equipment maintenance and other technical services according to the contractor. The work is valued at about A$700 million over the life of the agreement and is scheduled to run for five years once site mobilisation begins, Thiess said.
Harmony separately confirmed the scale and term of the deal, noting that the arrangement also allows the joint team to expand or modify work packages as the project advances Australian Mining reported.
How the alliance model works
Instead of a conventional, fixed-price mining services contract, the partners have adopted a collaborative model featuring shared performance metrics, joint decision-making and incentive structures tied to cost and schedule outcomes. According to project documentation, the framework spreads risk between client and contractor, enabling faster responses to changing market conditions or technical challenges.
Thiess will integrate its digital fleet-management and scheduling systems with Harmony’s planning tools, allowing real-time adjustments to drilling, blasting and ore-movement targets. The alliance board—comprising senior executives from both firms—oversees safety, cost, production and sustainability goals throughout the construction and production ramp-up phases.
Strengthening critical-minerals supply chains
Beyond immediate project delivery, the Eva Copper alliance is positioned as a building block in Australia’s efforts to shore up supply chains for energy-transition metals. Copper is a cornerstone material for electric-vehicle batteries, renewable-energy installations and power-grid upgrades. Harmony and Thiess said the partnership was designed “to enhance supply-chain resilience and support Australia’s critical minerals strategy” while also fostering local economic development and community engagement Felix Project News reported.
The Eva mine is expected to deliver roughly 300,000 tonnes of copper concentrate over its first five years, feeding domestic manufacturers and export markets hungry for low-carbon infrastructure components. Gold produced as a by-product will diversify revenue streams and improve overall project economics, the companies added.
Regional jobs and community investment
Project planners estimate the build-out will create several hundred direct construction roles and sustain more than 500 operational positions once steady-state mining begins. Recruitment programs will prioritise local communities, including initiatives to increase Indigenous participation and upskill apprentices in heavy-equipment maintenance and environmental monitoring.
In addition, the alliance partners have signalled commitments to procure goods and services from businesses in Cloncurry, Mount Isa and broader north-west Queensland wherever practicable. Community-benefit agreements under negotiation are expected to fund education, health and infrastructure projects during the mine’s 15-year design life.
Timeline to first ore
Bulk earthworks are scheduled to start in the second quarter of 2025, followed by workshop construction and installation of the primary crusher. Pre-strip activities will prepare the Little Eva and Blackard pits for ore extraction ahead of a June 2026 commissioning target. Over the subsequent five years, Thiess will continue to manage load-and-haul fleets, blasting operations and technical services under the alliance before handing over certain functions to Harmony’s internal teams.
Environmental and sustainability commitments
The partners say the alliance format embeds environmental stewardship from day one. Planned initiatives include progressive rehabilitation of waste-rock dumps, utilisation of high-efficiency electric-drive haul trucks where possible, and trialling of solar-powered dewatering systems. Water-management plans are being finalised to ensure that nearby waterways such as the Cloncurry River are protected from sediment run-off and chemical exposure.
Market backdrop: copper in high demand
Consultancies forecast that global copper demand could double by 2035 as electric-vehicle production scales and renewable-energy installations proliferate. Australia’s federal Critical Minerals Strategy identifies copper as a priority metal, and states such as Queensland have sought to expedite permitting processes for responsibly developed mines. By entering construction now, Eva could reach commercial production just as deficits emerge in the global refined-copper market, providing the venture with favourable pricing tailwinds.
What sets this deal apart
Several factors distinguish the Thiess–Harmony arrangement:
• Size: At A$700 million, it ranks among the largest single mining-services alliances awarded in Australia over the past decade.
• Structure: The risk-sharing, performance-aligned model departs from the fixed-rate contracts that have historically dominated open-pit mining.
• Strategic fit: Harmony, known primarily for gold operations in South Africa and Papua New Guinea, gains an Australian copper foothold without building an in-house open-pit workforce from scratch; Thiess locks in a multi-year revenue stream aligned with the energy-transition commodity wave.
• Community focus: The alliance incorporates formal social-impact objectives—Indigenous employment, local procurement, and transparent engagement—rather than treating such measures as add-ons.
Looking ahead, the partners have not ruled out extending the alliance beyond the initial five-year term if production ramps smoothly and metals markets remain supportive. Feasibility studies are also under way to assess potential underground extensions and satellite deposits across Harmony’s 2,100-square-kilometre exploration tenure.
Analysis and implications
Strategically, the Eva Copper alliance illustrates how miners and contractors are reshaping traditional relationships to navigate an era of heightened cost volatility, resource nationalism and stakeholder scrutiny. By tying performance incentives to jointly defined targets, Harmony secures exposure to Thiess’s operational systems while retaining a direct say in daily decision-making—an arrangement that could mitigate cost overruns common in mega-projects.
For Thiess, the venture showcases the contractor’s ability to deliver integrated solutions—design, build and operate—across the mine lifecycle, an offering likely to be attractive to developers of other critical-mineral assets. The model also aligns with growing investor expectations around environmental, social and governance (ESG) transparency; shared governance structures can more readily embed decarbonisation pathways, as each party is accountable for emissions tied to its scope of work.
If successful, the Eva Copper blueprint may inform future alliances in lithium, rare-earths and nickel projects across Australia, where project owners often lack the scale or expertise to manage full-service delivery in-house. The willingness of Harmony, a foreign-headquartered miner, to entrust a flagship Australian development to a partnership arrangement signals confidence in local capability and regulatory stability.
Execution risks remain, however. Labour shortages persist in the Queensland resources corridor, and supply-chain disruptions could challenge equipment delivery schedules. Copper prices, while buoyant, are notoriously cyclical. The alliance’s success will depend on how effectively its joint governance structure can absorb those pressures and adapt work programs without eroding margins.
The A$700 million pact underscores the evolving dynamics of Australia’s mining sector, where collaboration—not just contracting—is becoming central to unlocking the next generation of critical-mineral projects.
Sources
- https://thiess.com/news/project-announcements/thiess-secures-a-700-million-alliance-agreement-with-harmony-for-eva-copper-mine-project
- https://www.australianmining.com.au/thiess-wins-700-million-eva-copper-deal-with-harmony-gold/
- https://www.felix.net/project-news/thiess-secures-work-packages-for-eva-copper-project
