Challenger Gold Maps Path to 2029 Production With $1.1B NPV Hualilán Project
Key Takeaways
- The May 2026 Pre-Feasibility Study underpins a post-tax NPV of approximately $1.1 billion at $3,500/oz gold, rising to $1.8 billion at $4,500/oz — with current gold prices sitting closer to the higher sensitivity case.
- Commercial production from the Phase 1 heap leach operation is targeted for early 2029, with construction ramp-up scheduled to begin in H2 2027.
- A 35,000-metre drilling program is currently active across four rigs, with an exploration update due Q4 2026 and updated Mineral Resource and Ore Reserve estimates expected in H2 2027.
- BBA Consultants is advancing optimisation studies that could lift heap leach gold recovery from 69.7% to 74.7% and potentially remove approximately $48 million of power line capital from upfront funding requirements.
- RIGI qualification — Argentina's large investment incentive regime offering a reduced 25% corporate tax rate and customs benefits — is being pursued, with approximately $30 million of historical investment potentially counting toward the $200 million eligibility threshold.
Challenger Gold sets its sights on commercial production by early 2029
Challenger Gold Limited (ASX: CEL) has outlined a clear development roadmap for its 100%-owned Hualilán Gold Project in San Juan, Argentina, with commercial production from the Phase 1 heap leach operation targeted for early 2029. The new leadership team has designated stand-alone gold production at Hualilán as its primary objective, building on the positive outcomes of the May 2026 Pre-Feasibility Study (PFS) and the project’s fully permitted status.
An investor webinar is scheduled for Tuesday, 15 September 2026 at 11:00am AEST, where Non-Executive Chairman Peter Marrone and Chief Operating Officer and Interim CEO Yohann Bouchard will present the update.
The Company
“Our objective is clear: to transition Hualilán from a development asset to a producing gold operation. With a fully permitted project, a robust Pre-Feasibility Study and a strengthened leadership team, we believe Hualilán has a compelling pathway to commercial production. The priorities outlined today provide a structured framework to support commercial production from the Phase 1 heap leach operation by early 2029, while preserving the significant long-term growth opportunities across the broader Hualilán district.”
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The 2026 PFS economics underpinning the roadmap
The May 2026 PFS provides the financial foundation for the entire development roadmap. Key metrics from the study include:
- 1.8 million gold equivalent ounces over a 14.25-year mine life
- Average production of 135,000 ounces gold equivalent per year after the first two years
- Pre-production capex of approximately $267 million, including contingency
- Post-tax NPV of approximately $1.1 billion and a post-tax IRR of 35% at a gold price of $3,500/oz
- Payback period of 2.25 years at $3,500/oz
- At $4,500/oz gold, post-tax NPV increases to approximately $1.8 billion and payback shortens to 1.25 years
- Staged development: Phase 1 heap leach operation first, followed by the addition of a flotation circuit approximately two years later
The sensitivity at $4,500/oz is worth noting given where gold prices have been trading. The PFS was modelled at $3,500/oz, meaning the current gold price environment could provide meaningful upside to the project’s published economics.
For investors wanting historical context on how Hualilan’s production economics have evolved, our deep-dive into Challenger Gold’s earlier toll milling economics covers the $221M EBITDA target and the strategic rationale that preceded the current heap leach PFS framework.
| Gold Price Assumption | Post-Tax NPV | Post-Tax IRR | Payback Period | Phase 1 Capex |
|---|---|---|---|---|
| $3,500/oz | ~$1.1B | 35% | 2.25 years | ~$267M |
| $4,500/oz | ~$1.8B | Not disclosed | 1.25 years | ~$267M |
Four pillars driving the path to first production
Challenger has structured its development plan around four strategic priorities, each designed to progressively de-risk the Phase 1 heap leach development.
1. Engineering and optimisation
BBA Consultants has been engaged to advance detailed engineering covering the mine, heap leach pad, process facilities, and associated site services for Phase 1. Running in parallel, BBA is conducting optimisation studies that could improve heap leach gold recovery from 69.7% to 74.7%, potentially remove approximately $48 million of power line capital from upfront funding requirements through third-party financing, and evaluate Merrill-Crowe processing as an alternative to the planned ADR circuit (offering potentially lower capital costs and greater local procurement opportunities). An NI 43-101 Technical Report is targeted for completion in Q1 2027.
2. Exploration and resource growth
A 35,000-metre drilling program is underway with four drill rigs currently in operation, focused on resource extensions, reserve conversion, and mine plan optimisation within and around the existing open pit. The program includes 5,500 metres of geotechnical and hydrogeological drilling. An exploration update is targeted for Q4 2026, with updated Mineral Resource and Ore Reserve estimates expected in H2 2027.
3. Financing and capital markets
Challenger plans to refinance its existing US$15 million convertible debenture, which matures on 14 September 2026. If the refinancing is completed, combined cash on hand and debenture proceeds are expected to fund exploration, corporate obligations, and Phase 1 activities through mid-2027, by which time a full project financing plan for Hualilán development is targeted. The company is also evaluating potential secondary listing options to broaden access to North American institutional investors.
4. Execution and early works
Earthworks are already advancing on the ground in San Juan, with construction of the mining camp, access roads, and main gate underway. As of end of June, small-scale mining activities had stockpiled 79,897 tonnes of ore at an average grade of 0.72 g/t gold for future processing. Long-lead equipment procurement is underway, with construction ramp-up targeted for H2 2027. The company is also progressing discussions regarding a potential transition to an Ore Purchase Agreement.
What is a heap leach operation, and why does it matter for Hualilán’s economics?
Heap leaching is a gold extraction method where ore is crushed, stacked on large lined pads, and irrigated with a chemical solution that dissolves and captures the gold. It requires significantly less upfront capital than a conventional milling operation because it avoids the need for complex grinding and floatation infrastructure at the outset.
For Hualilán, the Phase 1 heap leach approach is strategically attractive for two reasons. First, the permits are already in place, removing a significant timeline risk. Second, the lower capital threshold of approximately $267 million provides a more accessible funding target than a full conventional mill build would require, creating a faster path to cash flow generation.
Hualilan’s environmental approval, secured prior to the current development push, is one of the distinguishing features that separates this project from peers still navigating multi-year permitting queues across South America.
The staged approach matters here. Challenger plans to add a flotation circuit roughly two years after Phase 1 production begins, which preserves the long-term production scale of the project while reducing the funding burden at the critical early development stage. This sequencing is designed to reduce execution risk, not sacrifice long-term potential.
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Upcoming catalysts and the road to 2029
For investors tracking Challenger’s progress, the following milestones represent the key signposts between now and first production:
- Q3 2026 — Proposed refinancing of existing convertible debenture
- Q3 2026 — Submission of RIGI application
- Q4 2026 — Project development update
- Q4 2026 — Exploration update (initial results from the 35,000-metre drilling program)
- Q1 2027 — NI 43-101 Technical Report
- Q1 2027 — Results of optimisation studies
- H2 2027 — Construction ramp-up begins
- Early 2029 — Targeted commercial production from Phase 1 heap leach
RIGI, formally known as Argentina’s Régimen de Incentivo para Grandes Inversiones, is a large investment incentive regime that offers qualifying projects a reduced corporate income tax rate of 25%, accelerated depreciation, indefinite carry-forward of tax losses, and customs and VAT benefits. Eligibility requires qualifying investment exceeding $200 million, with more than 40% committed within the first two years. Challenger believes approximately $30 million of historical investment at Hualilán may count toward this threshold, with confirmation anticipated in H1 2027. RIGI qualification is not guaranteed, but if confirmed, it has the potential to meaningfully enhance project economics and improve financing attractiveness.
Execution of these catalysts, combined with the fully permitted project status and the PFS economics, positions Hualilán as one of the more advanced near-term gold development opportunities in South America. The next six months will deliver several of the most material data points, making this a closely watched timeline for investors following the ASX gold development space.
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