Resolute Mining Limited (ASX/LSE: RSG), a gold mining company focused on Africa, has revealed a major increase in the ABC Project's mineral resource located in northwest Côte d'Ivoire following over 31,000 metres of drilling. The updated Mineral Resource Estimate now totals 133 million tonnes at 0.71 grams per tonne gold, equating to 3.0 million ounces of contained gold, up from the prior 2.16 million ounce figure. The company plans to invest $15–25 million over the next 12–18 months on work programs to advance feasibility studies and mining permits, aiming to establish ABC as its fourth mine in West Africa.
Key Highlights
- Resolute Mining Limited (ASX/LSE: RSG) operates multiple mining and exploration projects across West Africa.
- The ABC Project's Mineral Resource Estimate has grown significantly to 3.0 million ounces of gold, up from 2.16 million ounces.
- More than 31,000 metres of drilling confirmed mineralisation extensions beyond previous models, with Kona South and Kona Central deposits still open along strike and at depth.
- A planned $15–25 million program includes over 80,000 metres of infill drilling, metallurgical testing, environmental and social baseline studies, and permitting, expected to finish by late 2027.
- Currently operating seven rigs onsite at ABC, with plans to increase to eleven rigs by August 2026 to accelerate exploration and development.
Resolute Mining Prioritizes ABC Project as Key Growth Asset in West Africa
Resolute Mining is advancing the ABC Project as a central component of its West African growth strategy, targeting it as the company’s fourth mine on the continent. Acquired from AngloGold Ashanti in 2025, the ABC Project significantly strengthens Resolute’s portfolio. CEO Chris Eger highlighted ABC’s potential to contribute substantially to the company’s diversified multi-asset gold platform, aligning with its broader goal to expand operational presence and production across several African jurisdictions where Resolute has established expertise and infrastructure.
The ABC Project includes four exploration permits—Faraka-Nafana, Kona, Windou, and Gbemanzo—located roughly 550 kilometres northwest of Abidjan, all fully owned by Resolute. This marks Resolute’s second mine prospect in Côte d'Ivoire, reflecting confidence in the nation’s mineral wealth and regulatory framework. Situated in an accessible West African region, the project benefits from logistical advantages for development and operations. Through advancing feasibility studies and aiming to initiate mining, Resolute is following a disciplined, risk-managed development path.
Updated Mineral Resource Estimate Reflects Success of 31,000+ Metres Drilled
The expanded Mineral Resource Estimate is a significant milestone for the ABC Project following intensive exploration since Resolute’s 2025 acquisition. The updated MRE totals 133 million tonnes at 0.71 grams per tonne gold, representing 3.0 million ounces of contained gold at a 0.3 grams per tonne cut-off within a US$3,250 per ounce gold pit shell. This is a material rise from the previous 2.16 million ounce inferred resource, underscoring the effectiveness of Resolute’s drilling program in resource expansion. The estimate covers the Kona South and Kona Central deposits, situated about 3 kilometres apart within the Kona exploration permit’s southern section.
In 2026, Resolute completed 149 drill holes: 124 reverse circulation (RC) holes totaling 23,473 metres and 25 diamond drillholes totaling 7,645 metres. This systematic drilling confirmed the continuity and grade of mineralised zones. Notable intersections include 53 metres at 0.96 grams per tonne gold from 86 metres depth and 66 metres at 1.17 grams per tonne gold from 165 metres depth. Most of the resource lies within 250 metres of surface, favoring future open-pit mining economics by reducing strip ratios.
Open Mineralisation at Kona South and Kona Central Indicates Further Expansion Potential
Investor confidence is bolstered by the fact that Kona South and Kona Central deposits remain open both along strike and at depth, suggesting substantial upside for resource growth. The drilling program targeted extensions north, south, and down dip, consistently returning economically viable intersections that demonstrate the mineralised system’s scale and continuity. Recent diamond drilling at Kona South revealed deeper mineralisation extensions, highlighting further expansion opportunities beyond the current 3.0 million ounce resource.
Geologically, Kona South’s gold is hosted mainly in north-south striking psammitic units dipping about 70 degrees west, bounded by calc-silicate hanging wall and paragneiss footwall units, with an additional mafic volcanic unit nearby. Mineralisation is structurally controlled and closely associated with arsenopyrite, occurring as disseminations and aggregates aligned with the host rock foliation. Strong silicification within mineralised zones provides visual exploration markers, supporting systematic targeting of mineralisation beyond current boundaries, especially at greater depths.
Moya Prospect Emerges as New Growth Opportunity 8 Kilometres North of Kona Central
Exploration drilling identified the Moya prospect as a new growth target within the Kona permit, located 8 kilometres north of Kona Central. This discovery expands the ABC Project’s mineralised footprint beyond the two main deposits. Early-stage drilling at Moya revealed gold mineralisation with notable intersections including 31 metres grading 0.95 grams per tonne gold from 310 metres depth and 13 metres at 2.21 grams per tonne gold from 28 metres depth. Moya’s identification adds optionality to the project’s development and could extend mine life or offer separate processing opportunities if further drilling delineates a resource suitable for future inclusion.
The Moya discovery resulted from systematic exploration alongside the broader Kona drilling programs, reflecting Resolute’s disciplined approach to fully evaluating permit prospectivity. Although still in early exploration and excluded from the current resource estimate, ongoing drilling success at Moya could enhance the project’s overall economic potential.
Intensified Drilling Program to Reach 80,000 Metres with Eleven Rigs by August 2026
Resolute is accelerating exploration and development with seven rigs currently operating at ABC and plans to increase to eleven rigs by August 2026. This supports an 80,000-metre infill drilling campaign initiated in Q2 2026, aimed at converting Inferred Mineral Resources to the higher-confidence Indicated category. The ramp-up reflects management’s strong confidence in ABC’s potential and commitment to advancing the project along a defined timeline toward feasibility and permitting.
The 12 to 18-month work program focuses on infill drilling, technical studies, environmental and social baseline assessments, metallurgical testing, and site infrastructure improvements. This comprehensive approach simultaneously addresses ore body definition, technical feasibility, regulatory compliance, and community engagement. Achieving Indicated resource status enhances confidence in geological continuity and grade, underpinning feasibility study assumptions and future mining decisions. The aggressive drilling schedule signals Resolute’s intent to transition from exploration to development within a set timeframe, subject to market and operational conditions.
$15–25 Million Work Program Targets Feasibility and Mining Applications by End of 2027
Resolute has approved a work program budgeted at $15–25 million over the next 12 to 18 months to advance ABC through feasibility studies and mining permit applications. This includes infill drilling for resource conversion, metallurgical testwork to optimize processing, environmental and social baseline studies to meet regulatory and community standards, permitting and government liaison, geotechnical investigations for engineering design, and hydrogeological studies to assess water management. This structured program reflects a disciplined, multi-faceted approach to project advancement, addressing technical, regulatory, and social factors critical to project viability.
The company aims to complete these studies and submit mining applications by the end of 2027, marking a key milestone. This timeline indicates Resolute’s plan to move ABC from resource definition to development readiness within approximately 18 months. Feasibility studies will deliver detailed engineering, economic, and operational data needed to evaluate project viability and production potential. Mining applications in Côte d'Ivoire require comprehensive environmental impact assessments, community consultation documentation, and technical plans demonstrating capability for responsible operation. ABC’s development as Resolute’s fourth West African mine and second in Côte d'Ivoire underscores its strategic importance.
Geological and Structural Insights Reinforce Resource Expansion Confidence
Drilling results and geological interpretations reveal strong structural controls on mineralisation at ABC, supporting further resource growth potential. Gold at Kona South is structurally controlled with a strong spatial link to arsenopyrite, occurring as disseminations and aggregates aligned with the psammitic host’s foliation. The open nature of mineralisation along strike and at depth indicates current resource boundaries are exploration frontiers, not limits to the mineralised system. Globally, structurally controlled, foliation-hosted gold systems often extend beyond initial drilling footprints.
Cross-sectional geology shows multiple stacked lodes at Kona South striking north-northwest and dipping steeply west, suggesting the identified mineralisation is part of a larger system. Mineralisation at 236 metres depth (e.g., hole KNRD0632 with 24 metres grading 1.54 grams per tonne gold) remains shallow enough for underground mining consideration. Strong silicification within mineralised zones provides visual exploration guides for surface and downhole targeting. These geological factors collectively affirm substantial exploration upside at ABC.
Key Drilling Results Confirm Grade and Continuity Across Deposits
Reported drill intersections demonstrate consistent gold grades and mineralisation continuity at ABC. Notable results at Kona South include 53 metres at 0.96 grams per tonne gold from 86 metres depth (hole KNRC0525), 41 metres at 1.47 grams per tonne gold from 269 metres depth (hole KNRC0553), and 66 metres at 1.09 grams per tonne gold from 176 metres depth (hole KNRC0613). At Kona Central, highlights include 9 metres grading 4.99 grams per tonne gold from 19 metres depth (hole KNRC0540) and 66 metres at 1.17 grams per tonne gold from 165 metres depth (hole KNRC0554). These results align with typical West African orogenic gold mineralisation styles.
Diamond drilling confirmed mineralisation continuity at depth, with intersections such as 30 metres at 1.58 grams per tonne gold from 231 metres depth (hole KNRD0506), 33 metres at 1.41 grams per tonne gold from 120 metres depth (hole KNRD0551), and 24 metres at 1.54 grams per tonne gold from 236 metres depth (hole KNRD0632). Intersection widths ranging from several metres to over 60 metres indicate mineralisation suitable for open-pit mining. Consistent grades across deposits and depths reflect a widespread mineralising process within the Kona permit. Achieving these results shortly after the 2025 acquisition highlights the effectiveness of Resolute’s exploration approach and mineralisation quality.
Project Development Strategy Integrates Technical, Regulatory, and Community Considerations
The approved ABC work program demonstrates Resolute’s comprehensive approach to project development in the African context. Beyond drilling and feasibility studies, it includes environmental and social baseline studies, permitting, geotechnical, and hydrogeological investigations. These components meet Côte d'Ivoire’s regulatory requirements and international standards for responsible mining. Environmental baselines establish pre-mining conditions for impact assessments, while social baselines document community characteristics and consultations essential for project acceptance and stability.
Metallurgical testing is critical for defining processing routes, recovery rates, and cost estimates. Geotechnical studies inform pit design and slope stability, while hydrogeological work assesses water availability and management. Integrating these workstreams into a coordinated 12–18 month program enables parallel advancement of technical, regulatory, and social factors, accelerating development and reducing late-stage risks. The goal of submitting mining applications by end-2027 depends on timely completion of all these efforts.