Guinea Gold Mines: List of Mining Companies and Output

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Introduction: Gold Mining in Guinea’s West African Belt

Guinea, a key location within the broader West African mineral belt, has substantial gold mining potential. As the sector evolves, Guinea’s gold mines increasingly attract local and international mining companies intent on tapping into the country’s considerable mineral wealth. Yet, what sets this region apart from many other gold-rich nations is the unique and dynamic integration of mining with agricultural development—a combination that can support sustainable rural growth, land stewardship, and community resilience.

Quick answer. The main industrial gold operations in Guinea are Siguiri (AngloGold Ashanti), Lefa (Nordgold), Kiniero (Predictive Discovery, which merged with Robex Resources in April 2026), Kouroussa (Hummingbird Resources, owned by Nioko Resources since 2025) and Tri-K (Managem). Artisanal miners supplied 1.59 million of the 2.33 million ounces Guinea exported in 2025 (Ecofin Agency, 2026). Bankan, near Kouroussa, is the next large project. Since July 2026 only gold refined in Guinea may leave the country.

The coexistence of mining operations and extensive agrarian economies means that land, water, and rural livelihoods are inextricably linked, intertwining the fortunes of mining companies, local farmers, and communities adjacent to extraction zones. This blog examines the list of gold mining companies in Guinea, dives into how sustainable mining practices can amplify rural and agricultural development, and highlights innovative approaches—including Farmonaut’s satellite-based mineral detection—for a truly integrated and responsible mining era.

How Big Is Guinea’s Gold Sector?

• Gold Districts: Guinea’s industrial mines and projects sit mainly in the north-east of the country, including the Siguiri Basin.
• Strategic West African Location: Situated within the renowned West African gold belt, a globally significant mineral corridor.
• Changing Policy: Since July 2026 only gold refined in Guinea may be exported, so producers now sell through local refineries.
• Agricultural Synergy: Vast arable land and fertile river basins facilitate complementary farming activities adjacent to mining zones.

The relationship between mining and agriculture, and their shared influence on land, water, environmental, and social frameworks, lies at the heart of the country’s new development paradigm.

Guinea Gold Mines: An Overview

Mining in Guinea is characterized by a mix of large-scale industrial operations (run by multinational companies) and artisanal mining (by local or smallholder miners). Gold stands out as one of Guinea’s key mineral exports, driving both export earnings and local economic activity. The sector often sits alongside agrarian economies where smallholder farmers cultivate crops for local consumption and market sale.

Chart

Guinea gold exports in 2025

Million troy ounces; official export figures

• Guinea exported 2.33 million ounces of gold in 2025, of which 1.59 million ounces came from artisanal mining.
• The country hosts a spectrum of project scales—from grassroots exploration to mature productive mines.
• The sector includes camp-based operations, processing plants and supply chains.

Note: Gold mining doesn’t exist in isolation—it depends on, and directly shapes, the surrounding land use, labor markets, and the vital water sources that sustain both agricultural communities and mineral processing facilities.

Guinea gold mining in numbers

Official export figures put 2025 gold exports at 2.33 million ounces, with artisanal miners accounting for 1.59 million ounces, more than the industrial and semi-industrial mines combined (Ecofin Agency, 6 July 2026). Only industrial and semi-industrial output is tracked in detail in the Mining Statistics Bulletin, so the artisanal share is a rough measure (Ecofin Agency, 30 June 2026). Ecofin put the industrial sector’s 2025 output at 18.29 tonnes (Ecofin Agency, 25 June 2026). Gold is part of a wider extractive sector that supplied over 17% of government revenue, 92% of exports and 20% of GDP in 2022 (EITI).

Where the gold mines are

Most of the industrial gold sits in the north-east. Kouroussa is in the Siguiri Basin (Mining.com), as is the Siguiri mine itself; Kiniero is in the Kankan region, Bankan lies near Kouroussa (Ecofin Agency) and Tri-K is in the Mandiana area (Managem). Lefa lies about 700 km north-east of the capital, Conakry (Mining.com). Artisanal workings follow the rivers and creek lines of the same belt.

Raw gold export ban and the Nimba Gold Refinery

President Mamadi Doumbouya announced on 19 June 2026 that raw gold exports would end. A decree read on 3 July gave operators 90 days to adjust; after that, only refined bars certified by an approved refinery and carrying a certificate of origin may leave the country (Rio Times, October 2026). During the transition, exporters had to file enhanced reports and compliance plans (Ecofin Agency, 6 July 2026). The Nimba Gold Refinery in Conakry is a US$30 million project with an initial capacity of 530 tonnes a year, rising to 733 tonnes (Ecofin Agency, 30 June 2026). Its first refined bars were exported on 9 October 2026; officials did not publish the weight, value or buyer (Rio Times). Guinea also plans a national traceability registry covering production, transport, refining and export (Ecofin Agency).

List of Gold Mining Companies in Guinea: Local and International Players

The list of gold mining companies in Guinea encompasses both established global firms and emerging local operators. This diversified ecosystem is vital for employment generation, regional development, and value chain enhancement.

Chart

Reported or planned annual output at Guinea gold mines

Thousand troy ounces a year; each bar has a different basis

Major Guinea Gold Mines & Companies:

• Société Aurifère de Guinée (SAG – Siguiri Gold Mine): Owned 85% by AngloGold Ashanti and 15% by the Guinean government; 289,000 oz in 2025.
• Nordgold Limited (Lefa Gold Mine): Bought the Lefa mine in 2010; a 15-year permit, granted in 2019, runs to 2034.
• Managem (Tri-K Gold Project, Mandiana): The Moroccan group took control of Tri-K in 2019 and poured the first gold bar in 2021.
• Kouroussa mine (Hummingbird Resources, now owned by Nioko Resources): Commercial production was declared in November 2024 under Hummingbird Resources; Nioko Resources, its largest shareholder, took over Hummingbird in early 2025.
• Robex Resources (Kiniero mine): Kiniero poured first gold in December 2025; Robex merged into Predictive Discovery in April 2026.
• Predictive Discovery (Bankan gold project, near Kouroussa; development stage)
• Other Emerging/Junior Operators and Local Artisanal Collectives

Spectrum of Mining Project Scales

Mining in Guinea is not monolithic; it ranges from mega-scale gold mining complexes and medium-sized placer operations to artisanal pits dotted along rivers and creek lines. Each type influences land use, water sourcing, and the socioeconomic fabric of adjacent rural communities.

Guinea gold mines compared

Siguiri: the largest industrial gold mine

Siguiri is run by Société Aurifère de Guinée, which AngloGold Ashanti owns 85% and the Guinean government 15%. It produced 289,000 ounces in 2025. A government statement of 13 October 2026 repeated a target of 400,000 ounces a year by 2030, tied to a new mining area called Block 3 and a plant upgrade, with about US$500 million of expansion spending cited (Ecofin Agency, 14 October 2026).

Nordgold in Guinea: the Lefa mine

Nordgold bought Lefa in 2010 as part of its Crew Gold takeover and received a fresh 15-year mining permit, valid to 2034, with plans to invest more than US$360 million (Mining.com). It later began mining the Diguili deposit, about 35 km from the Lefa plant, to add feed (Mining.com).

Kouroussa gold mine: owner, output and status

Kouroussa lies in the Siguiri Basin. Hummingbird Resources declared commercial production on 25 November 2024, several months behind schedule; the plant was designed for 100,000 ounces a year over six years, and 2024 output was guided at 45,000 to 50,000 ounces (Ecofin Agency). In December 2024, Nioko Resources, which held about 42% of Hummingbird, offered about £13.8 million for the shares it did not own (Mining.com). The offer was declared unconditional in January 2025, and Nioko took over Hummingbird in 2025, which became a private company (Mining.com, 3 January 2025). The latest output guidance on record is 45,000 to 50,000 ounces for 2024.

Kiniero and Bankan: Predictive Discovery

Robex Resources built Kiniero for about US$243 million, poured first gold in late December 2025 and began commercial production in February 2026; Guinea holds 15% and receives a 5.5% royalty (Ecofin Agency). Predictive Discovery and Robex announced a merger of equals in October 2025, with combined output expected to pass 400,000 ounces a year by 2029 (ASX announcement), and Ecofin reports the merger completed in April 2026. Bankan holds roughly 170 tonnes of gold; Predictive applied for a mining permit in January 2025 and must still raise about US$463 million for construction (Ecofin Agency).

Tri-K: Managem

Managem raised its stake in Tri-K to 70% after the 2018 feasibility study and bought out its partner Avocet’s remaining 30% in 2019 for US$21 million (Managem). The first gold bar was poured in 2021. Managem holds 85% of Société des Mines de Mandiana, which owns the licences, and the state-linked SOGUIPAMI holds 15% (Mining Technology).

Beyond gold: other mining companies in Guinea

Searches for mining companies in Guinea often mean bauxite and iron ore. Guinea mined an estimated 150 million tonnes of bauxite in 2025, the most of any country in the USGS table (USGS, 2026). The Simandou iron ore project, run by Winning Consortium Simandou and SimFer, started operations in November 2025 (SteelOrbis), and in 2025 the government revoked the bauxite concession of Emirates Global Aluminium and moved its assets to a state-backed company, Nimba Mining (Mining Technology). For a wider ranking see our guide to the world’s 20 largest gold miners and the page on gold-producing countries ranked by output.

▶ Farmonaut explainer: whether a foreigner can hold a small-scale mining licence in Africa, and the routes that stay open. · 5:16

Responsible Land and Water Management in Mining

At the heart of sustainable gold mining in Guinea lies the principle of responsible land and water management, ensuring that mining projects do not compromise the integrity of farming plots, watersheds, or community health.

Best Practices for Sustainable Land Use & Water Stewardship

1. Establishing Buffer Zones: Creation of vegetative or protected strips along creek lines and riverbanks to minimize runoff or contamination.
2. Soil Restoration Programs: Programmatic efforts to replenish and remediate degraded farmlands/mine tailings using organic amendments.
3. Progressive Reclamation: Staged restoration of mined areas concurrent with ongoing operations.
4. Tailings Management: Use of modern containment and water recycling technology, reducing downstream soil fertility loss and water contamination.
5. Watershed Investments: Partnered water-sharing agreements and irrigation systems for farmers, especially in dry seasons.

Access to reliable water sources for irrigation remains a critical factor for rural farmers. When mining operations invest in watershed protection and agreements that preserve flows, agricultural yields and community trust improve.

• 🌱 Revegetation & Plot Rehabilitation
• 🚰 Shared Watershed Projects
• 🌾 Agroforestry Buffer Belts
• 🧑‍🌾 Farmer Training in Sustainability
• 🔬 Soil and Water Quality Monitoring

All these best practices are designed to safeguard resilience and improve the region’s long-term agricultural potential.

▶ Farmonaut explainer in clay: the seven environmental impacts of mining. · 2:31

Innovation Spotlight: Farmonaut’s Satellite-Based Mineral Detection

In the modern era, mineral exploration and advanced land-use planning require efficient, sustainable, and environmentally responsible intelligence. At Farmonaut, we use Earth observation satellites and artificial intelligence to transform how gold targets are discovered globally, including in Guinea.

How Farmonaut Supports Sustainable Mining in Guinea

• 📊 Reduces Exploration Time: Satellite data shortens exploration timelines from months to days, accelerating discovery in the Guinea gold belt.
• 🌐 Minimizes Environmental Footprint: Zero ground disturbance during early exploration means soil, land, and rural water resources remain unharmed.
• 🔍 Supports Data-Driven Planning: Enables companies to plan field operations only in high-potential gold zones, optimizing resource allocation.
• 💡 Enhances Sustainable Land Use: Allows proactive land stewardship by mapping sensitive ecological or agricultural areas up front.
• 📉 Lowers Exploration Costs: Satellite-driven mineral detection solutions cut costs by up to 80–85% for companies.

Our mission: To ensure the first step in every new mining project is informed, non-invasive, and community-conscious. If you are mapping a mining site in Guinea, Map Your Mining Site Here.

Interested in detailed, actionable mining intelligence? Our satellite driven 3D mineral prospectivity mapping supports everything from prospect identification to optimal drilling guidance.

• 🛰 Space-based prospect detection—no local disruption
• 📈 Optimized investment decisions for mining companies & investors
• 🌱 Supports integrated land and water management
• 🗺 Rapid, accurate geological mapping for gold and other minerals
• 🤝 Helps companies document the ground before field work

Ready to get started? Get a mining quote or contact us for more information.

For an owner of a permit in the Siguiri Basin or elsewhere in north-east Guinea, a satellite screen can rank the ground by iron-oxide and clay alteration before any drill programme, so field work goes to the best targets first. The result is an exploration target that sits ahead of a resource estimate; it does not replace sampling.

▶ Farmonaut explainer: what Mining Pro turns a licence boundary into. · 4:56

Best Practices for Sustainable Mining Around Agricultural Communities

For gold mining companies in Guinea, embracing sustainability is not just about compliance—it’s a pathway to creating enduring value for local communities and farmer households. Here’s how:

Best Practices Checklist

• ✔ Community Development Agreements: Formal arrangements outlining shared benefits, transparent processes, and community input into land and water management.
• ✔ Environmental Impact Assessments (EIA): Conduct rigorous baseline assessments before new projects and regular monitoring during operations.
• ✔ Farmer Capacity Building: Support agricultural training projects (post-harvest handling, storage, value-added processing).
• ✔ Integrated Value Chains: Align agricultural production calendars and supply with mine camp needs, reducing food imports.
• ✔ Reclamation Funds: Set aside resources for future soil restoration and land repurposing.

• 🏞 Designated conservation and buffer areas
• 🌉 Joint community-mining water boards
• 💧 Continuous water quality checks
• 🌾 Agro-processing training centers
• 👷 Preferential local employment & procurement

Maximizing Local & Rural Community Benefits

An integrated approach ensures that the adjacent local communities benefit directly and sustainably from Guinea’s gold mines, fostering broad-based regional development.

Chart

Average gold price, 2021 to 2025

US$ per troy ounce; 2025 estimated from January to November

Key Measures for Rural Development

• ✔ Local Hiring Quotas: Mining companies set targets for local employment across all project scales.
• ✔ Community Procurement: Sourcing food supplies and services from village-based cooperatives.
• ✔ Investment in Rural Infrastructure: Upgrading roads, water systems, storage, and electricity—improving farm-to-market access.
• ✔ Social Impact Monitoring: Ongoing audits to ensure that the beneficiaries include women, youth, and marginalized groups.
• ✔ Capacity Building for Ancillary Activities: Encourage local entrepreneurship in logistics, agro-processing, and crafts.

These measures not only bring stability and higher living standards to rural Guinea but also help mining companies secure long-term social license and positive reputation in global mineral markets.

Licences, the state stake and who can mine

On the projects above the Guinean state holds a 15% interest: in Siguiri, Kiniero and, through SOGUIPAMI, Tri-K. Before buying into any permit, check the title, its expiry and any overlapping artisanal ground; our guide to mining cadastre portals by country shows how to search registers. EITI’s 2022 report noted that the export tax on artisanal gold had been suspended since July 2016 (EITI), but export routes changed with the 2026 refining rule.

Gold prices lift royalties and state-share revenue. USGS reports an average price of US$3,300 per troy ounce for 2025, against US$1,801 in 2021 (USGS, 2026). Spot gold was US$4,046.81 per troy ounce at 7:16 am ET on 28 October 2026 (GoldPrice.com); a spot price moves daily, so enter your own below.

Mining & Satellite Technology: Youtube Resource Hub

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Frequently Asked Questions (FAQ): Gold Mining and Sustainable Development in Guinea

Which gold mines operate in Guinea?

The main industrial operations are Siguiri, Lefa, Kiniero, Kouroussa and Tri-K, mostly in the north-east of the country. Bankan is a development project (Ecofin Agency, June 2026).

Who owns the Kouroussa gold mine?

Hummingbird Resources ran it when commercial production started in November 2024. Nioko Resources, its largest shareholder, then took over Hummingbird in early 2025, so Nioko is now the parent company (Mining.com). Confirm the current owner in company filings.

What is Nordgold’s role in Guinea?

Nordgold bought the Lefa mine in 2010 and was operating it in 2021, when it began mining the Diguili satellite deposit; its 15-year permit, granted in 2019, runs to 2034 (Mining.com).

How much gold does Guinea produce?

Guinea exported 2.33 million ounces in 2025, including 1.59 million ounces from artisanal mining (Ecofin Agency); a Ministry of Mines text puts 2025 output at about 68 tonnes, or 2.2 million ounces (Rio Times). Figures differ because artisanal output is poorly measured.

Can I buy or export gold from Guinea?

Raw gold exports ended after the 90-day transition that followed the 3 July 2026 decree; only refined bars certified in Guinea with a certificate of origin may be exported (Rio Times). Do your own due diligence on the refiner and origin; this page is not trade advice.

Is Bankan in production?

No. As of Ecofin’s 25 June 2026 report, Predictive Discovery still needed a mining permit, financing and a final investment decision, with production planned for 2028 (Ecofin Agency).

Conclusion: Charting a Path to Sustainable Gold Mining in Guinea

Guinea gold mines are not merely engines of mineral wealth; they supply export earnings and jobs and shape local land and water use in the broader West African belt. As the list of gold mining companies in Guinea grows, so too does the need for integrated land, water, and farming strategies—pivoting away from extractive enclave economies toward inclusive, sustainable futures.

• ✔ Sustainable mining in Guinea means planning with community voices at the table.
• ✔ Satellite intelligence—like what we provide at Farmonaut—gives rapid, non-invasive mineral detection supporting smarter, greener mining projects.
• ✔ Guinea now requires gold to be refined at home before export, which changes how producers sell their output.
• ✔ Responsible stewardship of land, water, and soil ensures the ecosystem endures for generations of Guineans to come.

As the country moves forward, the focus must remain on land, water and community safeguards, and on showing publicly how mine revenue reaches local people.