Orosur Mining
Orosur Mining is a pre-revenue South American minerals exploration company advancing gold projects in Colombia's Mid-Cauca Belt (Anzá, 100%-owned, 219K oz maiden resource) and Argentina (El Pantano, JV earn-in), dual-listed on TSX.V and AIM under ticker OMI.
- Company typePublic
- Founded1996
- HeadquartersToronto, Canada
- Headcount51–100
- GTM typeB2B
- OfferingServices
What Orosur Mining does
Orosur Mining Inc is a South American-focused minerals exploration and development company that explores for gold and silver deposits in two proven mining jurisdictions: the Anzá Project in Colombia's Mid-Cauca Belt and the El Pantano Project in Argentina's Deseado Massif. The company is dual-listed on the TSX Venture Exchange and London's AIM market under the ticker OMI. Following the November 2024 acquisition of Minera Monte Aguila — formerly the 50/50 Newmont/Agnico Eagle joint venture vehicle — Orosur holds 100% of Anzá with approximately 330km² of licences and applications. El Pantano (~550km²) is held under a JV earn-in that took Orosur to 51% ownership in February 2025, with a path to 100% via a further US$2M investment.
The company's exploration methodology integrates geological mapping, geochemical sampling, ground magnetic surveys, induced polarisation surveys, and diamond drilling. Over 50,000 metres of drilling have been completed at Anzá, supporting the APTA and Pepas prospects. In February 2026 Orosur published a maiden Mineral Resource Estimate for Pepas of 201,000 oz Au Indicated (1.14 Mt at 5.46 g/t) and 18,000 oz Inferred (0.19 Mt at 2.99 g/t), and filed a NI 43-101 technical report in March 2026. El Pantano commenced its first 3,000-metre diamond drill program in November 2025.
Orosur is pre-revenue with no producing assets. Capital is raised through periodic share placements, warrant exercises and RSU exercises — recent tranches include a February 2024 £500,000 placement, an October 2024 US$1.48M share/warrant issuance, an August 2025 US$174,711 warrant exercise, a February 2026 US$110,703 warrant exercise, and a May 2026 CAD 551,500 RSU/warrant exercise, with a larger raise referenced in mid-2025. The board and management operate remotely, the registered office is in Toronto with no physical head office, and the shareholder base is dominated by UK institutional investors including abrdn plc (12.1%), 1832 Asset Management (12.1%) and Hargreaves Lansdown (11.9%) as of November 2025.
Orosur Mining firmographics
Firmographics- Name
- Orosur Mining
- Legal name
- Orosur Mining Inc
- Website
- http://www.orosur.ca/
- Company type
- Public
- Founded year
- 1996
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Orosur Mining is a pre-revenue South American minerals exploration company advancing gold projects in Colombia's Mid-Cauca Belt (Anzá, 100%-owned, 219K oz maiden resource) and Argentina (El Pantano, JV earn-in), dual-listed on TSX.V and AIM under ticker OMI.
- Ownership category
- akta.pro rank
Orosur Mining industry classification
Industry- Product category
- Mineral Exploration
- NAICS
- Gold Ore and Silver Ore Mining (212220)
- SIC
- Gold And Silver Ores (1040)
- akta.pro primary industry
- Gold Mining (IMAKAEAA)
- akta.pro secondary industry
- Mineral Exploration & Geoscience Services (Geology, Geophysics, Geochemistry, Resource Modeling) (IMAKAKAA)
Keywords
Where Orosur Mining is headquartered
LocationHeadquarters
- HQ city
- Toronto
- HQ country
- Canada
- HQ region
- North America
Offices2 records
Markets served
Orosur Mining business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Operations, Personnel, Technology or R&D, Others
Revenue model
- Mineral Exploration and Development: Pre-revenue exploration stage company focused on discovering and developing economic mineral deposits. Currently has no producing assets; the company is exploring gold projects in Colombia (Anzá) and Argentina (El Pantano) with the goal of advancing to resource definition and eventual production.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels5 records
Orosur Mining product offering
Product offeringCore offering
Orosur Mining is a pre-revenue minerals exploration and development company focused on discovering and developing economic gold and precious metals deposits in South America. The company actively explores the Anzá gold project in Colombia's Mid-Cauca Belt and the El Pantano gold-silver project in Argentina's Deseado Massif, conducting geological surveys, geochemical sampling, induced polarisation surveys, and diamond drilling programs to advance prospects toward resource definition and eventual production.
Product overview
Orosur Mining is a South American minerals exploration and development company with two primary precious metals exploration projects. The flagship Anzá Project is an advanced gold project in Colombia's Mid-Cauca Belt (100% owned), featuring the Pepas deposit with a maiden resource of 219,000 oz Au and the APTA prospect. The El Pantano Project is an early-stage gold/silver exploration project in Argentina's Deseado Massif, where the company is earning towards 100% ownership through a two-phase US$3m investment. Both projects target epithermal and porphyry gold deposits in proven mineral belts.
Differentiator
Problem solved
Functional benefit
Products and services
- Anzá Project Flagship advanced gold exploration project located in the Mid-Cauca Belt of Colombia, approximately 50km west of Medellin, covering approximately 330km² of granted exploration licences and applications. Contains the Pepas deposit with a maiden Indicated and Inferred resource of approximately 219,000 oz gold and the APTA prospect, with over 50,000m of drilling completed. Targeted at investors seeking exposure to South American precious metals exploration.
- El Pantano Project Early-stage gold and silver exploration project in the Deseado Massif region of Santa Cruz state in southern Argentina, comprising approximately 550km² of exploration licences. Operates under a joint venture structure where Orosur can earn 100% equity by investing US$3m over five years in two phases. Targeted at investors seeking exposure to early-stage precious metals exploration in a proven mineral province.
Quantifiable outcome
- 219,000 oz gold maiden resource established at Pepas deposit
- +2 more outcomes
Companies that use Orosur Mining
Customer profileSegments2 records
Ideal customer profiles1 record
Orosur Mining technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Orosur Mining partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- Baker Tilly WM LLPcoreAuditors for the company. Located at 900-400 Burrard Street, Vancouver, BC, Canada V6C 3B7.
- FaskencoreCompany Solicitors (Canada). Located at Bay Adelaide Centre, 333 Bay Street, Suite 2400, Toronto, ON, M5H 2T6.
- Minera Monte Aguila (MMA)coreJoint venture company previously owned 50/50 by Newmont Corporation and Agnico Eagle Mines. Orosur acquired 100% of MMA shares in November 2024, returning to 100% ownership of Anzá Project. Acquisition terms include 1.5% NSR on future production plus US$75/oz fixed royalty for first 200,000 gold equivalent ounces.
- DeseadocoreJoint venture partner for El Pantano Project in Argentina. Orosur can earn 100% equity by investing US$3m over five years in two phases: Phase 1 (earn 51% by investing US$1m over 3 years), Phase 2 (move to 100% by investing additional US$2m over 2 years and granting a 2% NSR royalty). Orosur reached 51% ownership in February 2025.
Scale indicators8 records
Recent moves7 records
Expansion highlights6 records
Orosur Mining competitors and assessment
Company assessmentDirect peers
- Collective Mining: AIM and TSX-listed junior explorer focused on gold and copper-gold projects in Colombia's Mid-Cauca Belt — the same belt as Orosur's flagship Anzá Project. Closest structural comparable in terms of jurisdiction, asset stage, and dual listing strategy.
- Cordoba Minerals: TSX-listed junior explorer with gold-copper projects in Colombia (and previously the San Matias project). Comparable Colombian footprint and pre-development stage make it a relevant peer despite focus on copper-gold rather than pure gold.
- Mako Mining: Dual-listed (TSX.V and QSE) junior gold producer and explorer with operations across the Americas. Comparable in scale, dual-listing structure, and focus on advancing gold assets from exploration toward production.
- Condor Gold: AIM-listed junior gold developer focused on Nicaragua's La India project. Closely comparable in size, AIM-listing, single-asset profile, and pre-construction stage — though operating in Central America rather than South America.
- Cabral Gold: TSX.V-listed junior gold explorer advancing the Cuiú Cuiú project in Brazil. Comparable in market cap, exploration-stage profile, and focus on South American gold assets with maiden resource and drilling programs underway.
- GoldMining Inc: TSX-listed Americas-focused gold exploration company with a portfolio of gold and copper-gold projects across Brazil, Colombia, Guyana, and other jurisdictions. Comparable as a multi-asset South American gold explorer with no producing mines.
Broad incumbents
- Aris Mining: TSX-listed mid-tier gold producer operating the Segovia and Marmato mines in Colombia. Highly relevant as a Colombian gold operator but significantly larger and producing — represents the natural evolution target for Orosur if Anzá advances.
- IAMGOLD Corporation: TSX and NYSE-listed mid-tier gold producer with a meaningful Colombian footprint (including previous exposure to the Anzá belt via JV structures). A logical potential acquirer of advanced-stage Anzá assets.
- Galiano Gold: TSX and NYSE-listed gold producer operating the Asanko mine in Ghana. Comparable as a small-mid cap gold company, though at a more advanced producing stage than Orosur.
Emerging players
- Newcore Gold: TSX.V-listed junior gold explorer advancing the Enchi project in Ghana. Comparable in size and pre-development stage, though operating in West Africa rather than South America.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Orosur Mining social profiles
Digital presenceOrosur Mining financial estimates
Financial estimateRevenue estimate
Valuation estimate
Orosur Mining leadership team
Management profileNumber of profiles
Profiles9 records
Orosur Mining subsidiaries and ownership
Company hierarchySubsidiaries1 record
Orosur Mining funding detail
Funding detailFunding overview
Funding rounds8 records
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Orosur Mining M&A and investment
M&A and investmentM&A3 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Orosur Mining
What does Orosur Mining do?
Orosur Mining is a pre-revenue minerals exploration and development company focused on discovering and developing economic gold and precious metals deposits in South America. The company actively explores the Anzá gold project in Colombia's Mid-Cauca Belt and the El Pantano gold-silver project in Argentina's Deseado Massif, conducting geological surveys, geochemical sampling, induced polarisation surveys, and diamond drilling programs to advance prospects toward resource definition and eventual production.
Is Orosur Mining a public or private company?
Orosur Mining is a public company. It is classified as public and is currently operating.
When was Orosur Mining founded?
Orosur Mining was founded in 1996. It employs 51 to 100 people.
Where is Orosur Mining based?
Orosur Mining is headquartered in Toronto, Canada, in the North America region.
How does Orosur Mining make money?
One revenue line is on record: mineral Exploration and Development.
Who are Orosur Mining's main competitors?
Direct peers on record are Collective Mining, Cordoba Minerals, Mako Mining, Condor Gold, Cabral Gold and GoldMining Inc. Broad incumbents are Aris Mining, IAMGOLD Corporation and Galiano Gold. Newcore Gold is listed as an emerging player.
Does Orosur Mining have an API?
No public API is recorded for Orosur Mining.
What industry is Orosur Mining in?
Orosur Mining's product category is Mineral Exploration. Its primary akta.pro industry code is IMAKAEAA, Gold Mining, with a secondary code of IMAKAKAA, Mineral Exploration & Geoscience Services (Geology, Geophysics, Geochemistry, Resource Modeling). Its NAICS code is 212220 and its SIC code is 1040.