Gold South America Mid Producer
New York Stock Exchange (NYSE): MUX Toronto Stock Exchange (TSX): MUX

McEwen Mining Inc.

$550.8M
Last updated: 08/17/2025

Overview

McEwen Mining Inc. is a mid-tier gold producer headquartered in Toronto, Canada, operating primarily in South America. The company's portfolio consists of 5 projects, comprising 3 operating mines and 2 development projects. Key assets include Fox Complex and Los Azules. The business model centers on the production and exploration of minerals, with a dual operational approach that includes acting as a sole operator on certain properties and engaging in strategic joint ventures on others. Processing capabilities are diverse, utilizing either milling or heap leaching methods determined by the specific characteristics of the mineralized material, such as grade, oxidation state, and amenability to treatment. The milling process involves conventional crushing, grinding, and flotation, with a portion of the concentrate undergoing cyanide leaching and electrowinning. Heap leaching operations consist of stacking crushed material on impermeable pads, applying a cyanide solution, and recovering metals through adsorption, desorption, and smelting. The final products are either doré bars, which are sent to third-party refiners, or ore concentrate, which is processed at third-party smelters. The enterprise does not hedge its sales, thereby maintaining full exposure to commodity price fluctuations. This strategy is a core component of its risk management and financial approach, directly linking profitability to prevailing market prices.

Strategy

Strategic focus is on increasing shareholder value through the economic extraction of minerals from a portfolio of production, advanced-stage, and exploration-stage properties. Growth is pursued via a combination of organic development and strategic acquisitions, such as the 2024 acquisition of Timberline Resources Corporation to expand the exploration portfolio. A key operational priority involves advancing development projects, including bringing a new underground mine into production by early 2026 and evaluating the reprocessing of heap leach material at another site. The organization's capital strategy relies on securing substantial external investment, primarily through equity funding, to finance development and exploration expenditures. Management continually evaluates capital requirements and explores options to monetize assets to fund these initiatives. The competitive strategy acknowledges a challenging landscape dominated by larger, better-resourced companies, focusing on acquiring and advancing properties that align with its operational expertise, while navigating the scarcity of desirable mineral lands and competition for technical talent and capital.

Management

Executive leadership is significantly influenced by the Chairman and Chief Executive Officer, Robert R. McEwen, who as of March 14, 2025, beneficially owned approximately 16% of the company's outstanding common stock. This substantial ownership aligns leadership interests with those of shareholders. An affiliate of the Chairman also serves as a lender to the company under a senior secured credit facility. The corporate governance framework includes an Insider Trading and Disclosure Policy with pre-clearance requirements and blackout periods for affiliates, and a clawback policy for recouping certain executive compensation in the event of a material accounting restatement. The Board of Directors, through its Audit Committee, provides oversight for risk management, including cybersecurity. As of December 31, 2024, management identified a material weakness in internal control over financial reporting, citing an insufficient complement of human resources, which led to deficiencies in the design and operation of controls over income taxes. Remediation efforts are underway to address this issue in fiscal 2025.

Sustainability

The organization's sustainability initiatives are demonstrated through specific performance metrics and community agreements. In 2024, the company reported zero significant environmental incidents and zero reportable spills at its wholly-owned operations, a record maintained since 2022. Water management practices have shown significant improvement, with water recycling rates increasing from 24% in 2021 to over 90% in 2023 and 2024, alongside a notable decrease in water consumption. An annual dam safety inspection was completed in late 2024 with no significant findings noted. Workplace safety is a core value, reflected in a total recordable injury frequency rate of 1.30 and 1.08 at its 2 main operations and a lost-time injury frequency rate of 0 in 2024. Community engagement includes an Impact Benefit Agreement with the Apitipi Anicinapek Nation and ongoing consultation with the Métis Nation of Ontario. The company also provides comprehensive benefits to its employees, with over 96% of its US employees enrolled in its medical plan and high participation rates in retirement savings plans.

Structure

The company's current structure was formed through a series of strategic transactions, beginning with its renaming from US Gold Corp. after the acquisition of Minera Andes Inc. in September 2011. Subsequent acquisitions to expand its operational base include the purchase of Lexam VG Gold Inc. in April 2017 and the Black Fox and Stock Properties from Primero Mining Corp. in October 2017. In August 2024, the entity further expanded its exploration portfolio through the acquisition of Timberline Resources Corporation. The corporate structure includes a 49% interest in Minera Santa Cruz S.A., which is operated by its majority partner, a subsidiary of Hochschild Mining plc. The organization also holds a 46.4% interest in McEwen Copper Inc., an entity that was deconsolidated in October 2023 after its ownership fell below a controlling threshold following private placements to third parties, including a venture of Rio Tinto. A significant individual shareholder, Robert R. McEwen, beneficially owned approximately 16% of the company's common stock as of March 14, 2025.

Source

Mcewen Mining Inc. - Form 10-k - 2024

Fox Complex
100.00%
🇨🇦 Ontario, Canada
operating, underground
Annual production: < 50 koz au (very low)
Resource base: 2.5 - 5 moz au (medium)
Average Grade 2 - 5 g/t (medium)
Los Azules
46.40%
🇦🇷 San Juan, Argentina
development, open pit
Annual production: N/A
Resource base: > 20000 Mlb Cu (very high)
Average Grade 0.5 - 1 % (low)
Annual production: N/A
Resource base: 2.5 - 5 moz au (medium)
Average Grade < 1 g/t (very low)
Gold Bar
100.00%
🇺🇸 Nevada, USA
operating, open pit
Annual production: < 50 koz au (very low)
Resource base: < 1 moz au (very low)
Average Grade < 1 g/t (very low)
San José
49.00%
🇦🇷 Santa Cruz, Argentina
operating, underground
Annual production: 1 - 3 moz ag (low)
Resource base: < 25 moz ag (very low)
Average Grade 200 - 300 g/t ag (high)
Annual production: < 50 koz au (very low)
Resource base: < 1 moz au (very low)
Average Grade 5 - 8 g/t (high)
Fenix
100.00%
🇲🇽 Sinaloa, Mexico
development, open pit
Annual production: N/A
Resource base: < 1 moz au (very low)
Average Grade < 1 g/t (very low)
Annual production: N/A
Resource base: 25 - 75 moz ag (low)
Average Grade < 50 g/t ag (very low)
Last update: 07/04/2025
  1. Project should be interpreted as a single, group or complex of mines, deposits or other mineral assets. Name of the project should be identical to the official company naming convention.
  2. The ranges of values provided are indicative and should not be regarded as exact figures.
  3. Figures for exploration and development projects are based on available data and are indicative only; actual values may vary substantially.
  4. Royalties frequently apply to specific mineralized areas that may not coincide exactly with the boundaries of the overall project. As a result, even if a mine is currently in operation, the portion subject to the royalty may not be included in extraction activities until future years.
  5. Commodities are listed from most dominant to least dominant. Only selected commodities are shown.
  6. Table might not include all projects that are currently owned by the company. Displayed data are snapshots of the company's projects in time and might not be up to date.
  7. Exploration projects are partially represented in the table. Only projects with mineralization or strategic importance are shown.
  8. Companies might own processing facilities that are not included in the table. Those facilities play important role especially for companies operating in uranium, nickel and lithium sectors.
  1. Chart is always based on the company's primary listing.
  1. Presented values are denominated in currency of the country where the company is headquartered. Values like market capitalization might differ from the values visible in other parts of the page, where the currency is always USD.
Commodity Units
  1. koz au: Thousand ounces of gold (production volume)
  2. moz au: Million ounces of gold (resource base or production volume)
  3. g/t: Grams per tonne (grade of gold or silver in ore)
  4. usd/oz au: US dollars per ounce of gold (cost metric)
  5. moz ag: Million ounces of silver (resource base or production volume)
  6. g/t ag: Grams per tonne of silver in ore (grade)
  7. usd/oz ag: US dollars per ounce of silver (cost metric)
  8. kt cu: Thousand tonnes of copper (production volume)
  9. mt ore: Million tonnes of ore (resource base for copper)
  10. %: Percent copper or uranium in ore (grade)
  11. usd/lb cu: US dollars per pound of copper (cost metric)
  12. mlb U3O8: Million pounds of uranium oxide (U3O8) (production or resource base)
  13. % eU3O8: Percent equivalent uranium oxide in ore (grade)
  14. usd/lb u3o8: US dollars per pound of uranium oxide (cost metric)
Mining Methods
  1. Open Pit: Surface mining method using large excavated terraces to extract ore
  2. Underground: Subsurface mining through shafts, tunnels, and chambers
  3. ISR (In-Situ Recovery): Solution mining method using chemical leaching without excavation
Mine Development Stages
  1. Exploration: Early-stage project searching for and defining mineral deposits
  2. Development: Mine under construction or preparation for production
  3. Operating: Active mine currently extracting and processing ore
  4. Expansion: Mine temporarily suspended or with limited production, in progress to increase production in the future
  5. Reclamation: Mine permanently closed or no longer producing, but the site is being rehabilitated
Resource Categories
  1. P&P (Proven and Probable Reserves): Highest confidence mineral resources with detailed mine plans, it's a subset of M&I
  2. M&I (Measured and Indicated Resources): Well-defined resources with good geological confidence
  3. Inf (Inferred Resources): Estimated resources with limited geological confidence
Project Assessment Studies
  1. Scoping Study: High-level assessment to determine if a project warrants further investigation
  2. PEA (Preliminary Economic Assessment): Initial economic evaluation of a mineral project
  3. Pre-Feasibility (Preliminary Feasibility Study): Intermediate-level technical and economic assessment
  4. Feasibility (Definitive Feasibility Study): Comprehensive technical and economic evaluation for investment decisions
  5. BFS (Bankable Feasibility Study): Detailed study meeting lender requirements for project financing
Financial Metrics
  1. NPV (Net Present Value): Discounted value of future cash flows minus initial investment
  2. IRR (Internal Rate of Return): Discount rate that makes NPV equal to zero
  3. Payback Period: Time required to recover initial capital investment from project cash flows
  4. AISC (All-In Sustaining Cost): Total cost per ounce including sustaining capital and corporate costs
Royalty & Streaming
  1. Royalty: Payment to landowner/government based on percentage of production value or revenue
  2. Stream: Agreement to purchase future production at predetermined price, often below market rate
  3. NSR (Net Smelter Return): Royalty based on net revenue after smelting and refining costs
  4. GRR (Gross Revenue Royalty): Royalty based on total gross revenue before any deductions
  5. NPI (Net Profits Interest): Royalty based on net profits after operating costs and capital recovery

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