Lundin Mining Corporation (TSX: LUN) (Nasdaq Stockholm: LUMI) reported its second quarter 2025 financial results. Unless otherwise stated, results are presented in United States dollars on a 100% basis.

Jack Lundin, President and CEO commented, “Our portfolio of high-quality assets continued to generate solid results during the quarter keeping us firmly on track to achieve the midpoint of our production guidance. This resulted in over $930 million in revenue and $211 million in free cash flow from operations¹. Consolidated copper cash costs decreased to $1.92/lb, down 7% from last quarter. Importantly, our record safety performance in Q1 continued into Q2, with the Company achieving the lowest Total Recordable Injury Frequency Rate recorded in the past ten years.

“With the successful $1.4 billion sale of our European assets, we paid down our term loan and reduced net debt excluding lease liabilities¹ to $135 million as at the end of Q2. At our Capital Markets Day event in June, we showcased medium-term brownfield expansion opportunities that complement the long-term growth potential of the Vicuña Project. The Vicuña Project team continues to progress with parallel studies supporting a multi-phased development plan and an integrated technical report remains on track for Q1 2026. Our five-year financial outlook provided at the CMD event demonstrates our ability to fund these transformational growth initiatives while maintaining shareholder returns in the form of share buybacks and dividends. We look forward to continuing to build off the solid first half performance for the remainder of 2025.”

Second Quarter Operational and Financial Highlights

Strong operational results drove earnings in the second quarter supported by continued higher gold prices. The Company’s balance sheet was also strengthened from the sale of its European assets. 2025 production guidance was reaffirmed in the quarter and cash cost guidance was improved.

• Copper Production: Production of 80,073 tonnes of copper in the second quarter from continuing operations.
• Other Production: During the quarter, 38,118 ounces of gold and 2,713 tonnes of nickel were produced.
• Revenue: $937.2 million in the second quarter from continuing operations with a realized copper price¹ of $4.40 /lb and a realized gold price¹ of $3,478 /oz.
• Net Earnings and Adjusted Earnings¹: During the quarter, net earnings from continuing operations attributable to shareholders of the Company was $126.1 million ($0.15 per share) and adjusted earnings from continuing operations was $98.2 million ($0.11 per share).
• Adjusted EBITDA¹: $394.7 million was generated from continuing operations for the quarter.
• Cash Generation: Cash provided by continuing operations was $314.6 million and free cash flow from operations¹ was $211.1 million, which was impacted by significant cash income taxes paid at Candelaria in the quarter due to timing of payments and increased taxable income.
• Growth: During the quarter the Company outlined strategic aspirations to become a global top-ten copper producer and achieve copper production of over 500,000 tonnes per year and gold production of over 550,000 ounces per year:
  • On April 16, 2025 Lundin Mining completed the sale of Neves-Corvo and Zinkgruvan to Boliden AB (“Boliden”) for cash proceeds of $1,314.6 million, net of cash disposed and transaction costs, and subsequently repaid in full its term loan of $1,150 million and repaid $170.0 million of amounts drawn on its revolving credit facility.
  • During the quarter the Company announced a Mineral Resource estimate (the “Vicuña Mineral Resource”) for the Vicuña Project which highlighted one of the world’s largest copper, gold and silver Mineral Resources, with the potential to support a globally ranked mining complex. The Company continues to advance the integrated study of the Filo del Sol and Josemaria deposits, which is expected to be completed in Q1 2026. The resource contains:
    • Contained copper of 13 million tonnes (“Mt”) Measured and Indicated at 0.35% copper (“M&I”) and 25 Mt Inferred at 0.32% copper.
    • Contained gold of 32 million ounces (“Moz”) M&I at 0.27 g/t gold and 49 Moz Inferred at 0.19 g/t gold.
    • Contained silver of 659 Moz M&I at 5.6 g/t silver and 808 Moz Inferred at 3.2 g/t silver.
  • On June 18, 2025, the Company hosted a Capital Markets Day, which outlined medium-term, low-cost brownfield expansion opportunities alongside the Vicuña Project which offers transformational long-term growth potential. The Company also provided guidance on financial performance for the next five years that outlined its ability to fund future growth plans.
• 2024 Sustainability Report Published: The Company continues to demonstrate its commitment to sustainability as an integral part of the Company’s overall strategy for disciplined growth and released its annual 2024 Sustainability report on May 26, 2025.
• Shareholder Returns: A quarterly dividend of $0.0275 per share has been declared. In addition, the Company purchased 4,629,000 common shares during the quarter at an average share price of C$10.91 for total consideration of $36.2 million under its normal course issuer bid. So far during 2025, Lundin Mining has cancelled 13,058,800 common shares at a cost of approximately $104.0 million.
• Outlook: The Company reaffirms it is tracking to full year guidance for production of all metals, including 303,000 – 330,000 tonnes of copper. The Company has further revised cash cost guidance at Chapada which supports its previously lowered overall consolidated cash cost guidance for the Company to $1.95 to $2.15 per pound cash cost. Annual sustaining capital expenditure guidance has remained unchanged with reductions at Caserones being offset by higher capital expenditure at Chapada. Expansionary capital guidance has increased, driven by an increase in the Vicuña Project budget.
• Discontinued Operations: On April 16, 2025, the Company completed the sale of its European assets, Neves-Corvo and Zinkgruvan, to Boliden. The operating results of the Neves-Corvo and Zinkgruvan reporting segments have been classified as net earnings from discontinued operations. Net earnings from discontinued operations for the quarter of $102.4 million includes a gain on disposal of $106.4 million, net of income tax.

Summary Financial Results

• For the quarter ended June 30, 2025, the Company generated revenue from continuing operations of $937.2 million (Q2 2024 – $878.3 million).
• Gross profit from continuing operations for the quarter of $271.3 million was $42.8 million higher than in the prior year comparable period of $228.5 million. The increase was primarily due to higher sales volume, lower treatment charges, and cost savings from operational efficiencies.
• Net earnings from continuing operations for the quarter of $159.6 million was higher than in the prior year comparable period of $119.4 million. The increase was primarily due to an increase in gross profit combined with lower interest expense due to the repayment of debt in the quarter with cash proceeds received from the sale of the Neves-Corvo and Zinkgruvan operations.
• Adjusted earnings² from continuing operations for the quarter of $98.2 million, increased from $83.4 million primarily as a result of higher gross profit.
• Cash provided by operating activities related to continuing operations for the quarter of $314.6 million represented a decrease of $125.4 million from the prior year comparable period of $440.0 million. The decrease was primarily due to significant cash income taxes paid in the quarter of $168.0 million (Q2 2024 – $47.1 million), primarily at Candelaria, and a reduction in working capital inflows of $111.4 million to $37.4 million from $148.8 million in the prior year comparable period.
• In the quarter, sustaining capital expenditures³ from continuing operations of $115.9 million were lower than in the prior year comparable period of $126.6 million. The reduction was primarily due to lower spending at Candelaria from reduced deferred stripping.
• Expansionary capital expenditures² of $33.7 million in the quarter were lower than $87.1 million in the prior year comparable period due to the formation of Vicuña, a 50/50 joint arrangement with BHP Investments Canada Inc. (“BHP”) (the “Joint Arrangement”), on January 15, 2025. From this date, the Company’s expansionary capital expenditures include 50% of Vicuña’s capital expenditures.
• Free cash flow² from continuing operations for the quarter of $165.0 million was lower than in the prior year comparable period of $226.3 million primarily due to reduced cash provided by operating activities related to continuing operations, partially offset by lower sustaining and expansionary capital expenditures.
• As at August 6, 2025, the Company had cash of approximately $276 million and net debt excluding lease liabilities² of approximately $139 million.

Operational Performance

Total Production

Candelaria (80% owned): Candelaria produced 36,999 tonnes of copper and 20,574 ounces of gold in concentrate on a 100% basis during the quarter. Production in the quarter and year-to-date periods were positively impacted by increased throughput as a result of softer ore feed and higher ball mill runtime due to rescheduled maintenance in the quarter. Mining and processing in the quarter was focused on Phase 11 with some contribution from higher grade areas of Phase 12. Cash cost⁴ of $1.81/lb during the quarter was positively impacted by higher production and favourable foreign exchange.

Caserones (70% owned): Caserones produced 29,290 tonnes of copper and 380 tonnes of molybdenum on a 100% basis during the quarter. Production in the quarter was impacted by lower grades as a result of mine sequencing with mining focused on Phases 6 and 7 as mining of Phase 5 nears completion. Throughput was impacted slightly by a temporary reduction in primary crusher availability during the quarter and copper cathode production benefitted from increased material placed on the leach pad. Cash cost of $2.45/lb in the quarter benefitted from lower mining and milling costs, as well as lower treatment and refining charges and favorable foreign exchange.

Chapada (100% owned): Chapada produced 11,274 tonnes of copper and 17,544 ounces of gold in concentrate during the quarter. Ore from the North and South open pits was mined and processed, resulting in higher grades as compared to the prior quarter which focused on processing ore from the older low-grade stockpile. Cash cost of $0.75/lb was the lowest amount since 2021, and benefitted from higher gold by-product credits as a result of higher realized gold prices, combined with favourable foreign exchange and higher copper sales volume.

Eagle (100% owned): Eagle produced 2,713 tonnes of nickel and 2,510 tonnes of copper in the quarter. Production was impacted by a temporary reduction in equipment availability and reduced throughput as a result of an unplanned four-day power outage. Production gradually increased to normal levels following the completion of ramp rehabilitation at Eagle East in the previous quarter. Nickel cash cost of $2.02/lb was positively impacted by higher by-product credits and higher nickel sales volumes.

Outlook

The Company remains on track to meet annual production guidance for all metals. In light of higher gold prices, the cash cost guidance range for Chapada is further reduced from that announced on June 17, 2025.

At Candelaria, production in the second half of the year is expected to be in line with the first half of the year to meet the Company’s annual production guidance for 2025. Cash costs at Candelaria are tracking to the mid-point of guidance for the full year.

At Caserones, higher copper head grades anticipated in the second half of the year, together with strong cathode production are expected to sustain the Company’s annual production guidance for 2025.

At Chapada, production is expected to be weighted to the second half of the year as copper grades and recoveries in the second half of the year are expected to remain in line with the second quarter. Mine sequencing is expected to result in processing increased fresh ore from the North and South pits and less lower-grade stockpile material. Cash costs are expected to continue to benefit from higher gold prices, leading to a further reduction in annual guidance as compared to that previously announced by the Company (see News Release dated June 17, 2025).

At Eagle, grades and mining rates are expected to normalize in the second half of the year, supporting annual production guidance. Mining at the Eagle deposit is expected to be completed towards the end of the year and higher grade ore from Eagle East will be sourced.

See below for revised 2025 Guidance:

2025 Production and Cash Cost Guidance^a

2025 Capital Expenditure Guidance^a,b,c

2025 Exploration Investment Guidance

Total exploration expenditure guidance for 2025 remains at $40 million, which has potential to increase subject to successful exploration results at the Boulderdash property. Drilling metres across the Company have been re-allocated to account for the anticipated earn-in agreement with Talon Metal Corp. and the Boulderdash property.

Exploration

During the quarter, exploration activity focused on in-mine and near-mine targets at the Company’s operations. Exploration drilling at Candelaria was focused on Candelaria South (Mariana) and Candelaria Norte with a total of 1,533m completed during the quarter.

At Caserones, drilling started for the year early in the quarter with one rig at the Caserones pit targeting deep high-grade copper breccias and two rigs at Angelica targeting copper sulphides beneath the Angelica oxide deposit, totaling 3,097m.

A total of 5,077m was drilled using two rigs at Chapada. One rig was in the Saúva resource area, focusing on adding high grade resources. A second rig was testing shallow targets outside the Saúva resource area and near-mine targets.

At Eagle, drilling commenced at the Boulderdash property with two rigs targeting potential extensions of the known nickel-copper mineralized intrusion. This drilling is part of an exclusivity agreement with Talon to negotiate an earn-in agreement for the right to acquire up to a 70% ownership interest in the Boulderdash property that is near the Company’s Eagle mine. Total drilling for the quarter was 1,874m, as part of the proposed 10,000m Phase 1 earn-in drilling program.

Vicuña

On January 15, 2025, the Company completed the joint acquisition of all of the issued and outstanding common shares of Filo Corp. not already owned by Lundin Mining and concurrently formed the Joint Arrangement, resulting in the Company indirectly holding a 50% interest in Vicuña Corp., an independently managed joint operation which owns the Josemaria project in Argentina and the Filo del Sol project in Argentina and Chile. BHP indirectly owns the remaining 50% interest in Vicuña.

In 2025, work continues to focus on advancing studies related to the synergies between the Filo del Sol and Josemaria projects, continuing the drilling program, and progressing the development of the Josemaria project.

Activities at Josemaria during the quarter focused on the completion and submission of the Environmental Impact Assessment (“EIA”), power infrastructure planning, and continued advancement of the water program. Mobilization and preparatory works for the northern access road commenced in the quarter with full construction scheduled to begin later in 2025 following the winter season. Work also continued on a multi-phased development concept pertaining to the Josemaria and Filo del Sol deposits. An integrated technical report is targeted to be complete by early 2026.

Government relations activities continued with both the national and provincial governments. In conjunction, discussions on provincial agreements continued to be advanced. Work also progressed in the quarter on an application for the Argentinean Basis Law – Incentive Regime for Large Investments (“RIGI”).

Community investment programs were launched in 2025 with a focus on gender, youth training, cooperative development, and rural livelihoods.

On May 4, 2025, the Company announced an initial Mineral Resource estimate for the Filo del Sol sulphide deposit, an update to the Mineral Resource estimate for the Filo del Sol oxide deposit and an update to the Mineral Resource estimate for the Josemaria deposit, which highlighted the combined Vicuña Project as one of the largest copper, gold and silver resources in the world. Details of the Vicuña Mineral Resource are set out in the “NI 43-101 Technical Report on the Vicuña Project, Argentina and Chile” with an effective date of April 15, 2025 (the “Vicuña Technical Report”).

The Filo del Sol and Josemaria deposits have significant high-grade mineralization that could provide the initial years of mining for the Project.

• Filo del Sol high-grade core at cut-off of 0.75% copper equivalent (“CuEq”): 606 million Mt (M&I) at 1.14% CuEq⁵ (0.74% Cu) for contained metal of 4.5 Mt copper at 0.74%, 9.6 Moz gold at 0.49 g/t and 259 Moz silver at 13.3 g/t.
• Near surface Josemaria high-grade core at cut-off of 0.60% CuEq: 196 Mt (M&I) at 0.73% CuEq⁶ (0.50% Cu) for contained metal of 978 kt copper at 0.50%, 2.4 Moz gold at 0.38 g/t and 11 Moz silver at 1.7 g/t.

The Filo del Sol deposit also contains copper oxide mineralization at surface.

• Lower capital intensity heap leach oxide cap of 434 Mt (M&I) at 0.34% copper (1.5 Mt), 0.28 g/t gold (3.9 Moz) and 2.5 g/t silver (35 Moz)
• High-grade oxides at a cut-off of 0.60% CuEq of 181 Mt (M&I) at 1.05% CuEq⁷(0.50% Cu) for contained metal of 911 kt copper at 0.50%, 2.3 Moz gold at 0.39 g/t and 230 Moz silver at 39.6 g/t.

There is clear potential for expansion. Drilling at Filo del Sol bottomed in mineralization and is open at depth, while drilling at the Flamenco zone approximately 2 kilometers to the south has intercepted mineralization beyond the limits of the current resource pit shell.

During the quarter, the Company spent $32.2 million in capital expenditures compared to $87.1 million in the prior year comparable period. On a year-to-date basis, the Company spent $74.9 million compared to $143.1 million in the prior year comparable period. Reduced spending in both the quarter and year-to-date periods is due to the formation of Vicuña on January 15, 2025. From this date, the Company’s expansionary capital expenditures include 50% of Vicuña’s capital expenditures.

Expansionary Projects

The Company has a number of brownfield expansionary projects that are expected to contribute to medium-term growth in its existing operating asset portfolio. Combined, these opportunities could add 30,000 to 40,000 tonnes of copper production growth and 60,000 to 70,000 ounces of annual gold production through low capital intensity growth projects.

Candelaria

Projects are ongoing to support the mine life extension under the Environmental Impact Assessment (“2040 EIA”). During the quarter, $1.5 million was spent on relocation of electrical transmission lines to allow for expansion of the open pit. During the year-to-date period, $21.7 million of spending also included key equipment deliveries as well as the acquisition of mining rights.

Additionally, the Company is working on an expansion opportunity which re-envisions the previously disclosed Candelaria Underground Expansion Project (“CUGEP”) to a lower-capital intensive option with only marginally lower production rates. The Company forecasts that this could increase underground throughput capacity by approximately 50% to 60% to ~22,000 tonnes per day from current levels of 12,000 to 14,000 tonnes per day and increase annual copper production by approximately 10% or 14,000 tonnes of copper per year. The opportunity includes insourcing of the Company’s underground mining contract, which is anticipated to provide incremental copper production gains from higher productivity rates through improved mechanical availability and higher development rates. Initial recruitment has begun as part of the internalization process, along with training and licensing of blast technicians. It is expected that by mid-2026, the initial underground mining crews will have been internalized.

Caserones

While cathode production at Caserones has remained strong over recent quarters, the Company is anticipating that through continued improvements with its leaching practices and additional oxide material, incremental future production can be realized in the range of 7,000 to 10,000 tonnes of copper per year.

Chapada

The development of the Saúva deposit, approximately 15 kilometers from the Chapada mine, represents a near mine opportunity to add approximately 15,000 to 20,000 tonnes of copper production per year and 50,000 to 60,000 ounces of gold production per year, representing 50% and 100% production increases respectively. This is expected to be achieved through the installation of additional grinding capacity and by offsetting lower grade material with higher grade ore from Saúva. Permitting and technical work is ongoing to further define the project and the Company anticipates completing a pre-feasibility study by the end of 2025.

About Lundin Mining

Lundin Mining is a diversified Canadian base metals mining company with projects or operations focused in Argentina, Brazil, Chile and the United States of America, and primarily producing copper, gold and nickel.

The information in this release is subject to the disclosure requirements of Lundin Mining under the EU Market Abuse Regulation. The information was submitted for publication, through the agency of the contact persons set out below on August 6, 2025 at 17:30 Vancouver Time.

Technical Information

The scientific and technical information in this document pertaining to the Vicuña Mineral Resource is based on the Vicuña Technical Report. The Vicuña Technical Report was prepared by Luke Evans, M.Sc., P.Eng. of SLR Consulting (Canada) Ltd, Paul Daigle, P.Geo. of AGP Mining Consultants Inc., Sean Horan, P.Geo. of Resource Modeling Solutions Ltd., Jeffrey Austin, P.Eng. of International Metallurgical and Environmental Inc., and Bruno Borntraeger, P.Eng. of Knight Piésold Ltd, each of whom reviewed, verified and approved the scientific and technical information pertaining to the Vicuña Mineral Resource that is related to his respective scope of responsibility. Each of the foregoing individuals is a “Qualified Person” as defined by National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”) and independent of the Company.

The scientific and technical information in this document other than that pertaining to the Vicuña Mineral Resource has been reviewed and approved in accordance with NI 43-101 by Eduardo Cortés, Registered Member (Comisión Calificadora de Competencias en Recursos y Reservas Mineras (Chilean Mining Commission)), Vice President, Mining & Resources at Lundin Mining, a “Qualified Person” under NI 43-101. Mr. Cortés has verified the data disclosed in this document and no limitations were imposed on his verification process.

The Vicuña Mineral Resource estimates are shown on a 100% basis and have an effective date of April 15, 2025. For further information related to the Vicuña Mineral Resource, including the key assumptions, parameters, and methods used to estimate the Vicuña Mineral Resource, risks and cautionary statements, see the Vicuña Technical Report and the Company’s News Release “Lundin Mining Announces Initial Mineral Resource at Filo Del Sol Demonstrating One of the World’s Largest Copper, Gold, and Silver Resources” dated May 4, 2025.