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LUN.TO ·

Lundin Mining First Quarter 2025 Results

Financials

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NEWS RELEASE

Lundin Mining First Quarter 2025 Results

Vancouver, May 7, 2025 (TSX: LUN; Nasdaq Stockholm: LUMI) Lundin Mining Corporation (“Lundin Mining” or the

“Company”) today reported its first quarter 2025 financial results. Unless otherwise stated, results are presented in United

States dollars on a 100% basis.

Jack Lundin, President and CEO commented, “In the quarter we produced 76,774 tonnes of copper and 31,849 ounces of

gold, keeping us firmly on track to achieve our annual guidance. Higher realized gold prices and solid operating

performance drove nearly $1 billion in revenue, alongside $388 million in adjusted EBITDA from continuing operations and

$337 million in adjusted operating cash flow from continuing operations. Our consolidated copper cash costs came in at

$2.07 per pound, within the lower end of our guidance range, demonstrating our continued focus on cost discipline.

"Beyond operations, we completed several key strategic initiatives, including the $1.4 billion sale of our European assets

on April 16th, which has meaningfully strengthened our balance sheet. We also introduced a new shareholder distribution

policy that targets $220 million in annual shareholder returns.

"In January we finalized the joint acquisition of Filo Corp. with our partner BHP to form Vicuña Corp., and earlier this week

we announced the combined Mineral Resource estimate for the Filo del Sol and Josemaria deposits collectively, the Vicuña

project, demonstrating a significant future growth opportunity for the Company. This quarter reflects the strength of our

strategy and positions us well for the year ahead.”

First Quarter Operational and Financial Highlights

On April 16, 2025, the Company closed the sale of its European assets, Zinkgruvan and Neves -Corvo, to Boliden for cash

consideration of $1,402 million. The financial results from these assets are reported as “discontinued operations” in the

Company’s financial statements.

• Copper Production: Production of 76,774 tonnes of copper in the first quarter from continuing operations.

• Other Production: During the quarter, 32,000 ounces of gold and 2,296 tonnes of nickel were produced.

• Revenue: $963.9 million in the first quarter from continuing operations with a realized copper price 1 of $4.63 /lb and

a realized gold price1 of $3,349 /oz.

• Net Earnings and Adjusted Earnings 1: During the quarter, net earnings from continuing operations attributable to

shareholders of the Company was $138.1 million ($0.16 per share) and adjusted earnings from continuing operations

was $93.9 million ($0.11 per share).

• Adjusted EBITDA1: $387.9 million was generated from continuing operations for the quarter.

• Cash Generation: Cash provided by continuing operations was $122.3 million and free cash flow from operations -

continuing operations 1 was $21.6 million, which was impacted by lower operating cash flow as a result of a $214.7

million negative change in working capital during the quarter.

• Growth: The Company completed several significant initiatives that redefined its asset portfolio and positioned the

Company for long-term growth:

◦ During the quarter the Company completed the joint acquisition of Filo Corp. with BHP and formed the

50/50 joint arrangement, Vicuña Corp. ("Vicuña"), to hold the Filo del Sol project and the Josemaria project.

◦ The Company entered into an exclusivity agreement with Talon Metals Corp. on March 5, 2025 to acquire a

highly prospective exploration project ("Boulderdash") adjacent to the Company's Eagle Mine.

◦ During the quarter Lundin Mining announced a new shareholder distribution policy that provides an annual

return of approximately $220 million per year to shareholders through a combination of dividends and

share buybacks.

1 These are non -GAAP measures. Please refer to the Company's discussion of non -GAAP and other performance measures in its Management's Discussion

and Analysis ("MD&A") for the quarter ended March 31, 2025 and the Reconciliation of Non-GAAP measures section at the end of this news release.

◦ On April 16, 2025 Lundin Mining completed the sale of Neves -Corvo and Zinkgruvan to Boliden for cash

proceeds of $1,402 million and subsequently paid off its term loan of $1,150 million.

◦ 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.

• Outlook: The Company reaffirms it is tracking to full year guidance for production, cash costs and capital

expenditures. The Company continues to benefit from stronger throughput at Candelaria and Caserones, while

higher gold prices have improved cash costs which are expected to continue into the second quarter.

• Assets and liabilities held for sale and discontinued operations: All assets and liabilities relating to the Neves -

Corvo and Zinkgruvan reporting segments have been classified as current assets and current liabilities held for sale

as at March 31, 2025. The operating results of these segments have been classified as earnings (loss) from

discontinued operations.

Total assets of $1,442.2 million and liabilities of $407.2 million have been classified as held for sale for this purpose.

Net loss from discontinued operations of $13.8 million represents the net loss of $39.3 million and the net earnings

of $25.5 million from Neves-Corvo and Zinkgruvan, respectively, for the quarter ended March 31, 2025.

Summary Financial Results

Three months ended

March 31,

(US$ millions continuing operations except where noted, except per share amounts) 2025 2024

Revenue 963.9 812.3

Gross profit 308.9 197.5

Attributable net earningsa 138.1 38.3

Net earnings 181.4 83.0

Adjusted earningsa,b (all operations) 146.2 45.2

Adjusted earningsa,b — continuing operations 93.9 56.4

Adjusted earnings (loss)a,b — discontinued operations 52.2 (11.1)

Adjusted EBITDAb (all operations) 450.8 362.9

Adjusted EBITDAb — continuing operations 387.9 338.5

Adjusted EBITDAb — discontinued operations 62.8 24.4

Basic and diluted earnings per share ("EPS")a (all operations) 0.15 0.02

Basic and diluted earnings per share ("EPS")a — continuing operations 0.16 0.05

Basic and diluted loss per share ("EPS")a — discontinued operations (0.02) (0.03)

Adjusted EPSa,b (all operations) 0.17 0.06

Adjusted EPSa,b — continuing operations 0.11 0.07

Adjusted EPSa,b — discontinued operations 0.06 (0.01)

Cash provided by operating activities (all operations) 177.0 267.5

Cash provided by operating activities - continuing operations 122.3 232.2

Cash provided by operating activities - discontinued operations 54.7 35.4

Adjusted operating cash flowb (all operations) 392.8 313.7

Adjusted operating cash flowb — continuing operations 337.0 294.0

Adjusted operating cash flowb — discontinued operations 55.8 19.7

Adjusted operating cash flow per shareb (all operations) 0.46 0.41

Adjusted operating cash flow per shareb — continuing operations 0.40 0.38

Adjusted operating cash flow per shareb — discontinued operations 0.07 0.03

Free cash flowb (all operations) (47.5) (1.7)

Free cash flowb — continuing operations (53.1) (0.3)

Free cash flowb — discontinued operations 5.6 (1.4)

Free cash flow from operationsb (all operations) 32.0 67.7

Free cash flow from operationsb — continuing operations 21.6 66.5

Free cash flow from operationsb— discontinued operations 10.4 1.2

Cash and cash equivalents 341.6 365.5

Net debt excluding lease liabilitiesb (1,441.7) (981.4)

Net debtb

(1,699.3) (1,241.9)

a Attributable to shareholders of Lundin Mining Corporation.

b These are non-GAAP measures. Please refer to the Company's discussion of non -GAAP and other performance measures in its Management's Discussion

and Analysis for the quarter ended March 31, 2025 and the Reconciliation of Non -GAAP Measures section at the end of this news release.

• For the quarter ended March 31, 2025, the Company generated revenue from continuing operations of $963.9

million (Q1 2024 - $812.3 million) and from discontinued operations of $180.1 million (Q1 2024 - $124.7 million).

• Gross profit from continuing operations for the quarter of $308.9 million was $111.5 million higher than in the prior

year comparable period of $197.5 million. The increase was primarily due to higher realized copper and gold prices,

lower treatment charges, and favourable foreign exchange. Gross profit from discontinued operations for the

quarter of $69.9 million increased from a gross loss of $12.1 million in the prior year comparable period primarily

due to no depreciation being taken on assets classified as held for sale.

• Net earnings from continuing operations for the quarter of $181.4 million increased from the prior year comparable

period of $83.0 million primarily due to an increase in gross profit. Net loss from discontinued operations for the

quarter of $13.8 million (Q1 2024 - net loss of $24.4 million) primarily resulted from the Euro strengthening in the

quarter, resulting in a non-cash impairment of $65.7 million net of tax (Q1 2024 - nil) to reduce the carrying value of

Neves-Corvo to the cash proceeds subsequently received for this asset. This loss was partially offset by increased

gross profit from discontinued operations.

• Adjusted earnings from continuing operations for the quarter of $93.9 million, increased from the prior year

comparable period of $56.4 million as a result of higher gross profit.

• Cash provided by operating activities related to continuing operations for the quarter of $122.3 million represented

a decrease of $109.8 million from the prior year comparable period of $232.2 million . The decrease was primarily

due to negative working capital outflows of $214.7 million (Q1 2024 - $61.8 million ) including a buildup of trade

receivables from shipments toward the end of the quarter and the recognition of $45.0 million of revenue at

Caserones for shipments in early January for which payment had been received in December 2024. The shipments

of copper concentrate were delayed due to certain operational and weather -related issues. Cash provided by

operating activities related to discontinued operations for the quarter was $54.7 million (Q1 2024 - $35.4 million).

• For the quarter, sustaining capital expenditures 1 from continuing operations of $112.6 million were lower than in

the prior year comparable period of $176.5 million. The net reduction was primarily due to lower spending at

Candelaria from reduced deferred stripping and reduced spending on the Los Diques tailing storage facility.

Sustaining capital expenditures, from discontinued operations, related to Neves -Corvo and Zinkgruvan were $27.7

million and $21.3 million , respectively, for the quarter.

• Expansionary capital expenditures1 of $62.9 million for the quarter were higher than $56.0 million in the prior year

comparable period as a result of initiatives at Candelaria related to the mine life extension to 2040 under the

Environmental Impact Assessment ("2040 EIA"), partially offset by lower allocated spending at the Josemaria Project

due to the formation of Vicuña, which completed on January 15, 2025. As of the formation date, 50% of Vicuña's

capital expenditures are included in the Company's capital expenditures.

• Free cash flow 1 (all operations) for the quarter of negative $(47.5) million was lower than in the prior year

comparable period of negative $(1.7) million primarily due to less cash provided by operating activities due to

negative changes in working capital, partially offset by lower sustaining capital expenditures. Free cash flow from

discontinued operations for the quarter was $5.6 million.

• As at May 7, 2025, the Company had cash of approximately $252.6 million and net debt excluding lease liabilities1 of

approximately $279.6 million.

1 These are non -GAAP measures. Please refer to the Company's discussion of non -GAAP and other performance measures in its Management's Discussion

and Analysis ("MD&A") for the quarter ended March 31, 2025 and the Reconciliation of Non-GAAP measures section at the end of this news release.

Operational Performance

Total Production

(Contained metal)a

2025 2024

Q1 Total Q4 Q3 Q2 Q1

Continuing Operations

Copper (t)b 76,774 336,875 94,094 91,772 71,614 79,395

Nickel (t) 2,296 7,486 1,617 893 1,721 3,255

Gold (koz)b 32 158 46 47 32 33

Molybdenum (t)b 602 3,183 912 693 714 864

Discontinued Operations

Copper (t) 7,094 32,192 7,397 8,083 8,094 8,618

Zinc (t) 48,948 191,704 51,946 46,610 47,460 45,688

a - Tonnes (t) and thousands of ounces (koz).

b - Candelaria and Caserones production are on a 100% basis.

Candelaria (80% owned): Candelaria produced 37,071 tonnes of copper and approximately 21,000 ounces of gold in

concentrate on a 100% basis during the quarter. Production in the quarter was positively impacted by increased

throughput as a result of higher than anticipated ore softness in sections of Phase 11 in the open pit. The majority of the

material processed was from Phase 11, together with material from Phase 12 and long -term stockpiles. Cash cost 3of

$1.75/lb was positively impacted by favorable by-product credits driven primarily by higher metal prices.

Caserones (70% owned): Caserones produced 28,709 tonnes of total copper and 602 tonnes of molybdenum on a 100%

basis during the quarter. Production was positively impacted by higher throughput in the mill as a result of operational

efficiencies that mitigated lower than anticipated grades due to sequencing. Revenue and production costs increased as a

result of higher sales volumes as two shipments delayed from December 2024 were completed in the quarter. Cash cost

of $2.52/lb in the quarter was impacted by higher contractor and maintenance costs.

Chapada (100% owned): Chapada produced 8,909 tonnes of copper and approximately 11,000 ounces of gold in

concentrate during the quarter. Both metals were impacted by lower recoveries as a result of increased processing of ore

from the older low -grade stockpile. Production costs were reduced by lower sales volumes and favourable foreign

exchange. Cash cost of $1.47 /lb also benefitted from favourable foreign exchange, combined with higher gold by -product

credits.

Eagle (100% owned): Eagle produced 2,296 tonnes of nickel and 2,085 tonnes of copper in the quarter. Production was

impacted by lower grades than anticipated at the beginning of the quarter and winter weather which affected ore haulage.

Ramp rehabilitation was completed during the quarter, and normal levels of production are expected for the remainder of

the year. Production costs were reduced primarily by lower sales volumes. Nickel cash cost of $3.94/lb was positively

impacted by lower mining costs. During the quarter, the Company entered into an exclusivity agreement with Talon Metals

Corp. ("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 Eagle.

Neves-Corvo (100% owned): Neves-Corvo produced 6,123 tonnes of copper and 27,691 tonnes of zinc during the quarter.

Cash cost during the quarter was $1.69/lb.

Zinkgruvan (100% owned): Zinkgruvan produced 21,257 tonnes of zinc and 7,586 tonnes of lead in the quarter. Zinc cash

cost during the quarter was $0.40/lb.

3 This is a non-GAAP measure. Please refer to the Company's discussion of non -GAAP and other performance measures in its Management's Discussion and

Analysis ("MD&A") for the quarter ended March 31, 2025 and the Reconciliation of Non-GAAP measures section at the end of this news release.

Outlook

The Company reaffirms its guidance for production, cash costs, capital expenditures, and exploration that was released on

January 16, 2025. In regard to operations, the Company expects that all of its sites will meet their respective guidance

ranges as published.

At Candelaria, softer ore is expected to continue into the second quarter which will benefit throughput in the mill as seen

in this quarter. The Company expects cash costs in the second quarter to be in line with the first quarter, benefiting from a

higher gold price.

At Caserones, the performance of the mill, together with expected grade increases and strong cathode production are

expected to sustain the Company's annual production guidance for 2025.

At Chapada, production is second half of the year weighted, copper grades and recoveries are expected to increase during

this period. Sequencing of the mine plan forecasts processing less lower-grade stockpile and more fresh ore.

At Eagle, it is expected that mine sequencing and grades will normalize during Q2 which supports maintaining the

Company's annual production guidance. Additionally, 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 the 2025 Guidance as released on January 16, 2025:

2025 Production and Cash Cost Guidancea

Guidance

(contained metal) Production Cash Cost ($/lb)b

Copper (t) Candelaria (100%) 140,000 – 150,000 1.80 – 2.00c

Caserones (100%) 115,000 – 125,000 2.40 – 2.60

Chapada 40,000 – 45,000 1.80 – 2.00d

Eagle 8,000 – 10,000

Total 303,000 – 330,000 2.05 – 2.30

Gold (koz) Candelaria (100%) 78 – 88

Chapada 57 – 62

Total 135 – 150

Nickel (t) Eagle 8,000 – 11,000 3.05 – 3.25

a. Guidance as outlined in the news release 'Lundin Mining Announces Record Production Results for 2024 and Provides 2025 Gui dance' dated January 16,

2025.

b. 2025 cash costs are based on various assumptions and estimates, including but not limited to: production volumes, commodity prices (Cu: $4.40/lb, Au:

$2,500/oz, Mo: $17.00/lb, Ag: $30.00/oz), foreign exchange rates (USD/CLP:900, USD/BRL:5.50) and operating costs. Cash cost i s a non-GAAP measure - see

section 'Non-GAAP and Other Performance Measures' of this MD&A for discussion.

c. 68% of Candelaria's total gold and silver production are subject to a streaming agreement. Cash costs are calculated based on receipt of approximately

$433/oz gold and $4.32/oz silver.

d. Chapada's cash cost is calculated on a by -product basis and does not include the effects of its copper stream agreements. Effects of the copper stream

agreements are reflected in copper revenue and will impact realized price per pound.

2025 Capital Expenditure Guidanceb

($ millions) Guidancea

Candelaria (100% basis) 205

Caserones (100% basis) 215

Chapada 85

Eagle 25

Total Sustaining 530

Expansionary - Candelaria (100% basis) 50

Expansionary - Vicuña Joint Arrangement (50% basis) 155

Total Capital Expenditures 735

a. Guidance as outlined in the news release 'Lundin Mining Announces Record Production Results for 2024 and Provides 2025 Gui dance' dated January 16,

2025

b. Sustaining capital expenditure is a supplementary financial measure, and expansionary capital expenditure is a non -GAAP measure – see Section "Non -

GAAP and Other Performance Measures" of this MD&A for discussion.

2025 Exploration Investment Guidance

Total exploration expenditure guidance for 2025 is $40 million.

Vicuña

On January 15, 2025, the Company completed the Filo Acquisition and the Joint Arrangement, resulting in the Company

indirectly holding a 50% interest in Vicuña Corp., 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.

Vicuña will be led by Dave Dicaire, General Manager, Vicuña, former Executive Vice President of the Josemaria Project at

Lundin Mining. During the quarter, integration efforts were prioritized, with employees from the Josemaria and Filo del Sol

project teams transitioning to Vicuña to ensure continuity and preserve project knowledge. Recruitment for key leadership

positions also commenced.

In 2025, work will 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 centered on the ongoing update of the Environmental Impact Assessment ("EIA")

and continued advancement of the water program. Fieldwork progressed on the water program, geotechnical studies, and

the wetlands biodiversity offset initiatives. In addition, the contract for the construction of the Northern Access Road was

awarded, with construction scheduled to begin in mid-2025. Work also continued on a multi-phased development concept

pertaining to the Josemaria and Filo del Sol ore bodies. 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. A plan for preparation and submission of the Basis Law - Incentive

Regime for Large Investments ("RIGI") application was advanced.

Community investment programs were launched with a focus on gender, youth training, cooperative development, and

rural livelihoods.

Drilling during the quarter of 16,650 m primarily focused on step -out holes to both the east and west designed to expand

the Filo del Sol Mineral Resource. Additionally, an exploration hole in the exploration sector of Cumbre Verde further north

was finished at 1,400 m, of which 436 m were drilled in Q1.

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.

During the quarter, the Company spent $42.7 million in capital expenditures compared to $56.0 million in the prior year

comparable period. Reduced spending was primarily due to capital expenditures for the Josemaria Project being recorded

in Vicuña at the Company's 50% attributable share compared to 100% in the prior year comparable period.

Senior Leadership Appointment

The Company would also like to announce the executive appointment of Vlada Cvijetinovic as Vice President, Legal &

Corporate Secretary.

Vlada Cvijetinovic

Mr. Cvijetinovic is Vice President, Legal & Corporate Secretary and is responsible for advising on legal and regulatory

matters and leading Board operations and the Company's corporate governance framework. He is an experienced legal

executive with over 10 years of experience in corporate and securities laws, corporate governance and strategic

transactions.

Prior to joining Lundin Mining, Mr. Cvijetinovic was General Counsel at Hyperion Resource Partners, and previously held

senior leadership roles with Lithium Argentina, Newcrest Mining Limited and Pretium Resources Inc.

Mr. Cvijetinovic holds a Bachelor’s degree in Commerce and a Juris Doctor, both from the University of British Columbia.

About Lundin Mining

Lundin Mining is a diversified Canadian base metals mining company with projects or operations focused i n 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

May 7, 2025 at 15:35 Vancouver Time.

For further information, please contact:

Stephen Williams, Vice President, Investor Relations +1 604 806 3074

Robert Eriksson, Investor Relations Sweden: +46 8 440 54 40

Technical Information

The scientific and technical information in this press release has been prepared in accordance with the disclosure

standards of National Instrument 43-101 (“NI 43-101”) and has been reviewed by Cole Mooney, Director, Resource Geology

at Lundin Mining, a "Qualified Person" under NI 43 -101. Mr. Mooney has verified the data disclosed in this release and no

limitations were imposed on his verification process.

Reconciliation of Non-GAAP Measures

The Company uses certain performance measures in its analysis. These performance measures have no standardized

meaning within generally accepted accounting principles under International Financial Reporting Standards and,

therefore, amounts presented may not be comparable to similar data presented by other mining companies. For

additional details please refer to the Company’s discussion of non -GAAP and other performance measures in its

Management’s Discussion and Analysis for the three months ended March 31 , 2025 which is available on SEDAR+ at

www.sedarplus.com.