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LUN.TO ·

Lundin Mining Links US$2.55 Billion Credit and Loan Facilities to Environmental and Social Performance

Debt & Credit Facilities

Corporate Office

1055 Dunsmuir Street

Suite 2800, Bentall IV

Vancouver, BC V7X 1L2

Phone +1 604 689 7842

lundinmining.com

NEWS RELEASE

Lundin Mining Links US$2.55 Billion Credit and Loan Facilities to Environmental and Social

Performance

Vancouver, May 23, 2024 (TSX: LUN; Nasdaq Stockholm: LUMI) Lundin Mining Corporation (“Lundin Mining” or the

“Company”) has amended the terms of two credit facilities – a US$1.75 billion revolving credit facility and a US$800 million

term loan (the “Facilities”) to, among other things, implement a sustainability-linked loan structure.

Lundin Mining worked with its Co-Sustainability Structuring Agents, Bank of Montreal, The Bank of Nova Scotia, ING Capital

LLC and Canadian Imperial Bank of Commerce, to establish key performance indicators (“KPIs”) and sustainability

performance targets (“SPTs”) that link Lundin Mining’s financing strategy to its sustainability strategy, whereby the interest

rate margin in the Facilities will be adjusted based on the Company’s performance relative to the SPTs.

The sustainability linked loan structure incentivizes:

• Reduced Greenhouse Gas (“GHG”) Emissions: Reduction in the Company’s absolute Scope 1 and 2 GHG

emissions, in support of its publicly disclosed 2030 GHG reduction target. Lundin Mining is focused on taking key

actions in its decarbonization journey, including the ongoing evaluation of projects focused on electrification,

renewable energy, energy efficiency, and low carbon fuels.

• Thriving Communities: An innovative social science-based community engagement KPI. Strong community

relations are essential to the long-term success of the Company and are a core element of the mining industry’s

social license to operate.

These sustainability performance targets are central to two pillars of Lundin Mining’s sustainability strategy which are

detailed in the Company’s annual Sustainability Report (link).

About Lundin Mining

Lundin Mining is a diversified Canadian base metals mining company with operations and projects in Argentina, Brazil,

Chile, Portugal, Sweden and the United States of America, primarily producing copper, zinc, gold and nickel.

The information in this release is subject to the disclosure requirements of Lundin Mining under the Swedish Financial

Instruments Trading Act. The information was submitted for publication, through the agency of the contact persons set out

below on May 23, 2024 at 14:30 Pacific 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 50

Cautionary Statement on Forward-Looking Information

Certain of the statements made and information contained herein is “forward -looking information” within the meaning of applicable Canadian securities laws. All

statements other than statements of historical facts included in this document constitute forward-looking information, including but not limited to statements regarding

the Company’s plans, prospects and business strategies; the Company’s guidance on the timing and amount of future production and its expectations regarding the

results of operations; expected costs; permitting requirements and timelines; timing and possible outcome of pending litigation; the results of any Preliminary Economic

Assessment, Feasibility Study, or Mineral Resource and Mineral Reserve estimations, life of mine estimates, an d mine and mine closure plans; anticipated market prices

of metals, currency exchange rates, and interest rates; the development and implementation of the Company’s Responsible Mining Management System; the Company’s

ability to comply with contractual and permitting or other regulatory requirements; anticipated exploration and development activities at the Company’s projects; the

Company’s integration of acquisitions and any anticipated benefits thereof; and expectations for other economic, business, an d/or competitive factors. Words such as

“believe”, “expect”, “anticipate”, “contemplate”, “target”, “plan”, “goal”, “aim”, “intend”, “continue”, “budget”, “estimate”, “may”, “will”, “can ”, “could”, “should”, “schedule”

and similar expressions identify forward-looking statements.

Forward-looking information is necessarily based upon various estimates and assumptions including, without limitation, the expectatio ns and beliefs of management,

including that the Company can access financing, appropriate equipment and sufficient labour; assumed and future price of copper, nickel, zinc, gold and other metals;

anticipated costs; ability to achieve goals; the prompt and effective integration of acquisitions; that the political environ ment in which the Company operates will

continue to suppo rt the development and operation of mining projects; and assumptions related to the factors set forth below. While these fact ors and assumptions

are considered reasonable by Lundin Mining as at the date of this document in light of management’s experience and perception of current conditions and expected

developments, these statements are inherently subject to significant business, economic and competitive uncertainties and con tingencies. Known and unknown factors

could cause actual results to differ materially from those projected in the forward-looking statements and undue reliance should not be placed on such statements and

information. Such factors include, but are not limited to: global financial conditions, market volatility and inflation, including pricing and availability of key supplies and

services; risks inherent in mining including but not limited to risks to the environment, industrial accidents, catastrophic equipment failures, unusual or unexpected

geological formations or unstable ground condi tions, and natural phenomena such as earthquakes, flooding or unusually severe weather; uninsurable risks; volatility

and fluctuations in metal and commodity demand and prices; significant reliance on assets in Chile; reputation risks related to negative p ublicity with respect to the

Company or the mining industry in general; delays or the inability to obtain, retain or comply with permits; risks relating t o the development of the Josemaria Project;

health and safety laws and regulations; risks associated with climate change; risks relating to indebtedness; economic, political and social instability and mining regime

changes in the Company’s operating jurisdictions, including but not limited to those related to permitting and approvals, nat ionalization or expropriation without fair

compensation, environmental and tailings management, labour, trade relations, and transportation; inability to attract and re tain highly skilled employees; risks

inherent in and/or associated with operating in foreign countries and emerging markets, including with respect to foreign exchange and capital controls; project financing

risks, liquidity risks and limited financial resources; health and safety risks; compliance with environmental, unavailable o r inaccessible infrastructure , infrastructure

failures, and risks related to ageing infrastructure; changing taxation regimes; the inability to effectively compete in the industry; risks associated with acquisitions and

related integration efforts, including the ability to achieve ant icipated benefits, unanticipated difficulties or expenditures relating to integration and diversion of

management time on integration; risks related to mine closure activities, reclamation obligations, environmental liabilities and closed and historical si tes; reliance on

key personnel and reporting and oversight systems, as well as third parties and consultants in foreign jurisdictions; information technology and cybersecurity risks; risks

associated with the estimation of Mineral Resources and Mineral Reserves and the geology, grade and continuity of mineral deposits including but not limited to models

relating thereto; actual ore mined and/or metal recoveries varying from Mineral Resource and Mineral Reserve estimates, estim ates of grade, tonnage, dilutio n, mine

plans and metallurgical and other characteristics; ore processing efficiency; community and stakeholder opposition; regulator y investigations, enforcement, sanctions

and/or related or other litigation; financial projections, including estimates of future expenditures and cash costs, and estimates of future production may not be

reliable; enforcing legal rights in foreign jurisdictions; risks associated with the use of derivatives; risks relating to jo int ventures and operations; environmental and

regulatory risks associated with the structural stability of waste rock dumps or tailings storage facilities; exchange rate flu ctuations; compliance with foreign laws;

potential for the allegation of fraud and corruption involving the Company, its customers, suppliers or employees, or the allegation of improper or discriminatory

employment practices, or human rights violations; risks relating to dilution; risks relating to payment of dividends; counter party and customer concentration risks;

activist shareholders and proxy solicitation matters; estimation of asset carrying values; relationships with employees and contractors, and the potential for and effects

of labour disputes or other unanticipated difficulties with or shortages of labour or interruptions in production; conflicts of interest; existence of significant shareholders;

challenges or defects in title; internal controls; risks relating to minor elements contained in concentrate products; the th reat associated with outbreaks of viruses and

infectious diseases; and other risks and uncertainties, including but not limited to those described in the "Managing Risks” section of the Company’s MD&A and the “Risks

and Uncertainties” section of the Company’s Annual Information Form for the year ended December 3 1, 2023, which are available on SEDAR+ at www.sedarplus.com

under the Company’s profile.

All of the forward-looking statements made in this document are qualified by these cautionary statements. Although the Company has attempted to identify important

factors that could cause actual results to differ materially from those contained in forward -looking information, there may be other factors that cause results not to be

as anticipated, estimated, forecast or intended and readers are cautioned that the foregoing list is not exhaustive of all fa ctors and assumptions which may have been

used. Should one or more of these risks and uncertainties materialize, or should underlying assumptions prove incorrect, actual results ma y vary materially from those

described in forward -looking information. Accordingly, there can be no assurance that forward -looking information will prove to be accurate and forward -looking

information is not a guarantee of future performance. Readers are advised not to place undue reliance on forward-looking information. The forward-looking information

contained herein speaks only as of the date of this document. The Company disclaims any intention or obligation to update or revise forward ‐looking information or to

explain any material difference between such and subsequent actual events, except as required by applicable law.