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Lundin Mining Provides Update on Chapada Operations

Corporate Updates

Corporate Office

150 King Street West, Suite 2200

P.O. Box 38, Toronto, ON M5H 1J9

Phone: +1 416 342 5560

Fax: +1 416 348 0303

lundinmining.com

NEWS RELEASE

Lundin Mining Provides Update on Chapada Operations

Toronto, September 2 9, 2020 (TSX: LUN; Nasdaq Stockholm: LUMI) Lundin Mining Corporation (“Lundin

Mining” or the “Company”) provides an initial update on the anticipated timeline to resume processing at the

Chapada mine in Brazil. Activities are underway to resume partial processing within one week, with a return to

full capacity currently expected to be achieved within 60 days.

The four mill motors that experienced damage have been removed and are currently being transported to repair

facilities within Brazil. The motors are expected to arrive at the facilities later this week, with confirmation of the

extent of repair required, cost and expectation of timing to be confirmed early next week. Repair costs are not

expected to be material.

The onsite spare motor has been installed on the SAG mill. The second spare motor is nearing completion of its

rehabilitation and, pending final testing, is anticipated to arrive at the mine early next week. The Company is

anticipating and making preparations to resume processing using these two motors on the SAG mill . It is

expected that the rate of production would be approximately 30% of normal production capacity based on past

experience operating this SAG mill circuit without the ball mill.

The Company has also adjusted other activities in response to the interruption to normal pro cessing. M ill

maintenance originally planned for October of this year is being brought forward. Planning is underway to

undertake crusher and conveyor maintenance. Mining activities have been refocused on building run of mine ore

stockpile at the crushers, as well as waste removal and development activities.

The Company will provide additional information and updates on the operation’s 2020 guidance as appropriate.

About Lundin Mining

Lundin Mining is a diversified Canadian base metals mining company with operations in 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 EU Market

Abuse Regulation. The information was submitted for publication, through the agency of the contact persons set

out below on September 29, 2020 at 20:00 Eastern Time.

For further information, please contact:

Mark Turner, Director, Business Valuations and Investor Relations: +1 416 342 5565

Brandon Throop, Manager, Investor Relations: +1 416 342 5583

Robert Eriksson, Investor Relations Sweden: +46 8 440 54 50

Cautionary Statement in 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 forwar d-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 p roduction 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

Feasibility Study, or Mineral Resource and Mineral Reserve estimations, life of mine estimates, and 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 Managemen t System; the Company’s ability

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

Company’s integration of acquisitions and any anticipated benefits thereof. Words such as “believe”, “expect”, “anticipate”, “contemplate”, “target”, “plan”, “goal”,

“aim”, “intend”, “continue”, “budget”, “estimate”, “may”, “will”, “can”, “could”, “should”, “schedule” and similar expression s identify forward-looking statements.

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

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

metals; anticipated costs; ability to achieve goals; the prompt and effective integration of acquisitions; that the political environment in w hich the Company operates

will continue to support the development and operation of mining projects; and assumptions related to the factors set forth below. While these factors and

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

and expected developments, these statements ar e inherently subject to significant business, economic and competitive uncertainties and contingencies. Known and

unknown factors could cause actual results to differ materially from those projected in the forward -looking statements and undue reliance shou ld not be placed on

such statements and information. Such factors include, but are not limited to: volatility and fluctuations in metal and commo dity prices; global financial conditions

and inflation; risks inherent in mining including but not limited to r isks to the environment, industrial accidents, catastrophic equipment failures, unusual or

unexpected geological formations or unstable ground conditions, and natural phenomena such as earthquakes, flooding or unusua lly severe weather; uninsurable

risks; changes in the Company’s share price, and volatility in the equity markets in general; the threat associated with outbreaks of viruses and infectious diseases,

including the novel COVID -19 virus; risks related to negative publicity with respect to the Compa ny or the mining industry in general; reliance on a single asset;

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

employment practices, or human rights violations; actual ore mined and/or metal recoveries varying from Mineral Resource and Mineral Reserve estimates, estimates

of grade, tonnage, dilution, mine plans and metallurgical and other characteristics; 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; ore processin g efficiency; risks inherent in and/or

associated with operating in foreign countries an d emerging markets; security at the Company’s operations; changing taxation regimes; health and safety risks;

exploration, development or mining results not being consistent with the Company’s expectations; unavailable or inaccessible infrastructure and ri sks related to

ageing infrastructure; counterparty and credit risks and customer concentration; risks related to the environmental regulatio n and environmental impact of the

Company’s operations and products and management thereof; exchange rate fluctuatio ns; reliance on third parties and consultants in foreign jurisdictions;

community and stakeholder opposition; civil disruption; the potential for and effects of labour disputes or other unanticipated difficulties with or shortages of labour

or interruptions in production; uncertain political and economic environments; litigation; regulatory investigations, enforcement, sanctions and/or related or other

litigation; risks associated with the structural stability of waste rock dumps or tailings storage facilit ies; changes in laws, regulations or policies including but not

limited to those related to mining regimes, permitting and approvals, environmental and tailings management, labour, trade re lations, and transportation; climate

change; compliance with enviro nmental, health and safety laws; enforcing legal rights in foreign jurisdictions; information technology and cybersecurity ri sks;

estimates of future production and operations; estimates of operating, cash and all -in sustaining cost estimates; delays or th e inability to obtain, retain or comply

with permits; compliance with foreign laws; risks related to mine closure activities and closed and historical sites; challenges or defects in title; the price and availability

of key operating supplies or services; historical environmental liabilities and ongoing reclamation obligations; indebtedness; funding requirements and availability of

financing; liquidity risks and limited financial resources; risks relating to attracting and retaining of highly skilled empl oyees; risks associated with acquisitions and

related integration efforts, including the ability to achieve anticipated benefits, unanticipated difficulties or expenditure s relating to integration and diversion of

management time on integration; the estimati on of asset carrying values; internal controls; competition; dilution; existence of significant shareholders; conflicts of

interest; activist shareholders and proxy solicitation matters; risks relating to dividends; risks associated with business a rrangements and partners over which the

Company does not have full control; and other risks and uncertainties, including but not limited to those described in the “R isks and Uncertainties” section of the

Annual Information Form and the “Managing Risks” section of the Company’s MD&A for the year ended December 31, 2019, which are available on SEDAR at

www.sedar.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 f orward-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 factors and assumptions which may have been used. Should one or more of these risks and uncertainties mater ialize, or should underlying

assumptions prove incorrect, actual results may 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.