Starting May 27, 2024, the Toronto Stock Exchange ("TSX") will shorten the settlement cycle to trade date plus one business day ("T+1"). As a result, the first day of trading without dividend ("ex-dividend date") will be May 31, 2024 for shares traded on TSX. For shares traded on Nasdaq Stockholm, the ex-dividend date will be May 30, 2024.

Dividends on shares traded on TSX will be paid in CAD on June 19, 2024. Dividends on shares traded on Nasdaq Stockholm will be paid in Swedish kronor in accordance with Euroclear principles on June 25, 2024. To execute the payment of the dividend, a temporary administrative cross-border transfer closure will be applied by Euroclear from May 29, 2024, up to and including May 31, 2024, during which period shares of the Company cannot be transferred between TSX and Nasdaq Stockholm.

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 1, 2024 at 14:25 Pacific Standard Time. 

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 timing of payment and amount of any dividend; expectations regarding settlement; eligibility of any dividend for tax purposes; and declaration, timing, amount, and payment of future dividends. 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 expectations and beliefs of management, including assumed and future price of copper, nickel, zinc, gold and other metals; anticipated costs; ability to achieve goals; 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 and perception of current conditions and expected developments, these statements are 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 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 conditions, and natural phenomena such as earthquakes, flooding or unusually severe weather; uninsurable risks; volatility and fluctuations in metal and commodity demand and prices; 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; 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, estimates of grade, tonnage, dilution, mine plans and metallurgical and other characteristics; ore processing efficiency; financial projections, including estimates of future expenditures and cash costs, and estimates of future production may not be reliable; exchange rate fluctuations; compliance with foreign laws; 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 31, 2023 and the period ending March 31, 2024, which are available on SEDAR+ at www.sedarplus.ca 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 factors 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 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.

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