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Lundin Mining Announces Annual Meeting Voting Results

Shareholder Meetings

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 Announces Annual Meeting Voting Results

Toronto, May 11, 2023 (TSX: LUN; Nasdaq Stockholm: LUMI) Lundin Mining Corporation (“Lundin Mining” or the “Company”) today announced the voting results from its 2023 Annual Meeting of Shareholders (the “Meeting”).

A total of 600,583,500 common shares were voted at the Meeting, representing 77.82% of the votes attached to all outstanding common shares. Shareholders voted in favour of all items of business considered at the Meeting, as follows:

% For% Against
Director Nominees Donald K. Charter C. Ashley Heppenstall Juliana L. Lam Adam I. Lundin Dale C. Peniuk Maria Olivia Recart Peter T. Rockandel Natasha N.D. Vaz93.79% 87.13% 99.70% 92.44% 92.95% 98.93% 99.32% 98.74% % For6.21% 12.87% 0.30% 7.56% 7.05% 1.07% 0.68% 1.26% % Withhold
Appointment of Auditors PricewaterhouseCoopers LLP96.83%3.17%
% For% Against% Abstain
Advisory Vote on the Company’s Approach to Executive Compensation92.31%7.12%0.56%

Detailed voting results for the Meeting are available on SEDAR at www.sedar.com.

Chair of the Board, Lead Director, and Board Committee Appointments

The Board of Directors (the “Board”) is pleased to announce the reappointment of Mr. Adam Lundin as the Chair of the Board and Mr. Ashley Heppenstall as Lead Director.

The Board is also pleased to announce the composition of the Board Committees:

Corporate Governance and Nominating CommitteeHuman Resources / Compensation Committee
Dale C. Peniuk (Chair) C. Ashley Heppenstall Juliana L. LamDonald K. Charter (Chair) C. Ashley Heppenstall Dale C. Peniuk

Safety and Sustainability Audit Committee Committee

Dale C. Peniuk (Chair) Donald K. Charter (Chair)

C. Ashley Heppenstall Adam I. Lundin

Juliana L. Lam Maria Olivia Recart

Natasha N.D. Vaz

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 was submitted for publication, through the agency of the contact persons set out below on May 11, 2023 at 18:00 Eastern Time.

For further information, please contact:

Mark Turner, Vice President, Business Valuations and Investor Relations: +1 416 342 5565 Irina Kuznetsova, Manager, Investor Relations: +1 416 342 5583 Robert Eriksson, Investor Relations Sweden: +46 8 440 54 50