Updated Share Capital and Voting Rights for Lundin Mining

Corporate Office UK Office

150 King Street West, Suite 1500 Ground Floor Hayworthe House, P.O. Box 38 2 Market Place, Haywards Heath Toronto, ONM5H 1J9 West Sussex, RH16 1DB Phone: +1 416 342 5560 United Kingdom Fax: +1 416 348 0303 Phone: +44 (0) 1444 411 900 Fax: +44 (0) 1444 456 901

NEWS RELEASE

UPDATED SHARE CAPITAL AND VOTING RIGHTS FOR LUNDIN MINING

Toronto, August 31, 2015 (TSX: LUN; OMX: LUMI) Lundin Mining Corporation (“Lundin” or the “Company”) reports the following, in accordance with the Swedish Financial Instruments Trading Act:

As a result of the exercise of employee stock options and/or release of vested share units during the month of August, the number of issued and outstanding shares of the Company has increased to 719,512,357 common shares with voting rights as at August 31, 2015.

About Lundin Mining

Lundin Mining is a diversified base metals mining company with operations and projects in Chile, the USA, Portugal, Sweden, and Spain producing copper, zinc, lead and nickel. In addition, Lundin Mining holds a 24% equity stake in the world-class Tenke Fungurume copper/cobalt mine in the Democratic Republic of Congo and in the Freeport Cobalt Oy business, which includes a cobalt refinery located in Kokkola, Finland.

On Behalf of the Board,

Paul Conibear, CEO

The information in this release is subject to the disclosure requirements of Lundin Mining under the Swedish Securities Market Act and/or the Swedish Financial Instruments Trading Act. This information was publicly communicated on August 31, 2015 at 6:00 p.m. Eastern Time.

For further information, please contact:

John Miniotis Senior Manager, Corporate Development & Investor Relations +1-416-342-5565

Robert Eriksson Investor Relations, Sweden +46 8 545 015 50

Sonia Tercas Senior Associate, Investor Relations +1-416-342-5583