November 29, 2021, Vancouver, BC – Taseko Mines Limited (TSX: TKO; NYSE MKT: TGB; LSE: TKO) (“Taseko” or the “Company”) is pleased to announce that its unionized workforce at the Gibraltar Mine has ratified a new, long-term labour agreement. The new agreement will be in place until May 31, 2024.

Stuart McDonald, President and CEO, commented, “We would like to thank all parties involved for their hard work and commitment to the collective bargaining process. We believe the agreement reached this month will set the stage for successful operations at Gibraltar for years to come, with resulting benefits for all Taseko stakeholders, including our employees and the people and communities of the Cariboo region.”

Mr. McDonald continued, “Recent flooding in southern British Columbia has not had any impact on production at the Gibraltar Mine, but damage to rail and highway infrastructure has prevented transportation of copper concentrate to the Port of Vancouver over the last two weeks. Rail service is now resuming and is expected to gradually return to normal, but the recent disruptions will impact fourth quarter sales volumes which could be significantly lower than copper production for the period. Any excess concentrate inventory at year-end will be sold in the first quarter of 2022.”

For further information on Taseko, please visit the Taseko website at www.tasekomines.com or contact:

Brian Bergot, Vice President, Investor Relations – 778-373-4533 or toll free 1-877-441-4533

Stuart McDonald

President and CEO