October 31, 2023, Vancouver, BC – Taseko Mines Limited (TSX: TKO; NYSE American: TGB; LSE: TKO) (“Taseko” or the "Company") is pleased to announce that the US Environmental Protection Agency (“EPA”) has confirmed that no appeals have been received and Florence Copper’s final Underground Injection Control (“UIC”) permit is now effective.

Stuart McDonald, President and CEO of Taseko, commented, “Successful completion of the UIC permitting process is a result of Taseko’s long-term development approach, and the quality and environmental integrity of the project. Taseko is now in a unique position, with one of the very few fully permitted mining projects in North America. With the final permit in hand, we have a clear line of vision to commercial production and are that much closer to realizing the full value of Florence Copper.”

About Florence Copper

Florence Copper, located in Arizona, USA, is the next copper mine development for Taseko. The Company anticipates that Florence Copper will be one of the greenest sources of copper for U.S. domestic consumption, with carbon emissions, water and energy consumption all dramatically lower than a conventional copper mine. Florence Copper is projected to be a low-cost copper producer, expected to manufacture 85 million pounds per year of LME Grade A copper cathode in the United States.

For further information on Taseko, see the Company’s 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