Taseko Proposes Name Change at Upcoming Annual General Meeting

Press Release

May 25, 2026, Vancouver, BC – Taseko Mines Limited (TSX: TKO; NYSE American: TGB; LSE: TKO) (“Taseko” or the “Company”) announces that it has filed its notice of meeting, management information circular (the “Circular”) and related documents (collectively, the “Meeting Materials”) with securities regulators in connection with its upcoming Annual General Meeting (the “Meeting”) of holders of common shares of the Company (“Shareholders”).

The Meeting Materials, which have been mailed to shareholders, can also be accessed online on Taseko’s website (tasekomines.com/investors/agm) and under the company’s profile on SEDAR+ (sedarplus.ca).

Proposed Name Change

At the upcoming Meeting, the Company is proposing a name change to reflect its growing business and expanded asset base in North America. Management believes that it is the right time for a new name that reflects the Company today and where it is headed. Subject to shareholder approval at this year’s AGM, Taseko Mines Limited will become Trekor Metals Limited.

Stuart McDonald, President and CEO of Taseko, commented, “Over the last two decades, Taseko has been on a journey – steadily growing our business and unlocking value in our high-quality portfolio of development assets. We’ve seized opportunities that others have overlooked and built value for shareholders and the communities where we operate. Our journey will continue as Trekor, a name that embodies our values and reflects our ambition to continue to grow North America’s copper sector.”

Meeting Details

The Meeting will be held in person at the Terminal City Club (837 W Hastings Street, Vancouver, British Columbia, V6C 1B6) on June 24, 2026 at 2:00 p.m. (Pacific Time). At the Meeting, Shareholders will be asked to vote on the follow resolutions:

• The setting of the number of directors at nine;
• The election of directors;
• The appointment of PricewaterhouseCoopers LLP, Chartered Professional Accountants, as auditors of the Company, and authorization of the Board to fix their remuneration;
• The approval of a proposed name change of the Company to “Trekor Metals Limited”; and
• Consideration of the advisory say-on-pay vote.

The Taseko Board unanimously recommends that shareholders vote FOR all proposed resolutions.

Vote Today

The proxy voting deadline is 2:00 p.m. (Pacific Time) on June 22, 2026. Shareholders are encouraged to vote well in advance of the proxy voting deadline to ensure your vote is submitted in a timely manner. Voting is easy. Shareholders may vote online, by telephone or any other methods provided in the form or proxy or voting instruction which have been included as part of the mailing.

Shareholders of record as of the close of business on May 5, 2026 are eligible to vote at the Meeting.

Shareholder Questions & Voting Assistance

Shareholders with questions or who require voting assistance may contact Taseko’s proxy solicitation agent:

Laurel Hill Advisory Group
North America Toll Free: 1-877-452-7184
Outside North America: 1-416-304-0211
Text Message: Text “INFO” to 416-304-0211 or 1-877-452-7184
Email: assistance@laurelhill.com

For further information on Taseko, see the Company’s website at tasekomines.com or contact:

• Investor enquiries Brian Bergot, Vice President, Investor Relations – 778-373-4554

Stuart McDonald
President and CEO

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