• Mineral Reserves follow CIM Definition Standards for Mineral Resources and Mineral Reserves (2014).
• Mineral Reserves are contained within Florence Copper’s Mineral Resources.
• Mineral Reserves are assumed to be extracted using ISCR extraction methods using the following assumptions: $3.05 Cu price, $31,600/acre for core hole abandonment, $240,400/acre for cultural mitigations in identified Cultural Sites, $149,600 + $263/foot well drilling costs, $160/ton acid cost, $45.30/ton acid applied for well field operating costs, 1.2% surface losses, $0.10/lb Cu for electrowinning cost, $0.12/lb Cu G&A cost, $0.69/ton reclamation cost, $0.02/lb Cu shipping cost, 7% NSR royalties on ALSD land, 3% NSR royalties on freehold land, and 2.5% royalties on net profit.
• Mineral Reserves are reported without a cut-off grade and on a fully diluted basis to reflect the nature of the ISCR extraction method proposed.
• Tonnage factors of 13.5 ft3/ton and 13.13 ft3/ton have been applied corresponding to 8% porosity in the upper oxide zone and 5% porosity in the lower oxide and transition zones.
• Numbers may not add due to rounding.

• Mineral Resources follow CIM Definition Standards for Mineral Resources and Mineral Reserves (2014).
• Mineral Resources are reported inclusive of Mineral Reserves.
• Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.
• Mineral Resources are confined to the Oxide and Transition zones inside a “reasonable prospects of eventual economic extraction” boundary assuming ISCR extraction methods using the following assumptions: $3.50 Cu price, $31,600/acre for core hole abandonment, $240,400/acre for cultural mitigations in identified Cultural Sites, $149,600 + $263/foot well drilling costs, $160/ton acid cost, $45.30/ton acid applied for well field operating costs, 1.2% surface losses, $0.10/lb Cu for electrowinning cost, $0.12/lb Cu G&A cost, $0.69/ton reclamation cost, $0.02/lb Cu shipping cost, 7% NSR royalties on ALSD land, 3% NSR royalties on freehold land, and 2.5% royalties on net profit.
• Mineral Resources are reported without a cut-off grade to reflect the nature of the ISCR extraction method proposed.
• Tonnage factors of 13.5 ft3/ton and 13.13 ft3/ton have been applied corresponding to 8% porosity in the upper oxide zone and 5% porosity in the lower oxide and transition zones.
• Numbers may not add due to rounding

The report has been prepared for Taseko Mines Limited, a producing issuer, under the supervision of Richard Tremblay, P.Eng., MBA, Richard Weymark, P.Eng., MBA, and Robert Rotzinger, P.Eng. Mr. Tremblay is employed by the Company as Sr. Vice President Operations, Mr. Weymark is Vice President Engineering and Robert Rotzinger is Vice President Capital Projects. All three are “Qualified Persons” as defined in National Instrument 43–101 Standards of Disclosure for Mineral Projects (“NI 43–101”).

Mr. Tremblay, Mr. Weymark and Mr. Rotzinger have reviewed and approved the technical content of this webpage.

Additional information regarding data verification, exploration information, known legal, political, environmental or other risks can be found in the Technical Report dated March 30, 2023, titled ‘NI 43-101 Technical Report – Florence Copper Project, Pinal County, Arizona’ which is available on SEDAR.