The Company has filed an updated mineral reserve estimate and NI 43-101 Technical Report entitled “Technical Report on the Mineral Reserve Update at the Gibraltar Mine” dated March 30, 2022.
Gibraltar’s updated proven and probable sulphide reserves as of December 31, 2021 are as follows:
Gibraltar Mine Sulphide Mineral Reserves as of December 31, 2021 at 0.15% Copper Cut-off | ||||
Category | Tons (millions) |
Cu Grade (%) |
Mo Grade (%) |
Cu Eq. (%) |
Proven | 509 | 0.25 | 0.008 | 0.27 |
Probable | 191 | 0.23 | 0.008 | 0.24 |
Ore Stockpiles | 6 | 0.18 | 0.007 | 0.20 |
Total Proven and Probable | 706 | 0.25 | 0.008 | 0.26 |
Oxide reserves are in addition to sulphide reserves. Gibraltar’s updated proven and probable oxide reserves as of December 31, 2021 are as follows:
Gibraltar Mine Oxide Mineral Reserves as of December 31, 2021 at 0.15% Copper Cut-off | ||
Category | Tons | ASCu (%) |
Proven | 1 | 0.15 |
Probable | 16 | 0.15 |
Ore Stockpiles | 0 | 0.15 |
Total Proven and Probable | 17 | 0.15 |
Mineral resources are inclusive of mineral reserves. Gibraltar’s updated mineral resources as of December 31, 2021 are as follows:
Gibraltar Mine Mineral Resources as of December 31, 2021 at 0.15% Copper Cut-off | ||||
Category | Tons (millions) |
Cu Grade (%) |
Mo Grade (%) |
Cu Eq. (%) |
Measured | 845 | 0.25 | 0.007 | 0.27 |
Indicated | 370 | 0.23 | 0.007 | 0.25 |
Total Measure and Indicated | 1,215 | 0.24 | 0.007 | 0.26 |
Inferred | 78 | 0.22 | 0.004 | 0.23 |
This technical content of the webiste has been reviewed and approved by Richard Weymark, P.Eng., MBA, Vice President, Engineering of Taseko. Mr. Weymark is a Qualified Person under the provisions of National Instrument 43-101 published by the Canadian Securities Administrators.
The resource and reserve estimation was completed by Taseko and Gibraltar Mine staff and contributing consultants under the supervision of Richard Weymark, P. Eng., MBA. Vice President, Engineering of Taseko and a Qualified Person under National Instrument 43-101.
Additional information regarding data verification procedures, known legal, political, environmental or other risks can be found in the Technical Report dated March 30, 2022, titled ‘Technical Report on the Mineral Reserve Update at the Gibraltar Mine’ which is available below.