Yellowhead - Reserves & Resources

Mineral Reserve

Category (at a 0.17% cut-off)

Tonnes

(millions)

Cu (%)

Au (g/tonne)

Ag (g/tonne)

Cu Eq.(%)*

Proven

458

0.29

0.031

1.3

0.31

Probable

359

0.26

0.028

1.2

0.28

Total

817

0.28

0.030

1.3

0.29

Note: Proven and Probable reserves are derived from Measured and Indicated resources, respectively, that are contained within the final ultimate design and are above the stated copper cut-off grade as of December 31, 2019. Mineral Reserves have been estimated in accordance with NI 43-101 and 2014 CIM Definition Standards. Mineral reserves were estimated using long term metal prices of US$2.40/lb Cu, US$1,000/oz Au and US$13.50/oz Ag at a foreign exchange rate of US$0.80 per C$1.00 and a 0.17% cut off grade. Totals may not sum due to rounding.

Mineral Resources

Category (at a 0.15% cut-off)

Tonnes (millions)

Cu (%)

Au (g/tonne)

Ag (g/tonne)

Cu Eq.(%)*

Measured

561

0.27

0.029

1.2

0.29

Indicated

730

0.24

0.027

1.2

0.26

M&I

1,292

0.25

0.028

1.2

0.27

Inferred

109

0.24

0.026

1.2

0.26

Note: Mineral Resource estimate with an effective date of December 31, 2019. Mineral Resources have been estimated in accordance with NI 43-101 and 2014 CIM Definition Standards. Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability. Mineral resources were estimated using long term metal prices of US$3.25/lb Cu, US$1,300/oz Au and US$17.00/oz Ag at a foreign exchange rate of US$0.80 per C$1.00 and a 0.15% cut off grade. Mineral Resources are inclusive of Mineral Reserves. Totals may not sum due to rounding.


*Copper Equivalent is based on 90% copper recovery, US$3.10/lb copper price, 56% gold recovery, US$1350/oz gold, 59% silver recovery, and US$18.00/oz silver price.

The resource and reserve estimation was completed by Taseko staff and contributing consultants under the supervision of Richard Weymark, P. Eng., MBA. Chief Engineer, Taseko and a Qualified Person under National Instrument 43-101.

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