Mineral Resources
The Mineral Resources estimate, inclusive of the Mineral Reserves inventory, is shown in the following table.
Mineral Resource - as at December 31, 2020 and reported using a $55 NSR value cut-off
| Classification |
Tonnes (Mt) |
Cu (%) |
Zn (%) |
Au (g/t) |
Ag (g/t) |
| Total Measured |
7.5 |
2.52 |
1.17 |
0.34 |
10.0 |
| Total Indicated |
2.7 |
2.26 |
1.67 |
0.58 |
14.19 |
| Total Meas. plus Ind. |
10.2 |
2.45 |
1.30 |
0.41 |
11.10 |
| Total Inferred |
1.7 |
2.05 |
3.25 |
- |
- |
This estimate has been produced by the CBI site geological team under the supervision of, and verified by, Joseph Boaro of the Company. Joseph Boaro is
a qualified person, a member of the Professional Engineers Ontario, and holds the following valid qualifications: P.Eng.
Mineral Reserves
The mineral reserve estimate for Çayeli is presented below and reflects the position as at December 31, 2020. The mineral reserve estimate used an economic net smelter return (NSR) cut-off based on a copper price of $2.75/lb, $1.31/lb for Zinc, $1,300/oz for gold, and $16/oz for silver. There is no stockpiled Mineral Reserve inventory. The estimate is derived from conventional underground mine design and life of mine production scheduling.
At currently projected processing throughput rates, the remaining LoM is expected to be 3 years from December 31, 2020. The remaining Mineral Resources, exclusive of Mineral Reserves, other than perhaps 5% of the total, are not currently upgradeable to Mineral Reserves due to their discontinuous distribution throughout the orebody.
Mineral Reserve - as at December 31, 2020 and reported using a $65 NSR value cut-off
| Classification |
Primary Sulphide Ore |
|
Ore (Mt) |
Cu (%) |
Zn (%) |
Au (g/t) |
Ag (g/t) |
| Total Proven |
1.5 |
2.84 |
1.82 |
0.37 |
17.23 |
| Total Probable |
0.6 |
3.18 |
3.18 |
0.42 |
29.14 |
| Total Mineral Reserves |
2.1 |
2.93 |
2.18 |
0.38 |
20.40 |
This Mineral Reserve estimate as at December 31, 2020 has been produced by the Çayeli site mining team under the supervision of, and verified by, Joseph
Boaro of the Company. Joseph Boaro is a qualified person, a member of the Professional Engineers Ontario, and holds the following valid qualifications:
P.Eng