Global Resource

NI 43-101 Global Resource Estimate

Rockcliff Metals Corporation - Global Resources - February 1, 2022
Category Deposit Tonnes ('000t) Cu (%) Zn (%) Au (gpt) Ag (gpt) CuEq (%) CuEq (Mlbs)
Measured and Indicated Tower                  1,711             3.28          1.04          0.70       16.50                4.22                 159
Rail                  2,053             1.87          0.59          0.60          6.10                2.30                 104
Bur                  3,017             1.69          6.13          0.02          4.48                3.84                 255
Talbot (49%)                  1,075             2.33          1.79          2.06       36.00                4.40                 104
Total Measured + Indicated                  7,856             2.17          2.98          0.60       11.83                3.60                 623
Inferred Tower                      499             1.74          1.16          0.20       8.40                2.13                   23
Rail                      1,079             2.14          0.73          0.90          7.60                2.73                   65
Bur                  2,342             1.03          8.65          0.00          0.91                4.04                 209
Talbot (49%)                  1,198             1.13          1.74          1.87       25.80                2.98                 79
Total Inferred                  5,118             1.49          4.00          0.54       7.70                3.14                 376

• The Tower and Rail Deposits resource estimates complete by A-Z Mining Professionals Limited was press released on February 1, 2022 and included into a PEA study. CIM definitions were followed. $80 copper cut-off was used with US$3.52 copper, US$1817 gold, US$1.18 zinc and US$23.75 silver (based on an 18 month moving metal price average to October 31, 2021). Copper Equivalent grades were applied using metal recoveries of 97.2% copper, 74.24% zinc, 63% gold and 63% silver. Mineral Resources are not Mineral Reserves and do not have demonstrated economic value.
• The Talbot resource report completed by P&E with an effective on February 28, 2020 and press released February 27, 2020. CIM definitions were followed, 1.5% copper cut-off was used with US$3.00 copper, US$1,350 gold, US$1.10 zinc and US$16.50 silver(based on 24 month moving average to January 31, 2020). Metal recoveries used for Copper Equivalent grades were 95%, gold at 80%, zinc at 80% and silver at 80%. Mineral Resources are not Mineral Reserves and do not have demonstrated economic value.
• The Bur resource report completed by Stantec with an effective date of October 26, 2021 was press released on November 22, 2021. CIM definitions were followed. 2.3% copper cut-off was used with US$3.26 copper, US$1,744 gold, US$ 1.13 zinc and US$22.05 silver(based on 24 month moving average to October 2021). Metal recoveries used for Copper Equivalent grades were 80%, gold at 40%, zinc at 80% and silver at 40%. Mineral Resources are not Mineral Reserves and do not have demonstrated economic value.