Reserves & Resources 2017 As at December 31, 2017

  • Ag
  • Au
  • Cu
  • Sb
2017

Total Company Mineral Reserves

Category Ag
(cont. koz)
Au
(cont. koz)
Sb
(cont. kt)
Proven Reserves 292 38 5.3
Probable Reserves 7,511 735 12.0
Proven and Probable Reserves 7,803 773 17.2

Total Company Mineral Resources
Inclusive of Mineral Reserves

Category Ag
(cont. koz)
Au
(cont. koz)
Sb
(cont. kt)
Cu
(cont. klb)
Measured Resources 421 89 12.1
Indicated Resources 39,871 1,274 23.9 459,000
Measured and Indicated Resources 40,292 1,315 36.0 459,000
Inferred Resources 10,255 419 4.0 13,000

Click here for complete notes to the Company’s Mineral Resource and Reserve estimates.

Cerro Bayo 2017 Year-end

  • Ag
  • Au
2017 Year-end

Cerro Bayo Mineral Reserves

Category Ore
(kt)
Ag Grade
(g/t)
Ag
(cont. koz)
Au Grade
(g/t)
Au
(cont. koz)
Proven Reserves 40 227 292  1.72  2
Probable Reserves 816 286 7,511  2.37  62
Proven and Probable Reserves   856 284 7,803  2.34 64

Cerro Bayo Mineral Resources
Inclusive of Mineral Reserves

Category Resource
(kt)
Ag Grade
(g/t)
Ag
(cont. koz)
Au Grade
(g/t)
Au
(cont. koz)
Measured Resources 47 279 421 2.15  3
Indicated Resources 854 352 9,671 3.07 84
Measured and Indicated Resources 901 348 10,092 3.02 87
Inferred Resources 513 204 3,355 2.52 42

Costerfield 2017 Year-end

  • Au
  • Sb
2017 Year-end

Costerfield Mineral Reserves

Category Ore
(kt)
Sb Grade
(%)
Sb.
(cont. kt)
Au Grade
(g/t)
Au
(cont. koz)
Proven Reserves 152 3.5 5.3 7.3 36
Probable Reserves 470 2.5 12.0 5.7 86
Proven and Probable Reserves 622 2.8 17.2 6.1 122

Costerfield Mineral Resources Inclusive of Mineral Reserves

Category Resource
(kt)
Sb Grade
(%)
Sb
(cont. kt)
Au Grade
(g/t)
Au
(cont. koz)
Measured Resources 290 4.2 12.1 9.2 86
Indicated Resources 971 2.5 23.9 5.7 177
Measured and Indicated Resources 1,261 2.9 36.0 6.5 262
Inferred Resources 379 1.1 4.0 6.6 80

Björkdal 2017 Year-end

  • Au
2017 Year-end

Björkdal Open-pit Mineral Reserves

Category Ore
(kt)
Au Grade
(g/t)
Au
(cont. koz)
Proven Reserves
Probable Reserves 4,537  1.3 189
Proven and Probable Reserves    4,537  1.3 189

Björkdal Underground Mineral Reserves

Category Ore
(kt)
Au Grade
(g/t)
Au
(cont. koz)
Proven Reserves
Probable Reserves 4,321 2.41 334
Proven and Probable Reserves    4,321 2.41 334

Björkdal Norrberget Open Pit Mineral Reserves

Category Ore
(kt)
Au Grade
(g/t)
Au
(cont. koz)
Proven Reserves
Probable Reserves 162 2.8 15
Proven and Probable Reserves    162 2.8 15

Björkdal Stockpile Mineral Reserves

Category Ore
(kt)
Au Grade
(g/t)
Au
(cont. koz)
Proven Reserves
Probable Reserves 2,383 0.64 49
Proven and Probable Reserves    2,383 0.64 49

 

Björkdal Total Mineral Reserves

Category Ore
(kt)
Au Grade
(g/t)
Au
(cont. koz)
Proven Reserves
Probable Reserves 11,403 1.6 587
Proven and Probable Reserves    11,403 1.6 587

 Björkdal Open-pit Mineral Resources Inclusive of Mineral Reserves

Category Resource
(kt)
Au Grade
(g/t)
Au
(cont. koz)
Measured Resources
Indicated Resources 3,589 2.08 240
Measured and Indicated Resources 3,589 2.08 240
Inferred Resources 2,368 1.26 96

Björkdal Underground Mineral Resources Inclusive of Mineral Reserves

Category Resource
(kt)
Au Grade
(g/t)
Au
(cont. koz)
Measured Resources
Indicated Resources 6,782 3.03 660
Measured and Indicated Resources 6,782 3.03 660
Inferred Resources 2,455 2.34 184

Björkdal Norrberget Open Pit Mineral Resources Inclusive of Mineral Reserves

Category Resource
(kt)
Au Grade
(g/t)
Au
(cont. koz)
Measured Resources
Indicated Resources 144 3.29 15
Measured and Indicated Resources 144 3.29 15
Inferred Resources 3 4.03 0.5

Björkdal Stockpile Mineral Resources Inclusive of Mineral Reserves

Category Resource
(kt)
Au Grade
(g/t)
Au
(cont. koz)
Measured Resources
Indicated Resources 2,383 0.64 49
Measured and Indicated Resources 2,383 0.64 49
Inferred Resources

Björkdal Total Mineral Resources Inclusive of Mineral Reserves

Category Resource
(kt)
Au Grade
(g/t)
Au
(cont. koz)
Measured Resources
Indicated Resources 12,898 2.33 965
Measured and Indicated Resources 12,893 2.33 965
Inferred Resources 4,826 1.81 281

Challacollo 2014 Year-end

  • Ag
  • Au
2014 Year-end

Challacollo Mineral Resources

Category Resource
(kt)
Ag Grade
(g/t)
Au Grade
(g/t)
Ag
(cont. koz)
Au
(cont. koz)
Measured Resources
Indicated Resources 4,700 200 0.32 30,200 48
Measured and Indicated Resources 4,700 200 0.32 30,200 48
Inferred Resources 1,600 134 0.31 6,900 16

La Quebrada 2012 Mid-year

  • Ag
  • Cu
2012 Mid-year

La Quebrada Mineral Resources

Category Resource
(t)
Cu Grade
(%)
Cu
(cont. lb)
Ag Grade
(g/t)
Ag
(cont. oz)
Measured Resources
Indicated Resources 34,800,000 0.6% 459,000,000 10 11,200,000
Measured and Indicated Resources 34,800,000 0.6% 459,000,000 10 11,200,000
Inferred Resources 1,000,000 0.6% 13,000,000 11 400,000