Mineral Reserves and Resources

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Mineral Reserves and Resources

Total Proven & Probable Mineral Reserves

Total Proven & Probable Mineral Reserves as at December 31, 2018(1,2)



Tonnage Grade Metal
Mine Category Quantity Mt Zn % Pb % Ag g/t Zn M lbs Pb M lbs Ag K oz
Perkoa Mine Proven & Probable 3.09 12.69 - - 864 - -
Rosh Pinah Mine Proven & Probable 8.49 6.73 1.52 21.90 1,260 285 5,978
Caribou Mine Proven & Probable 3.29 6.37 2.43 73.20 463 176 7,753
Santander Mine Proven & Probable 2.34 4.67 0.64 31.86 240 33 2,393
Total Proven & Probable 17.2 7.45 1.59 35.52 2,827 494 16,124

(1) The technical report entitled “Technical Report on the Caribou Mine, Bathurst, New Brunswick, Canada” dated May 31, 2018, is the current technical report for the Caribou property.
(2) The M lbs (million pounds) and K oz (thousand ounces) contained metals is the total Proven + Probable Mineral Reserve estimation of all the mines on a 100% basis. Trevali’s proportionate ownership interest pursuant to the applicable joint venture/option agreements is: Perkoa (90%); and Rosh Pinah (90%); Santander (100%); Caribou (100%).”

Total Measured & Indicated Mineral Resources

Total Measured & Indicated Mineral Resources as at December 31, 2018(1,2)



Tonnage Grade Metal
Project Category Quantity Mt Zn % Pb % Ag g/t Zn M lbs Pb M lbs Ag K oz
Perkoa Mine Measured & Indicated 4.88 13.26 - - 1,427 - -
Rosh Pinah Mine Measured & Indicated 11.32 7.82 1.76 26.13 1,950 439 9,509
Caribou Mine Measured & Indicated 9.58 6.68 2.55 75.60 1,411 539 23,285
Santander Mine Measured & Indicated 3.08 5.34 0.74 32.79 362 50 3,244
Santander Pipe Project Indicated 2.77 6.81 0.09 13.39 416 5 1,193
Restigouche Project Measured & Indicated 1.08 5.00 3.30 46.30 119 79 1,613
Halfmile Project Measured & Indicated 7.80 6.94 2.35 36.00 1,199 407 8,980
Stratmat Project Indicated 4.70 5.30 2.10 49.00 550 214 7,300
Total Measured & Indicated 45.21 7.45 1.74 38.03 7,435 1,733 55,124

(1) The M lbs (million pounds) and K oz (thousand ounces) contained metals is the total Measured + Indicated Mineral Resource estimation of all mines and projects on a 100% basis. Trevali’s proportionate ownership interest pursuant to the applicable joint venture/option agreements is: Perkoa (90%); and Rosh Pinah (90%); Santander (100%); Caribou (100%).
(2) All Mineral Resources are inclusive of Mineral Reserves. Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.

Total Inferred Mineral Resources

Total Inferred Mineral Resources as of December 31, 2018(1)



Tonnage Grade Metal
Project Category Quantity Mt Zn % Pb % Ag g/t Zn M lbs Pb M lbs Ag K oz
Perkoa Mine Inferred 1.21 10.21 - - 271 - -
Rosh Pinah Mine Inferred 5.56 7.11 1.13 24.93 872 139 4,457
Caribou Mine Inferred 5.12 6.42 2.65 78.52 725 299 12,925
Santander Mine Inferred 1.43 4.60 0.21 22.19 145 7 1,022
Santander Pipe Project Inferred 0.82 5.59 0.02 10.00 101 1 263
Restigouche Project Inferred 0.58 6.10 4.30 67.83 77 55 1,256
Halfmile Project Inferred 6.50 5.62 1.51 23.00 806 216 4,720
Stratmat Project Inferred 2.40 4.80 2.10 39.00 252 110 3,000
Total Inferred 23.61 6.24 1.59 36.54 3,249 825 27,643

(1) The M lbs (million pounds) and K oz (thousand ounces) contained metals is the total Inferred Mineral Resource estimation of all mines and projects on a 100% basis. Trevali’s proportionate ownership interest pursuant to the applicable joint venture/option agreements is: Perkoa (90%); and Rosh Pinah (90%); Santander (100%); Caribou (100%).