Mineral Reserves - Proven and Probable

PropertyClassificationTonnes
(000)
Ag
(g/t)
Au
(g/t)
Pb
(%)
Zn
(%)
Contained Metal
Ag
(Moz)
Au
(koz)
MinesCaylloma, PeruProven149850.262.093.230.41
Probable2,477770.182.123.716.114
Proven + Probable2,626770.182.113.696.515
San Jose, MexicoProven3932371.97N/AN/A3.025
Probable4,7792351.51N/AN/A36.0232
Proven + Probable5,1722351.55N/AN/A39.0257
TotalProven + Probable7,7981821.09N/AN/A45.6272
ProjectsLindero, ArgentinaProven25,352N/A0.76N/AN/A0.0618
Probable58,875N/A0.58N/AN/A0.01,096
Proven + Probable84,226N/A0.63N/AN/A0.01,714
TotalProven + Probable45.61,987
 

Mineral Resources - Measured and Indicated

PropertyClassificationTonnes
(000)
Ag
(g/t)
Au
(g/t)
Pb
(%)
Zn
(%)
Contained Metal
Ag
(Moz)
Au
(koz)
MinesCaylloma, PeruMeasured524730.321.162.231.25
Indicated1,633770.291.232.254.115
Measured + Indicated2,157760.301.222.245.321
San Jose, MexicoMeasured49770.56N/AN/A0.11
Indicated272840.59N/AN/A0.75
Measured + Indicated321830.59N/AN/A0.96
TotalMeasured + Indicated2,478770.34N/AN/A6.127
ProjectsLindero, ArgentinaMeasured2,092N/A0.55N/AN/A0.037
Indicated16,774N/A0.49N/AN/A0.0265
Measured + Indicated18,866N/A0.50N/AN/A0.0302
TotalMeasured + Indicated6.1329
 

Mineral Resources - Inferred

PropertyClassificationTonnes
(000)
Ag
(g/t)
Au
(g/t)
Pb
(%)
Zn
(%)
Contained Metal
Ag
(Moz)
Au
(koz)
MinesCaylloma, PeruInferred5,3451020.322.403.8317.656
San Jose, MexicoInferred2,4151961.44N/AN/A15.2112
TotalInferred7,7601320.67N/AN/A32.8168
ProjectsLindero, ArgentinaInferred8,600N/A0.38N/AN/A0.0106
TotalInferred32.8274

Notes:

  1. Mineral Reserves and Mineral Resources are as defined by the 2014 CIM Definition Standards for Mineral Resources and Mineral Reserves
  2. Mineral Resources are exclusive of Mineral Reserves
  3. Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability
  4. Factors that could materially affect the reported Mineral Resources or Mineral Reserves include; changes in metal price and exchange rate assumptions; changes in local interpretations of mineralization; changes to assumed metallurgical recoveries, mining dilution and recovery; and assumptions as to the continued ability to access the site, retain mineral and surface rights titles, maintain environmental and other regulatory permits, and maintain the social license to operate
  5. Mineral Resources and Mineral Reserves are estimated as of June 30, 2018 for the San Jose Mine and as of August 31, 2018 for the Caylloma Mine and reported as of December 31, 2018 taking into account production-related depletion for the period through December 31, 2018. Mineral Resources and Mineral Reserves for Lindero are reported as of March 31, 2019
  6. Mineral Reserves for the San Jose Mine are estimated using an NSR break-even cut-off grade of US$65.90/t, equivalent to 131 g/t Ag Eq based on assumed metal prices of US$18.25/oz Ag and US$1,320/oz Au; estimated metallurgical recovery rates of 92 % for Ag and 91 % for Au and mining costs of US$31.48/t; processing costs of US$16.55/t; and other costs including distribution, management, community support and general service costs of US$17.91/t based on actual operating costs. Mining recovery is estimated to average 89% and mining dilution 12%. Mineral Resources are estimated at a 100 g/t Ag Eq cut-off grade using the same metal prices and metallurgical recoveries as for Mineral Reserves and a mine to mill operating cost of US$52.50/t. Proven and Probable Mineral Reserves include 3.20 Mt containing 26.9 Moz of silver and 164 koz of gold reported at a 134 g/t Ag Eq cut-off grade, in addition to Inferred Resources totaling 1.32 Mt containing 7.1 Moz of silver and 49 koz of gold reported at a 100 g/t Ag Eq cut-off grade, located in the Taviche Oeste concession and subject to a 2.5 % royalty
  7. Mineral Reserves for the Caylloma Mine are reported above NSR breakeven cut-off values based on the proposed mining method for extraction including; mechanized (breasting) at US$ 82.90/t; mechanized (enhanced) at US$ 70.30/t; semi-mechanized at US$ 93.10/t; and conventional at US$ 173.70/t using assumed metal prices of US$18.25/oz Ag, US$1,320/oz Au, US$2,270/t Pb and US$2,750/t Zn; metallurgical recovery rates of 84 % for Ag, 17 % for Au, 91 % for Pb and 90 % for Zn with the exception of high zinc oxide areas that use metallurgical recovery rates of 57 % for Ag, 17 % for Au, 57 % for Pb and 35 % for Zn; and the Ramal Piso Carolina vein that uses a metallurgical recovery rate of 75 % for Au. Mining, processing and administrative costs used to determine NSR cut-off values were estimated based on first half of 2018 actual operating costs. Mining recovery is estimated to average 92 % with mining dilution ranging from 10 % to 40 % depending on the mining methodology. Mineral Resources are reported based on estimated NSR values using the same metal prices and metallurgical recovery rates as detailed for Mineral Reserves; and an NSR cut-off grade based on mine to mill operational costs of US$50/t for veins classified as wide (Animas, Animas NE, Nancy, San Cristobal) and US$135/t for veins classified as narrow (all other veins)
  8. Mineral Reserves for Lindero are reported based on open pit mining within designed pit shells based on variable gold cut-off grades and gold recoveries by metallurgical type. Met type 1 cut-off 0.27 g/t Au, recovery 75.4 %; Met type 2 cut-off 0.26 g/t Au, recovery 78.2 %; Met type 3 cut-off 0.26 g/t Au, recovery 78.5 %; and Met type 4 cut-off 0.30 g/t Au, recovery 68.5 %. The cut-off grades and pit designs are considered appropriate for long term gold prices of US$1,320/oz. Lindero Mineral Resources are reported within the same conceptual pit shell above a 0.2 g/t Au cut-off grade using a long-term gold price of US$1,320/oz, mining costs at US$1.28 per tonne of material, with total processing and process G&A costs of US$8.29 per tonne of ore and an average process recovery of 75 %. The refinery costs net of pay factor were estimated to be US$6.90 per ounce gold. Slope angles are based on 3 sectors (39°, 42°, and 47°) consistent with geotechnical consultant recommendations
  9. Eric Chapman, P. Geo. (APEGBC #36328) is the Qualified Person for resources and Amri Sinuhaji (APEGBC #48305) is the Qualified Person for reserves, both being employees of Fortuna Silver Mines Inc.
  10. Totals may not add due to rounding procedures
  11. N/A = Not Applicable
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