Overview
| Stage | Production |
| Mine Type | Underground |
| Commodities |
|
| Processing |
- Flotation
- Leaching plant / circuit
- Cyanide (reagent)
|
| Mine Life | 5.4 years (as of Jan 1, 2019) |
Source:
p. 46
Deposit Type
- Epithermal
- Vein / narrow vein
Summary:
The San Julián project comprises a series of silver-gold veins as well as disseminated ore.
The new San Julian mine in construction displays a silver resource of 200 Moz in two different types of ore bodies: (i) typical low sulphidation epithermal veins and (ii) disseminated sulphides in subvolcanic and volcanic felsic rocks. Exploration strategy involved early recognition of Cienega-style characteristics providing confidence in the geologic model, and persistence when evaluating the non-typical disseminated mineralization.
Processing
- Flotation
- Leaching plant / circuit
- Cyanide (reagent)
Source:
Summary:
Underground mine, flotation plant and a dynamic leaching plant.
The San Julián project includes construction of two plants:
1) a dynamic leaching plant to treat ore from the veins
2) a flotation plant with 6,000 tpd capacity to process ore from the disseminated body.
Recoveries & Grades:
| Commodity | Parameter | 2019 | 2018 | 2017 | 2016 |
|
Zinc
|
Head Grade, %
| 1.36 | 1.35 | | |
|
Zinc
|
Concentrate Grade, %
| ......  | ...... | ...... | |
|
Lead
|
Head Grade, %
| 0.44 | 0.43 | | |
|
Lead
|
Concentrate Grade, %
| ...... | ...... | ...... | |
|
Silver
|
Head Grade, g/t
| | | | 172.5 |
|
Gold
|
Head Grade, g/t
| | | | 2.47 |
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Reserves at May 31, 2019:
| Category | OreType | Tonnage | Commodity | Grade | Contained Metal |
|
Proven & Probable
|
Veins
|
4,346 kt
|
Silver
|
160 g/t
|
22,350 koz
|
|
Proven & Probable
|
Veins
|
4,346 kt
|
Gold
|
1.75 g/t
|
245 koz
|
|
Proven & Probable
|
Disseminated
|
12,073 kt
|
Silver
|
175 g/t
|
67,772 koz
|
|
Proven & Probable
|
Disseminated
|
12,073 kt
|
Gold
|
0.11 g/t
|
42 koz
|
|
Proven & Probable
|
Disseminated
|
12,073 kt
|
Zinc
|
1.3 %
|
157 kt
|
|
Proven & Probable
|
Disseminated
|
12,073 kt
|
Lead
|
0.49 %
|
60 kt
|
|
Measured & Indicated
|
Veins
|
11,606 kt
|
Silver
|
129 g/t
|
48,164 koz
|
|
Measured & Indicated
|
Veins
|
11,606 kt
|
Gold
|
1.63 g/t
|
607 koz
|
|
Measured & Indicated
|
Disseminated
|
17,113 kt
|
Silver
|
174 g/t
|
95,827 koz
|
|
Measured & Indicated
|
Disseminated
|
17,113 kt
|
Gold
|
0.11 g/t
|
61 koz
|
|
Measured & Indicated
|
Disseminated
|
17,113 kt
|
Zinc
|
1.5 %
|
258 kt
|
|
Measured & Indicated
|
Disseminated
|
17,113 kt
|
Lead
|
0.53 %
|
90 kt
|
|
Inferred
|
Veins
|
10,866 kt
|
Silver
|
159 g/t
|
55,501 koz
|
|
Inferred
|
Veins
|
10,866 kt
|
Gold
|
1.28 g/t
|
446 koz
|
|
Inferred
|
Disseminated
|
63 kt
|
Silver
|
36 g/t
|
74 koz
|
|
Inferred
|
Disseminated
|
63 kt
|
Gold
|
0.04 g/t
|
koz
|
|
Inferred
|
Disseminated
|
63 kt
|
Zinc
|
1.85 %
|
1 kt
|
|
Inferred
|
Disseminated
|
63 kt
|
Lead
|
0.08 %
|
kt
|
Financials:
| | Units | 2019 | 2018 | 2017 | 2016 |
|
Capital expenditures
|
M USD
| ...... | 83.1 | 79.1 |
134.1
|
|
Revenue
|
M USD
| ...... | 366.5 | 287.2 |
67.4
|
|
Gross profit
|
M USD
| ...... | 176.5 | 174.7 |
45.8
|
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