Overview
| Stage | Production |
| Mine Type | Underground |
| Commodities |
|
| Processing |
- Flotation
- Leaching plant / circuit
- Cyanide (reagent)
|
| Mine Life | 6.3 years (as of Jan 1, 2019) |
Silver production from mines reached a record level of 54.2 moz, due to phase I at San Julián operating at full capacity for the entire year and the start of operations of phase II at the same mine. |
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 Technologies
- Flotation
- Leaching plant / circuit
- Cyanide (reagent)
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 | 2018 | 2017 | 2016 |
|
Zinc
|
Head Grade, %
| 1.35 | | |
|
Zinc
|
Concentrate Grade, %
| ......  | ...... | |
|
Lead
|
Head Grade, %
| ...... | | |
|
Lead
|
Concentrate Grade, %
| ...... | ...... | |
|
Silver
|
Head Grade, g/t
| | | ...... |
|
Gold
|
Head Grade, g/t
| | | ...... |
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Reserves at December 31, 2018:
| Category | OreType | Tonnage | Commodity | Grade | Contained Metal |
|
Proven
|
Disseminated
|
13,568 kt
|
Silver
|
212 g/t
|
92,312 koz
|
|
Proven
|
Veins
|
692 kt
|
Silver
|
139 g/t
|
3,099 koz
|
|
Proven
|
Veins
|
692 kt
|
Gold
|
1.82 g/t
|
40 koz
|
|
Proven
|
Disseminated
|
13,568 kt
|
Gold
|
0.12 g/t
|
53 koz
|
|
Proven
|
Disseminated
|
13,568 kt
|
Zinc
|
1.52 %
|
206 kt
|
|
Proven
|
Disseminated
|
13,568 kt
|
Lead
|
0.6 %
|
81 kt
|
|
Probable
|
Disseminated
|
430 kt
|
Silver
|
132 g/t
|
1,823 koz
|
|
Probable
|
Veins
|
3,764 kt
|
Silver
|
123 g/t
|
14,881 koz
|
|
Probable
|
Veins
|
3,764 kt
|
Gold
|
1.58 g/t
|
191 koz
|
|
Probable
|
Disseminated
|
430 kt
|
Gold
|
0.11 g/t
|
2 koz
|
|
Probable
|
Disseminated
|
430 kt
|
Zinc
|
1.04 %
|
4 kt
|
|
Probable
|
Disseminated
|
430 kt
|
Lead
|
0.38 %
|
2 kt
|
|
Proven & Probable
|
Disseminated
|
13,998 kt
|
Silver
|
209 g/t
|
94,135 koz
|
|
Proven & Probable
|
Veins
|
4,456 kt
|
Silver
|
126 g/t
|
17,980 koz
|
|
Proven & Probable
|
Veins
|
4,456 kt
|
Gold
|
1.62 g/t
|
231 koz
|
|
Proven & Probable
|
Disseminated
|
13,998 kt
|
Gold
|
0.12 g/t
|
55 koz
|
|
Proven & Probable
|
Disseminated
|
13,998 kt
|
Zinc
|
1.51 %
|
211 kt
|
|
Proven & Probable
|
Disseminated
|
13,998 kt
|
Lead
|
0.59 %
|
83 kt
|
|
Measured
|
Disseminated
|
12,881 kt
|
Silver
|
242 g/t
|
100,026 koz
|
|
Measured
|
Veins
|
961 kt
|
Silver
|
166 g/t
|
5,134 koz
|
|
Measured
|
Veins
|
961 kt
|
Gold
|
2.24 g/t
|
69 koz
|
|
Measured
|
Disseminated
|
12,881 kt
|
Gold
|
0.14 g/t
|
58 koz
|
|
Measured
|
Disseminated
|
12,881 kt
|
Zinc
|
1.8 %
|
232 kt
|
|
Measured
|
Disseminated
|
12,881 kt
|
Lead
|
0.69 %
|
88 kt
|
|
Indicated
|
Disseminated
|
1,511 kt
|
Silver
|
106 g/t
|
5,142 koz
|
|
Indicated
|
Veins
|
7,902 kt
|
Silver
|
112 g/t
|
28,468 koz
|
|
Indicated
|
Veins
|
7,902 kt
|
Gold
|
1.46 g/t
|
372 koz
|
|
Indicated
|
Disseminated
|
1,511 kt
|
Gold
|
0.09 g/t
|
4 koz
|
|
Indicated
|
Disseminated
|
1,511 kt
|
Zinc
|
1.58 %
|
24 kt
|
|
Indicated
|
Disseminated
|
1,511 kt
|
Lead
|
0.45 %
|
7 kt
|
|
Measured & Indicated
|
Disseminated
|
14,392 kt
|
Silver
|
227 g/t
|
105,168 koz
|
|
Measured & Indicated
|
Veins
|
8,864 kt
|
Silver
|
118 g/t
|
33,603 koz
|
|
Measured & Indicated
|
Veins
|
8,864 kt
|
Gold
|
1.55 g/t
|
441 koz
|
|
Measured & Indicated
|
Disseminated
|
14,392 kt
|
Gold
|
0.14 g/t
|
63 koz
|
|
Measured & Indicated
|
Disseminated
|
14,392 kt
|
Zinc
|
1.78 %
|
256 kt
|
|
Measured & Indicated
|
Disseminated
|
14,392 kt
|
Lead
|
0.66 %
|
95 kt
|
|
Inferred
|
Disseminated
|
6 kt
|
Silver
|
41 g/t
|
8 koz
|
|
Inferred
|
Veins
|
5,375 kt
|
Silver
|
101 g/t
|
17,454 koz
|
|
Inferred
|
Veins
|
5,375 kt
|
Gold
|
1.23 g/t
|
212 koz
|
|
Inferred
|
Disseminated
|
6 kt
|
Gold
|
0.04 g/t
|
|
|
Inferred
|
Disseminated
|
8 kt
|
Zinc
|
2.47 %
|
|
|
Inferred
|
Disseminated
|
6 kt
|
Lead
|
0.08 %
|
|
Financials:
| | Units | 2018 | 2017 | 2016 |
|
Capital expenditures
|
M USD
| ......  | ...... | ...... |
|
Revenue
|
M USD
| ...... | ...... | ...... |
|
Gross profit
|
M USD
| ...... | ...... | ...... |
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