San Julián (Phase I and II)

San Julian silver-gold mine contributed 26.5% to total silver production and generated 16.1% of total adjusted revenue (2022).
Ownership: | 100% Fresnillo plc |
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Location: | Chihuahua/Durango border |
Commodity: | Silver/Gold |
Operational since: | 2H16 (Vein System) / 2Q17 (Disseminated Ore Body) |
Facilities: | Underground mine, flotation plant and a dynamic leaching plant |
Workforce: | 668 employees, 1,262 contractors |
Life of Mine: | 4.8 Veins (2021: 4.4), 2.8 Disseminated Ore Body (2021: 3.1) |
The San Julián silver-gold project is a cornerstone of our current and future production goals. The geological potential identified in the region thus far may be sufficient to establish a new mining district in the future. The San Julián project includes construction of two plants: i) a dynamic leaching plant to treat ore from the veins and ii) a flotation plant with 6,000 tpd capacity to process ore from the disseminated body.
Quarterly Production
1Q23 | 4Q22 | % change | 1Q22 | |||
Ore processed: - Veins (t) | 283,752 | 294,582 | (3.7) | 294,144 | ||
Ore processed: - DoB (t) | 522,260 | 517,733 | 0.9 | 541,030 | ||
Total Production San Julian | ||||||
Gold (oz) | 12,033 | 11,907 | 1.0 | 11,684 | ||
Silver (koz) | 3,412 | 3,113 | 9.6 | 3,640 | ||
Production: Phase I - Veins |
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Gold (g/t) | 11,139 | 11,062 | 0.7 | 10,844 | ||
Silver (g/t) | 1,312 | 1,288 | 1.9 | 1,060 | ||
Production: Phase II - DOB |
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Gold (g/t) | 894 | 845 | 5.7 | 840 | ||
Silver (g/t) | 2,100 | 1,825 | 15.1 | 2,580 | ||
Lead (t) | 1,855 | 1,712 | 8.4 | 1,608 | ||
Zinc (t) | 3,755 | 3,604 | 4.2 | 4,725 | ||
Ore grades: Phase I - Veins | ||||||
Gold (g/t) | 1.28 | 1.23 | 3.6 | 1.21 | ||
Silver (g/t) | 158 | 149 | 6.1 | 123 | ||
Ore grades: Phase II - DOB | ||||||
Gold (g/t) | 0.09 | 0.08 | 9.0 | 0.08 | ||
Silver (g/t) | 146 | 130 | 11.9 | 173 | ||
Lead (%) | 0.46 | 0.43 | 8.2 | 0.39 | ||
Zinc (%) | 0.96 | 0.93 | 3.1 | 1.11 |