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Bolañitos //

Bolañitos is located 10 kilometres northwest of the city of Guanajuato, in Guanajuato state, Mexico’s second-largest historic silver mining district, and covers approximately 2,500 hectares. Bolañitos is accessible by municipal roads, and has good local infrastructure, including power from the state power grid, and readily available supplies, services, and local labour in the nearby city of Guanajuato. The Bolañitos sub-district is characterized by multiple subparallel low-sulphidation epithermal veins typically thousands of metres long, up to 250 metres deep, and ranging from one to 10 metres thick.

Since acquisition, we have discovered seven high-grade silver-gold ore bodies, opened one new mine and completed three plant expansions. There are now two underground mining operations feeding a central, 1,600 tonne-per-day plant to produce bulk silver-gold concentrates. Bolañitos provides steady employment for 365 people and engages 224 contractors.

During 2017, Bolanitos produced 934,238 oz of silver and 26,910 oz of gold for silver equivalent production of 3.0 million oz (using a 75:1 silver: gold ratio). Silver equivalent production significantly exceeded guidance for 2017 due to higher throughput and higher silver and gold recovery, and higher gold grades.

2017 Results

Production 0.9 million oz silver/ 26,910 oz gold
3.0 million ounces of silver equivalent (75:1 silver:gold)
Ore Tonnes Processed 446,924/ 1,224 tpd
Grades silver 80 gpt/ gold 2.24 gpt
Recoveries silver 81.3%/ gold 83.6%
Cash Costs per Ounce ($4.00)
All In Sustaining Costs per Ounce $1.62

Reserves and Resources: Silver

  • 1.15 million oz silver
    Proven & Probable Reserves
  • 3.8 million oz silver
    Measured & Indicated Resources
  • 4.6 million oz silver
    Inferred Resources

Reserves and Resources: Gold

  • 27,800 oz gold
    Proven & Probable Reserves
  • 47,400 oz gold
    Measured & Indicated Resources
  • 59,200 oz gold
    Inferred Resources
*for full details, refer to the complete Reserves and Resources table found here

Bolañitos is our most profitable mine.

Map Bolanitos