MIGUEL VACAS COPPER
The copper mine last operated in 1986 and has produced at an average grade of 1.2-1.4% Cu. Historical near surface drilling (60 to 71.63m) intercepted 1.79 % Cu over 10.54m including 2.29% Cu over 7.30 m.
A historical non-compliant in-house resource estimation* was completed by Rio Narcea in 2007 based on 20 historical holes and estimated:
- Oxide ore (from 0 to 80m depth): 1.2 Mt @ 1.23% Cu.
- Sulphide ore (from 80m to 250m): 4.4 Mt @ 1.24% Cu
The project remains open for exploration.
*The readers should not rely on any historical estimates. The Company and the QP has not done sufficient work to classify historical estimate as a current resource. Company is not treating the historical estimate as a current resource. Additional work including drilling will be required to verify and upgrade historical estimates.
