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Snapshot
- Asset Type Underground deposit
- Stage Development
- Key Metals Copper, zinc, lead
- Location Andalucía, Spain
- Ownership 100%
The San Antonio deposit is located approximately one kilometre east of the Cerro Colorado pit. It represents an eastern extension of the historical Planes deposit, which was mined in the early 20th century.
Mineralisation at San Antonio is characterised mainly by massive sulphides and the deposit is shallow at 150 – 300 metres below surface. In the 1960s and 1970s, an exploration programme at the deposit was undertaken by sinking a shaft, developing two levels and completing 183 drill holes, however, no mining took place.
Mining of the San Antonio deposit is likely to be conducted via underground methods. The deposit would be accessed by constructing a ramp collared in the eastern portion of the Cerro Colorado pit that connects to the historical Pozo Rotilio shaft.
Material mined at San Antonio is expected to be processed at Riotinto’s 15 Mtpa plant, following certain plant modifications required to improve copper recoveries and also produce separate zinc and lead concentrates.
RESERVES & RESOURCES
| Grade | Contained Metal | ||||||
| Tonnage | Cu | Zn | Pb | Cu | Zn | Pb | |
| Mt | Mt | Mt | Mt | ||||
| San Antonio | |||||||
| Proven & Probable Reserves | – | – | – | – | – | – | – |
| Measured & Indicated Resources | – | – | – | – | – | – | – |
| Inferred | 11.8 | 1.32% | 1.79% | 0.99% | 0.16 | 0.21 | 0.12 |
| Total Resources | 11.8 | 1.32% | 1.79% | 0.99% | 0.16 | 0.21 | 0.12 |
Scroll horizontally on the table to see more data.
Unless otherwise noted, all scientific and technical information relating to Proyecto Riotinto is based on and derived from a technical report entitled “Technical Report On the Riotinto Copper Project” dated September 2022, prepared by Alan C. Noble, P.E. of Ore Reserves Engineering, in association with Monica Barrero Bouza, EurGeol, and Jay T Pickarts, P.E., Tetra Tech (the “Riotinto Technical Report”), each of whom are “Qualified Persons” as defined in the Canadian National Instrument 43-101 – Standards of Disclosure for Mineral Project (“NI 43-101”). The information contained herein is subject to all of the assumptions, qualifications and procedures set out in the Riotinto Technical Report and reference should be made to the full details of the Riotinto Technical Report which is filed under the Company’s corporate profile on SEDAR at www.sedar.com and on its website.