Camino and Nittetsu Commence Proprietary Leaching Studies for Growth Opportunities at the Puquios Copper Project in Chile
Original announcement by tmx on
- Company
- Camino Minerals Corporation
- Ticker
- COR
- Exchange
- TSX
- Region
- Chile
- Primary commodity
- Copper
- Secondary commodities
- None reported
- Document categories
- Metallurgy
- Extracted
- 2026-08-21 06:47:46 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Camino Minerals and Nittetsu have commenced proprietary leaching studies in Tokyo to assess scale-up opportunities for the Puquios Copper Project in Chile. The project is planned as a conventional sulphide leaching operation using SX-EW technology, with construction anticipated in the first half of 2026.
Reasoning: The announcement marks a transition from exploration/permitting to metallurgical optimization and construction preparation for the Puquios project.
Positive factors
- Commencement of proprietary leaching studies for scale-up
- Permits for construction are already in place
- Strategic partnership with Nittetsu for metallurgical R&D
- Path towards production in 1H 2026
Negative factors
- Studies are at the R&D/proprietary stage, not yet commercial scale
Facts used in scoring: 1

Classification and evidence
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The project is planned as a conventional sulphide leaching operation utilizing SXEW technology.
Evidence · text
“utilizing solvent extraction and electro winning (" SXEW ") technology”
Bench Scale Onlynegative
Only preliminary bench tests completed — no locked-cycle or pilot work.
Why it applies: Studies are being conducted at a research and development facility in Tokyo rather than at a pilot or commercial scale.
Evidence · text
“initiate leaching studies at Nittetsu's metallurgical and chemical facility in Tokyo”
Extracted facts
Stored fact records: 1. Some facts used in scoring do not have a stored record.
Metallurgical Results (1)
leaching studiesPuquios · copperView all detailsHide details
Identity
- Project
- Puquios
- Commodity
- copper
- Region
- chile
- Reported Region
- Chile
- Ticker
- COR
Test Work
- Program Status
- preliminary
- Test Type
- leaching studies
- Processing Route
- SXEW
- Sample
- samples of the deeper mineralization extracted from exploration adits
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-10-30T00:00:00.000Z
Reasoning: Initial results from Nittetsu demonstrate competitive recoveries for different copper mineralization types.
Positive factors
- Testing proprietary extraction technologies
Evidence · text
“Nittetsu has been advancing proprietary copper extraction technologies and initial results demonstrate competitive recoveries”
How Atlas produces this analysis
Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.