Overview
| Stage | Feasibility |
| Mine Type | Tailings |
| Commodities |
|
| Mining Method |
|
| Processing |
- Flotation
- Heap leach
- Solvent Extraction & Electrowinning
|
| Mine Life | 9 years (as of Jan 1, 2015) |
Source:
p. 4
Copper Bay is a private company in which CAML has a 75% interest and owns 100% of the project at Chañaral Bay, in the Atacama region of Chile, some 1,000km north of Santiago.
Summary:
Currently, it is envisaged that the resource will be mined using dredging operations feeding the tailings product to the process plant.
Processing Technologies
- Flotation
- Heap leach
- Solvent Extraction & Electrowinning
Summary:
Metallurgical test work indicates that the most effective means of extracting the copper from the tailings is by initial acid leach to produce a copper cathode product followed by froth flotation of the leach tails to produce a clean copper concentrate. Indicative metallurgical recovery from the PFS test work is 72.8%.
The DFS utilises a dredging operation to recover the copper tailings, a solvent extraction and electro-winning (SX-EW) plant to produce copper cathode and a flotation circuit to produce a copper in concentrate product that could be marketed to nearby smelters.
Projected Production:
| Commodity | Product | Units | Avg. Annual |
|
Copper
|
Metal
|
t
| 8,600 |
|
Copper
|
Cathode
|
t
| 6,200 |
|
Copper
|
Metal in concentrate
|
t
| 2,400 |
Reserves at December 31, 2015:
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Indicated
|
42,714 kt
|
Copper
|
0.244 %
|
104,345 t
|
|
Inferred
|
8,469 kt
|
Copper
|
0.234 %
|
19,838 t
|
Commodity Production Costs:
| | Commodity | Units | Average |
|
C1 cash costs
|
Copper
|
USD
|
1.34 / lb *
|
|
Assumed price
|
Copper
|
USD
|
3 / lb *
|
* According to 2015 study / presentation.
2015 Study Costs and Valuation Metrics :
| Metrics | Units | LOM Total |
|
Total CapEx
|
$M USD
|
...... 
|
|
After-tax NPV @ 8%
|
$M USD
|
......
|
|
Ater-tax IRR, %
|
|
......
|
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Mine Management:
| Job Title | Name | Ref. Date |
.......................
|
.......................
|
Sep 7, 2018
|
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