Overview
Stage | Permitting |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Processing |
- Dewatering
- Filter press plant
- Flotation
|
Mine Life | 13 years (as of Jan 1, 2020) |
Source:
p. 1
The Hillside Copper-Gold project is 100% owned by Rex Minerals Ltd.
Summary:
Following a drill campaign in 2008, numerous large-scale copper-gold intersections were identified at Hillside, leading to its discovery and recognition as an Iron-Oxide-Copper-Gold (IOCG) style deposit.
Summary:
The open pit is value optimised and is designed in five phases. Rock movement is scheduled to ensure adequate operating area and access to ore.
After an initial pre-strip of 54Mt, the strip ratio for the operating life is 6.7:1 (waste:ore). Peak total rock haulage is 60Mtpa. Almost 90% of all material (ore and waste) will be mined with 550t hydraulic backhoe excavators, coupled with a fleet of ultra-class (296t) trucks, using the doublebenching method. Narrower ore zones will be mined with 250t backhoe excavators to minimise dilution and improve ore recovery. Peak material movement is achieved with a manageable maximum of 16 trucks.
The Project has a typical support fleet which includes drills, mid-sized graders, tracked and wheel dozers, front-end loaders and water and service trucks.
Flow Sheet:
Crusher / Mill Type | Model | Size | Power | Quantity |
Jaw crusher
|
|
|
|
1
|
SAG mill
|
|
|
|
1
|
Stirred mill
|
.......................
|
|
|
2
|
Processing
- Dewatering
- Filter press plant
- Flotation
Flow Sheet:
Summary:
The processing plant has a designed throughput capacity of 6 Mpta. It includes initial crushing and grinding before a first stage (rougher) flotation. This is followed by a fine grind and second stage (cleaner) flotation, before preparation for transport as a copper-gold concentrate.
The average copper grade of the copper concentrate is over 27% and the average annual copper concentrate produced over the first 12 years of operations is approximately 129,000t.
The layout for the processing plant allows for natural expansion capacity to a nominal 12Mtpa and the inclusion of an iron ore recovery circuit (if warranted), as per the conditions of the Mineral Lease.
Recoveries & Grades:
Commodity | Parameter | Avg. LOM |
Copper
|
Recovery Rate, %
| 91.5 |
Copper
|
Head Grade, %
| 0.66 |
Copper
|
Concentrate Grade, %
| 27 |
Gold
|
Recovery Rate, %
| 77.8 |
Gold
|
Head Grade, g/t
| 0.17 |
Projected Production:
Commodity | Product | Units | Avg. Annual |
Copper
|
Metal in concentrate
|
t
| 35,000 |
Copper
|
Concentrate
|
kt
| 129 |
Gold
|
Metal in concentrate
|
oz
| ......  |
Operational Metrics:
Metrics | |
Stripping / waste ratio
| ......  |
Plant annual capacity
| ......  |
Annual mining rate
| ......  |
Annual ore mining rate
| ......  |
* According to 2020 study.
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Reserves at July 31, 2020:
Copper Resources reported above a 0.2% cut-off.
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven
|
42 Mt
|
Copper
|
0.55 %
|
228,049 t
|
Proven
|
42 Mt
|
Gold
|
0.19 g/t
|
250,454 oz
|
Probable
|
40 Mt
|
Copper
|
0.7 %
|
281,213 t
|
Probable
|
40 Mt
|
Gold
|
0.14 g/t
|
181,051 oz
|
Proven & Probable
|
82 Mt
|
Copper
|
0.62 %
|
509,262 t
|
Proven & Probable
|
82 Mt
|
Gold
|
0.16 g/t
|
431.504 oz
|
Total Resource
|
337 Mt
|
Copper
|
0.6 %
|
1,967,600 t
|
Total Resource
|
337 Mt
|
Gold
|
0.14 g/t
|
1,416,240 oz
|
Mine Management:
Job Title | Name | Profile | Ref. Date |
.......................
|
.......................
|
|
Jun 30, 2021
|
- Subscription is required.
Staff:
Employees | Year |
|
2020
|
Corporate Filings & Presentations:
Document | Year |
...................................
|
2021
|
...................................
|
2020
|
- Subscription is required.
- Subscription is required.