Overview
| Status | Care and Maintenance |
| Mine Type | Underground |
| Commodities |
|
| Mining Method |
|
| Production Start | ...  |
The Endeavor mine was previously classified as production, however it was placed on care and maintenance in December 2019 and has not since restarted, as such the Company has reclassified it to development stage properties.
During this care and maintenance period the Mine has been maintained in a state of readiness to enable mining to resume.
In March 2023 Polymetals Resources Ltd. announced the transformational acquisition of the Endeavor SilverZinc-Lead Mine. Under this arrangement Endeavor will continue to meet safety and environmental regulations on site to enable the reopening of the Mine for future operations. |
Source:
p. 4,6
CBH Resources Limited (“CBH”) is the operator of the Endeavor mine on which Metalla Royalty & Streaming Ltd. owns a stream on 100% of the by-product silver (“Ag”) produced from the Endeavor mine.
In December 2022, Cobar Metals entered into a separate agreement with CBH pursuant to which Cobar Metals will acquire, and CBH will sell, all of the issued share capital in three wholly owned CBH subsidiaries which together own the Endeavor Project (Endeavor Share Sale Agreement). On completion of the Endeavor Share Sale Agreement between Cobar Metals and CBH, Cobar Metals will acquire the three Endeavor Project companies.
In March 2023 Polymetals Resources Ltd. announced the transformational acquisition of the Endeavor SilverZinc-Lead Mine. Mine acquisition negotiations with CBH commenced following agreement with royalty owner, Metalla Royalty and Streaming Ltd.
Contractors
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Summary:
The Endeavor zinc-lead-silver mine is located 43km NNW of Cobar. The mine contains two styles of mineralisation: above about 900m depth an irregular sub-vertical sheet is hosted by a turbidite sequence and broadly coincides with an anticline axial plane; at the bottom of this sheet mineralisation bifurcates into grossly concordant zones.
The Endeavor mineralisation is contained within the Cobar Basin, which is in turn part of the Lachlan Fold Belt. Basement rocks include Ordovician sediments and Silurian granitic rocks. The basin contains mainly siliciclastic sediments with minor volcanic rocks and carbonates. Sedimentation continued from the Late Silurian until the Early Devonian. Polymetallic mineralisation within the Cobar Basin is thought to have coincided with a period of basin compression and folding (Lawrie and Hinman 1998). The mineralisation is largely discordant and vein or replacement in form. It is associated with silicic, carbonate and chlorite alteration. Most of the major known mineral deposits, including Endeavor, CSA, Peak and Hera are located along a linear structural corridor at least 200km in length.
High-grade massive sulphide mineralisation at Endeavor is enveloped by sulphide stringers, which are in turn enveloped by siderite alteration. The halo of siderite alteration extends for several tens of metres away from sulphide mineralisation and consists of 1 to 2mm diameter clots that preferentially replace sandy beds. Chloritic alte ........
Summary:
The leases form a contiguous block of 10,121 acres in size and expire between 2019 and 2027. The mine employs bulk mining methods.
Source:
Summary:
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Production:
Reported 2017 production and financial results include operations through May 2017 in accordance with the terms of the sale agreement.
Production 2018 includes attributable silver oz. from the Endeavor silver stream that were produced, shipped and provisionally invoiced during June and July 2017, where the Metalla Royalty & Streaming Ltd. is entitled to the associated trade receivable amounts.
| Commodity | Product | Units | 2018 | 2017 | 2016 | 2015 |
|
Silver
|
Payable metal
|
koz
| 502 | 107 | 248 | 629 |
|
Zinc
|
Concentrate
|
kt
| | ...... | | |
|
Lead
|
Concentrate
|
kt
| | ...... | | |
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Operational Metrics:
| Metrics | 2017 | 2016 | 2015 |
|
Tonnes milled
| 133,904 tons of ore | 219,430 tons of ore | 767,314 tons of ore |
Reserves at December 31, 2016:
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Proven
|
476,000 tons
|
Silver
|
2.48 oz/ton
|
1,181,000 oz
|
|
Probable
|
753,000 tons
|
Silver
|
1.92 oz/ton
|
1,449,000 oz
|
|
Proven & Probable
|
1,229,000 tons
|
Silver
|
2.14 oz/ton
|
2,630,000 oz
|
|
Measured
|
5,697,000 tons
|
Silver
|
1.95 oz/ton
|
11,115,000 oz
|
|
Indicated
|
7,845,000 tons
|
Silver
|
2.18 oz/ton
|
17,085,000 oz
|
|
Measured & Indicated
|
13,542,000 tons
|
Silver
|
2.08 oz/ton
|
28,200,000 oz
|
Commodity Production Costs:
| | Commodity | Units | 2017 | 2016 |
|
Total cash costs (sold)
|
Silver
|
USD
|
6.96 / oz
|
6.56 / oz
|
Financials:
| | Units | 2016 |
|
Operating Cash Flow
|
M USD
|
0.2
|
Corporate Filings & Presentations:
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