ExGen Announces Empire Mine Gold Recoveries Exceed 97% Using Environmentally Friendly Reagent
10 Septembre 2020 - 10:30PM
ExGen Resources Inc. (TSX.V: EXG; OTC: BXXRF)
(“ExGen”, the “Company”) is pleased to report positive
metallurgical test results by AuRIC Metalurgical Labs, LLC for
Phoenix Copper Ltd.’s (“Phoenix”) Empire Mine Project
in Idaho, USA. ExGen owns 20% and Phoenix owns 80% of
Konnex Resources, Inc. (“Konnex”), which holds the leases and
claims to the Empire Mine Project. ExGen further has a 2.5% NSR
royalty on the Empire Mine Project and owns 1,330,000 common shares
of Phoenix.
Highlights
- Precious metals tests performed on samples from the Empire open
pit deposit using non-toxic ammonium thiosulfate (“ATS”) reagent
resulted in high gold recoveries of 97.8% and 97.7%, and
silver recoveries of 69.8% and 78.2%, respectively
- ATS reagent consumption comparable to sodium cyanide in
back-to-back bench scale tests
- This development will have a positive impact on the permitting
timeline for possible gold production at Empire as there is no
longer be the requirement to permit a cyanide operation
- Pilot scale test plant now being prepared at AuRIC’s
laboratory in Salt Lake City before commencing small scale
pilot testing at the Empire Mine MIne site
Jason Riley, CEO of ExGen commented: “We are
pleased to see the excellent recoveries of gold from the cyanide
alternative ATS reagent. Should further testing confirm the
recoveries at a larger scale, we are hopeful this could have a
positive impact on the permitting timeline for potential gold and
silver production at Empire.”
Empire Mine – Gold and Silver
Metallurgical Recovery
As part of the Company’s ongoing Empire Mine
work programme, samples amounting to 400 pounds were collected from
outcrops near the location of channel samples analysed in 2018. The
head-grade of the 400-pound sample assayed at 12.8 g/ton
gold. The sample was submitted to AuRIC Metallurgical
Laboratories in Salt Lake City, Utah for cyanide-alternative
laboratory and bench scale agitated-tank leach testing.
AuRIC performed 4 laboratory scale amenability
tests and 2 bench scale extraction tests using sodium cyanide
lixiviant, and 4 laboratory scale amenability tests and 2 bench
scale extraction tests using the non-toxic ammonium thiosulfate
lixiviant (ATS), on splits from the primary sample. The
results of this test work indicate that ATS works equally as well
as sodium cyanide on both the laboratory scale samples (30g to
250g) and the bench scale samples (3,000g). Gold recovery using ATS
on the 2 bench samples resulted in 97.8% and 97.7%, and silver
recovery was 69.8% and 78.2% after 6 hours of leaching. ATS
reagent consumption for both tests was 4.32% and 4.42%,
respectively. Tables 1 and 2 show the
results of ATS 6-hour leach testing.
By comparison, the sodium cyanide gold
recoveries on splits of the same sample were 97.8% and 97.7%, and
silver recoveries of 68.1% and 65.5% following 6 hours of leach
time. The sodium cyanide reagent consumption for both tests
was 6.00%. A detailed laboratory report titled “Laboratory and
Bench Scale Metallurgical Extraction Tests Performed Using Sodium
Cyanide and Ammonium Thiosulfate Leaches on a Composite Sample of
Magnetite Ore from the Empire Mine, Custer CO, ID” can be viewed on
the Company’s website at www.phoenixcopperlimited.com/reports.
Table 1 - 3,000-gram Bench Scale Test Results using
Ammonium Thiosulfate – Run 1 |
|
Test 4894C |
Time (h) |
Free ATS (g/L) |
ATS Cons. % |
pH |
Solution Volume (mL) |
Au (g/ton) 12.78 |
Ag (g/ton) 13.43 |
g/ton |
% Rec |
g/ton |
% Rec |
0 |
14.82 |
- |
10.20 |
4,500 |
0.000 |
|
0.000 |
0.0 |
1 |
14.38 |
2.97 |
10.20 |
4,500 |
10.575 |
82.7 |
5.625 |
41.9 |
2 |
14.30 |
3.51 |
10.18 |
4,500 |
11.820 |
92.5 |
6.173 |
46.0 |
3 |
14.22 |
4.05 |
10.14 |
4,500 |
12.225 |
95.7 |
8.888 |
66.2 |
4 |
14.20 |
4.18 |
10.14 |
4,500 |
12.480 |
97.7 |
9.113 |
67.9 |
5 |
14.18 |
4.32 |
10.11 |
4,500 |
12.450 |
97.4 |
9.366 |
69.7 |
6 |
14.18 |
4.32 |
10.06 |
4,500 |
12.495 |
97.8 |
9.374 |
69.8 |
Table 2 -
3,000-gram Bench Scale Test Results using Ammonium Thiosulfate –
Run 2 |
|
Test 4899C |
Time (h) |
Free ATS (g/L) |
ATS Cons. % |
pH |
Solution Volume (mL) |
Au (g/ton) 12.78 |
Ag (g/ton) 13.43 |
g/ton |
% Rec |
g/ton |
% Rec |
0 |
29.64 |
- |
10.20 |
4,500 |
0.000 |
|
0.000 |
0.0 |
1 |
29.00 |
2.16 |
10.20 |
4,500 |
10.650 |
83.3 |
6.236 |
46.4 |
2 |
28.85 |
2.67 |
10.20 |
4,500 |
11.925 |
93.3 |
8.543 |
63.6 |
3 |
28.65 |
3.34 |
10.18 |
4,500 |
12.270 |
96.0 |
10.193 |
75.9 |
4 |
28.47 |
3.95 |
10.18 |
4,500 |
12.480 |
97.7 |
10.358 |
77.1 |
5 |
28.37 |
4.28 |
10.19 |
4,500 |
12.492 |
97.7 |
10.500 |
78.2 |
6 |
28.33 |
4.42 |
10.18 |
4,500 |
12.483 |
97.7 |
10.500 |
78.2 |
Qualified PersonThe scientific
and technical data contained in this news release was prepared and
reviewed by Kieran Downes, P.Geo., an independent qualified person
to the Company. Mr. Downes is responsible for ensuring that the
geologic information provided in this news release is accurate and
acts as a qualified person pursuant to National Instrument 43-101 –
Standards of Disclosure for Mineral Projects.
ABOUT EXGEN RESOURCES INC.
ExGen, formerly Boxxer Gold Corp, is a project
accelerator that seeks to fund exploration and development of our
projects through joint ventures and partnership agreements. This
approach significantly reduces the technical and financial risks
for ExGen, while maintaining the upside exposure to new discoveries
and potential cash flow. The company intends to build a diverse
portfolio of projects across exploration stages and various
commodity groups. ExGen currently has 6 projects in Canada and the
US.
For more information on ExGen please contact
ExGen Resources Inc.
Jason Tong Chief Financial Officer Email:
jason@catapultgroup.ca
Neither the TSX Venture Exchange nor its
Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts responsibility for
the adequacy or accuracy of this release.
Forward-Looking Information:
This news release contains certain forward-looking information. All
statements included herein, other than statements of historical
fact, are forward-looking information and such information involves
various risks and uncertainties. There can be no assurance that
such information will prove to be accurate, and actual results and
future events could differ materially from those anticipated in
such information. In particular, this news release contains
forward-looking information in relation to: the Empire Mine Project
and the exploration and development of the Empire Mine Project; the
earning of the Option by Phoenix and the potential transfer back to
ExGen of the Konnex shares; the exploration and development
strategy of the Empire Mine Project, including the exploration
program, drilling, mine development, completion of a potential
feasibility study in compliance with NI 43-101, and the timing for
completion of these events; the timing for the completion of
exploration drilling and the receipt of exploration information and
drill assays; the potential of the underground sulphide
mineralization and the potential re-opening of the 700 and 1100
level portals to assist in the analysis of the potential sulphide
mineralization. The expanded 3.5 km strike length of the Empire
Mine property and the potential for an enlarged scale opportunity.
The potential for the RedStar Zone and the Horseshoe Block to host
copper mineralisation similar to that in the Empire Block. The
potential for the RedStar Zone and the Horseshoe Block to host
further mineralization of a lead and silver system. There can be no
assurance that such information will prove to be accurate, and
actual results and future events could differ materially from those
anticipated in such information. There can be no assurance that the
development of the Empire Mine Project will be completed, and if
development is completed, that such development will result in a
producing mine. In the forward looking information contained in
this news release, ExGen has made numerous assumptions, based upon
practices and methodologies which are consistent with the mineral
industry. In addition, ExGen has assumed: the continued market
acceptance of its joint venture partnership model; the ability of
ExGen and its partners to raise future equity financing, if needed,
at prices acceptable to ExGen or its partners; ExGen's current and
initial understanding and analysis of the Empire Mine Project; the
ability of ExGen or third parties to discover viable exploration
targets and the results of exploration on the Empire Mine Project;
the ability of Phoenix to explore and develop the Empire Mine
Project; the cost of exploration, including sampling, drilling and
assaying, on the Empire Mine Project, the costs of developing the
Empire Mine Project and the costs and the ability of Phoenix to
produce a feasibility study in compliance with NI 43-101; the costs
and work required to re-open the 700 and 1100 level portals; and
ExGen's general and administrative costs remaining sustainable.
While, ExGen considers these assumptions to be reasonable, these
assumptions are inherently subject to significant uncertainties and
contingencies. Additionally, there are known and unknown risk
factors which could cause ExGen's observations, actual results,
performance or achievements to be materially different from any
future results, performance or achievements expressed or implied by
the forward-looking information contained herein. Known risk
factors include, among others: there is no certainty that the
Option will result in significant or successful exploration of the
Empire Mine Project or development of the Empire Mine Project into
a producing mine; uncertainties relating to interpretation of drill
results and the geology, continuity and grade of mineralization and
uncertainty as to the actual results of exploration and development
or operational activities; uncertainty as to the availability and
terms of future financing; uncertainty as to timely availability of
permits and other governmental approvals; ExGen may not be able to
comply with its ongoing obligations regarding its properties; the
early stage development of ExGen and its projects, and in
particular, the Empire Mine Project; general business, economic,
competitive, political and social uncertainties; capital market
conditions and market prices for securities, junior market
securities and mining exploration company securities; commodity
prices, in particular copper, gold, silver, and zinc prices;
competition; changes in project parameters as plans continue to be
refined; accidents and other risks inherent in the mining industry;
lack of insurance; delay or failure to receive board or regulatory
approvals; changes in legislation, including environmental
legislation, affecting ExGen; conclusions of economic evaluations;
and lack of qualified, skilled labour or loss of key individuals. A
description of additional assumptions and risk factors used to
develop such forward-looking information that may cause actual
results to differ materially from forward-looking information can
be found in ExGen's disclosure documents on the SEDAR website at
www.sedar.com. Although ExGen has attempted to identify important
factors that could cause actual results to differ materially from
those contained in forward-looking information, there may be other
factors that cause results not to be as anticipated, estimated or
intended. Accordingly, readers should not place undue reliance on
forward-looking information. ExGen does not undertake to update any
forward-looking information except in accordance with applicable
securities laws.
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