Tudor Gold Increases Overall Gold Recoveries to Over 80%, Produces a High-Grade Copper, Gold and Silver Concentrate for the Goldstorm Deposit at Treaty Creek, Northwestern B.C.
Tudor Gold Increases Overall Gold Recoveries
to Over 80%, Produces a High-Grade Copper,
Gold and Silver Concentrate for the Goldstorm
Deposit at Treaty Creek, Northwestern B.C.
Vancouver, British Columbia--(Newsfile Corp. - April 22, 2025) - Tudor Gold Corp.
(TSXV: TUD) (FSE:
H56) (OTC Pink: TDRRF)
(the "
Company
" or "
Tudor
") is pleased to announce an update to ongoing
metallurgical testwork on the Goldstorm Gold, Copper and Silver Deposit, located on the Treaty Creek
Project situated within the Golden Triangle of Northwestern British Columbia.
Highlights from the recent follow-up metallurgical testing on the Lower CS-600 sub-domain included a
significant increase in gold recovery:
Flotation recoveries and gold extraction
within the Lower CS-600 sub-domain
totaled up to
85.8% copper, 80.2% gold, and 58.1% silver.
Flotation testing consistently achieved a high-grade copper concentrate
of 30.3%
copper, 36.5 g/t gold and 99.8 g/t silver.
In comparison, highlights from the previous metallurgical testing released
October 24, 2024
on the
Lower CS-600 sub-domain included:
Flotation recoveries
within the Lower CS-600 sub-domain
totaled up to 88.1% copper, 63.8%
gold, and 51.3% silver.
Flotation testing confirmed that a high-grade copper concentrate with significant quantities of gold
can be produced from the Lower CS-600 sub-domain, that exceeds
29% copper with
significant gold and silver grades of 33 g/t and 96 g/t
, respectively.
Commenting on the results, Ken Konkin, President & CEO of Tudor Gold stated
, "We are very
pleased with our second set of flotation test results obtained from the lower portion of the CS-600
Domain (CS-600L). We estimate more than 50% of the CS-600 Domain is located within the lower
portion (the CS-600L sub-domain). These latest results compared favorably with the first locked cycle
test we announced on October 24, 2024.
With a simple rougher-cleaner flotation process we are
consistently able to produce an exceptionally clean, high-grade copper/gold concentrate with excellent
metal recoveries and, significantly, we were able to recover more gold during the most recent
metallurgical work with an additional leaching step. We conducted testing on the flotation tailings and
pyrite concentrates by simply leaching these with cyanide. This added a substantial amount of gold,
which increased the combined gold recovery to just over 80%. Our metallurgical team believes that
continued fine-tuning of the process may continue to yield higher recoveries. Several tests demonstrated
that higher gold recoveries were associated with finer grinds. These reported recoveries utilized a grind
size of 75 microns.
The CS-600L sub-domain is located in the same area that hosts the newly
discovered Supercell-1 (SC-1) high-grade gold complex. Our technical team is currently completing
elements of our next permit application to include the construction of an exploration ramp designed to
intersect the area immediately adjacent to the CS-600 Domain and directly above the newly discovered
SC-1 high-grade gold structures. The proposal is to construct a three-kilometer-long exploration ramp
collared from our Lower Camp area that will allow us to more efficiently drill test the SC-1 complex. This
is an important aspect of our Treaty Creek Project, as the added possibility of defining a high-grade,
multi-million-ounce gold deposit would greatly enhance the economic potential of the project, since it
would provide us with a much smaller Capex target to start the mine process."
The follow-up flotation program on the Lower CS-600 sub-domain focused on optimizing gold recovery.
In addition to using the typical copper flowsheet to produce the saleable copper concentrate, cyanide
leach of the flotation tails was investigated.
Additionally, evaluation of a sequential copper-pyrite
flowsheet was conducted, and cyanide leach of the pyrite concentrate at various grind sizes carried out.
Further testwork to investigate the upside potential of gravity concentration as well as optimization of
flotation and leach conditions has been recommended to further improve copper and gold recoveries.
Remaining samples from the original PJ-5434 and PJ-5473 CS600L testwork were used to further
advance this gold optimization testwork.
To maximize material, the remaining samples were blended
from the two previous testwork campaigns and therefore cannot be taken as a direct comparison to the
locked cycle testwork, however, provide a close comparison for discussion.
GOLDSTORM DEPOSIT - Viewing Southwest (220°/-10°)
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4494/249330_2cdd8deda45a5841_002full.jpg
Metallurgical Test Work and Results:
Initial metallurgical testing carried out at Blue Coast Research, under the supervision of Fuse Advisors
Inc. continued to demonstrate that a high-grade copper/gold concentrate could be produced from the
Lower CS-600L domain along with increased gold recoveries through further processing of the flotation
tails.
The following approaches to improving gold recovery were conducted:
Optimization of copper and sequential copper-pyrite flotation circuit for gold;
Evaluation of cyanide leach on the copper rougher flotation tails for gold extraction;
Evaluation of cyanide leach on the pyrite concentrate produced from sequential copper/pyrite
flotation
Flotation Optimization:
A number of batch roughers tests were carried out to understand if gold recovery could be improved in
the copper roughers or through sequential pyrite flotation.
Further cleaner tests were conducted to
understand the impact downstream.
A summary of the tests completed can be found in Table 1.
F2/F3/F7 - Optimize gold recovery into the pyrite concentrate by investigating some of the
following parameters: Collector dosage, flotation time, copper sulphate addition
F4 - Investigate the impacts of floating more pyrite into the copper concentrate.
Natural pH in the rougher circuit, collector dosage
F6/F8 - Cleaner tests to investigate how pulling additional pyrite into the rougher concentrate
effects gold and copper cleaning
Table 1 - Source: Fuse Advisors Inc. (2025)
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4494/249330_tudortable1.jpg
Initial results indicated there was notable variability in the copper circuit gold recovery, however, the
pyrite circuit was consistent at recovering 87% gold to copper rougher and pyrite rougher.
The bulk
copper rougher at a natural pH was able to achieve the same 87% gold recovery, however, had negative
implications in the cleaning circuit, resulting in reduced overall copper and gold recoveries.
Copper Rougher Flotation Tails Leach:
The copper rougher flotation tails leach flowsheet follows a typical copper flotation circuit configuration,
with standard copper flotation reagents, as seen in Figure 1. The batch flotation tests achieved
recoveries of 85.8% copper, 66.3% gold, and 58.1% silver into a concentrate with grade 30.3% copper,
36.5 g/t gold.
The copper rougher flotation tails were subjected to cyanide leach testwork, resulting in 53% gold
extraction.
The flotation rougher tailings contained 26% of the total gold, yielding a total gold extraction of
13.9%.
The combined gold flotation recovery plus cyanide extraction totaled 80.2%.
Proposed Flowsheet - Copper Rougher Flotation Tails Leach:
Figure 1 - Source: Fuse Advisors Inc. (2025)
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4494/249330_tudorfig1.jpg
Copper-Pyrite Sequential Flotation/Pyrite Concentrate Leach:
An additional sequential copper/pyrite flowsheet was evaluated to recover additional gold from a pyrite
concentrate, shown in Figure 2.
Numerous tests were performed which demonstrated an average of 15-
20% gold recovery to the pyrite concentrate. The pyrite concentrate was reground to 10 microns and
subjected to cyanide leach, extracting 42-48% gold.
This provided an additional gold extraction of 7-8%
for a total gold recovery and extraction of 67-71%.
Proposed Flowsheet - Copper-Pyrite Sequential Flotation/Pyrite Concentrate Leach:
Figure 2 - Source: Fuse Advisors Inc. (2025)
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4494/249330_tudorfig2.jpg
Table 2 - Source: Fuse Advisors Inc. (2025)
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4494/249330_tudortable2.jpg
Results of the rougher tails and pyrite concentrate tests are summarized in Table 2. This preliminary
testwork has highlighted the ability to improve gold recovery in the CS-600L sub-domain and shows
notable gold recovery improvements from previous testwork.
Tudor Gold also announces that the Company was notified by Fuse Advisors of an incorrect table
included in the February 27, 2025 press release regarding Locked Cycle Metallurgical Test Work and
Results. This has since been corrected in the version of the press release available on the Tudor Gold
website, with the accurate table provided below.
To view an enhanced version of this graphic, please visit:
https://images.newsfilecorp.com/files/4494/249330_2cdd8deda45a5841_007full.jpg
QA/QP
The metallurgical program was carried out by Blue Coast Research of Nanaimo, B.C., selected to
conduct further mineralogical assessment of the Goldstorm sample material. The metallurgical and
mineralogical work was conducted under the supervision of Travis O'Farrell, P. Eng of Fuse Advisors
Inc., a Qualified Person as defined by NI 43-101. Mr. O'Farrell has reviewed this news release and
agreed to its contents.
Ken Konkin, P.Geo, President and CEO, Tudor Gold, is the Qualified Person, as defined by National
Instrument 43-101, responsible for the Project. Mr. Konkin has reviewed, verified, and approved the
scientific and technical information in this news release.
Standard QA/QC sampling procedures are maintained by SGS and Blue Coast to ensure accurate and
representative testing.
About Treaty Creek
The Treaty Creek Project hosts the Goldstorm Deposit, comprising a large gold-copper porphyry
system, as well as several other mineralized zones. As disclosed in the
"NI-43-101 Technical Report for
the Treaty Creek Project", dated April 5, 2024 prepared by Garth Kirkham Geosystems and JDS Energy
& Mining Inc., the Goldstorm Deposit has an Indicated Mineral Resource of
27.87 Moz of AuEQ grading
1.19 g/t AuEQ (21.66 Moz gold grading 0.92 g/t, 2.87Blbs copper grading 0.18 %,
128.73 Moz silver
grading 5.48 g/t) and an Inferred Mineral Resource of 6.03
Moz of AuEQ grading 1.25 g/t AuEQ (4.88
Moz gold grading 1.01g/t, 0.503
Blb copper grading 0.15 %, 28.97
Moz silver grading 6.02 g/t), with a
pit constrained cut-off of 0.7
g/t AuEQ and an underground cut-off of 0.75
g/t AuEQ. The Goldstorm
Deposit has been categorized into three dominant mineral domains and several smaller mineral
domains.
The CS-600 Domain largely consists of an intermediate intrusive stock and hosts the
majority of the copper mineralization within the Goldstorm Deposit. CS-600 has an Indicated
Mineral Resource of 15.65 Moz AuEQ grading 1.22 g/t AuEQ (9.99 Moz gold grading 0.78 g/t,
2.73 Blbs copper grading 0.31%, 73.47 Moz silver grading 5.71g/t) and an Inferred Mineral
Resource of 2.86 Moz AuEQ grading 1.20 g/t AuEQ (1.87 Moz gold grading 0.79 g/t, 0.48 Blb
copper grading 0.29%, 13.4 Moz silver grading 5.63 g/t).
The Goldstorm Deposit remains open in all
directions and requires further exploration drilling to determine the size and extent of the Deposit.
About Tudor Gold
TUDOR GOLD CORP. is a precious and base metals exploration and development company with
claims in British Columbia's Golden Triangle (Canada), an area that hosts producing and past-producing
mines and several large deposits that are approaching potential development. The 17,913-hectare
Treaty Creek project (in which TUDOR GOLD has a 60% interest) borders Seabridge Gold Inc.'s KSM
property to the southwest and borders Newmont Corporation's Brucejack property to the southeast.
ON BEHALF OF THE BOARD OF DIRECTORS OF
TUDOR GOLD CORP.
"Ken Konkin"
Ken Konkin
President and Chief Executive Officer
For further information, please visit the Company's website at
www.tudor-gold.com
or contact:
Chris Curran
Head of Corporate Development and Communications
Phone: (604) 559 8092
E-Mail:
Or
Patrick Donnelly
Vice President of Capital Markets
Phone: (604) 559 8092
E-Mail:
Neither 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.
Cautionary Statements regarding Forward-Looking Information
This news release contains "forward-looking information" within the meaning of applicable Canadian
securities legislation. "Forward-Looking information" includes, but is not limited to, statements with
respect to the activities, events or developments that the Company expects or anticipates will or may
occur in the future, including the completion and anticipated results of planned exploration activities.
Generally, but not always, forward-looking information and statements can be identified by the use of
words such as "plans", "expects", "is expected", "budget", "scheduled", "estimates", "forecasts",
"intends", "anticipates", or "believes" or the negative connotation thereof or variations of such words
and phrases or state that certain actions, events or results "may", "could", "would", "might" or "will be
taken", "occur" or "be achieved" or the negative connotation thereof.
Such forward-looking information and statements are based on numerous assumptions, including
among others, that the Company's planned exploration activities will be completed in a timely
manner. Although the assumptions made by the Company in providing forward-looking information or
making forward-looking statements are considered reasonable by management at the time, there can
be no assurance that such assumptions will prove to be accurate.
There can be no assurance that such statements will prove to be accurate and actual results and
future events could differ materially from those anticipated in such statements. Important factors that
could cause actual results to differ materially from the Company's plans or expectations include risks
relating to the actual results of current exploration activities, fluctuating gold prices, possibility of
equipment breakdowns and delays, exploration cost overruns, availability of capital and financing,
general economic, market or business conditions, regulatory changes, timeliness of government or
regulatory approvals and other risks detailed herein and from time to time in the filings made by the
Company with securities regulators.
Although the Company has attempted to identify important factors that could cause actual results to
differ materially from those contained in the forward-looking information or implied by forward-looking
information, there may be other factors that cause results not to be as anticipated, estimated or
intended. There can be no assurance that forward-looking information and statements will prove to be
accurate, as actual results and future events could differ materially from those anticipated, estimated
or intended. Accordingly, readers should not place undue reliance on forward-looking statements or
information.
The Company expressly disclaims any intention or obligation to update or revise any forward-looking
statements whether as a result of new information, future events or otherwise except as otherwise
required by applicable securities legislation.
To view the source version of this press release, please visit
https://www.newsfilecorp.com/release/249330