Drilling Underway at Pacific Ridge's Kliyul Copper-Gold Project
Drilling Underway at Pacific Ridge's Kliyul
Copper-Gold Project
Vancouver, British Columbia--(Newsfile Corp. - August 27, 2025) - Pacific Ridge Exploration Ltd.
(TSXV: PEX) (OTCQB: PEXZF) (FSE: PQW) ("Pacific Ridge" or the "Company") is pleased to
announce that drilling is underway at the Company's 100% owned Kliyul copper-gold project ("Kliyul" or
the "Project"), located in B.C.'s prolific Quesnel terrane in north-central British Columbia (see Figure 1).
Highlights:
The planned 2,500 m drill program will be focused on infill and resource expansion drilling at the
Kliyul Main Zone ("KMZ"), just one target area at Kliyul (see Figure 2).
KMZ hosts 334.1 million tonnes ("Mt") grading 0.33% copper equivalent ("CuEq"), 0.15% copper,
0.26 g/t gold, and 0.95 g/t silver, in the Inferred Mineral Resource category (see Table 1 and news
release dated August 6, 2025).
KMZ contains 2.42 billion pounds CuEq which includes 1.11 billion pounds of copper, 2.74 million
ounces of gold and 10.22 million ounces of silver in the Inferred Mineral Resource category (see
Table 1 and news release dated August 6, 2025).
Mineralization at KMZ remains open for expansion within and beyond the resource reporting shell
used to restrict the resource model (see Figure 3).
"We're very excited to return to Kliyul,"
said Blaine Monaghan, President & CEO of Pacific Ridge
Exploration Ltd.
"Having just published an initial mineral resource estimate for KMZ, we are keen to
restart drilling as it remains open for expansion within and beyond the pit shell."
Figure 1:
Location of Kliyul and Pacific Ridge's Other Projects
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Figure 2:
Kliyul Target Areas
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Figure 3:
KMZ Pit Shell and Unconstrained Block Model at > 0.20% CuEq
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Table 1
KMZ Mineral Resource Estimate (CuEq)
Cutoff
(CuEq%)
Tonnes
CuEq%
Cu%
Au g/t
Ag g/t
CuEq Mlbs
Cu Mlbs
Au Oz
Ag Oz
0.15
383,300,000
0.31
0.14
0.24
0.91
2,615
1,212
2,920,000
11,270,000
0.20
334,100,000
0.33
0.15
0.26
0.95
2,422
1,110
2,740,000
10,220,000
0.25
239,200,000
0.37
0.16
0.30
1.04
1,950
861
2,280,000
7,980,000
Notes for Table 1
1
.
The effective date of the Mineral Resource estimate is July 31, 2025.
2
.
The Mineral Resource was estimated using the Canadian Institute of Mining, Metallurgy and Petroleum(CIM), Definition Standards for
Mineral Resources and Reserves, as prepared by the CIM Standing Committee and adopted by CIM Council.
3
.
There has been no metallurgical testing on Kliyul mineralization. The Company estimates copper recoveries (CuR) of 80%, gold
recoveries (AuR) of 65%, and silver recoveries (AgR) of 65% based on the reported recoveries from Mount Milligan.
4
.
The mineral resource is constrained within a pit shell using metal recoveries of Cu 80%, Au 65% and Ag 65%, an exchange rate of 1.30
CAD:USD, mining cost of C$3.5/t, process cost of C$7.0/t, G&A costs of C$3.0/t,
pit slopes of 45 degrees and metal prices of
$Cu =
US$4.60/lb, $Au = US$2,600/oz., Ag = US$30.00/oz. A fixed bulk density of 2.77 t/m3 was used for the estimation of tonnes.
5
.
CuEq = Cu% + (0.6697*Au g/t) + (0.0077*Ag g/t).
6
.
Factors: 22.0462 = Cu% to lbs per tonne, 0.032151 = Au g/t to troy oz per tonne, and 0.032151 = Ag g/t to troy oz per tonne.
7
.
The CIM definitions were followed for the classification of Inferred Mineral Resources. inferred blocks were assigned for blocks with one
drill hole within 150 m.
8
.
Mineral Resources are not Mineral Reserves do not have demonstrated economic viability. There is no certainty that all or any part of the
mineral resources will be converted into mineral reserves in the future. The MRE may be materially affected by considerations including,
but not limited to, permitting, legal, sociopolitical, environmental issues, market conditions or other factors.
9
.
All figures are rounded to reflect the relative accuracy of the estimate. Totals may not sum due to rounding as required by reporting
guidelines.
Kliyul Highlights
100% owned by Pacific Ridge, the Company has invested more than ~$14.0 million and drilled
more than 19,000 m at Kliyul since 2020.
Kliyul is over 90 km
2
in size and is in the prolific Quesnel terrane close to existing infrastructure, ~8
km to the Omineca Resource Road and a 230 kV high-voltage power line.
A six-kilometre long porphyry copper-gold trend, comprised of favourable geology, geochemistry,
alteration, and geophysics, exists at Kliyul but KMZ has been the focus since 2021.
Drilling by Pacific Ridge has increased the mineralized extents of KMZ tenfold. Pre-2021, the
mineralized extents measured ~350 m E-W x ~150 m N-S x ~400 m vertical depth. After the last
round of drilling, the known mineralized extents measure ~760 m E-W x ~600 m N-S x ~650 m
vertical depth. KMZ remains open to the North, West, East, Southeast, and at depth.
The best drilling result in 2021 was 316.7 m of 0.79% CuEq* or 1.17 g/t gold equivalent ("AuEq")**
(0.30% copper, 0.70 g/t gold and 2.17 g/t silver) within 566.7 m of 0.51% CuEq* or 0.75 g/t AuEq**
(0.20% copper, 0.44 g/t gold and 1.39 g/t silver) from KLI-21-037 (see news release dated
January 31, 2022).
The best drilling result in 2022 was 328.0 m of 0.64% CuEq* or 0.95 g/t AuEq** (0.25% copper
and 0.57 g/t gold) within 526 m of 0.49% CuEq* or 0.74 g/t AuEq** (0.25% copper, 0.57 g/t gold
and 1.25 g/t silver) from KLI-22-050 (see news release January 18, 2023).
The best drilling result in 2023 was 305.5 m of 0.59% CuEq* or 0.87 g/t AuEq** (0.23% copper,
0.51 g/t gold and 1.22 g/t Ag) within 540.3 m of 0.44% CuEq* or 0.65 g/t AuEq** (0.19% copper,
0.36 g/t gold and 0.65 g/t silver) from KLI-23-054 (see news release August 23, 2023).
Drill hole KLI-23-069, the last hole of the 2023 drilling program, returned 45.0 m of 0.58% CuEq* or
0.86 g/t AuEq** (0.38% copper, 0.28 g/t gold, and 2.20 g/t silver) within 570.0 m of 0.27% CuEq*
or 0.40 g/t AuEq** (0.14% copper, 0.18 g/t gold, and 0.99 g/t silver)(see news release dated
January 9, 2024). The 45 m interval, at 584 m downhole depth, is the deepest mineralized interval
ever encountered at Kliyul and provides a northward and down-plunge vector for a higher-grade
porphyry centre at KMZ.
Results of a 2024 ZTEM survey suggest that most of the KMZ porphyry system remains hidden and
untested to the north.
About Pacific Ridge
A Fiore Group company, Pacific Ridge's goal is to become British Columbia's leading copper
exploration company. The Kliyul copper-gold project, located in the prolific Quesnel terrane close to
existing infrastructure, is the Company's flagship project. In addition to Kliyul, Pacific Ridge's project
portfolio includes the RDP copper-gold project, the Chuchi copper-gold project, the Onjo copper-gold
project, and the Redton copper-gold project, all located in B.C. The Company would like to acknowledge
that its B.C. projects are in the traditional, ancestral and unceded territories of the Gitxsan Nation,
McLeod Lake Indian Band, Nak'azdli Whut'en, Takla Nation, and Tsay Keh Dene Nation.
On behalf of the Board of Directors,
"Blaine Monaghan"
Blaine Monaghan
President & CEO
Pacific Ridge Exploration Ltd.
Investor Relations:
Tel: (604) 687-4951
Email:
Website:
www.pacificridgeexploration.com
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*CuEq = ((Cu%) x $Cu x 22.0462) + (Au(g/t) x AuR/CuR x $Au x 0.032151) + (Ag(g/t) x AgR/CuR x $Ag x 0.032151)) / ($Cu x 22.0462).
**AuEq = ((Au(g/t) x $Au x 0.032151) + ((Cu%) x CuR/AuR x $Cu x 22.0462) + (Ag(g/t) x AgR/CuR x $Ag x 0.032151)) / ($Au x 0.032151).
Commodity prices:
$Cu = US$3.25/lb, $Au = US$1,800/oz., and Ag = US$20.00/oz.
There has been no metallurgical testing on Kliyul mineralization.
The Company estimates copper recoveries (CuR) of 84%, gold recoveries (AuR) of 70%, and silver recoveries (AgR) of 65% based on average
recoveries from Kemess Underground, Mount Milligan, and Red Chris.
Factors: 22.0462 = Cu% to lbs per tonne, 0.032151 = Au g/t to troy oz per tonne, and 0.032151 = Ag g/t to troy oz per tonne.
The technical information contained within this News Release has been prepared under the
supervision of, and reviewed and approved by. Danette Schwab, P.Geo., Vice President Exploration of
the Company, and a Qualified Person as defined by National Instrument 43-101 - Standards of
Disclosure for Mineral Projects.
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 release includes certain statements that may be deemed
"forward-looking statements". All statements in this release, other than statements of historical facts,
which address exploration drilling and other activities and events or developments that Pacific Ridge
Exploration Ltd. ("Pacific Ridge") expects to occur, are forward-looking statements. Forward-looking
statements in this news release include the planned 2,500 m drill program at Kliyul. Although Pacific
Ridge believes the expectations expressed in such forward-looking statements are based on
reasonable assumptions, such statements are not guarantees of future performance and actual
results or developments may differ materially from those forward-looking statements. Factors that
could cause actual results to differ materially from those in forward looking statements include market
prices, exploration successes, and continued availability of capital and financing and general
economic, market or business conditions. These statements are based on a number of assumptions
including, among other things, assumptions regarding general business and economic conditions,
that one of the options will be exercised, the ability of Pacific Ridge and other parties to satisfy stock
exchange and other regulatory requirements in a timely manner, the availability of financing for
Pacific Ridge's proposed programs on reasonable terms, and the ability of third party service
providers to deliver services in a timely manner. Investors are cautioned that any such statements are
not guarantees of future performance and actual results or developments may differ materially from
those projected in the forward-looking statements. Pacific Ridge does not assume any obligation to
update or revise its forward-looking statements, whether because of new information, future events or
otherwise, except as required by applicable law.
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