Ophir Expands High-Grade Cesium Zone at Depth with 0.92% Cs2O over 1.0 m at the HW3 Pegmatite, Pilipas Property, Quebec
Ophir Expands High-Grade Cesium Zone at
Depth with 0.92% Cs2O over 1.0 m at the HW3
Pegmatite, Pilipas Property, Quebec
Vancouver, British Columbia--(Newsfile Corp. - August 27, 2025) -
Ophir Metals Corp.
(TSXV: OPHR)
(OTCQB: OPHRF) (FSE: 80M)
("
Ophir
" or the "
Company
") is pleased to announce assay results for
16 drillholes from the 2025 drill program on the Pilipas Lithium Property (the "Property" or "Project"),
located in the Eeyou Istchee James Bay region, Quebec. The Project is located proximal to existing
hydroelectric power that flanks the Property to the east, and an all-season road that crosses the western
side of the Property.
"
Drilling at HW3 has confirmed cesium mineralization grading nearly 1% over one meter in the
subsurface. Combined with the
~11 m by 4 m
zone of elevated cesium values returned from surficial
channel sampling at HW3 (
See news release dated February 3, 2025
), and the lithium-bearing
pegmatite identified at HW1 that returned
53.2 m at 1.22% Li
2
O
from drilling in 2024 (
See news
release dated December 11, 2024
), these results highlight the strong multi-commodity potential at
Pilipas. Few pegmatite fields worldwide demonstrate both cesium and lithium mineralization, and we
believe this provides a strong foundation for follow-up exploration
," comments Shawn Westcott, CEO
of Ophir.
Highlights:
2.5 m at 0.41% Cs
2
O,
including
1.0 m at
0.92% Cs
2
O
from drillhole PLP25-027
0.5 m at 0.26% Cs
2
O
within pegmatite interval in drillhole PLP25-028
1.5 m at 0.46% Cs
2
O and 1.4 m at 0.21% Cs
2
O
within basalt samples on margin of pegmatite
dykes from drillhole PLP25-025 and PLP25-037, respectively
Four samples returned >500 ppm Ta
O
, including a peak of
1,248 ppm Ta
O
over 0.5 m
,
from within larger interval of 375 ppm Ta
2
O
5
over 3.8 m in drillhole PLP25-032
The 2025 drill program concluded in mid-June with the completion of 16 drill holes totaling 936 m at the
HW3 Cesium Pegmatite (Table 2). The analytical results reported herein represent all drill holes
completed as part of the exploration program. Drillholes were planned on a tight grid spacing targeting
the surface expression at depth and along strike.
Drilling in 2025 confirmed that the HW3 Pegmatites are present to moderate depth and capable of
hosting strong cesium mineralization, as demonstrated by the intercept of 0.92% Cs
O over 1.0 m
(Figure 1). The cesium enrichment is not limited to a single intercept, with sixteen separate samples
from 2025 drillholes returning values >0.06% Cs
O. Intervals such as 0.26% Cs
O over 0.5 m and 0.21%
Cs
O over 1.42 m demonstrate that the system is highly anomalous in cesium mineralization across
multiple horizons.
Strongly anomalous to high-grade tantalum results were also returned from the pegmatites at HW3, with
thirty-one (31) samples returning >50 ppm Ta
2
O
5,
the highest of which returned
1,248 ppm Ta
O
over
0.5 m (Table 1). Additional intervals of 328 ppm Ta
2
O
5
over 4.0 m and 375 ppm Ta
2
O
5
over 3.8 m were
returned from drillholes PLP25-037 and PLP25-032, respectively. These results highlight the multi-
commodity potential of the system, extending beyond cesium and lithium.
Although pollucite in drill core has yet to be confirmed by X-ray diffraction (XRD), visual logging noted
minerals consistent with pollucite in one interval of PLP25-027 (Figure 1), coincident with elevated
cesium grades. This zone is consistent with the
pollucite-bearing material confirmed by XRD in
2024 surface channel samples
from the same outcrop area, supporting continuity of cesium
mineralization from surface into the subsurface. Pollucite, the principal mineralized material cesium, is
globally rare, and its occurrence at HW3 is significant. The 2025 drill program results demonstrate that
the pegmatites at Pilipas are highly fractionated, consistent with the processes that concentrate cesium,
lithium, and tantalum. Much of the 4.2 km corridor between HW1 and HW3 showings has limited outcrop
exposure,
providing scope for additional discoveries along the pegmatite trend.
Additionally, other areas of the Pilipas Property remain highly prospective for hosting Lithium-Cesium-
Tantalum ("LCT") mineralization for follow-up work, as indicated by strong geochemical fertility ratios
obtained in pegmatite grab samples collected in 2024 (
See news release dated May 21, 2025
).
The
geochemical ratios of K/Rb, Nb/Ta, Zr/Hf, and Mg/Li are commonly used to assess the potential for
pegmatites to host LCT mineralization. Fertile pegmatites (and their source melts) typically have ratios of
K/Rb < 150, Nb/Ta < 5, Zr/Hf < 18, and Mg/Li < 10. The more of these indices that are met, the higher the
likelihood that a given pegmatite could host LCT mineralization (See Figure 2).
Figure 1: Pegmatite in drillhole PLP25-027 which returned 1.0 m at 0.92% Cs
2
O (red box)
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Figure 2: Fertility Criteria met by 2024 Surface Pegmatite and Intrusive Grab Samples
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Table 1: Summary of Analytical Results of 2025 Pilipas Drill Program
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Table 2: 2025 Drillhole Locations and Attributes
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Quality Assurance / Quality Control
Drill core was saw-cut with half-core sent for geochemical analysis and half-core remaining in the box
onsite. All core samples were securely transported by field staff to SGS Canada's laboratory in
Radisson, QC for standard sample preparation (code PRP90) which includes drying at 105°C, crush to
90% passing 2 mm, riffle split 250 g and pulverize 85% passing 75 microns. The pulps were then
shipped to SGS Canada's laboratory in Burnaby, BC where they were subsequently analyzed for multi-
element (including Li, Cs and Ta) using sodium peroxide fusion with ICP-AES/MS finish (code
GE_ICM91A50). Gold analysis was performed using Au by fire assay (Code GE_FAA30V5). A Quality
Assurance/Quality Control protocol was incorporated into the program and included the insertion of
certified reference materials and silica blanks at a rate of approximately 5% and 5%, respectively.
Additional analysis of pulp-split and reject-split sample duplicates was also completed at a rate of
approximately 5% to assess analytical precision at different stages. SGS Canada is independent of the
Company.
Qualified Person
The technical content of this news release has been reviewed and approved by Kaylyn Niemetz, P.Geo.,
Geologist for Dahrouge Geological Consulting Ltd., a member in good standing of the Ordre des
géologues du Québec (OGQ; permit no. 2418) and a Qualified Person under NI 43-101 Standards of
Disclosure for Mineral Projects.
Ms. Niemetz has verified all scientific and technical data disclosed in this news release including the
sampling and QA/QC results, and certified analytical data underlying the technical information disclosed.
Ms. Niemetz verified the data disclosed (or underlying the information disclosed) in this news release by
reviewing the assay data; and checking the performance of blank samples and certified reference
materials. Ms. Niemetz detected no significant QA/QC issues during review of the data and noted no
errors or omissions during the data verification process. The Company and Ms. Niemetz do not
recognize any factors of sampling that could materially affect the accuracy or reliability of the data
disclosed in this news release.
About the Pilipas Lithium Project
In December 2023, the Company entered into an option agreement with Azimut Exploration Inc (TSX.V:
AZM) (OTCQX: AZMTF) to earn 70% interest in the Pilipas Property consisting of 135 claims totaling
7,100 ha situated within the La Grande Subprovince (Archean Superior Province). It is primarily
underlain by volcano-sedimentary rocks (Greenstone) of the Lower Eastmain Greenstone Belt:
conglomerate, sandstone, basalts and felsic to intermediate tuffs. Two regional NW-SE dextral faults
transect the southwestern and northeastern parts of the Property.
About the Company
Ophir Metals Corp. is a diversified mineral exploration company focused on the exploration and
development of the Pilipas Lithium Property in James Bay, Quebec, and the past-producing Breccia
gold property located in Lemhi County, Idaho.
Ophir holds an option to earn a 70% interest in the Pilipas property over a three-year period from Azimut
Exploration Inc. and an option to earn a 100-per-cent interest in the Breccia property.
On behalf of the Board of Directors
"Shawn Westcott"
Ophir Metals Corp.
For further information, please contact:
Shawn Westcott, CEO
Phone 1 (604) 365 6681
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in
policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this
release.
Cautionary Note
The information contained herein contains "forward-looking statements" and "forward-looking
information" (collectively referred to as "forward-looking statements") within the meaning of applicable
securities legislation. Forward-looking statements relate to information that is based on assumptions of
management, forecasts of future results, and estimates of amounts not yet determinable and include
statements in this press release related to the exploration and discovery potential of the Property, plans
for a future exploration program on the Property, the strong lithium pegmatite exploration potential on the
Property, the strong potential of the Pilipas Property, the interpretation of exploration and sampling
results, the use case for Cesium, potential targets on the Property and the Company's future plans with
respect to the Property. Any statements that express predictions, expectations, beliefs, plans,
projections, objectives, assumptions or future events or performance are not statements of historical fact
and may be "forward-looking statements." Forward-looking statements are subject to a variety of risks
and uncertainties which could cause actual events or results to differ from those reflected in the forward-
looking statements, including, without limitation: risk related to the failure to obtain adequate financing on
a timely basis and on acceptable terms; risks related to the outcome of legal proceedings; political and
regulatory risks associated with mining and exploration; risks related to the maintenance of stock
exchange listings; risks related to environmental regulation and liability; the potential for delays in
exploration or development activities or the completion of feasibility studies; the uncertainty of
profitability; risks and uncertainties relating to the interpretation of drill results, the geology, grade and
continuity of mineral deposits; risks related to the inherent uncertainty of production and cost estimates
and the potential for unexpected costs and expenses; results of technical reports, and the possibility that
future exploration, development or mining results will not be consistent with the Company's expectations;
risks related to commodity price fluctuations; and other risks and uncertainties related to the Company's
prospects, properties and business detailed elsewhere in the Company's disclosure record. Should one
or more of these risks and uncertainties materialize, or should underlying assumptions prove incorrect,
actual results may vary materially from those described in forward-looking statements. Investors are
cautioned against attributing undue certainty to forward-looking statements. These forward-looking
statements are made as of the date hereof and the Company does not assume any obligation to update
or revise them to reflect new events or circumstances, except in accordance with applicable securities
laws. Actual events or results could differ materially from the Company's expectations or projections.
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