Inspiration Mining Reports Assay Results from Maiden Diamond Drill Program at Rottenstone North Gold-Copper Project
Inspiration Mining Reports Assay Results from Maiden Diamond
Drill Program at Rottenstone North Gold-Copper Project
Vancouver, British Columbia – August 28, 2026 - Inspiration Mining Corp. (“Inspiration”
or the “Company”) (CSE: ISP) (ISPNF–USA) (WKN: A40GPX) reports drill core assay results
from its maiden diamond drilling program on its 100% -owned Rottenstone Northwest Gold -
Copper project (the “ Project”) in Northern Saskatchewan ( see Company news releases May 1,
2026 and July 7, 2026).
The drilling program comprised 608 metres in four holes drilled between May 12 and May 26,
2026. Three holes were completed to target depth. A fourth hole was abandoned in 38 metres of
overburden without reaching bedrock after helicopter support became una vailable. Ninety -four
core samples were submitted to PMC Labs of Maple Ridge, British Columbia (an independent
analytical laboratory) for sample preparation and geochemical analysis.
All 94 core samples returned background values for copper, zinc, lead and silver, and all 92 samples
with a gold determination returned background gold. No interval meets a conventional reporting
cut-off and the Company is not reporting a mineral discovery . The full results, the geology
encountered and the Company’s interpretation are set out below.
Charles Desjardins, CEO of Inspiration Mining comments that ‘We are very pleased with the
results achieved to date. These results are assisting us in guiding the next phase of work. The
price of gold and copper have been trending up and we are optimistic this trend will continue.’
Highlights
• 608 metres drilled in four holes; three holes completed; one abandoned in overburden.
• 94 core samples analyzed, together with 11 quality control samples, an insertion rate of
10.5%.
• Best gold result is 0.276 g/t Au over 1.00 metre in hole RN26 -001 from 22.30 metres,
within a broader 8.73 metre interval averaging 0.045 g/t Au from 16.63 metres.
• Best silver result is 3.65 g/t Ag over 1.00 metre in hole RN26-001 from 107.39 metres.
• Base metals were uniformly background. The highest copper returned by any core sample
was 243 ppm Cu (0.024% Cu), and three ultramafic units in hole RN26 -001 returned no
nickel or cobalt tenor, with nickel across the program peaking at 28.3 ppm Ni.
Drilling Program Summary
Table 1. Drill hole collar summary from 2026 program (NAD83 UTM Zone 13V).
Drill Hole UTMX (mE) UTMY (mN) Azimuth (°) Dip (°) *Length (m) No. Core Samples
RN26-001 486539 6211572 135 –50 302 59
RN26-002 484445 6210942 330 –50 182 25
RN26-003 490559 6216166 300 –75 86 10
RN26-004 — — — — 38 0
Total: 608 94
Assay Results
Every interval returning gold above 0.025 g/t Au or silver above 1.0 g/t Ag is set out in Table 2.
These are anomalous values only. No interval in Table 2 meets a cut-off grade that would support
the reporting of a significant intercept.
Table 2. Gold and silver anomalous intervals, length -weighted composites. All intervals returning gold
above 0.025 g/t Au or silver above 1.0 g/t Ag are shown.
Hole From (m) To (m) Length (m) Au (g/t) Ag (g/t)
RN26-001 4.00 5.00 1.00 0.030 <0.5
RN26-001 16.63 25.36 8.73 0.045 <0.5
including 20.30 24.30 4.00 0.084 <0.5
including 21.30 23.30 2.00 0.156 <0.5
including 22.30 23.30 1.00 0.276 <0.5
RN26-001 48.80 49.80 1.00 0.038 <0.5
RN26-001 101.78 103.26 1.48 0.028 <0.5
RN26-001 107.39 108.39 1.00 <0.015 3.65
RN26-001 126.00 127.00 1.00 0.038 <0.5
RN26-001 130.00 131.00 1.00 0.035 <0.5
RN26-001 188.00 190.00 2.00 0.026 <0.5
In Table 2, composites are length -weighted over contiguous sampled intervals with no internal
gaps. Values below detection are set at half the detection limit for weighting; where every sample
in a composite is below detection, the detection limit is shown. Detection limits are 0.015 g/t Au
and 0.50 g/t Ag. Intervals are downhole core lengths and true widths are not known.
Base metals were uniformly background across the program and no base metal interval is reported.
The highest base metal values returned by any single core sample were 243 ppm Cu (0.024% Cu),
240 ppm Zn, 30.4 ppm Pb, and 28.3 ppm Ni, against a median copper of 21 ppm Cu. The complete
multi-element dataset for all 94 core samples, together with the quality control results, is available
from the Company on request.
Geology
The three completed holes intersected a granodiorite -dominated gneiss package with intercalated
pelitic and psammopelitic gneiss, tonalite and granodiorite, consistent with the amphibolite-facies
supracrustal and intrusive rocks mapped regionally in the La Ronge Domain of the Trans-Hudson
Orogen.
RN26-001 collared into intercalated pelitic gneiss and tonalite and passed through a mafic to
gabbroic unit between 61.5 and 94.7 metres. Three discrete ultramafic units were logged, at 94.7
to 96.1 metres, 189.46 to 194.58 metres and 220.4 to 225.95 metres, the thickest being 5.55 metres.
Thin ult ramafic slivers were logged within the granodiorite gneiss at various depths to 260.19
metres. Sulphides were sparse throughout, mostly 1 to 3% disseminated and interstitial pyrite, with
trace chalcopyrite, pyrrhotite and pentlandite logged over 21.30 to 2 2.30 metres and again over
28.17 to 29.00 metres. Possible sphalerite was logged at 133.35 to 134.00 and 137.31 to 138.31
metres, and interstitial magnetite through the mafic unit from 63 to 94.7 metres.
The 21.30 to 24.30 metre zone carries the program’s best gold (0.276 g/t over 1.00 metre at 22.30
metres), its best copper (243 ppm over 1.00 metre at 21.30 metres) and its highest sulphur (2.86%
at 23.30 metres). It is the only place in the program where a coherent gold -copper-sulphur
association was observed.
The ultramafic units returned no nickel or cobalt tenor. Nickel across the program peaked at 28.3
ppm and cobalt at 4.6 ppm. On the evidence of these three holes, the ultramafic rocks at the collar
locations tested do not carry the sulphide nickel signatur e of the historic Rottenstone Ni -Cu-PGE
deposit to the south.
RN26-002 intersected granodiorite gneiss with intercalated pelitic and psammopelitic gneiss and a
thin gabbroic unit between 138.59 and 140.80 metres. Smoky -grey and white quartz veining with
1 to 3% pyrite was logged at several depths, most notably 73 to 78 metres, 110.00 to 110.85 metres
and 163.83 to 164.00 metres. These vein sets are the closest textural analogue in the program to
the quartz-hosted style reported elsewhere in the district, but they returned no gold above 0.024 g/t.
RN26-003 was terminated at 86 metres in granodiorite and tonalite with intercalated psammopelitic
gneiss. Sulphides were limited to trace interstitial pyrite.
Interpretation and Next Steps
The program tested three widely separated targets across a large land position, with collar
separations of 2.2, 6.1 and 8.0 kilometres. The results demonstrate that the specific structures tested
are not mineralized at the depths intersected, but they do not close off the Project.
The Company’s technical team considers the following the material takeaways:
1. The targeting basis requires revalidation. The holes were sited on regional geophysics,
interpreted structural corridors and Advanced Atomic Mineral Resonance Tomography
(“AMRT”) satellite anomalies. None of the three holes intersected mineralization at the
anomaly positions. The satellite -derived targeting will be tested against the drill results
before it is used to site further holes.
2. The quartz vein sets in RN26 -002 warrant follow-up. Smoky-grey quartz veining with
pyrite is present but was intersected at low volume and, on the logs, at high angles to core
axis. Structural orientation data sufficient to determine vein attitude were not collected.
Oriented core is recommended for any follow-up.
3. The RN26-001 sulphide interval at 21 to 24 metres is the only coherent geochemical
anomaly in the program. It is near surface, weak, and one metre of 0.276 g/t gold is not
by itself material. Whether it represents the distal edge of a system or a barren sulphide
occurrence cannot be resolved from one hole.
4. Ground follow-up should precede any further drilling. Prospecting, soil geochemistry
and ground geophysics over the eastern boundary trend would materially reduce the cost
per target relative to helicopter-supported drilling.
The Company is reviewing the program results, will complete a structural re-log of the 2026 core,
and will provide an update on its 2027 exploration plans in due course. The Company has no current
commitment to a follow-up drill program at Rottenstone North.
Management cautions that past results or discoveries on properties in proximity to Inspiration may
not necessarily be indicative of the presence of mineralization on the Company’s properties.
Quality Assurance and Quality Control
Core was logged, photographed and sampled at the Company’s field facility. Sample intervals were
selected on lithology and sulphide content and range from 0.40 to 1.06 metres. Core was cut in
half, with one half submitted for analysis and one half retained.
Samples were submitted to PMC Labs of Maple Ridge, British Columbia, under job
PJ54_Jun2026_05. Multi-element analysis was by aqua regia digestion with ICP finish. Gold was
determined by photon assay with a detection limit of 0.015 g/t. Every tenth sample was also
submitted to a second, independent laboratory for a full multi-element suite including gold by fire
assay. The highest gold returned by the check assays was 0.026 g/t. Where both laboratories
quantified gold the check result was consistently the lower of the two, and the Company has raised
this with both laboratories. The two datasets agree that the program returned background gold.
Eleven quality control samples were included among 105 submissions, a rate of 10.5%. These
comprised four certified reference materials (CDN -ME-2205 and CDN -CM-44), four blanks
(CDN-BL10-T) and three field duplicates. Ten laboratory pulp duplicates and fiv e laboratory -
inserted certified reference materials were also reported.
Field and laboratory duplicates performed acceptably at the concentrations encountered. Several
exceptions are noted on the control samples. One blank returned 154 ppm zinc against a certified
47 ppm. The remaining three blanks returned zinc between 36.0 and 37.7 ppm, below the certified
window, consistent with partial zinc extraction under aqua regia. One CDN -ME-2205 insert
returned copper and lead above the certified tolerance and the second returned silver marginally
below it. Both CDN -CM-44 inserts retu rned copper above the upper reporting limit of the ICP
method and neither returned a gold value, so gold accuracy is unassessed on those two inserts. The
Company has requested over-limit re-assays and a laboratory review of the affected batch. Given
that every core sample in the program returned background values, these exceptions do not affect
the results reported above.
National Instrument 43-101 Disclosure
Dr. Scott Jobin -Bevans, P.Geo. (APEGS No. 82498; PGO No. 0183), an independent adviser to
the Company, is a qualified person as defined by NI 43 -101, Standards of Disclosure for Mineral
Projects. Dr. Jobin-Bevans has reviewed and approved the technical content in this news release.
About Inspiration Mining Corp.
Inspiration Mining Corp. is engaged in the business of mineral exploration and the acquisition of
mineral property assets in Canada. Its objective is to locate and develop properties of merit and to
conduct exploration on the Company’s properties. For more information, please refer to the
Company’s information available on SEDAR+ (www.sedarplus.ca).
On Behalf of the Board of Directors
Charles Desjardins
CEO, President and Director
Phone: 604-808-3156
Email: [email protected]
Neither the Canadian Stock Exchange nor its Regulation Services Provider accepts responsibility for the adequacy or
accuracy of this news release.
FORWARD LOOKING STATEMENTS: This news release contains forward -looking statements, which relate to
future events or future performance and reflect management’s current expectations and assumptions. Such forward -
looking statements reflect management’s curre nt beliefs and are based on assumptions made by and information
currently available to the Company. Investors are cautioned that these forward-looking statements are neither promises
nor guarantees and are subject to risks and uncertainties that may cause future results to differ materially from those
expected. These forward-looking statements are made as of the date hereof and, except as required under applicable
securities legislation, the Company does not assume any obligation to update or revise them to reflect new events or
circumstances. All of the forward -looking statements made in this press release are qualified by these cautionary
statements and by those made in our filings with SEDAR+ in Canada (available at www.sedarplus.ca).