Northwest Copper Reports First Batch of Stardust Drilling Results from 2022 Program. Highlight is 44.20 Metres at 1.31% CuEq Including 21.10 Metres of 2.41% CuEq
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News Release
NORTHWEST COPPER REPORTS FIRST BATCH OF STARDUST DRILLING RESULTS
FROM 2022 PROGRAM. HIGHLIGHT IS 44.20 METRES AT 1.31% CUEQ INCLUDING
21.10 METRES OF 2.41% CUEQ
Vancouver, BC – November 16, 2022 – NorthWest Copper (“NorthWest” or “the Company”) (TSX-
V: NWST) (OTCQX: NWCCF) is pleased to announce the first results from the 2022 Stardust drilling
program in the 421-Canyon Creek Skarn zone. These holes were designed to increase confidence
in the hi gh-grade mineralization at NorthWest’s 100% owned Stardust deposit . Stardust is
located approximately 7 km from NorthWest’s 100% owned Kwanika deposit. Highlights from
assays include:
• DDH22-SD-478D: 44.20 metres1 of 1.31% CuEq2 from 502.00 metres
o Including 21.10 metres at 2.41% CuEq from 523.10 metres
o Including 1.55 metres at 16.64% CuEq from 542.65 metres
• DDH22-SD-476M: 75.95 metres at 0.98% CuEq from 600.45 metres
o Including 0.90 metres at 9.30% CuEq from 616.55 metres
“We are pleased to report multiple high -grade intervals from our Stardust project, one of the
highest-grade deposits in British Columbia ” said President and CEO Peter Bell. “ These strong
intervals are a reminder of the exceptional copper and gold grades tha t characterize Stardust.
This is our first batch of results from Stardust in 2022 and we look forward to updating the market
when we receive the rest of the assays.”
Drill Results Discussion
Drilling at Stardust for the 2022 season focused on conversion of inferred resources to higher
classifications and, to a lesser extent, on expansion of the resource around the 421-Canyon Creek
Skarn zone (Figure 1 & Figure 2). Stardust is the high-grade carbonate replacement deposit (CRD)
that is located approximately 7 km from the Kwanika deposit. Drill results reported to date have
all been from Kwanika. The combination of Stardust and Kwanika is the s ubject of our PEA
(preliminary economic assessment) which is in progress and expected to be completed in Q4
2022.
1 True widths of the reported mineralized intervals have not been determined.
2 Assumptions used in USD for the copper equivalent calculation ( CuEq) were metal prices of $3.50/lb. Copper, $1,650/oz Gold, $21.50/oz Silver, and
recovery is assumed to be 9 4% for copper, 94% for gold and 86% for silver. The following equation was used to calculate copper equivalence: CuEq =
Copper (%) + (Gold (g/t) x 0.6875) + (Silver (g/t) x 0.0082)
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South 421-Canyon Creek Drilling
Drillholes DDH22-SD-476M, 478D, 480M, and 483D were drilled from the same pad. Drill holes
478M and 480D are on the same section (Figure 3), with 476M and 483D drilled on another
section approximately 25 m to the south (Figure 4).
DDH-18-SD-478D and 480 M returned long mineralized intersections of 44.20 metres at 1.31%
CuEq and 33.55 metres of 0.91% CuEq , respectively. These intervals include very high -grade
intervals of 16.64% CuEq over 1.55 metres from 542.65 metres depth in hole 478D and 11.20
metres at 2.19% CuEq from 463.80 metres in hole 480M (Figure 3). Mineralization in these holes
is chalcopyrite-pyrite as semi-massive sulphide replacements of garnet skarn or, more commonly
and accompanied by calcite and magnetite/hematite , as infill of vugs and interstices in garnet
skarn.
Drill hole 476M returned a long interval with 0.98% CuEq over 75.95 metres starting at 600.45
metres downhole. This interval includes a very high -grade 9.30% CuEq over 0.90 metres zone
starting at 616.55 metres downhole and another 8.45 metre zone with 3.14% CuEq from 658.05
metres downhole (Figure 4). Drill hole 483D intersected a n interval of 10.55 metres at 0.63%
CuEq with a 0.35 metre interval of 3.99% CuEq at 445.85 metres downhole. The styles of
chalcopyrite mineralization in 476M and 483D are similar to those described for holes 478D and
480M.
All drill holes on these section s collared into the Glover stock intrusive complex and then pass
down hole through clastic sedimentary rocks in the hanging wall to the skarn. This is followed by
a long intersection of strong garnet -pyroxene skarn alteration that replaced carbonate rocks .
Mineralization increase s as drilling approaches the contact between the clastic sedimentary
rocks and the carbonates, which occurs and is commonly concealed within, the skarn alteration.
The high-grade mineralization occurs within the skarn-altered carbonate protolith.
North 421-Canyon Creek Drilling
Drill holes DDH22 -SD-475M, 477D, 479M and 481D were drill ed on the same section and from
the same pad using directional drilling (Figure 5). All holes encountered mineralization with drill
hole DDH22-SD-479M providing the highlights on this section with an interval of 46.05 metres at
1.40% CuEq including 6.40 metres at 3.05% CuEq (Figure 5). Mineralization occurs as
chalcopyrite infill of vugs and interstices, along with calcite and magnetite/hematite, within
massive garnet alteration , or as massive to semi massive sulphide veins. These mineralized
intervals occur in intense skarn alteration of the carbonate protolith , below its hanging wall
contact with the overlying clastic sedimentary rocks.
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Table 1: Drill Results from This News Release
Hole From
(m)
To
(m)
Interval
(m)3
Cu
(PCT)
Au
(g/t)
Ag
(g/t)
CuEq4
(PCT)
DDH22-SD-475M 579.00 582.20 3.20 1.02 0.56 15.2 1.53
incl 580.05 581.10 1.05 2.36 1.19 35.1 3.46
DDH22-SD-476M 600.45 676.40 75.95 0.55 0.50 10.9 0.98
incl. 616.55 617.45 0.90 6.24 3.11 113.0 9.30
also incl. 658.05 666.50 8.45 1.62 1.67 46.3 3.14
DDH22-SD-477D 560.85 580.50 19.65 0.32 0.29 6.1 0.57
incl. 577.70 580.50 2.80 1.15 0.71 16.7 1.78
also 620.00 651.80 31.80 0.63 0.44 12.4 1.03
also incl. 647.20 651.80 4.60 3.27 2.34 64.5 5.41
DDH22-SD-478D 502.00 546.20 44.20 0.84 0.51 13.7 1.31
incl. 523.10 544.20 21.10 1.54 0.96 26.1 2.41
incl. incl. 542.65 544.20 1.55 10.91 6.07 189.9 16.64
DDH22-SD-479M 602.20 629.10 26.90 0.21 0.25 3.7 0.41
also 661.40 707.45 46.05 0.80 0.71 14.4 1.40
also incl 695.00 701.40 6.40 1.63 1.67 33.4 3.05
DDH22-SD-480M 444.75 478.30 33.55 0.56 0.33 14.2 0.91
incl. 463.80 475.00 11.20 1.37 0.75 36.8 2.19
DDH22-SD-481D 703.45 722.35 18.90 0.63 0.63 9.7 1.14
incl. 718.50 722.35 3.85 1.71 1.53 27.4 2.98
DDH22-SD-482 Pending
DDH22-SD-483D 440.60 451.15 10.55 0.43 0.23 4.6 0.63
incl. 445.85 446.20 0.35 2.97 1.21 22.5 3.99
DDH22-SD-484 Pending
Quality Assurance / Quality Control
Drilling completed at Stardust in 2022 was supervised by on -site NorthWest personnel who
collected and tracked samples and implemented a full QA/QC program using blanks, standards
and duplicates to monitor analytical accuracy and precision. The samples were sealed on site and
shipped to AGAT Laboratories (AGAT) in Calgary, Alberta. AGAT’s quality control system complies
with global certifications for Quality ISO 9001:2015. Core samples were analyzed using a
combination of AGAT’s 201 -071 process for low -level concentrations (ICP -MS/4 Acid digestion)
and the 201-079 process for higher-level concentrations (Sodium Peroxide Fusion/ICP-OES). Gold
assaying was completed with 202-055, a 30-gram fire assay with ICP finish. Base metal over limits
were finalized with Fusion/ICP-OES method.
3 True widths of the reported mineralized intervals have not been determined .
4 Assumptions used in USD for the copper equivalent calculation (CuEq) were metal prices of $3.50/lb. Copper, $1,650/oz Gold, $ 21.50/oz Silver, and
recovery is assumed to be 94% for copper, and 94% for gold and 86% for silver. The following equation was used to calculate copper equivalence: CuEq
= Copper (%) + (Gold (g/t) x 0.6875) + (Silver (g/t) x 0.0082)
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Technical aspects of this news release have been reviewed, verified, and approved by Tyler
Caswell, P.Geo., Principal Geologist of NorthWest, who is a qualified person as defined by
National Instrument 43-101 – Standards of Disclosure for Minerals Projects.
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Figure 1: Drillhole Locations with block model 5 and topography.
5 See NI 43-101 technical report titled “NI 43-101 Technical Report for the Stardust Project Updated Mineral Resource Estimate” dated May 17, 2021,
filed under the Company’s SEDAR profile at www.sedar.com.
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Figure 2: Long Section showing block model 6 and intercept locations.
6 See NI 43-101 technical report titled “NI 43-101 Technical Report for the Stardust Project Updated Mineral Resource Estimate ” dated May 17, 2021,
filed under the Company’s SEDAR profile at www.sedar.com.
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Figure 3: Cross Section
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Figure 4: Cross Section