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Pilot Mountain - Significant Drilling Results

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Pilot Mountain drill results show high-grade tungsten and silver intersections across Desert Scheelite zone.

  • Drillholes completed 51
  • PM24-034 best interval tungsten 1.08% WO3 over 5.3m
  • PM24-034 best interval silver 434 g/t Ag
  • PM24-038 best silver result 355 g/t Ag (two results)
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Guardian Metal Resources plc (LON:GMET, OTCQX:GMTLF), a strategic mineral exploration and development company focused in Nevada, USA, is pleased to announce further drillhole assay results from the Company's ongoing drilling campaign at its 100% owned Pilot Mountain tungsten Project ("Pilot Mountain" or the "Project") located in Nevada, USA.

Laboratory assay results from drill core samples have been received from the next batch of drillholes at the Desert Scheelite zone covering PM24-029 to PM24-039 (Table 1) with some further very high-grade tungsten and silver results being intersected (Table 2). To date, 51 drillholes have been completed.

The final planned drillholes into Desert Scheelite will be completed in the following weeks following which attention will be turned to geotechnical drilling to support the planned pre-feasibility study. The Company is also finalising the first ever geological model for the Gunmetal zone with drillholes to planned thereafter. Guardian has also received a Notice Level permit which allows for the excavation of 20 drill pads at the Project's 'Garnet' tungsten-copper-silver-zinc zone. Finally, preliminary drill planning is underway to target the newly discovered mineralised copper breccia zone within the Porphyry South target area located immediately south of Desert Scheelite.

Oliver Friesen, CEO of Guardian Metal, commented:

"As the need for a domestic U.S. mined source of tungsten continues to accelerate, we are pleased to able to produce another positive set of drilling results from the ongoing Pilot Mountain drilling campaign.

"Our Nevada based operating team is working hard to complete the final few Desert Scheelite drillholes, following the completion of which, they will commence work on the geotechnical drillholes to support the Project's pre-feasibility study. Work is also being progressed at the Project's Garnet and Gunmetal zones which host polymetallic tungsten-silver-copper-zinc mineralisation very similar to what is found at Desert Scheelite. We consider these as being low-hanging fruit targets given the historical widely-spaced drilling which uncovered significant intervals of skarn-style polymetallic mineralisation.

"We are also pleased to report that initial preparations are now underway for the Company's first ever boots on the ground work programme at Tempiute and we anticipate providing an update to the market covering more details in short order.

"As work progresses across our Nevada-based tungsten portfolio, the push to secure domestic supplies of critical and defence-related metals only strengthens the strategic positioning of Guardian Metal Resources within the U.S. and abroad."

Desert Scheelite Highlights:

§ Of significance within this particular batch of results is the mineralised widths (>0.10% WO3) encountered throughout several holes as well as the intersection of multiple broad mineralised intervals. These include mineralised 14.2m and 7.8m intervals in PM24-029, 19.4m and 27m intervals in PM24-031, 18.5m and 18.2m intervals in PM24-038 as well as multiple others throughout the holes reported herein.

§ Some of the most significant individual silver results from the 2024/2025 drilling programme were received from this batch of results including 434g/t (PM24-034), 345g/t (PM24-038), and two 355g/t Ag results from PM24-038.

§ Drillhole PM24-034 highlight downhole intersections:

o 27.1m @ 0.46% W03, 32g/t Ag, 3,278ppm Cu & 0.71% Zn from 20.7 - 47.8m (27.1m @ 0.72% WO3Eq* or 2.35% CuEq**); including

  • 5.3m @ 1.08% W03, 130.5g/t Ag, 2,382ppm Cu & 0.32% Zn from 34.2 - 39.5 (5.3m @ 1.57% WO3Eq* or 5.15% CuEq**).

§ Drillhole PM24-038 highlight downhole intersection :

o 18.5m @ 0.28% W03, 55.1g/t Ag, 353ppm Cu & 0.26% Zn from 27 - 45.5m (18.5m @ 0.48% WO3Eq* or 1.57% CuEq**); and

o 18.2m @ 0.25% W03, 97.6g/t Ag, 802ppm Cu & 1.03% Zn from 58 - 76.2m (18.2m @ 0.66% WO3Eq* or 2.17% CuEq**); including

  • 6.0m @ 0.24% W03, 253.3g/t Ag, 205ppm Cu & 1.09% Zn from 58 - 64m (6.0m @ 1.11% WO3Eq* or 3.64% CuEq**).

§ Drillhole PM24-039 highlight downhole intersection :

o 7.5m @ 0.21% W03, 2.9g/t Ag, 125ppm Cu & 0.12% Zn from 26.5 - 34m (7.5m @ 0.23% WO3Eq* or 0.75% CuEq**); and

o 12.1m @ 0.35% W03, 57.2g/t Ag, 5103ppm Cu & 0.98% Zn from 41.8 - 53.9m (12.1m @ 0.76% WO3Eq* or 2.50% CuEq**).

*,**Copper and W03 Equivalent ("WO3Eq") are calculated using a tungsten price of US $337.5/MTU, a zinc price of US$1.263/lb, a copper price of US$4.57/lb and a silver price of US$31.12/Oz.

Results

Table 1: 2024 Drillhole collar table (this RNS)

Hole IDZoneUTM Easting #UTM Northing #Azimuth (deg.)Dip (deg.)Down hole Depth (m)
PM24-029Desert Scheelite424200.74248327184.11-53.381.7
PM24-030Desert Scheelite423858.64248208180.58-73.185.04
PM24-031Desert Scheelite423848.34248234184.95-83.3125.9
PM24-032Desert Scheelite4238104248226178.37-73.3106.1
PM24-033Desert Scheelite423907.94248249186.51-47.778.0
PM24-034Desert Scheelite423957.74248283178.08-53.498.45
PM24-035Desert Scheelite423933.54248276184.43-64.990.0
PM24-036Desert Scheelite423907.84248271179.86-50.042.7
PM24-037Desert Scheelite423907.74248270182.34-51.084.4
PM24-038Desert Scheelite423979.54248290175.62-56.491.44
PM24-039Desert Scheelite424018.34248296183.97-61.278.0
#UTM Zone 11 North NAD83 datum
Table 2: Significant Diamond Drillhole Assay Results1
Hole IDDownhole Depth (m)Interval (m)WWWO3ZnAgCuIntersection Composites
FromTo(ppm) a(%) b(%) c(%) d(g/t) a(ppm) a(weighted averages) c
PM24-02942.844.51.701,330-0.17Δ0.311.739214.2m @ 0.25% WO3 , 0.04% Cu , 0.98% Zn & 5.05 g/t Ag
44.546.01.502,3800.310.311.54Ø7.61,160
46.046.70.702,0600.560.562.22Ø14.22,360
46.748.51.802,9700.380.381.85Ø1.4507
48.550.01.501,180-0.15Δ0.3717.8170
50.051.51.501,020-0.13Δ0.809.8150
51.553.01.501,330-0.17Δ0.02-57
53.054.51.501,650-0.21Δ0.430.5135
54.556.01.502,2200.290.292.45Ø0.6165
56.057.01.002,2800.310.310.151.930
PM24-02968.770.21.501,460-0.18Δ0.091.4567.8m @ 0.21% WO3, 0.04% Cu, 0.9% Zn & 11.82 g/t Ag
70.271.71.501,730-0.22Δ0.060.749
71.773.21.50660-0.08Δ0.1220.448
73.274.71.502,4800.340.341.33Ø36.5615
74.775.71.001,790-0.23Δ3.66Ø1.8870
75.776.50.801,390-0.18Δ1.21Ø2.41,195
PM24-03017.418.41.001,670-0.21Δ0.043.21052.6m @ 0.28% WO3, 0.01% Cu, 0.03% Zn & 2.46 g/t Ag
18.420.01.602,4300.330.330.022.038
PM24-03026.027.51.503,1300.810.810.061.7353m @ 0.53% WO3, 0% Cu, 0.04% Zn & 1.5 g/t Ag
27.529.01.501,980-0.25Δ0.021.320
PM24-03033.535.01.501,850-0.23Δ0.080.99310.5m @ 0.33% WO3, 0% Cu, 0.05% Zn & 2.36 Ag
35.036.51.501,660-0.21Δ0.051.331
36.538.01.502,0100.270.270.071.151
38.039.51.502,3000.330.330.050.934
39.541.01.50980-0.12Δ0.050.719
41.042.51.502,6000.440.440.0310.227
42.544.01.503,4000.690.690.021.428
PM24-03063.164.21.103,2000.750.750.00-293.4m @ 0.36% WO3, 0.01% Cu, 0.02% Zn & 0.22 g/t Ag
64.265.00.801,320-0.17Δ0.02-51
65.066.51.501,390-0.18Δ0.030.565
PM24-03130.131.81.702,3700.320.320.010.9821.7m @ 0.32% WO3, 0.01% Cu, 0.01% Zn & 0.9 g/t Ag
PM24-03151.352.81.503,4500.540.540.01-1819.4m @ 0.26% WO3, 0% Cu, 0.03% Zn & 2.35 Ag
52.854.31.503,5900.500.500.01-24
54.355.81.50760-0.10Δ0.03-39
55.857.31.501,550-0.20Δ0.01-23
57.358.81.5030-0.00Δ0.02-14
58.860.31.501,130-0.14Δ0.02-58
60.361.81.502,0900.280.280.01-9
61.863.21.401,260-0.16Δ0.1619.141
63.264.71.502,0900.280.280.01-23
64.766.21.501,280-0.16Δ0.034.653
66.267.71.502,4100.330.330.022.6102
67.769.21.501,280-0.16Δ0.010.775
69.270.71.503,7600.520.520.034.716
PM24-03182.784.21.501,590-0.20Δ0.0727.04927m @ 0.29% WO3, 0.01% Cu, 0.02% Zn & 3.09 g/t Ag
84.285.71.502,1600.590.590.020.528
85.787.21.502,4600.340.340.010.641
87.288.71.503,2100.450.450.011.735
88.790.21.50550-0.07Δ0.02-33
90.291.71.5050-0.01Δ0.01-16
91.793.21.502,7000.370.370.01-47
93.294.71.503,9300.600.600.02-32
94.796.21.502,0500.510.510.032.598
96.297.71.502,1000.280.280.031.325
97.799.21.502,3000.290.290.02-7
99.2100.71.50430-0.05Δ0.034.383
100.7102.21.502,2400.290.290.037.239
102.2103.71.501,240-0.16Δ0.022.849
103.7105.21.503,4900.470.470.021.3108
105.2106.71.50420-0.05Δ0.021.951
106.7108.21.501,200-0.15Δ0.021.774
108.2109.71.502,3300.320.320.022.8211
PM24-03264.265.71.502,1800.280.280.022.4991.5m @ 0.28% WO3, 0.01% Cu, 0.02% Zn & 2.4 g/t Ag
PM24-0337.59.01.502,7100.440.440.033.18914.6m @ 0.14% WO3, 0.01% Cu, 0.08% Zn & 4.38 g/t Ag
9.010.51.50470-0.06Δ0.033.1109
10.512.01.50130-0.02Δ0.063.849
12.013.51.501,030-0.13Δ0.042.054
13.515.01.50350-0.04Δ0.066.129
15.016.21.201,110-0.14Δ0.072.311
16.217.71.50400-0.05Δ0.203.645
17.719.31.60290-0.04Δ0.103.630
19.320.61.301,010-0.13Δ0.092.526
20.622.11.502,3600.390.390.1613.153
PM24-03344.846.31.501,410-0.18Δ1.19Ø66.88019m @ 0.2% WO3, 0.02% Cu, 0.3% Zn & 13.57 g/t Ag
46.347.81.501,230-0.16Δ0.337.3224
47.849.31.502,0000.260.260.103.857
49.350.81.50660-0.08Δ0.051.323
50.852.31.501,620-0.20Δ0.051.047
52.353.81.502,3500.330.330.071.2184
PM24-03420.722.21.502,0400.280.280.102.018727.1m @ 0.46% WO3, 0.33% Cu, 0.71% Zn & 32 g/t Ag
22.223.71.501,740-0.22Δ0.145.0144
23.725.21.502,8200.440.440.060.9125
25.226.71.502,3800.460.460.203.9356
26.728.21.501,600-0.20Δ0.333.7928
28.229.71.501,040-0.13Δ1.64Ø18.06,450
29.731.21.502,0600.630.632.23Ø41.413,700
31.232.71.502,5000.530.531.85Ø9.37,550
32.734.21.502,4000.320.320.8812.86,220
34.235.71.506,7301.201.200.7223.84,4805.3m @ 1.08% WO3, 0.24% Cu, 0.32% Zn & 130.05 g/t Ag
35.736.81.1010,0001.621.620.15434.03,650
36.838.21.402,5700.320.320.0399.0603
38.239.51.303,9601.301.300.3128.9808
39.541.82.30---Δ---
41.844.83.00840-0.11Δ1.37Ø2.12,490
44.846.31.504,7900.780.781.13Ø15.87,700
46.347.81.502,0600.280.280.421.62,460
PM24-03520.121.71.604,3100.770.770.1217.02366.1m @ 0.3% WO3, 0.01% Cu, 0.08% Zn & 9.2 g/t Ag
21.723.21.50420-0.05Δ0.0910.7112
23.224.71.501,330-0.17Δ0.044.280
24.726.21.501,330-0.17Δ0.044.478
PM24-0358.29.81.62,5200.350.350.012.15181.6m @ 0.35% WO3, 0.05% Cu, 0.01% Zn & 2.1 g/t Ag
35.236.71.503,2300.550.550.044.38114.2m @ 0.52% WO3, 0.04% Cu, 0.09% Zn & 5.19 g/t Ag
36.738.21.503,8800.540.540.024.340
38.239.71.503,6500.570.570.0417.5113
39.741.21.503,7000.580.580.0711.7121
41.242.71.502,4100.390.390.021.2137
42.744.21.501,400-0.18Δ0.061.9277
44.245.71.501,350-0.17Δ0.223.31,185
45.747.21.506,9600.990.990.121.4465
47.248.71.505,3400.700.700.090.6198
48.749.40.704,0200.520.520.316.33,260
PM24-03634.636.11.501,050-0.13Δ0.5620.12848.1m @ 0.15% WO3, 0.02% Cu, 0.45% Zn & 33.07 g/t Ag
36.137.61.50400-0.05Δ0.558.2382
37.638.61.00180-0.02Δ0.082.482
38.640.01.401,790-0.23Δ0.4418.470
40.041.51.502,0900.260.260.60105.0166
41.542.71.201,150-0.15Δ0.3133.1139
PM24-03732.534.01.501,260-0.16Δ0.166.2601.5m @ 0.16% WO3, 0.01% Cu, 0.16% Zn & 6.2 g/t Ag
PM24-03740.041.51.501,370-0.17Δ0.145.8151.5m @ 0.17% WO3, 0% Cu, 0.14% Zn & 5.8 g/t Ag
PM24-03749.050.51.501,660-0.21Δ0.4390.61613m @ 0.21% WO3, 0.01% Cu, 0.41% Zn & 127.3 g/t Ag
50.552.01.501,650-0.21Δ0.39164.0128
PM24-03762.564.01.50600-0.08Δ1.06Ø120.03287.5m @ 0.18% WO3, 0.03% Cu, 0.46% Zn & 46.4 g/t Ag
64.065.51.501,880-0.24Δ0.55100.0244
65.567.01.501,570-0.20Δ0.172.9170
67.068.51.501,460-0.18Δ0.281.2138
68.570.01.501,800-0.23Δ0.237.9371
PM24-03827.027.70.704,4000.600.600.092.218718.5m @ 0.28% WO3, 0.04% Cu, 0.26% Zn & 55.11 g/t Ag
27.730.83.102,9900.420.420.101.361
30.832.31.502,9000.390.390.091.431
32.333.81.501,910-0.24Δ0.070.841
33.835.71.90650-0.08Δ0.183.7163
35.737.21.50530-0.07Δ0.184.456
37.238.71.502,8200.370.370.85101.01,215
38.740.21.50430-0.05Δ0.3552.8120
40.241.81.602,4000.320.320.53286.0730
41.842.60.804,5900.630.630.61345.02,940
42.645.52.901,670-0.21Δ0.1611.366
PM24-03858.059.51.502,9300.490.491.37Ø355.01766m @ 0.24% WO3, 0.02% Cu, 1.09% Zn & 253.25 g/t Ag18.2m @ 0.25% WO3, 0.08% Cu, 1.03% Zn & 97.64 g/t Ag
59.561.01.501,410-0.18Δ0.98355.0140
61.062.51.501,710-0.22Δ1.04Ø129.0122
62.564.01.50740-0.09Δ0.97174.0382
64.065.51.502,4100.320.321.80Ø66.51,070
65.567.21.701,300-0.16Δ1.27Ø13.21,410
67.268.71.501,400-0.18Δ1.84Ø19.23,380
68.770.21.502,0400.290.290.8844.2970
70.271.71.50400-0.05Δ0.534.3484
71.773.11.401,690-0.21Δ1.11Ø5.4363
73.174.61.502,7700.400.400.446.1448
74.676.21.603,0600.460.460.1810.7581
PM24-03926.527.91.401,650-0.21Δ0.173.92487.5m @ 0.21% WO3, 0.01% Cu, 0.12% Zn & 2.91 g/t Ag
27.929.41.502,0400.280.280.071.5100
29.430.91.501,150-0.15Δ0.082.0138
30.932.41.501,430-0.18Δ0.142.360
32.434.01.601,730-0.22Δ0.154.892
PM24-03941.843.31.503,6500.520.522.18Ø106.015,15012.1m @ 0.35% WO3, 0.51% Cu, 0.98% Zn & 57.24 Ag
43.344.20.902,4700.330.330.8517.43,990
44.245.71.502,3200.320.320.9046.08,200
45.747.51.802,8200.410.411.34Ø38.59,820
47.549.11.603,5800.640.640.82201.01,820
49.150.71.602,0300.270.270.6617.41,095
50.752.21.501,250-0.16Δ0.429.8100
52.253.91.701,310-0.17Δ0.609.1381

Table 2 notes:

Summary of certificated assay results provided by accredited laboratory ALS USA Inc

ppm: parts per million, 10,000 ppm = 1%

a: ALS method ME-ICP61;

b: WO3 % calculated as W % multiplied by 1.2611

c: ALS method Zn-OG62

Δ: denotes WO3 % calculated using W ppm (method ME-XRF15c)

F: denotes Zn % calculated using Zn ppm (method ME-ICP61)

Figure 1: 2025 drillhole plan map showing the location of all holes drilled to date. Red drill collars represent holes for which assays have been reported, yellow collars are holes still to be reported.

References

1: ALS USA Inc. analytical method utilised: ME-ICP61 for all samples, with ME-ICP61 overlimit samples also analysed using Ore Grade packages Ag-OG62, Cu-OG62, Pb-OG62, Zn-OG62, and W-XRF15c for high-grade tungsten.

The Directors of the Company are responsible for the contents of this announcement.

Cleaned text: letterheads, contacts and legal notices removed. View the original announcement ↗ · Company filings. Not investment advice.

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