Minaurum Drills High-Grade Silver on the Europa Sur Vein Zone at the Alamos Silver Project: 3.20 m of 882 g/t AgEq and 6.20 m of 374 g/t AgEq

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# Minaurum Drills High-Grade Silver on the Europa Sur Vein Zone at the Alamos Silver Project: 3.20 m of 882 g/t AgEq and 6.20 m of 374 g/t AgEq

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# Minaurum Drills High-Grade Silver on the Europa Sur Vein Zone at the Alamos Silver Project: 3.20 m of 882 g/t AgEq and 6.20 m of 374 g/t AgEq
NEWS RELEASE
MINAURUM SILVER INC.
FOR RELEASE: May 27, 2026 TRADING SYMBOL TSX.V: MGG
Minaurum Drills High-Grade Silver on the Europa Sur Vein Zone at the
Alamos Silver Project: 3.20 m of 882 g/t AgEq and 6.20 m of 374 g/t AgEq
Minaurum Silver Inc. (“Minaurum” or the “Company”) (TSXV: MGG) (OTCQX: MMRGF)
is pleased to report continued high-grade drill results from the Europa Sur, Travesia, and San
Jose Vein Zones, as part of its ongoing Phase II, 50,000-metre resource expansion program at the
Alamos Silver Project (“Alamos”) in Sonora, Mexico.
Highlights include:
 3.20 m of 882 g/t silver equivalent (“AgEq”) including 0.95 m of 2,423 g/t AgEq
(Hole AL26-196)
 6.20 m of 374 g/t AgEq including 1.85 m of 655 g/t AgEq (Hole AL26-196)
 1.95 m of 255 g/t AgEq (Hole AL26-198)
“The high-grade results from the southern extension of the Europa Sur vein zone reinforce
the strong potential for resource growth in addition to the Quintera, Travesia, and San Jose
vein zones at Alamos,” stated Darrell Rader, President and CEO of Minaurum Silver. “Hole
AL26-196 intersected significant gold and copper values alongside high-grade silver and
base metals, suggesting the presence of a potential hot spot or feeder structure. We look
forward to releasing more results as assays are received.”
Figure 1. Plan view showing locations of Travesia, Quintera, Promontorio, and Europa vein zones. Click to
enlarge.
Europa Vein Zone:
Europa contains 26.5 Moz AgEq of the 55.4 Moz AgEq inferred initial resource (Figures 1 and
2) (see news release dated January 28, 2026) not including its southern extension Europa Sur.
Recent step-out drilling at Europa Sur has expanded the zone at depth and along strike returning
high-grade silver, gold, copper, and base metal results (Table 1; Figures 2 and 3), bolstering earlier
high-grade intercepts of 12.35 m of 408 g/t AgEq (Hole AL25-163), 1.10 m of 305 g/t Ag, 449 g/t
AgEq (Hole AL26-185), and 0.60 m of 701 g/t Ag, 828 g/t AgEq (Hole AL26-186) (see news
releases dated February 10 and March 31, 2026).
Cumulatively these results highlight the potential for significant resource expansion outside
of the central Europa vein zone in the Europa Sur vein zone.
Gold and copper values in Europa Sur are higher than those in the central Europa vein,
suggesting the presence of higher-temperature mineralization possibly associated with a feeder
zone as indicated by the results particularly in hole AL26-196: 3.20 m of 882 g/t AgEq or 453 g/t
Ag, 1.19 g/t Au, 2.29% Cu, 1.50% Pb, 1.99% Zn including 0.95 m of 2,423 g/t AgEq or 1,266
g/t Ag, 3.08 g/t Au, 8.01% Cu, 4.17% Pb, 4.96% Zn.
Further drilling is planned above and below hole AL26-196 intercept to target and further define
the vein’s significant potential.
Figure 2. Longitudinal section of Europa-Europa Sur vein zone, showing locations of highlighted mineralized
intersections. Click to enlarge.
Figure 3. Cross section of Europa-Europa Sur vein zone, showing locations of highlighted mineralized
intersections. Click to enlarge.
Table 1. Assay Highlights for Europa Sur Vein Zone. True widths are based on current interpretation of
mineralized structures.
Weight-averaged silver-equivalent grades (AgEq g/t) are based on: October 1, 2025 Long-term CIBC Global Mining
Group Analyst Consensus Commodity Price Forecast: Ag $29.73/tr oz, Au $2,646/tr oz, Cu $4.34/lb, Pb $0.92/lb, Zn
$1.21/lb. Metallurgical recovery assumption: 88.3% for Ag, 88.5% for Au, 75.5% for Cu, 83% for Pb, 75% for Zn.
True
From To Interval Ag Au Cu Pb Zn AgEq
Hole Width
(m) (m) (m) g/t g/t % % % g/t
(m)
324.45 325.1 0.65 0.55 429 0.18 0.30 0.43 0.56 494
444.7 446 1.3 1.10 48 0.01 0.15 0.39 0.83 90
AL26-189 including
444.7 445.1 0.4 0.35 99 0.01 0.36 0.98 2.07 200
454.25 455 0.75 0.65 128 0.05 0.29 0.63 1.38 203
263.5 265.1 1.6 1.60 105 0.02 0.44 0.59 1.01 181
AL26-190 including
264.4 265.1 0.7 0.70 151 0.02 0.53 0.98 1.53 255
63.35 65.1 1.75 1.70 79 0.10 0.25 1.58 4.87 257
including
63.35 63.75 0.4 0.39 240 0.28 0.63 4.2 10.1 643
119.9 122 2.1 2.04 36 0.02 0.00 0.34 2.35 101
including
121.6 122 0.4 0.39 61 0.05 0.00 0.42 10.3 320
AL26-191 467.5 468.55 1.05 1.02 52 0.12 0.08 0.51 1.71 121
including
468.1 468.55 0.45 0.44 91 0.23 0.11 1.08 1.98 190
490.8 491.95 1.15 1.12 237 0.11 0.31 0.92 1.96 339
including
490.8 491.4 0.6 0.58 406 0.17 0.47 0.97 2.18 533
494.15 494.85 0.7 0.68 205 0.08 0.39 1.09 2.47 327
AL26-194 352.5 353.45 0.95 0.90 170 0.05 0.18 0.16 0.44 205
370.5 370.85 0.35 0.32 209 0.19 0.57 0.04 0.04 277
372.3 375.5 3.2 2.91 453 1.19 2.88 1.49 1.98 882
including
372.3 373.25 0.95 0.86 1266 3.08 8.01 4.17 4.95 2423
AL26-196
which includes
372.3 372.65 0.35 0.32 1140 6.39 10.9 3.83 9.25 2937
and
372.95 373.25 0.3 0.27 2570 2.15 11.9 8.09 4.17 4038
381.85 382.45 0.6 0.55 301 0.16 0.80 0.14 1.50 423
386.9 393.1 6.2 5.65 210 0.14 1.02 0.75 2.06 374
including
391.25 393.1 1.85 1.68 310 0.15 2.36 2.21 3.62 655
which includes
391.6 392 0.4 0.36 952 0.31 8.31 5.85 7.88 1990
73.65 74 0.35 0.33 53.5 0.19 0.22 1.21 3.56 199
442.1 444.05 1.95 1.85 204 0.06 0.24 0.18 0.85 255
including
AL26-198
442.1 442.4 0.3 0.29 1015 0.06 0.65 0.33 2.24 1136
and
443.75 444.05 0.3 0.29 160 0.31 0.55 0.54 1.98 293
Quintera and Travesia Vein Zones
Holes AL26-192 and AL26-197 targeted the northern part of the Quintera vein zone and
returned high-grade results of 0.90 m of 309 g/t AgEq (Hole AL26-193). Holes AL26-193, AL26-
194, and AL26-199 were drilled into the Travesia vein and returned along-strike and from step
out, 0.95 m of 282 g/t AgEq (Hole AL26-199). See Table 2, Figures 4 and 5.
Further drilling of the Travesia zone will include further targeting for southwest-plunging shoots.
At Quintera, additional drilling will target below the intersections reported in holes AL26-180
(5.30 m of 633 g/t AgEq) and hole AL26-188 (5.80 m of 658 g/t AgEq) (see news release dated
March 31, 2026) and alongside of the deepest parts of the historical La Quintera mine. Vein
intersections in the northern part of the Quintera vein returned anomalous metal values.
Table 2. Assay Highlights for Quintera and Travesia Vein Zones. True widths are based on current interpretation
of mineralized structures.
Weight-averaged silver-equivalent grades (AgEq g/t) are based on: October 1, 2025 Long-term CIBC Global Mining
Group Analyst Consensus Commodity Price Forecast: Ag $29.73/tr oz, Au $2,646/tr oz, Cu $4.34/lb, Pb $0.92/lb, Zn
$1.21/lb. Metallurgical recovery assumption: 88.3% for Ag, 88.5% for Au, 75.5% for Cu, 83% for Pb, 75% for Zn.
QUINTERA
True
From To Interval Ag Au Cu Pb Zn AgEq
Hole Width
(m) (m) (m) g/t g/t % % % g/t
(m)
AL26-192 244.8 245.25 0.45 0.42 65.9 0.00 0.32 0.07 0.16 99
AL26-193 276.65 277.6 0.95 0.90 206 0.00 0.53 1.69 0.98 309
AL26-197 67.9 69 1.1 1.00 51.9 0.01 0.16 0.40 0.40 85
AL26-199 283.65 284.05 0.4 0.30 88 0.00 0.25 0.26 0.51 128
TRAVESIA
True
From To Interval Ag Au Cu Pb Zn AgEq
Hole Width
(m) (m) (m) g/t g/t % % % g/t
(m)
AL26-199 221.7 222.65 0.95 0.70 127 0.08 0.98 0.59 2.19 282
Figure 4. Longitudinal section of Travesia-Promontorio vein zones, showing locations of highlighted mineralized
intersections. Click to enlarge.
Figure 5. Longitudinal section of Quintera vein zone, showing reported historic mine workings. Click to enlarge.
San Jose Vein Zone
Hole AL26-195 is the first hole of the resource-definition drill program at San Jose and
returned high-grade mineralization: 1.00 m of 211 g/t AgEq and 0.20 m of 764 g/t AgEq (Table
3, Figure 1). Previous drilling on the San Jose zone intersected 9.6 m of 269 AgEq and 0.90 m
of 383 g/t AgEq (Hole AL18-015); 0.90 m of 337 g/t Ag (Hole AL19-031), 4.85 m of 159 g/t Ag
(Hole AL21-091), and 4.05 m of 289 g/t Ag (Hole AL21-92A) (see new releases dated March 1,
2019 and March 1, 2022). Further drilling at San Jose will continue to target along strike in order
to build an estimated resource on the vein zone.
Table 3. Assay Highlights for San Jose Vein Zone. True widths are based on current interpretation of mineralized
structures.
Weight-averaged silver-equivalent grades (AgEq g/t) are based on: October 1, 2025 Long-term CIBC Global Mining
Group Analyst Consensus Commodity Price Forecast: Ag $29.73/tr oz, Au $2,646/tr oz, Cu $4.34/lb, Pb $0.92/lb, Zn
$1.21/lb. Metallurgical recovery assumption: 88.3% for Ag, 88.5% for Au, 75.5% for Cu, 83% for Pb, 75% for Zn.
True
From To Interval Ag Au Cu Pb Zn AgEq
Hole Width
(m) (m) (m) g/t g/t % % % g/t
(m)
15 16 1 0.95 185 0.03 0.12 0.22 0.35 211
AL26-195
77.6 77.8 0.2 0.19 723 0.01 0.24 0.08 0.70 764
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Minaurum Silver Inc. (MGG | TSX Venture Exchange; MMRGF | OTC; 78M Frankfurt) is
an Americas-focused explorer concentrating on the high-grade 100% owned, production-permitted
Alamos silver project in southern Sonora, Mexico and the Lone Mountain CRD Project in Nevada,
USA. Minaurum is managed by one of the strongest technical and finance teams and will continue
its founders' legacy of creating shareholder value by acquiring and developing a pipeline of Tier-
One precious-and base metal projects.
ON BEHALF OF THE BOARD
“Darrell A. Rader”
Darrell A. Rader
President and CEO
For more information, please contact:
Sunny Pannu – Investor Relations and Corporate Development Manager
(778) 330 0994 or via email at pannu@minaurum.com
The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this
news release.
___________________________________________________________________________
1570– 200 Burrard Street Telephone: 1 778 330-0994
Vancouver, BC V6C 3L6 www.minaurum.com
info@minaurum.com
Data review and verification: Stephen R. Maynard, Vice President of Exploration of Minaurum and a Qualified
Person (QP) as defined by National Instrument 43-101, reviewed and verified the assay data, and has approved the
disclosure in this news release. Verification was done by visual inspection of core samples and comparison to assay
results. Assay results have not been checked by re-analysis. No factors were identified that could materially affect the
accuracy or reliability of the data presented in this news release.
Analytical Procedures and Quality Assurance/Quality Control: Preparation and assaying of drilling samples from
Minaurum's Alamos project are done with strict adherence to a Quality Assurance/Quality Control (QA/QC) protocol.
Core samples are sawed in half and then bagged in a secure facility near the site and then shipped either by a licensed
courior by Company personnel to ALS Minerals' preparation facility in Hermosillo, Sonora, Mexico. ALS prepares
the samples, crushing them to 70% less than 2mm, splitting off 250g, and pulverizing the split to more than 85%
passing 75 microns. The resulting sample pulps are prepared in Hermosillo and then shipped to Vancouver for
chemical analysis by ALS Minerals. In Vancouver, the pulps are analyzed for gold by fire assay and ICP/AES on a
30-gram charge. In addition, analyses are done for silver, copper, lead, and zinc using 4-acid digestion and ICP
analysis. Samples with silver values greater than 100 g/t; and copper, lead, or zinc values greater than 10,000 ppm
(1%) are re-analyzed using 4-acid digestion and atomic absorption spectrometry (AAS).
Quality-control (QC) samples are inserted in the sample s

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