Minaurum Silver Inc. (TSX-V: MGG) (OTCQX: MMRGF) is pleased to announce the discovery of the high-grade Africa vein zone, a previously unrecognized “blind” vein, highlighting the potential for additional blind veins of significant scale across the Alamos Silver Project in Sonora, Mexico.  Drilling returned 669 g/t AgEq over 2.05 metres and demonstrated the potential for high-grade mineralization beyond the known surface-exposed vein.

The Company also reports multiple high-grade results from resource-expansion drilling at the Europa Sur, Quintera, San Jose, and Promontorio Sur vein zones, including 367 g/t AgEq over 2.65 metres at Europa Sur and 462 g/t AgEq over 1.50 metres at Quintera. These results form part of Minaurum’s ongoing Phase II, 50,000-metre resource-expansion drilling program at Alamos.

Highlights include:

Africa Vein Zone 

• 1.30 m of 592 g/t AgEq
  (498 g/t Ag, 0.05 g/t Au, 0.35% Cu, 0.78% Pb, 1.85% Zn) (Hole AL26-257)
• 2.05 m of 669 g/t AgEq
  (270 g/t Ag, 0.87 g/t Au, 1.55% Cu, 2.80% Pb, 5.62% Zn) (Hole AL26-268)

Europa Sur Vein Zone 

• 2.65 m of 367 g/t AgEq
  (226 g/t Ag, 0.10 g/t Au, 0.84% Cu, 0.94% Pb, 1.76% Zn)
  including 1.35 m of 596 g/t AgEq
  (376 g/t Ag, 0.13 gt Au, 1.38% Cu, 1.27% Pb, 2.72% Zn) (Hole AL26-266)
• 0.60 m of 1,140 g/t AgEq
  (712 g/t Ag, 3.41 g/t Au, 0.39% Cu, 1.70% Pb, 2.40% Zn) (Hole AL26-261)
• 1.90 m of 416 g/t AgEq
  (114 g/t Ag, 2.27 g/t Au, 0.49% Cu, 0.82% Pb, 1.74% Zn) (Hole AL26-268)

Quintera Vein Zone

• 3.20 m of 253 g/t AgEq
  (186 g/t Ag, 0.01 g/t Au, 0.71% Cu, 0.16% Pb, 0.08% Zn)
  including 1.50 m of 462 g/t AgEq
  (350 g/t Ag, 0.01 g/t Au, 1.22% Cu, 0.24% Pb, 0.09% Zn) (Hole AL26-259)

“The discovery of the high-grade, blind Africa vein represents an exciting new opportunity for resource expansion ahead of our upcoming resource estimate update,” stated Darrell Rader, President and CEO. “The Africa vein was discovered by drilling the Europa Sur vein zone, and continuing into its footwall. This discovery highlights the potential for additional blind veins of scale across the Project, including robust, high-grade parallel vein zones similar to the one hosting the Africa vein.”

Figure 1. Plan view showing locations of Quintera, Promontorio, Europa, and San Jose vein zones. Note position of Africa vein in footwall of Europa Sur. Click to enlarge.

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NEW African Vein Zone

The newly discovered Africa vein, intersected in holes AL26-257, -268, and -270, lies about 50 m in the footwall (west of) the Europa Sur vein. Company geologists noted significant alteration in the footwall and allowed hole AL26-257 to continue, thus discovering the Africa vein.  Hole AL26-257 cut 1.30 m of 592 g/t AgEq (498 g/t Ag, 0.05 g/t Au, 0.35% Cu, 0.78% Pb, 1.85% Zn) and hole AL26-268 reported 2.05 m of 669 g/t AgEq (270 g/t Ag, 0.87 g/t Au, 1.55% Cu, 2.80% Pb, 5.62% Zn) (Table 1, Figures 1 and 2).

The Africa vein is open along strike with strong potential demonstrated by Minaurum hole AL19-018, which intersected 5.35m of 156 g/t AgEq (88 g/t Ag, 0.07 g/t Au, 0.13% Cu, 0.51% Pb, 1.71% Zn) about 400 m north of the AL26-257 intersection, also in the footwall of Europa Sur (see new release dated August 22, 2019).

Table 1. Assay highlights for Africa vein.  True widths are based on current interpretation of mineralized structures.Weight-averaged silver-equivalent grades (AgEq g/t) are based on the 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.

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Figure 2. Longitudinal section of Africa vein showing intersections. Click to enlarge.

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Europa – Europa Sur Vein Zones 

Europa Sur, the southern extension of the Europa vein zone, is not included in the inferred initial resource (see news release dated January 28, 2026).  Europa Sur continues to demonstrate continuity of mineralization and potential for resource expansion outside of the central Europa vein. Higher grades of gold and copper continue to be intersected in the Europa Sur zone (see news releases dated March 31, May 27, July 8, and September 23, 2026).

Hole AL26-261 intersected significant high-grade mineralization across 0.60 m of 1,140 g/t AgEq (712 g/t Ag, 3.41 g/t Au, 0.39% Cu, 1.70% Pb, 2.40% Zn) in the Europa Sur zone about 100 m south of the AL26-255 interval of 0.95 m of 256 g/t AgEq (see Minaurum News Release dated September 23, 2026). Hole AL26-266 intersected 2.65 m of 367 g/t AgEq (226 g/t Ag, 0.10 g/t Au, 0.84% Cu, 0.94% Pb, 1.76% Zn) roughly 160 m to the north of and 150 m above the AL26-255 intersection. Hole AL26-268 cut 1.90 m of 416 g/t AgEq (114 g/t Ag, 2.27 g/t Au, 0.49% Cu, 0.82% Pb, and 1.74% Zn) in an 80-m step out to the south and above the AL26-255 intercept (Table 2, Figures 3 and 4).

Figure 3. Longitudinal section of Europa-Europa Sur vein zone, showing locations of highlighted mineralized intersections. Click to enlarge.

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Figure 4. Cross section of Europa-Europa Sur vein zone, showing relationship of Europa Sur and Africa mineralized intervals in hole AL26-268. Click to enlarge

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Table 2. 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 the 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.

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Quintera – Travesia Vein Zones 

The upcoming updated inferred resource estimate is expected to include a portion of the silver-rich Quintera vein zone. Hole AL26-259 intersected 3.20 m of 253 g/t AgEq (186 g/t Ag, 0.01 g/t Au, 0.71% Cu, 0.16% Pb, 0.08% Zn) about 80 m above and 80 m south of the intersection of hole AL26-230: 26.30 m of 369 g/t AgEq (306 g/t Ag, 0.03 g/t Au, 0.37% Cu, 0.73% Pb, 0.61% Zn) (see news release dated August 25, 2026). See Table 3 and Figure 5.

Drilling continues at Quintera – Travesia.

Figure 5. Cross section of Travesia and Quintera vein zones, showing relationship of hole AL26-259 to historical workings. Click to enlarge.

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Table 3. Assay highlights for Quintera vein.  True widths are based on current interpretation of mineralized structures.Weight-averaged silver-equivalent grades (AgEq g/t) are based on the 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. 

Promontorio Sur Vein Zone

The Promontorio Sur vein zone is the southern extension of the Promontorio vein zone, down-dropped across a NW-SE striking fault. Drilling at Promontorio Sur continues to report significant intersections weighted in base metals with silver and gold credits. Hole AL26-263 cut 3.95 m of 160 g/t AgEq (39 g/t Ag, 0.18 g/t Au, 0.25% Cu, 1.50% Pb, 2.28% Zn), including 1.20 m of 301 g/t AgEq (107 g/t Ag, 0.31 g/t Au, 0.66% Cu, 2.07% Pb, 2.92% Zn). Hole AL26-265 reported0.40 m of 691 g/t AgEq (404 g/t Ag, 2.06 g/t Au, 0.80% Cu, 0.20% Pb, 1.31% Zn) and 1.90 m of 239 g/t AgEq (130 g/t Ag, 0.18 g/t Au, 1.00% Cu, 0.19% Pb, 0.16% Zn) (Table 4, Figure 6). Drilling continues at Promontorio Sur with assays pending.

Figure 6. Longitudinal section of Quintera, Travesia, and Promontorio vein zones, highlighting recent drilling at Promontorio Sur, and showing all drill intercepts and historical working. Click to enlarge

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Table 4. Assay highlights for Promontorio Sur vein zone.  True widths are based on current interpretation of mineralized structures. Weight-averaged silver-equivalent grades (AgEq g/t) are based on the 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.

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San Jose Vein Zone

Hole AL26-267 cut a 0.30-m interval of 782 g/t AgEq (660 g/t Ag, 0.04 g/t Au, 1.32% Cu, 0.10% Pb, 0.16% Zn) as well as several other mineralized intervals demonstrating continued high-grade alogn strike and down-dip (Table 5, Figure 7). The San Jose vein zone is expected to contribute to the updated mineral-resource estimate.

Figure 7. Longitudinal section of the San Jose vein zone, showing positions of drill intercepts. Click to enlarge.

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Table 5. 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 the 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. 

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Minaurum Silver Inc. (TSXV: MGG) (OTCQX: MMRGF) (FSE: 78M0) 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

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this news release.

___________________________________________________________________________

1570- 200 Burrard Street
Vancouver, BC V6C 3L6

Telephone: 1 778 330-0994
www.minaurum.com
info@minaurum.com