Minaurum Silver Inc. (TSX-V: MGG) (OTCQX: MMRGF)  is pleased to report continued high-grade drill results from the Europa, Quintera, and San Jose Vein Zones, as part of its ongoing Phase II, 50,000-metre resource-expansion drilling program at the Alamos Silver Project in Sonora, Mexico.

Highlights include:

Quintera Vein Zone

• 26.30 m of 369 g/t silver equivalent
  (306 g/t Ag, 0.03 g/t Au, 0.37% Cu, 0.73% Pb, 0.61% Zn)
  including 0.30 m of 2,418 g/t AgEq
  (2,220 g/t Ag, 0.10 g/t Au, 1.01% Cu, 2.22% Pb, 2.46% Zn) (Hole AL26-230)

Europa Sur Vein Zone

• 3.40 m of 589 g/t AgEq
  (475 g/t Ag, 0.17 g/t Au, 0.53% Cu, 0.79% Pb, 1.59% Zn) (Hole AL26-224)

“The latest drill results continue to highlight the exceptional potential of the Alamos Silver Project. At Quintera, we’re intersecting wide zones of high-grade mineralization in the footwall of the historic mine workings, strengthening our confidence in future resource growth,” stated Darrell Rader, President and CEO of Minaurum Silver. “Meanwhile, Europa Sur continues to return impressive high-grade silver intercepts across the main vein as well as the associated hanging wall structures. We look forward to releasing additional results as drilling progresses.”

 Figure 1. Plan view showing locations of Travesia, Quintera, Promontorio, and Europa vein zones. Click to enlarge.

Quintera – Travesia Vein Zones

AL26-230 intersected a significant width of high-grade silver, cutting 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), in the Quintera vein outside of the old mine workings and about 75 m north of the high-grade intersections of holes AL26-180 and AL26-188. The AL26-230 intercept is situated about 130 m up dip and 30 m north of hole AL26-215, which also returned high-grade silver: 5.95 m of 1,117 g/t AgEq (953 g/t Ag, 0.05 g/t Au, 1.22% Cu, 1.58% Pb, 0.41% Zn) (see news releases dated March 31 and July 8, 2026). Hole AL26-230D also returned a wide intersection: 9.35 m of 162 g/t AgEq (145 g/t Ag, 0.01 g/t Au, 0.14 % Cu, 0.08% Pb, 0.09% Zn).

At greater depth, hole AL26-223 intersected 2.55 m of 185 g/t AgEq (164 g/t Ag, 0.03 g/t Au, 0.15% Cu, 0.17% Pb, 0.11% Zn), cutting the Quintera vein zone slightly higher than and about 75 m north of the AL26-215 intersection. Hole AL26-230 stopped in the vein zone at 399 m due to fractured rock. AL26-230D wedged off hole AL26-230 at 323 m to drill past the blockage and cut the complete width of the vein zone. See Table 1, Figures 2 and 3.

Further drilling of the Quintera zone will include targeting down-plunge projections of southwest-plunging shoots.

Table 1. Assay Highlights for Quintera 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.

15

0

17

0

90

1

95

0

90

2

95

1

Figure 2. Longitudinal section of Quintera vein zone, showing reported historic mine workings.

Figure 3  Cross section of Quintera vein zone, showing relationship of holes AL26-223, -230, -230D.

Europa – Europa Sur Vein Zones

Drilling in the Europa Sur extension of the Europa vein zone continues to return high-grade results. Hole AL26-224 cut 3.40 m of 589 g/t AgEq, including 0.30 m of 1,189 g/t AgEq (988 g/t Ag, 0.32 g/t Au, 1.35% Cu, 0.89% Pb, 1.66% Zn), and 1.00 m of 1,185 g/t AgEq (951 g/t Ag, 0.23 g/t Au, 1.05% Cu, 1.55% Pb, 3.92% Zn). Hole AL26-225 intersected multiple narrower but significant high-grade intervals in the Europa hanging wall veins, including 0.40 m of 1,569 g/t AgEq (1,280 g/t Ag, 0.06 g/t Au, 1.55% Cu, 2.33% Pb, 4.40% Zn); 0.55 m of 901 g/t AgEq (751 g/t Ag, 0.10 g/t Au, 1.02% Cu, 1.08% Pb, 1.37% Zn); 0.50 m of 1,004 g/t AgEq (564 g/t Ag, 0.18 g/t Au, 2.13% Cu, 3.32% Pb, 7.42% Zn); and 0.45 m of 2,069 g/t AgEq (950 g/t Ag, 1.64 g/t Au, 7.61% Cu, 9.76% Pb, 5.36% Zn). See Table 2, Figures 4-6.

The Europa vein inferred initial resource of 26.5 Moz AgEq of the 55.2 Moz AgEq (34.8 Moz Ag, 35.6 Koz Au, 114.77 Mlbs Pb, and 237.80 Mlbs Zn) does not include its southern extension Europa Sur (see news releases dated January 28, and July 8, 2026). The drill results continue to confirm the potential for significant resource expansion outside of the central Europa vein zone and in the Europa Sur vein zone.

Further drilling is planned below and above hole AL26-225 intercept to target and further define the potential of Europa Sur vein zone.

Figure 4. Longitudinal section of Europa-Europa Sur vein zone, showing locations of highlighted mineralized intersections.

Figure 5. Cross section of Europa-Europa Sur vein zone, showing locations of highlighted mineralized intersections around AL26-224.

Figure 6. Cross section of Europa-Europa Sur vein zone, showing locations of highlighted mineralized intersections around AL26-225. Click to enlarge.

Table 2. Assay Highlights for Europa 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.

25

0

24

0

30

1

31

0

15

2

39

2

64

7

San Jose Vein Zone

Hole AL26-220 intersected moderate mineralization returning 4.75 m of 81 g/t AgEq including 0.70 m of 102 g/t AgEq (Table 3). Recent drilling intersected stronger mineralization across wider a width of 8.5 m in hole AL26-200 returning 111 g/t AgEq (80 g/t Ag, 0.01 g/t Au, 0.05% Cu, 0.08% Pb, 0.21% Zn) including 1.55 m of 128 g/t AgEq (100 g/t Ag, 0.00 g/t Au, 0.03% Cu, 0.04% Pb, 0.10% Zn) (see news release dated July 8, 2026).

San Jose continues to provide important geological information improving Minaurum’s understanding of the vein zone. With each hole, the Company refines its targeting and vectoring, increasing confidence in the continuity of mineralization and guiding future drilling to maximize resource growth potential.

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 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.

Minaurum Silver Inc. 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.