Minaurum Resource Step-Out Drilling Returns: 3.40 m of 397 g/t AgEq at Europa Sur, 1.90 m of 323 g/t AgEq at Quintera, and 0.90 m of 1469 g/t AgEq at San Jose in Alamos Silver Project

Vancouver, British Columbia--(Newsfile Corp. - September 24, 2026) - Minaurum Silver Inc. (TSXV: MGG) (OTCQX: MMRGF) (" Minaurum " or the " Company ") is pleased to report high-grade silver drill results from the Europa, Quintera, San Jose, and Promontorio Sur Vein Zones , as part of its ongoing Phase II, 50,000-metre resource-expansion drilling program at the Alamos Silver Project ("Alamos") in Sonora, Mexico.

Highlights include:

Europa Sur Vein Zone

1.60 m of 412 g/t silver equivalent ("AgEq") ( 314 g/t Ag , 0.41 g/t Au, 0.42% Cu, 0.41% Pb , 0.78% Zn) including 0.40 m of 708 g/t AgEq ( 409 g/t Ag , 1.51 g/t Au , 1.27% Cu , 0.82% Pb, 1.66% Zn ) (Hole AL26-233)

3.40 m of 397 g/t AgEq ( 237 g/t Ag , 0.20 g/t Au, 0.95% Cu , 0.80% Pb , 1.87% Zn ) including 0.30 m of 1,433 g/t AgEq ( 1,135 g/t Ag , 0.23 g/t Au, 2.26% Cu , 1.42% Pb, 2.36% Zn ) (Hole AL26-246)

Quintera Vein Zone

1.90 m of 323 g/t AgEq ( 263 g/t Ag , 0.02 g/t Au, 0.44% Cu, 0.27% Pb, 0.63% Zn) (Hole AL26-243)

0.50 m of 1,559 g/t AgEq (1,460 g/t Ag, 0.04 g/t Au, 1.11% Cu , 0.01% Pb, 0.01% Zn) (Hole AL26-250)

San Jose Vein Zone

0.90 m of 1,469 g/t AgEq ( 1,103 g/t Ag , 0.26 g/t Au, 2.42% Cu, 2.80% Pb, 3.35% Zn ) including 0.50 m of 2,425 g/t AgEq ( 1,910 g/t Ag , 0.43 g/t Au, 3.90% Cu, 1.60% Pb, 4.71% Zn ) (Hole AL26-249)

"Resource-expansion drilling continues to demonstrate the strong continuity of our high-grade silver vein zones-including Quintera and Europa Sur-while the San Jose vein delivered impressive results with silver grades exceeding 1 kg/t," stated Darrell Rader, President and CEO. "Additionally, Promontorio Sur received its first round of step-out drilling, yielding encouraging initial results, with further assays to be released as they become available."

Figure 1. Plan view showing location