Aya Gold & Silver Reports High-Grade Boumadine Exploration Results, Expands Imariren to 1km and Identifies New High-Grade Asirem Zone to the West

MONTREAL, July 07, 2025 (GLOBE NEWSWIRE) -- Aya Gold & Silver Inc. (TSX: AYA; OTCQX: AYASF) ("Aya” or the "Corporation”) is pleased to announce new high-grade drill exploration results from its 2025 program at Boumadine in the Kingdom of Morocco. Today's results also extend the Imariren mineralized trend to 1 kilometer ("km”) and confirm high-grade continuity along the Boumadine Main Trend. In addition, Aya is pleased to announce that it has identified a new mineralized high-grade at-surface zone to the west.

Highlights1

New prospective high-grade Asirem zone identified to the west of Boumadine Main Trend, with grab samples including 3.34 grams per tonne ("g/t") gold ("Au”) and 4.0% copper ("Cu”).High-grade intercepts on the Boumadine Main Trend (5.4km): BOU-MP25-038 intercepted 258 g/t silver equivalent ("AgEq”) over 3.3 meter ("m”) (2.85 g/t Au, 27 g/t silver ("Ag”), 0.1% zinc ("Zn”), 1.0% lead ("Pb”) and 0.05% Cu, including 563 g/t AgEq over 1.3m (6.13 g/t Au, 65 g/t Ag, 0.3% Zn, 0.2% Pb and 0.1% Cu)BOU-MP25-028 intercepted 286 g/t AgEq over 4.3m (3.27 g/t Au, 19 g/t Ag, 0.3% Zn, 0.1% Pb and 0.1% Cu), including 460 g/t AgEq over 2.1m (5.46 g/t Au, 26 g/t Ag, 0.05% Zn, 0.1% Pb and 0.1% Cu) High-grade intercepts on the Tizi Zone (2km): BOU-DD25-547 intercepted 248 g/t AgEq over 9.0m (0.42 g/t Au, 80 g/t Ag, 3.6% Zn, 1.8% Pb and 0.04% Cu)BOU-DD24-540 intercepted 480 g/t AgEq over 2.0m (3.27 g/t Au, 53 g/t Ag, 1.1% Zn, 5.2% Pb and 0.2% Cu) Extension of Imariren strike length to 1km: BOU-DD25-503 intercepted 876 g/t AgEq over 1.0m (9.92 g/t Au, 49 g/t Ag, 1.6% Zn, 0.2% Pb and 0.1% Cu)BOU-DD25-529 intercepted 365 g/t AgEq over 2.0m (3.66 g/t Au, 52 g/t Ag, 0.5% Zn, 0.5% Pb and 0.1% Cu) Completed 79,732m of drilling at Boumadine year-to-date in 2025.

1. All intersections are in core lengths. Ag equivalent is based on a silver price of US$24/oz with a process recovery of 89%, a gold price of US$2,200/oz with a process recovery of 85%, a zinc price of US$1.20/lb with a process recovery of 72%, a lead price of US$1.00/lb with a process recovery of 85%, and a copper price of US$4.00/lb with a process recovery of 75% resulting in the following ratios: 1g/t Au: 77.9 g/t Ag; 1% Cu: 85.4 g/t Ag; 1% Pb: 24.2 g/t Ag; and 1% Zn: 24.6 g/t Ag.

"We are excited to have identified the new Asirem gold-copper zone at surface to the west of the Boumadine Main Trend - a new prospective target that highlights Boumadine’s potential to become a large-scale, high-grade project,” said Benoit La Salle, President & CEO. "We are well positioned to quickly drill test this new regional target, and the structure can now be traced to the west over 9km. In addition, high-grade holes BOU-MP25-038 and BOU-MP25-028 confirm strong continuity of the Boumadine Main Trend at depth, while hole BOU-DD25-529 extends the footprint south at Imariren. With over 8.4km of mineralized strike length, we continue to demonstrate Boumadine’s significant resource growth potential.”

Table 1 - Significant Intercepts from Boumadine Drill Exploration Program (Core Lengths)

DDH No.

From To Au Ag Length* Cu Pb Zn Mo Ag Eq**  (m) (m) (g/t) (g/t) (m) (%) (%) (%) (g/t) (g/t) BOU-DD25-503224.2 225.2 9.92 49 1.0 0.1 0.2 1.6 6 876 BOU-DD25-529134.4 136.4 3.66 52 2.0 0.0 0.5 0.5 5 365 BOU-DD25-533204.3 207.7 1.18 61 3.4 0.2 0.1 3.7 13 266 Including206.1 207.7 2.19 87 1.6 0.3 0.2 5.9 13 436 BOU-DD25-537119.9 124.3 1.46 30 4.4 0.0 0.2 0.8 119 174 BOU-DD25-54069.0 71.0 3.27 53 2.0 0.2 5.2 1.1 3 480 BOU-DD25-547117.0 126.0 0.42 80 9.0 0.0 1.8 3.6 5 248 BOU-MP25-026238.5 243.2 0.58 36 4.7 0.1 1.3 7.2 12 296 BOU-MP25-028392.1 396.4 3.27 19 4.3 0.1 0.1 0.3 8 286 Including392.1 394.2 5.46 26 2.1 0.1 0.1 0.0 10 460 BOU-MP25-031279.1 282.0 2.47 21 2.9 0.1 0.2 0.7 7 242 BOU-MP25-038437.7 441.0 2.85 27 3.3 0.0 0.1 0.1 2 258 Including437.7 439.0 6.13 65 1.3 0.1 0.2 0.3 2 563 BOU-MP25-039521.0 525.0 2.86 13 4.0 0.0 0.1 0.2 1 246 Including521.0 523.0 3.91 19 2.0 0.1 0.1 0.4 1 339