Aya Gold & Silver Reports High-Grade Drill Results at Boumadine

MONTREAL, May 20, 2026 (GLOBE NEWSWIRE) -- Aya Gold & Silver Inc. (TSX: AYA; NASDAQ: AYA) (“Aya” or the “Corporation”) is pleased to report new drill results at the Boumadine Project (“Boumadine” or the “Project”) from its ongoing infill drill program in the Kingdom of Morocco. These results confirm strong high-grade continuity along the Boumadine Main Trend and support the potential for continued resource growth and scale. Highlights 1 Boumadine Main Trend (5.4km) Multiple additional high-grade intercepts: BOU-DD25-745 intercepted 890 grams per tonne (“g/t”) silver equivalent (“AgEq”) over 51.5 metres (“m”) (2.05 g/t gold (“Au”), 535 g/t silver (“Ag”), 3.8% zinc (“Zn”), and 5.9% lead (“Pb”), including 1,504 g/t AgEq over 19.3m (2.17 g/t Au, 1,032 g/t Ag, 5.3% Zn, and 9.8% Pb).

BOU-DD25-746 intercepted 665 g/t AgEq over 20.4m (1.63 g/t Au, 410 g/t Ag, 2.8% Zn and 3.4% Pb), including 1,276 g/t AgEq over 5.3m (3.98 g/t Au, 695g/t Ag, 6.1% Zn and 7.2% Pb) and 741 g/t AgEq over 14.5m (5.24 g/t Au, 204 g/t Ag, 3.9% Zn and 2.2% Pb), including 1,112 g/t AgEq over 8.4m (8.79 g/t Au, 276g/t Ag, 4.5% Zn and 2.3% Pb). BOU-DD26-790 intercepted 746 g/t AgEq over 14.9m (0.62 g/t Au, 586 g/t Ag, 1.9% Zn and 3.7% Pb) including 1,227 g/t AgEq over 6.5m (1.05 g/t Au, 971g/t Ag, 1.9% Zn and 3.7% Pb). BOU-DD26-786 intercepted 511 g/t AgEq over 9.4m (0.61 g/t Au, 399 g/t Ag, 1.4% Zn, and 1.0% Pb) including 1,928 g/t AgEq over 1.8m (1.54 g/t Au, 1,708g/t Ag, 2.5% Zn and 1.7% Pb).

BOU-DD26-792 intercepted 462 g/t AgEq over 8.1m (0.79 g/t Au, 237 g/t Ag, 3.0% Zn and 4.5% Pb) including 1,036 g/t AgEq over 2.2m (1.50 g/t Au, 563g/t Ag, 5.2% Zn and 10.4% Pb). Exploration Update: 69,209m drilled at Boumadine year-to-date. 20% of the planned 360,000m infill drilling pr