Aya Gold & Silver Reports High-Grade Exploration 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

Boumadine Main Trend (5.4km) shows 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 program for 2026-2027 completed.

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“These latest results continue to demonstrate the exceptional grade, width and scale potential emerging at Boumadine,” said Benoit La Salle, President & CEO. “Intercepts including 890 g/t AgEq over 51.5m in BOU-DD25-745 — our strongest drill intercept to date at Boumadine on a grade-thickness basis — located just 70m below the current pit shell, highlights the strong continuity of wide, high-grade mineralization along the 5.4-kilometre Boumadine Main Trend, which remains open in all directions. With over 69,000m drilled year-to-date and 11 rigs currently active, we are aggressively advancing the 2026–2027 infill and expansion program ahead of the updated PEA expected mid-year.”

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