GoldHaven Expands Magno Project to Over 37,200 Hectares with Strategic Cassiar Claims Acquisition

Executive Summary

• GoldHaven Resources completed a review of historical exploration data for three newly acquired claims within its Magno Project, expanding the property to >37,200 ha.
• The reviewed claims host three distinct historic mineral occurrences: a tungsten‑molybdenum skarn (Lamb Mountain), an intrusion‑related molybdenum system (Cassiar Moly), and a polymetallic VMS zone (Lang Creek).
• Historical intercepts indicate significant grades of WO₃, MoS₂, Cu, Zn, Au and Ag, supporting the company’s district‑scale, multi‑phase mineralization model for Magno.

Key Details

• Property Expansion: Acquisition brings total Magno Project area to >37,200 ha across three claims.
• Lamb Mountain – Skarn (Historical):
• Diamond drilling: 0.36 % WO₃ over 24.9 m (incl. 0.49 % WO₃ over 16.7 m); 0.83 % MoS₂ over 12.8 m.
• Trenching: up to 1.65 % MoS₂ over 4.0 m; average 0.70 % WO₃ over 10 m, with samples up to 2.20 % WO₃.
• Cassiar Moly – Intrusion‑Related (Historical):
• Surface sampling: up to 14.50 % MoS₂ and 0.49 % W; multiple 2–4 % MoS₂ samples.
• Underground sampling: 4.17 % MoS₂ over 1 m; 1.64 % MoS₂ over 3 m.
• Diamond drilling: up to 164.6 m averaging ~0.024 % Mo.
• Lang Creek – VMS (Historical):
• Historical estimate (pre‑NI 43‑101) of 27,000 t grading 1.52 % Cu and 0.90 % Zn.
• Diamond drilling reported near‑surface sulphide lens consistent with the above estimate.
• Surface sampling: 1.7 g/t Au, 36 g/t Ag, 1.84 % Cu over 1 m.
• District‑Scale Implication: Combined presence of skarn, intrusion‑related, and VMS styles suggests a multi‑phase magmatic system capable of generating diverse critical and base/precious metal mineralization across the Magno district.
• Unexplored Potential: Depth potential at Lang Creek, strike extensions at Lamb Mountain, and broader system‑scale targets at Cassiar Moly remain open for future drilling.

Notable Quotes

“What makes these claims important is not a single result. The combination of skarn‑hosted tungsten‑molybdenum at Lamb Mountain, a large intrusion‑related molybdenum system at Cassiar Moly, and VMS copper‑zinc at Lang Creek… validates our geological thesis that the Magno district is driven by a large, multi‑phase magmatic system.” – Robert Birmingham, CEO

Materiality Assessment: Non‑Material – Neutral – The release provides a technical update based on historical data without new financing, resource estimates, or earnings impact.