GoldHaven Unveils Extensive Mineral Zonation at the Magno Project in British Columbia

GoldHaven Resources Corp. (“GoldHaven” or the “Company”) has released a detailed summary of the property-scale mineral zonation identified at its Magno Project, located in the Cassiar Terrane of northwestern British Columbia. This latest news release outlines integrated geological mapping, sampling and geochemical studies that point to a classic porphyry-related metal zoning system. The findings support the interpretation of an intrusion-driven mineral system with significant copper, silver, zinc, lead, tungsten, and other critical mineral targets. These results build on historical mineral data and enhance the evolving geological model and drill targeting strategy for the Magno property.

Top Highlights from the Zonation Analysis

GoldHaven’s announcement emphasizes several key discoveries and insights from the property-wide assessment:

• Property-scale metal zonation supports a porphyry source model with proximal copper-gold-silver and more distal silver-lead-zinc mineralization.
• Historical silver-lead-zinc occurrences have been validated at the Magno and D Zones.
• Tungsten mineralization has been confirmed at the Kuhn and Dead Goat zones, which aligns with high-temperature skarn systems.
• Copper values as high as 6,660 ppm have been measured at Magno, including elevated copper present within granite rocks, suggesting a magmatic source for these metals.
• High concentrations of pathfinder elements, including bismuth (up to 10,000 ppm) and tellurium (up to 67 ppm), indicate structural fluid pathways and high-temperature mineralizing processes.

Geological Setting and Exploration Rationale

The Magno Project’s geological backdrop played a significant role in drawing GoldHaven’s attention. The property lies within a favourable geological environment where Cretaceous-age granitic intrusions are situated against major thrust faults — a setting often linked to porphyry and skarn mineral systems. These structures have historically hosted silver, lead, zinc and tungsten mineralization, as well as molybdenum-copper porphyry stocks.

GoldHaven’s recent field programs aimed to verify these historical surface mineral occurrences while establishing a contemporary geochemical database to guide a system-wide geological interpretation. Through this work, the company has built a more complete understanding of the distribution and types of mineralization present across the property.

Key Metal Results Across the Magno Property

The geochemical analysis has produced several noteworthy results for metal content across different zones of the Magno Project:

• Silver, lead and zinc grades are highest at the Magno and D Zones, confirming robust replacement-style mineralization.
• Zinc anomalies — including up to 13.8% zinc at Kuhn and 8.37% at Dead Goat — highlight significant base metal potential.
• Copper enrichment extends not just at surface showings but also within granite rocks on the property, with values up to 1,760 ppm copper within intrusive rocks — representing the highest directly sampled intrusive rock copper value to date.
• Tungsten mineralization appears consistent with high-temperature skarn and porphyry systems, especially at the Kuhn and Dead Goat showings.
• Elevated pathfinder elements, such as bismuth, tellurium, antimony and indium, suggest deep structural fluid conduits and further point toward a complex and extensive mineral system.

Porphyry-Style Zonation and Comparative Systems

Mineral zonation at Magno follows a classic pattern associated with porphyry systems. It transitions from proximal copper-gold-silver±bismuth-tellurium±tungsten zones through intermediate silver-lead-zinc areas, to more distal zinc-rich replacement styles of mineralization. Structural features such as faults and conduits at Kuhn and Dead Goat are believed to have focused high-temperature metal-rich fluids, forming skarn and carbonate replacement mineralization.

At a larger scale, the zonation pattern at Magno is comparable to well-known polymetallic systems such as Morococha in Peru. Geological and metal associations also show similarities with Coeur Mining’s Silvertip Mine north of the Magno Project — particularly in terms of structural controls and metal distribution. However, Magno is distinguished by its broader suite of metals, including tungsten, copper, bismuth, tellurium and indium, which may point to a more compositionally diverse system with significant multi-commodity potential.

Corporate Perspective and Next Steps

GoldHaven’s leadership views these results as significant progress in defining Magno as a large, zoned, intrusion-related mineral system with substantial exploration upside. The combination of verified high-grade mineralization, an expanded geochemical dataset and classic porphyry-style zonation supports ongoing exploration activities and future drilling plans.

The company plans to use the expanded data to refine 3D geological and metal-zonation models, further prioritizing targets for porphyry copper-molybdenum, carbonate replacement lead-zinc-silver, tungsten-skarn and critical mineral mineralization. These models will support drill targeting and permitting efforts across key areas of the Magno property.

About the Magno Project

The Magno Project is a district-scale exploration asset covering approximately 36,973 hectares in the Cassiar region of northwestern British Columbia. The property lies just three kilometres south of the historic mining town of Cassiar and is intersected by Highway 37, offering notable access and infrastructure advantages compared to many early-stage exploration projects.

The project adjoins mineral claims held by Cassiar Gold Corp. and Coeur Mining Inc., placing GoldHaven within a productive mining corridor with active operators engaged in both precious and polymetallic systems. Proximity to regional supply hubs — including Dease Lake, Watson Lake and Whitehorse — as well as potential access to hydroelectric infrastructure bolsters the project’s logistical and future development potential.

About GoldHaven Resources Corp.

GoldHaven Resources Corp. is a Canadian exploration company targeting high-potential mineral assets across the Americas. Its portfolio includes the flagship Magno Project in British Columbia, the Three Guardsman Project with copper and gold-skarn potential, and the Copeçal Gold Project in Brazil — a drill-ready gold asset with significant strike potential. Additionally, the company controls three critical mineral projects in Brazil totalling 123,900 hectares, further diversifying its exploration focus.

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