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

VANCOUVER, British Columbia, Feb. 27, 2026 (GLOBE NEWSWIRE) -- GoldHaven Resources Corp. (“GoldHaven” or the “Company”) (CSE: GOH) (OTCQB: GHVNF) (FSE: 4QS) is pleased to announce that it has entered into a Title Transfer Agreement dated February 23, 2026, with Steven Scott (the “Vendor”) to acquire a 100% interest in five mineral claims located in the Cassiar District of British Columbia (the “Property”). The Property comprises 231.362 hectares across five contiguous mineral claims (Claim Nos. 1127358, 1118681, 1117996, 1126824 and 1124840), with the project now spreading 37,204 hectares.

“Expanding Magno beyond 37,000 hectares further strengthens our control over what we interpret to be a large, zoned, intrusion-related polymetallic system,” commented Rob Birmingham, CEO of GoldHaven. “The confirmation of high-grade silver-lead-zinc mineralization, extensive tungsten-skarn development, elevated copper within intrusive rocks, and strong bismuth-tellurium pathfinder anomalies supports a porphyry-driven model at depth. With infrastructure in place and a rapidly advancing geological framework, we are positioning Magno for a disciplined 2026 drill program targeting copper-moly porphyry centres, CRD-style silver-lead-zinc zones, and critical-mineral potential across this district-scale asset.”

Pursuant to the terms of the agreement, the Company will issue an aggregate of 400,000 common shares (the “Compensation Shares”) to the Vendor as consideration for the acquisition. The Compensation Shares will be subject to a statutory hold period of four months and one day from the date of issuance in accordance with applicable securities laws. The Vendor will retain no net smelter return royalty or other encumbrance on the claims, and the Company will assume responsibility for applicable title transfer costs.

Magno Project Highlights

• 334 ppm Indium Discovery Confirms Critical Mineral Potential – Indium values up to 334 ppm associated with sphalerite (Zn), representing the highest recorded in the Cassiar District and highlighting Magno’s strategic relevance amid tightening global indium supply.
• High-Grade Silver-Lead-Zinc Results* – Grab samples returned up to 2,370 g/t Ag, >20% Pb, and 19.25% Zn from the Magno and D Zones. Notably, 45 of 357 samples exceeded 100 g/t Ag, confirming widespread high-grade mineralization.
• Strong & Widespread Tungsten Mineralization – 32 samples returned >1,000 ppm W, including a peak of 6,550 ppm W at Vines Lake, with consistent 500–5,000 ppm W values at Kuhn and Dead Goat, supporting the presence of a robust tungsten-skarn system.
• Fully Funded Advancement Strategy – The planned $2.0 million flow-through financing supports 2026 3D modelling, target refinement, drill planning, and continued verification of historical showings while expanding newly identified district-scale targets.

*Grab samples are selective by nature and may not represent average grades of mineralization

Magno Project Overview:

GoldHaven’s Magno Project is a district-scale polymetallic exploration asset spanning approximately 37,204 hectares in the prolific Cassiar region of northwestern British Columbia. The project hosts a large intrusion-related hydrothermal system including copper-gold, silver-lead-zinc, tungsten-skarn, and critical-mineral mineralization.

Property-wide geological mapping, sampling, and geochemical analysis define a classic porphyry-related metal zonation pattern, supporting interpretation of a large mineralizing system with stacked deposit environments and strong structural controls.

The newly acquired claims strategically expand GoldHaven’s land position in the Cassiar camp, an area known for its polymetallic mineralization including tungsten, molybdenum, silver, lead and zinc. The Company believes the addition of these claims enhances its district-scale exploration footprint and provides further optionality for future exploration and development initiatives in the region.

Critical Minerals – Flow-Through Financing

The Company is advancing its previously announced non-brokered flow-through financing of up to $2,000,000 through the issuance of flow-through common shares at a price of $0.265 per share. Proceeds will be used to incur eligible Canadian exploration expenses at the Magno Project in British Columbia, including permitting, drill targeting, and advancement of priority copper-gold, silver-lead-zinc (CRD), tungsten-skarn, and critical-mineral targets.

The offering remains subject to customary closing conditions and regulatory approvals. The Company may pay finders’ fees in accordance with applicable securities laws and exchange policies.

2026 Exploration Program

GoldHaven will leverage its expanded geological and geochemical dataset to advance Magno toward drill testing and evaluation of system scale.

Planned work includes:

• Refinement of 3D geological and metal zonation models
• Integrated structural, geochemical, and geophysical interpretation
• Prioritization of porphyry, CRD Ag-Pb-Zn, tungsten-skarn, and critical-mineral targets
• Drill targeting across priority zones
• Advancement of permitting and preparation for potential drilling
  

The 2026 program is designed to test system scale, vertical extent, and higher-grade vectors across the Magno district.

About GoldHaven Resources Corp.

GoldHaven Resources Corp. is a Canadian junior exploration Company focused on acquiring and exploring highly prospective land packages in North and South America. The Company’s projects include the flagship Magno Project, a district-scale polymetallic property adjacent to the historic Cassiar mining district in British Columbia. The Three Guardsman Project, which exhibits significant potential for copper and gold-skarn mineralization. The Copeçal Gold Project, a drill-ready gold project located in Mato Grosso, Brazil with a 6km strike of anomalous gold in soil samples. Three Critical Mineral projects with extensive tenement packages totaling 123,900 hectares: Bahia South, Bahia North and Iguatu projects located in Brazil.

On Behalf of the Board of Directors

Rob Birmingham, Chief Executive Officer

For further information, please contact:
Rob Birmingham, CEO
www.GoldHavenresources.com
info@goldhavenresources.com
Office Direct: (604) 629-8254

Qualified Person:

The technical and scientific information contained in this news release has been reviewed and approved by Lindsay Bottomer P.Geo. who is an independent Qualified Person as defined under NI 43-101 and a consultant of the Company.

Neither the CSE nor its Regulation Services Provider (as that term is defined in the policies of the CSE- Canadian Securities Exchange) accepts responsibility for the adequacy or accuracy of this release.

Cautionary Statements Regarding Forward Looking Information

This news release contains forward-looking statements and forward-looking information (collectively, “forward-looking statements”) within the meaning of applicable Canadian and U.S. securities legislation, including the United States Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical fact, included herein including, without limitation, the possible acquisition of the future projects, the Company's expectation that it will be successful in enacting its business plans, and the anticipated business plans and timing of future activities of the Company, are forward-looking statements. Although the Company believes that such statements are reasonable, it can give no assurance that such expectations will prove to be correct. Forward-looking statements are typically identified by words such as: “believes”, “will”, “expects”, “anticipates”, “intends”, “estimates”, “plans”, “may”, “should”, “potential”, “scheduled”, or variations of such words and phrases and similar expressions, which, by their nature, refer to future events or results that may, could, would, might or will occur or be taken or achieved. In making the forward-looking statements in this news release, the Company has applied several material assumptions, including without limitation, that there will be investor interest in future financings, market fundamentals will result in sustained precious metals demand and prices, the receipt of any necessary permits, licenses and regulatory approvals in connection with the future exploration and development of any future projects in a timely manner, the availability of financing on suitable terms for exploration and development of future projects and the Company's ability to comply with environmental, health and safety laws.

The Company cautions investors that any forward-looking statements by the Company are not guarantees of future results or performance, and that actual results may differ materially from those in forward-looking statements as a result of various factors, including, operating and technical difficulties in connection with mineral exploration and development activities, actual results of exploration activities, the estimation or realization of mineral reserves and mineral resources, the inability of the Company to obtain the necessary financing required to conduct its business and affairs, as currently contemplated, , the inability of the Company to enter into definitive agreements in respect of possible Letters of Intent, the timing and amount of estimated future production, the costs of production, capital expenditures, the costs and timing of the development of new deposits, requirements for additional capital, future prices of precious metals, changes in general economic conditions, changes in the financial markets and in the demand and market price for commodities, lack of investor interest in future financings, accidents, labour disputes and other risks of the mining industry, delays in obtaining governmental approvals, permits or financing or in the completion of development or construction activities, changes in laws, regulations and policies affecting mining operations, title disputes, the inability of the Company to obtain any necessary permits, consents, approvals or authorizations, including by the Exchange, the timing and possible outcome of any pending litigation, environmental issues and liabilities, and risks related to joint venture operations, and other risks and uncertainties disclosed in the Company's latest interim Management's Discussion and Analysis and filed with certain securities commissions in Canada. All of the Company's Canadian public disclosure filings may be accessed via www.sedarplus.ca and readers are urged to review these materials.

Readers are cautioned not to place undue reliance on forward-looking statements. The Company undertakes no obligation to update any of the forward-looking statements in this news release or incorporated by reference herein, except as otherwise required by law.

A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/0ae65322-e635-4aa5-9ad3-cec418cca1bf