GoldHaven Resources Completes Diamond Drilling at Copeçal Gold Project, Reports Sulphide Mineralisation at East Target

Author of the article:You can save this article by registering for free here. Or sign-in if you have an account.VANCOUVER, British Columbia, Dec. 17, 2025 (GLOBE NEWSWIRE) — GoldHaven Resources Corp. (“GoldHaven” or the “Company”) is pleased to provide a comprehensive update on its inaugural diamond drilling program at the Copeçal Project, further to its previous press releases announcing the commencement of drilling, the intersection of sulphide mineralisation in Hole COPE-PDH-004, and the subsequent drilling of a follow-up Hole COPE-PDH-009.Subscribe now to read the latest news in your city and across Canada.Subscribe now to read the latest news in your city and across Canada.Create an account or sign in to continue with your reading experience.Create an account or sign in to continue with your reading experience.HighlightsGet the latest headlines, breaking news and columns.By signing up you consent to receive the above newsletter from Postmedia Network Inc.A welcome email is on its way. If you don't see it, please check your junk folder.The next issue of Top Stories will soon be in your inbox.We encountered an issue signing you up. Please try againInterested in more newsletters? Browse here.The Company confirms that the drilling program has now been successfully completed, representing the first diamond drilling campaign ever conducted at the Copeçal Project. A total of nine diamond drill holes were completed for a combined drill meterage of 1085.70m, targeting two priority gold-in-soil anomalies located in the eastern and western portions of the project area.Figure 1. Location of diamond drill holes completed in the inaugural program testing the Copeçal Targets (East and West).Table 1: Tabulation of drilling statistics from the inaugural diamond drilling phase at the Copeçal Targets (East and West). Eastern Gold-in-Soil Anomaly – Sulphide Mineralisation and Follow-Up DrillingAs previously reported, Hole COPE-PDH-004 intersected a substantial sulphide-bearing interval encountered during the program, which prompted the Company to drill Hole COPE-PDH-009 to further investigate this mineralised zone.Key geological observations from drilling at the eastern anomaly include:*Bornite is a copper-iron sulphide mineral commonly associated with hydrothermal mineral systems, including porphyry- and structurally controlled environments. While the presence of bornite and other sulphides does not confirm the presence of economic mineralisation, this assemblage indicates multi-phase hydrothermal fluid activity and provides an important geological vector that will be further assessed once assay results are available.Hole COPE-PDH-009 was designed to test the continuity and geological context of the sulphide-bearing interval intersected in Hole COPE-PDH-004. All core from these holes is being logged and sampled, with analytical results pending.Figure 2: Schematic section showing the relative location of holes COPE-PDH-004 and follow up hole COPE-PDH-009 which intersected sulphide mineralization (bornite-chalcopyrite-pyrite associated with phyllic (sericite-quartz-pyrite-carbonate) alteration. Figure 3: Images of disseminated sulphide mineralization intersected in COPE-PDH-004 and follow up hole COPE-PDH-009 (bornite-chalcopyrite-pyrite associated with phyllic (sericite-quartz-pyrite-carbonate) alteration. Western Gold-in-Soil Anomaly – Deep Saprolite ProfileDrill holes COPE-PDH-005 through COPE-PDH-008, which targeted the western gold-in-soil anomaly, intersected a substantially thicker saprolite profile extending to approximately 60 metres downhole.While no visible sulphides were observed in fresh core, the following geological features were logged:Accordingly, assay results from saprolite intervals will be required to properly evaluate the gold potential of the western anomaly.Figure 4: Image showing plan and section through diamond holes COPE-PDH-005, 007 and 008, West Target, Copeçal Project.

Regional Geological ContextThe Copeçal Project is located within the broader Alta Floresta Mineral Province, a Paleoproterozoic belt recognised for hosting multiple gold and copper occurrences. Mineralisation within the region is commonly associated with:These regional characteristics provide important geological context for the sulphide and alteration assemblages observed at Copeçal and will inform ongoing interpretation and future exploration planning.Sampling, Assays and Next StepsThe Company emphasises that mineral exploration is inherently high-risk, particularly at an early stage, and that geological observations alone are not indicative of economic mineralisation. Nevertheless, GoldHaven believes the geological knowledge gained from this inaugural diamond drilling program has significantly advanced the understanding of the Copeçal Project and represents an important step toward refining future exploration strategies.GoldHaven remains encouraged by the results to date and looks forward to providing further updates as analytical results become available.Rob Birmingham, CEO of GoldHaven Resources, commented:“Intersecting sulphide mineralisation in Hole COPE-PDH-004 and subsequently in follow-up Hole COPE-PDH-009 at our East Target during a first-pass drilling program has provided valuable new geological insights. These results continue to enhance our understanding of the system as we integrate geological, structural, and geochemical data to refine targeting across both the East and West anomalies, as well as other prospective targets identified from our newly developed 3D diamond drilling dataset at Copeçal.”About the Copeçal Gold Project: A Brief History The Copeçal Gold Project is strategically situated within the Alta Floresta Gold Province, a historically productive region that has yielded substantial gold discoveries since the late 1970s. GoldHaven’ s tenements cover a total of 3,681 hectares in a geologically favourable setting within the Juruena Gold Province of Brazil.Figure 5: Location of the Copeçal Gold Project within Alta Floresta gold province, with competitor locations.

The Juruena Gold Province, also known as the Juruena Magmatic Arc, is an orogenic belt highly prospective for mesothermal shear-related and intrusion-related gold deposits, such as G-Mining’s Tocantinzinho deposit. Additionally, the region hosts recently identified porphyry-style deposits (e.g., Serabi, Jaca) and epithermal-style deposits (e.g., X1, Aura). The presence of multiple deposit styles, along with the confirmation of large-scale gold deposits in the Juruena Province of Brazil, underscores the significant potential of the Copeçal Gold Project.Recent exploration programs, including geochemical soil sampling, drone-mounted magnetometry surveys, and historical drilling data, indicate the presence of multiple gold-bearing structures. Notably, AngloGold Ashanti previously conducted systematic exploration on the property from 2010 to 2016, including auger and air-core drilling, geophysical surveys, and rock geochemistry, identifying multiple zones of anomalous gold mineralization.The Copeçal Gold Project benefits from extensive historical work, with AngloGold Ashanti’s exploration confirming gold and arsenic anomalies, indicative of significant mineralization potential. Soil sampling grids and follow-up auger drilling in key areas revealed consistent gold values over wide zones, further supporting the presence of a substantial mineralized system.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 (i) the flagship Magno Project, a district-scale polymetallic property adjacent to the historic Cassiar mining district in British Columbia; (ii) the Three Guardsman Project, which exhibits significant potential for copper and gold-skarn mineralization; (iii) the Copeçal Gold Project, a drill-ready gold project located in Mato Grosso, Brazil with a 6km strike of anomalous gold in soil samples; and (iv) three critical mineral projects with extensive tenement packages totalling 123,900 hectares: Bahia South, Bahia North and Igautu projects located in Brazil.Qualified Person:The scientific and technical information disclosed in this document has been reviewed and approved by Jonathan Victor Hill, B.Sc. Hons, FAusIMM, an independent Qualified Person consistent with NI 43-101 and Country Manager of GoldHaven.On Behalf of the Board of Directors Rob Birmingham, Chief Executive OfficerFor further information, please contact: Rob Birmingham, CEOwww.GoldHavenresources.cominfo@goldhavenresources.comOffice Direct: (604) 629-8254The CSE and Information Service Provider have not reviewed and does not accept responsibility for the accuracy or adequacy of this release.Forward-Looking StatementsThis news release contains “forward-looking information” within the meaning of applicable Canadian securities legislation. Often, but not always, forward-looking information and information can be identified by the use of words such as “plans”, “expects” or “does not expect”, “is expected”, “estimates”, “intends”, “anticipates” or “does not anticipate”, or “believes”, or variations of such words and phrases or state that certain actions, events or results “may”, “could”, “would”, “might” or “will” be taken, occur or be achieved. Actual future results may differ materially. In particular, this news release contains forward-looking information relating to the Company and the Property. The forward-looking information reflects management’s current expectations based on information currently available and are subject to a number of risks and uncertainties that may cause outcomes to differ materially from those discussed in the forward-looking information. Such risk factors may include, among others, but are not limited to: general economic conditions in Canada and globally; industry conditions, including governmental regulation and environmental regulation; the availability of capital on acceptable terms; the need to obtain required approvals from regulatory authorities; stock market volatility; competition for, among other things, skilled personnel and supplies; incorrect assessments of the value of acquisitions; geological, technical, processing and transportation problems; changes in tax laws and incentive programs; failure to realize the anticipated benefits of acquisitions and dispositions; and the other factors. Although the Company believes that the assumptions and factors used in preparing the forward-looking information are reasonable, undue reliance should not be placed on such information and no assurance can be given that such events will occur in the disclosed time frames or at all. Factors that could cause actual results or events to differ materially from current expectations include: (i) adverse market conditions; and (ii) other factors beyond the control of the Company. New risk factors emerge from time to time, and it is impossible for the Company’s management to predict all risk factors, nor can the Company assess the impact of all factors on Company’s business or the extent to which any factor, or combination of factors, may cause actual results to differ from those contained in any forward-looking information. The forward-looking information included in this news release are made as of the date of this news release and the Company expressly disclaims any intention or obligation to update or revise any forward-looking information whether as a result of new information, future events or otherwise, except as required by applicable law. Additional information identifying risks and uncertainties that could affect financial results is contained in the Company’s filings with Canadian securities regulators, which are available on the Company’s profile at www.sedarplus.ca.Photos accompanying this announcement are available at:https://www.globenewswire.com/NewsRoom/AttachmentNg/499b6aa4-501f-42f5-a25f-108d0995ba33https://www.globenewswire.com/NewsRoom/AttachmentNg/e01f4419-249c-4262-9a70-60dea3e55ac3https://www.globenewswire.com/NewsRoom/AttachmentNg/698891f8-45c2-4a1e-a927-9e1579982831https://www.globenewswire.com/NewsRoom/AttachmentNg/0519c19a-de30-4ab6-b86e-e425a89391b7https://www.globenewswire.com/NewsRoom/AttachmentNg/09870771-64bf-4e7e-abb5-fc7b63e9dc68Postmedia is committed to maintaining a lively but civil forum for discussion. Please keep comments relevant and respectful. Comments may take up to an hour to appear on the site. 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