| GoldHaven Advances Drilling at Copecal Gold Project; East Anomaly Phase Completed 
 globenewswire.com
 
 October 29, 2025 09:00 ET                                 | Source:                                GoldHaven Resources Corp.
 
 VANCOUVER, British Columbia, Oct.  29, 2025  (GLOBE  NEWSWIRE) -- GoldHaven Resources Corp. (CSE: GOH | OTCQB: GHVNF |  Frankfurt: 4QS) (“GoldHaven” or the “Company”) is pleased to provide an  update on ongoing exploration activities at its 100%-owned Copeçal  Project in Brazil, where the Company is advancing a 1,200-metre diamond  drilling program designed to test key gold-in-soil and geophysical  anomalies.
 
 Program Highlights
 
 
 To  date, four diamond drill holes totaling approximately 420 metres have  been completed along a 200-metre strike length of the East Anomaly, one  of several high-priority gold targets at Copeçal. The fifth hole of the  program was collared today, marking a key milestone for the project as  it represents the first-ever drill test of the West Anomaly—a large  gold-in-soil and auger anomaly spatially associated with a strong VLF  conductive feature previously outlined by the Company.Four diamond drill holes completed totaling ~420 metres at the East AnomalyFifth hole collared, marking the first-ever drill test of the West AnomalyStrong structural deformation and hydrothermal alteration intersected in multiple holes in the EastInitial assay results expected shortly
 
 
 
  
 Figure 1: Map outlining diamond drill holes at east target on Copeçal gold project
 
 Drilling  has intersected a sequence of sheared quartz–sericite schists and  gneissic basement rocks displaying strong hydrothermal alteration,  including zones of intense silicification and chlorite–sericite  alteration. Intervals of geological interest, where structural  deformation and alteration intensity are most pronounced, were  encountered over drilled thicknesses of approximately 10 to 15 metres  (estimated true width) and are interpreted to represent structurally  controlled zones with potential for gold enrichment.
 
 Sampling  from the first two holes has been completed: CPDDH001 samples have been  delivered to ALS Laboratory for analysis, and CPDDH002 samples are  currently en route to the ALS sample preparation facility in Cuiabá,  Brazil. Sampling of holes CPDDH003 and CPDDH004 is underway, with  results to be released as they become available.
 
 
 
  
 Figure 2: Preparing samples from core to be readied for shipment to ALS Laboratory
 
 GoldHaven  will continue advancing the program over the coming weeks, integrating  geological, structural, and geochemical data to refine targeting along  both the East and West anomalies. Assay results from the initial drill  holes are expected in the near term.
 
 Rob Birmingham, CEO of GoldHaven Resources, commented:
 
 “We  are very encouraged by the early geological observations from Copeçal.  The alteration styles and structural features we’re seeing are  consistent with a robust hydrothermal gold system. With drilling now  underway at the West Anomaly, we’re testing a brand-new target area that  has strong potential to deliver meaningful results for our  shareholders. We look forward to providing assay updates as they become  available.”
 
 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.
 
 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.
 
 
 
  
 
 Figure 3: Location of the Copeçal Gold Project within the prolific Juruena Gold Belt
 
 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 Officer
 
 For further information, please contact:
 
 Rob Birmingham, CEO
 www.GoldHavenresources.com
 info@goldhavenresources.com
 Office Direct: (604) 629-8254
 
 The  CSE and Information Service Provider have not reviewed and does not  accept responsibility for the accuracy or adequacy of this release.
 
 Forward-Looking Statements
 This  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:
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