GoldHaven Resources (CSE: GOH; OTCQB: GHVNF; FSE: 4QS) has provided an operational update on its ongoing auger drill program at the Copeçal Gold Project, located in Mato Grosso, Brazil. The program, which commenced on June 9, 2025, aims to evaluate subsurface gold mineralization beneath previously defined soil anomalies through systematic geochemical drilling.

“We are excited to have surpassed the first half of auger drilling on our Copeçal Gold project, with our first round of assays shipped for analysis. The initial work has been focused on our east target, while we anticipate shifting to the west target in the coming days which will give us more clarity on the anomalies prior to the initiation of diamond drilling.”

According to the company, 70% of the planned drilling has now been completed, totaling approximately 1,400 metres. Drilling has been carried out on both the East and West Gold-in-Soil anomalies, which were previously identified through geochemical sampling and geophysical surveys. GoldHaven’s geological team reports that drilling has intersected regolith and weathering profiles generally consistent with expectations at depths between 0 and 20 metres. In several cases, weathering has extended to depths of 30 metres, which may reflect localized deep weathering along structural corridors targeted for mineralization.

Assay and Sampling Update

A total of 350 samples have been collected from the East Target area and submitted to ALS Global Laboratories for analysis. Sample preparation is being conducted in Cuiabá, with final analyses to be completed at ALS’s laboratory in Belo Horizonte. Assay results are expected within three to four weeks.

The samples were collected at consistent two-metre intervals down the auger holes. Quality assurance and quality control (QA/QC) protocols were implemented during sampling, including the insertion of blank samples, certified reference standards, and duplicates at a rate of 10% of the total sample population. These measures align with industry-standard practices and are consistent with the quality control framework of ALS Global Laboratories.

Geophysical Survey Planned for July

GoldHaven has announced plans to conduct a Drone-borne Very Low Frequency (VLF) Electromagnetic Survey in July. The survey will target structural trends believed to be potential hosts for gold mineralization, extending across both the East and West Gold-in-Soil anomalies and their prospective strike extensions.

The integration of VLF electromagnetic data with auger geochemical results is expected to assist in refining geological and structural interpretations and determining optimal locations for future diamond drilling. The goal is to increase the precision and efficiency of the diamond drill targeting process.

Drilling Methodology and Objectives

The auger drilling is being executed in a systematic grid pattern at 100-metre by 50-metre spacing. Holes are being drilled vertically from surface down to the regolith-bedrock interface, typically ranging from 5 to 30 metres in depth. This approach is intended to provide high-resolution three-dimensional litho-geochemical data to characterize the distribution of gold and other pathfinder elements in the weathered profile.

According to the company, the data generated through this drilling phase will be instrumental in refining the existing subsurface geological and structural models, helping guide the next phase of exploration involving diamond drilling.

Background on the Copeçal Gold Project

The Copeçal Gold Project is located in the Juruena Gold Province within the broader Alta Floresta Gold Belt in Brazil. The region has been a target of gold exploration and development since the late 1970s. GoldHaven holds mineral tenements covering approximately 3,681 hectares within a geologically favorable orogenic belt known for hosting mesothermal shear-related and intrusion-related gold deposits.

The Juruena Magmatic Arc has been the subject of exploration and development by several companies and contains a range of gold deposit styles, including porphyry and epithermal systems. Notable deposits in the region include Tocantinzinho (G Mining Ventures), as well as Serabi and Aura’s X1 and Jaca projects.

Historic exploration activities at Copeçal include systematic soil sampling, auger and air-core drilling, rock geochemistry, and geophysical surveys. AngloGold Ashanti conducted exploration work on the project between 2010 and 2016, identifying multiple gold-bearing zones. Soil sampling and auger drilling carried out during this period delineated consistent gold and arsenic anomalies across several zones, supporting the project’s mineral potential.

Future Plans

Following completion of the auger drilling program, GoldHaven plans to shift focus to the western anomaly and then proceed to finalizing collar locations for a diamond drilling campaign. The integration of auger geochemistry, historical data, and upcoming VLF geophysics will be used to determine these drill targets. The company has not yet specified the timeline for the start of diamond drilling but has indicated that the current phase is designed to optimize targeting accuracy and reduce uncertainty in subsequent drill testing.

The above references an opinion and is for information purposes only. It is not intended to be investment advice. Seek a licensed professional for investment advice. The author is not an insider or shareholder of any of the companies mentioned above.