GoldHaven Chases Sulphide Signal in Brazil's Rich Gold Province

VANCOUVER, BC – December 02, 2025 – In the world of junior mineral exploration, progress is measured in meters drilled and geological clues uncovered. For GoldHaven Resources Corp. (CSE: GOH), a recent update from its Copeçal Gold Project in Brazil represents a pivotal moment where routine drilling has given way to a targeted chase, fueled by the project's most significant subsurface discovery to date.

From Anomaly to Action: Reading the Subsurface Signs

The company announced the completion of eight diamond drill holes in its maiden program at Copeçal, but the real story lies between holes four and nine. Hole COPE-PDH-004, drilled at the project's "East Target," intersected a zone of disseminated pyrite-chalcopyrite sulphide mineralization from a depth of 79 meters down to the end of the hole at 100.25 meters. While visually encouraging, the geological significance is far greater. This sulphide interval, associated with phyllic alteration, is the first tangible, subsurface evidence that could explain the robust gold-in-soil anomalies previously identified on the surface. It's the critical link explorers seek, connecting surface geochemistry "smoke" to a potential mineralized "fire" at depth.

The company's reaction was swift and strategic. Instead of sticking to the original plan, GoldHaven immediately approved a ninth drill hole, currently in progress. This new hole is not a reconnaissance probe but a deliberate step-out, designed to test the depth extension of the mineralization found in Hole 4. This pivot underscores a disciplined, data-driven approach to exploration capital.

"We are encouraged by the progress made during this initial drill campaign at Copeçal,” stated Rob Birmingham, President & CEO of GoldHaven Resources, in the official release. “The sulphide interval intersected in Hole COPE-PDH-004 is the strongest subsurface evidence we’ve seen to date supporting the robust gold anomalism outlined at surface. Our decision to add a ninth follow-up hole is a direct response to this promising development."

The Legacy of a Major and the Logic of a Junior

GoldHaven’s confidence is not built in a vacuum. The Copeçal project carries a notable pedigree, having been systematically explored by mining giant AngloGold Ashanti between 2010 and 2016. That campaign, which saw over USD $1 million in investment, included extensive soil sampling, geophysics, and shallow drilling that successfully delineated the very gold and arsenic anomalies GoldHaven is now testing at depth. AngloGold’s work confirmed the presence of a large-scale mineralized footprint but ultimately did not advance to deeper diamond drilling.

For a junior explorer like GoldHaven, with a market capitalization around CAD $5 million and a modest cash position, this historical dataset is invaluable. It represents a significant de-risking of the project, allowing the company to focus its limited capital on high-probability targets rather than starting from scratch. GoldHaven has strategically layered modern exploration techniques, including high-resolution drone magnetometry and extensive auger drilling, atop AngloGold's foundational work to build a comprehensive 3D model of the near-surface gold distribution and refine its drill targets.

A Prolific Province: The Allure of Alta Floresta

The project’s potential is amplified by its strategic location. Copeçal sits within Brazil's famed Alta Floresta Gold Province, a segment of the Juruena Magmatic Arc that has been a hotbed of gold discovery since the late 1970s. This is not just any patch of ground; it is a geological province known for hosting multiple types of significant gold deposits, from mesothermal shear-hosted systems to large-scale porphyry and epithermal deposits.

The region is home to major projects and established players, providing a crucial benchmark for what a discovery here could mean. G-Mining’s major Tocantinzinho deposit is a prime example of the district's potential. Other neighbors like Serabi Gold and Aura Minerals have also demonstrated the area’s capacity to host various deposit styles. The confirmation of pyrite and chalcopyrite mineralization in GoldHaven's drilling is consistent with the geological signatures of other productive systems in the province, adding another layer of validation to the exploration model.

The High-Stakes Wait for Assays

Despite the promising geological indicators and strategic location, the ultimate value of the sulphide intersection in Hole 4 remains unquantified. The market and the company now enter a crucial waiting period for the assay results, which will provide the definitive gold and copper grades from the mineralized core. These pending results from Hole 4, along with samples from the first two holes, represent the next major catalyst for the project.

Positive assays would significantly de-risk the Copeçal project, likely unlocking access to further capital needed for a more aggressive, multi-phase drill program to define the scale of the discovery. The exploration journey has also presented challenges; drilling at the "West Target" encountered an unexpectedly thick layer of saprolite—deeply weathered rock—to about 50 meters, complicating the interpretation of the underlying bedrock. This is a common reality in tropical exploration, reinforcing the iterative nature of the discovery process.

With the initial nine-hole reconnaissance phase concluding this week, all eyes will be on the forthcoming lab results. While the visual evidence has provided a compelling reason for optimism, it is the quantitative data from the assays that will determine whether GoldHaven has simply found a promising geological feature or has drilled into the edge of a significant new discovery in one of South America's most productive gold belts.