Cabral Gold Identifies New Mineralised Zone & Expands Oxide Footprint at Cuiú Cuiú, Brazil

• Drilling at the Mutum target, located in a 2-kilometre gap between two known gold deposits, has returned significant gold grades in primary rock for the first time
• Results indicate a previously unrecognised mineralised zone that may connect with existing deposits along the same northwest-trending structural corridor
• Near-surface gold intercepts across multiple holes suggest the PDM gold-in-oxide blanket now covers more than 40 hectares, up from a previously mapped 26 hectares
• The expanded oxide footprint was not included in Cabral's Phase 1 Preliminary Feasibility Study (PFS), representing potential upside to the existing resource base
• Cabral is targeting commercial gold production from its Phase 1 heap leach operation in the fourth quarter of 2026

Company Overview

Cabral Gold (TSXV: CBR | OTCQB : CBGZF), the story at Cuiú Cuiú is straightforward: the company holds a large, multi-deposit gold district in northern Brazil and is building a low-cost heap leach operation to begin producing gold later this year. What the latest drilling adds is a new layer of exploration upside, the kind that comes from testing ground between known deposits rather than drilling where gold has already been found.

The Cuiú Cuiú gold district sits in the Tapajós Region of Pará State, an area historically associated with one of the largest gold rushes in Brazilian history. Within the district, Cabral has defined gold deposits at Central, MG, PDM, and Machichie. The Central and PDM deposits sit roughly 2 kilometres apart along a northwest-trending geological corridor marked by a strong gold-in-soil anomaly and a magnetic signature consistent with widespread hydrothermal alteration, the kind of rock chemistry that tends to host gold mineralisation. Despite this prospective setting, the ground between these two deposits had been largely untested until recently.

The Mutum target sits in the middle of that gap, approximately 450 metres from PDM and 1.5 kilometres from Central. Cabral began testing Mutum with shallow reverse circulation drilling in late 2025, which returned encouraging results across multiple holes. The current programme followed up with deeper diamond core drilling designed to test whether those near-surface results reflected a meaningful primary gold system at depth.

What the Drilling Found

The headline result confirmed that primary gold mineralisation exists at depth within the gap between Central and PDM. The best hole intersected more than 20 metres of gold-bearing intrusive rock at an average grade of 1.6 grams per tonne gold, with a higher-grade core running above 5 grams per tonne gold. For context, Cabral's existing oxide resource at Central and Machichie, the basis for the current Phase 1 production plan  carries an average grade of 0.50 grams per tonne gold in oxide material. A primary intercept at more than three times that grade, in fresh rock between two established deposits, is a meaningful exploration signal.

Cabral interprets this result as evidence of a previously unrecognised mineralised zone controlled by one of two boundary faults that run through the corridor. The company further notes that this zone may connect with another known mineralised area called Central North, situated approximately 800 metres further along the same structural trend. If that connection holds, the implication is a mineralised system that links multiple zones across the full 2-kilometre length of the corridor a materially different picture than two isolated deposits with empty ground between them.

A second set of holes tested a different part of the same corridor, targeting the other boundary fault. Those holes returned gold in primary rock at lower grades, with visible gold observed in core samples. Cabral interprets these results as confirming the presence of the southern bounding fault connecting Central and PDM  structural evidence that the corridor hosts two parallel mineralised trends rather than one.

The Oxide Blanket Gets Bigger

The second significant outcome from the Mutum programme concerns near-surface gold rather than deep primary mineralisation. Several holes intersected low-grade gold values in the shallow oxidised material that sits above the fresh rock, at depths ranging from surface to roughly 10 to 12 metres. This oxidised material commonly referred to as a gold-in-oxide blanket is the same type of material that Cabral's Phase 1 heap leach operation is designed to process.

The distribution of these near-surface oxide intercepts across the Mutum area indicates that the PDM gold-in-oxide blanket is significantly larger than its previously mapped boundary of 26 hectares. The revised estimated extent now exceeds 40 hectares an increase of more than 50%. The practical significance is that the PDM oxide material was not included in the Phase 1 Preliminary Feasibility Study published in July 2025, meaning the current production plan and resource estimate do not yet reflect this additional oxide inventory.

President and Chief Executive Officer of Cabral Gold, Alan Carter noted:

"The reconnaissance drill results at Mutum are significant for two reasons. Firstly, they indicate the presence of a new mineralized zone in primary intrusive rocks between the PDM and Central gold deposits which may be a possible extension to those deposits, and secondly, the gold-in-oxide blanket at PDM appears to be significantly larger than previously thought."

Next Steps

Cabral has confirmed that additional drilling is planned at Mutum to test both the primary mineralised zone at depth and the expanded oxide blanket at surface. On the primary side, the priority is to establish whether the mineralisation intersected in the best hole connects to the Central North zone along the same structural trend, which would begin to define the scale of the new zone. On the oxide side, the goal is to determine whether the expanded PDM blanket carries sufficient grade and continuity to justify inclusion in a future resource estimate and potential expansion of the Phase 1 production base.

In parallel, Cabral continues to advance construction of its Phase 1 heap leach operation, with commercial gold production targeted for the fourth quarter of 2026. That milestone the company's first gold production remains the near-term catalyst investors are watching most closely.

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