Discover Zopkhito: Krakatoa’s Antimony Breakthrough

Highlights

• Krakatoa intersects visible antimony in underground and surface drilling

• Zopkhito advances as a strategic critical minerals project in Georgia

• Assay results and resource conversion work aim to underpin a maiden JORC estimate

Krakatoa’s Zopkhito drilling reveals widespread visible antimony and associated gold, supporting plans for a JORC-compliant resource and positioning the Georgian project within Europe’s evolving critical minerals supply landscape.

Antimony is increasingly recognised as a strategic component in flame retardants, alloys and energy-related technologies, and fresh exploration success can attract attention from investors following emerging critical minerals stories. Against this backdrop, Krakatoa Resources (ASX:KTA) has reported visible antimony mineralisation from both underground and surface drilling at the Zopkhito Antimony-Gold Project in Georgia, suggesting that this historic mining district may be entering a new chapter of modern exploration and assessment.

Zopkhito lies within a region that has hosted antimony and gold extraction for many years, yet much of the historic work predates contemporary exploration techniques, modern geological modelling and today’s focus on secure supply chains within Europe and Western-aligned markets. Krakatoa’s campaign aims to bridge this gap by testing historical records, verifying earlier resource estimates and building a foundation for a JORC-compliant mineral resource.

The latest update outlines intersections of visible antimony mineralisation in the majority of underground adit drill core and in most surface diamond drill holes. While assays remain pending, the combination of visual observations, structural interpretation and geological logging offers early insight into the style and continuity of mineralisation. This combination is central to Krakatoa’s strategy of validating the existing foreign resource, expanding the mineralised footprint and demonstrating that Zopkhito can support long-term development studies.

Within the broader universe of ASX mining stocks, an asset of this nature can stand out for its dual exposure to antimony and gold, along with a strategic location linking Europe, the Caucasus and Western markets.

What has Krakatoa discovered in the Zopkhito underground adit?

The underground adit at Zopkhito provides direct access to mineralised structures close to historical workings. Krakatoa has drilled multiple core holes from this adit, allowing detailed examination of vein systems, host rocks and alteration patterns in three dimensions.

According to the company’s update, nearly all of the adit holes encountered visible antimony mineralisation. These occurrences are typically associated with sulphide-bearing veins and veinlets, hosted within structurally prepared zones and lithological contacts that channelled mineralising fluids. In some intervals, the visual logging also indicates the presence of textures and alteration styles commonly associated with gold-bearing systems in orogenic and intrusion-related settings.

By drilling from within the adit, Krakatoa can:

• Obtain high-quality core from zones close to historical stopes and workings

• Map the orientation, thickness and continuity of antimony-rich veins

• Refine structural models that explain how mineralising fluids moved through the rock mass

• Identify additional targets along strike and down-dip for future drilling campaigns

The underground drilling provides early confirmation that mineralisation extends beyond isolated pockets, instead forming networks of veins that can potentially support resource estimation work, subject to assay results and further step-out drilling.

How significant is the surface diamond drilling at Zopkhito?

Surface diamond drilling complements the underground adit holes by testing mineralisation along strike and at depth, while also exploring untested zones in the broader project area. Krakatoa reports that the majority of surface diamond holes intersected visible antimony-rich veins, reinforcing the interpretation that the mineralised system has meaningful vertical and lateral continuity.

Surface drilling allows the team to:

• Link mineralised zones observed underground with broader structural trends at surface

• Test for continuity between historic workings and deeper targets

• Assess the potential width of mineralised corridors beyond immediate mine-adjacent zones

• Collect data for geotechnical, hydrogeological and metallurgical studies in due course

In combination, the underground and surface results provide a three-dimensional framework for Zopkhito. This framework underpins the next stage of geological modelling, guiding both the validation of historical resource data and the expansion of mineralised domains beyond the known footprint.

Why does antimony matter for European and Western supply chains?

Antimony is classified as a critical mineral in multiple jurisdictions due to its extensive use in flame retardants, military alloys, lead-acid battery components and various specialty applications. Global production has historically been concentrated in a limited number of countries, leading policymakers and manufacturers to seek more diversified and secure supply sources.

Zopkhito’s location in Georgia positions it close to European industrial hubs and within reach of Western markets that are increasingly focused on provenance, ESG performance and security of supply. A modern antimony-gold operation in this region could contribute to:

• Reduced reliance on single-country suppliers for antimony

• Enhanced resilience of European flame retardant and alloy supply chains

• Greater optionality for downstream users, from electronics manufacturers to defence-related industries

Krakatoa’s commentary on Zopkhito emphasises the potential for the project to evolve into a strategic asset as the market continues to focus on secure sourcing of critical minerals. While the ultimate scale and quality of the resource will depend on pending assays and future drilling, the early-stage narrative already aligns with policy objectives around diversification and resilience.

How does Zopkhito’s historic resource base feed into current work?

Zopkhito has long been recognised for high-grade antimony and notable gold content, recorded through historical operations and earlier resource estimates. However, many of those estimates predate current reporting standards and procedural expectations.

Krakatoa’s current program is specifically designed to:

• Validate historic drilling and underground sampling data

• Confirm the geometry and style of mineralisation using modern core drilling

• Collect samples for multi-element assaying, density measurements and metallurgical testing

• Rebuild the resource model using contemporary software, structural interpretation and QAQC protocols

The existing foreign resource estimate gives a starting point for understanding scale, yet Krakatoa’s goal is to convert this into a JORC-compliant mineral resource. This requires comprehensive due diligence on the historic dataset, infill and confirmatory drilling, and consistent sampling methodology across all new holes.

Assay results from the current campaign are expected to play a central role in this conversion process. They will help determine grade distribution, continuity and geological controls that feed directly into block models, classification of resource categories and subsequent scoping or preliminary economic assessments.

What does the presence of gold mean for project optionality?

Although antimony is the headline commodity, the presence of gold adds a second revenue stream that can influence project design and development pathways. In many antimony-gold deposits, gold occurs in association with sulphide minerals or in specific structural positions that overlap with antimony-rich zones.

For Zopkhito, gold offers several potential benefits:

• Additional revenue that can support project economics when combined with antimony

• Flexibility in processing route selection, particularly when considering co-recovery of metals

• Optionality for future exploration to focus on gold-dominant zones beyond immediate antimony corridors

Krakatoa’s drilling program pays close attention to gold as well as antimony, ensuring that any future resource statements and development concepts adequately reflect the multi-commodity nature of the deposit.

How is Krakatoa balancing Georgian and Australian exploration?

While Zopkhito is located in Georgia, Krakatoa also maintains exploration interests across Australia, targeting both critical minerals and precious metals. This dual geographic footprint allows the company to:

• Participate in European and Caucasus-region critical minerals narratives through Zopkhito

• Maintain exposure to domestic Australian projects across metals such as rare earths, base metals or gold

• Leverage knowledge from one jurisdiction to inform exploration approaches in another

Operating in Georgia requires close engagement with local communities, regulators and service providers, while Australian projects benefit from well-established mining frameworks and deep local expertise. Together, these portfolios create a diversified platform that can appeal to market observers following different regional and commodity themes across the ASX stock market.

How does Zopkhito compare with other ASX resource stories?

Zopkhito sits within a cohort of smaller exploration and development companies listed in the Australian market that are seeking to advance critical mineral projects across the globe. While major index constituents within the ASX 100 often dominate headlines, smaller explorers can contribute differentiated stories around niche commodities, emerging regions and early-stage discoveries.

In the context of ASX ordinaries stocks, Krakatoa’s Georgian project stands out by offering:

• Direct exposure to antimony, a commodity not widely covered by larger diversified miners

• A project with both historic production history and scope for modern reinterpretation

• A narrative centred on European and Western supply chain resilience for critical minerals

For those who focus on income-generating ASX dividend stocks, such early-stage explorers often play a different role in portfolio construction, typically aligning more with growth and thematic exposure rather than income. Thus, Zopkhito can be seen as part of a broader set of critical mineral stories that sit alongside, rather than directly compete with, larger and more mature producers.

What are the next steps for drilling, assays and resource work?

With visible antimony intersected in most adit and surface holes, attention now turns to assay results and detailed analysis. The upcoming phases of work are expected to include:

• Laboratory assays for antimony, gold and other pathfinder elements across the recent drill core

• Integration of new assays with historical data to refine grade models and continuity

• Ongoing structural interpretation to map vein sets, fault systems and host rock domains

• Preparation of an updated geological model that can support a maiden JORC-compliant mineral resource

Assays will help confirm whether visually logged antimony corresponds to economic grade intervals and will quantify the contribution of gold within the system. The results will also influence decisions about where to focus future drilling, such as down-dip extensions, step-outs along strike or new target areas highlighted by geophysical or geochemical surveys.

As the dataset grows, Krakatoa is expected to refine tonnage and grade expectations, determine appropriate cut-off assumptions and design preliminary conceptual mine plans. These steps provide the groundwork for more advanced studies, including potential scoping evaluations and early-stage economic analysis.

How could Zopkhito fit into the broader European critical minerals landscape?

Europe’s industrial base is increasingly focused on securing sustainable and transparent sources of critical raw materials. With many supply chains historically reliant on imports from a limited range of jurisdictions, policymakers have emphasised the need for diversified, responsibly managed projects closer to home.

Zopkhito, located in Georgia and aligned with Western-facing markets, presents an example of how resource development in the broader European region can respond to such demands. If exploration, resource conversion and future development studies proceed successfully, the project could:

• Contribute antimony and gold into Western value chains, complementing existing suppliers

• Provide a case study in modernising historic mining districts using contemporary standards

• Support local employment, training and infrastructure outcomes in Georgia

These factors mean that Zopkhito is not only an exploration story but also part of a larger conversation about how critical minerals are sourced, processed and integrated into European industrial ecosystems.

What does this mean for market watchers monitoring critical minerals?

For market watchers tracking critical minerals, Krakatoa’s progress at Zopkhito offers several key insights:

• Reactivation of historic districts: Projects with historical production can be revitalised through modern exploration, delivering new data that may confirm or redefine earlier resource concepts.

• Dual-commodity exposure: Combining antimony with gold can enhance project resilience by drawing on more than one revenue stream, especially in periods of commodity price fluctuations.

• Strategic geography: Assets bridging Europe, Western markets and established mining expertise in Australia can appeal to stakeholders seeking diversified geographic exposure.

Zopkhito’s journey from historic resource to potential JORC-compliant estimate will be of interest to those following the evolution of critical minerals supply chains, particularly in jurisdictions working to strengthen domestic or allied sourcing.