Rumble Resources’ Thunderstorm Project: Minerals Exploration Breakthrough

Rumble Resources Strikes Gold: Securing Full Ownership of Thunderstorm Project

Rumble Resources (ASX: RTR) has significantly strengthened its gold portfolio by acquiring the remaining 70% interest in the Thunderstorm Gold Project from joint venture partner IGO Limited. The acquisition, priced at $300,000 in Rumble shares plus a 1.05% NSR royalty, gives Rumble complete ownership of this highly prospective Fraser Range Province asset. With this strategic move, the company has positioned itself to apply advanced mineral exploration strategies to fully evaluate the project's potential.

High-Grade Gold Discoveries Show Significant Potential

The Rumble Resources Thunderstorm Project has already demonstrated its gold potential with impressive drill results from two key prospects:

Gazelle Prospect Highlights:

• 16m @ 6.69 g/t Au from 42m (including 4m @ 22.2 g/t Au)
• 6m @ 9.15 g/t Au from 48m
• 8m @ 1.31 g/t Au from 58m

Pion Prospect Highlights:

• 4m @ 3.80 g/t Au from 86m
• Gold anomalism across six consecutive drill holes spanning 1.2km

These results are particularly notable considering they were obtained from wide-spaced (1,500m) reconnaissance drilling, suggesting substantial exploration upside as the project advances to more detailed investigation. For investors new to the sector, understanding drilling results is crucial when evaluating the significance of these findings.

Dual Gold Deposit Potential Enhances Investment Appeal

What makes the Thunderstorm Project particularly attractive is its potential to host two distinct styles of gold deposits:

Palaeochannel Gold Deposits

The Gazelle and Pion prospects bear striking similarities to the palaeochannel gold deposits at Higginsville Gold Centre, where the Challenger deposit alone yielded over 230,000 ounces at 3.4 g/t gold. This comparison provides a compelling analog for Thunderstorm's commercial potential.

Primary Basement Gold Deposits

The wide zones of supergene gold anomalism with high-grade cores at Gazelle strongly suggest proximity to a primary basement source. Particularly telling is how gold grades increase up the basement slope toward a high point—a classic indicator of nearby primary mineralisation. These characteristics share similarities with porphyry and epithermal deposits found in other regions.

Understanding Palaeochannel Gold Deposits

Palaeochannel gold deposits form within ancient river systems where gold particles have been transported and concentrated over millions of years. These deposits can be particularly attractive mining targets for several reasons:

• Relatively shallow depth: Typically occurring within 100m of surface
• Predictable geometry: Following ancient river channels allows for targeted exploration
• Often amenable to simple processing: The gold is frequently coarse and free-milling

At the Rumble Resources Thunderstorm Project, research by IGO has identified three types of gold particles: alluvial gold grains, chemically regrown crystalline gold, and chemically plated gold on biogenic material. This diversity of gold forms increases the likelihood of economic concentrations within the project area.

Palaeochannel gold deposits are formed when ancient river systems erode gold from primary source rocks and deposit the particles downstream. Over geological time, these river channels become buried under younger sediments, preserving the concentrated gold layers.

The geological processes involved in palaeochannel formation include:

1. Erosion of primary gold deposits by flowing water
2. Transport of gold particles along river systems
3. Concentration of heavier gold particles in specific zones of the river channel
4. Burial of the gold-bearing channel by younger sediments
5. Possible secondary enrichment through groundwater processes

The identification of multiple gold particle types at Thunderstorm indicates a complex depositional history that may have enhanced gold grades through multiple enrichment mechanisms.

Next Steps: Targeted Exploration Program

Rumble is advancing the Thunderstorm Project with plans already underway for an infill aircore drilling campaign at the Gazelle prospect. This program will:

• Better define the geometry of the mineralised palaeochannel
• Test for extensions of the high-grade zones
• Potentially vector toward primary basement gold sources

The program will commence once heritage clearances are obtained, representing a near-term catalyst for the company.

Why Thunderstorm Elevates Rumble's Investment Profile

Rumble Resources has strategically positioned itself with a compelling gold project that offers:

1. Proven high-grade gold already discovered with minimal drilling
2. Multiple deposit style potential enhancing discovery opportunities
3. Fraser Range location in a province known for significant mineral discoveries
4. 100% ownership providing maximum leverage to exploration success
5. Clear pathway to advance with defined next steps

As Managing Director Peter Harold notes: "Based on this and the style of mineralisation we believe there is significant potential to discover large scale palaeochannel and primary basement hosted gold deposits."

Technical Details of the Thunderstorm Project

The Rumble Resources Thunderstorm Project comprises six granted exploration licences (E28/2528, E28/2529, E28/2595, E28/3219, E28/3240 and E28/3384) covering a total area of 348 square kilometres. The project lies over a major northeast trending terrane boundary (Newman Shear Zone) between the Fraser Zone and the Nornalup Zone.

The entire project area is under cover, primarily Eocene to Miocene sediments, and sits on the edge of the Eucla Basin. Previous exploration by IGO included 530 vertical air core drill holes over an area of approximately 40km by 20km on 1,500m line spacings, complemented by airborne geophysics including magnetics and electromagnetic surveys.

These exploration efforts revealed widespread gold anomalism from both the lower Cenozoic cover sequence and the underlying gneissic rocks. The higher-grade gold mineralisation discovered at Gazelle and Pion is associated with Eocene palaeodrainage systems and potential nearby basement gold sources. Furthermore, the region shares geological similarities with known copper mine production trends in nearby areas.

Acquisition Details

The transaction terms for Rumble's acquisition of the remaining 70% interest in the Thunderstorm Project include:

• A purchase price of $300,000 to be paid in Rumble fully paid shares at a deemed issue price of the 5-day VWAP immediately prior to the Execution Date
• The consideration shares will be issued without Rumble shareholder approval using the company's existing placement capacity available under ASX Listing Rule 7.1
• A 1.05% Net Smelter Return (NSR) royalty over three key exploration licences: E28/2528, E28/2595, and E28/2529

This acquisition structure allows Rumble to preserve cash while gaining full control of a highly prospective asset.

Investor Considerations

For investors seeking exposure to gold exploration with established discoveries and clear development pathways, Rumble Resources' consolidation of the Thunderstorm Project represents a compelling opportunity. The company has demonstrated strategic foresight in securing 100% ownership of a project with:

• Existing high-grade gold discoveries that provide a solid foundation for further exploration
• Location in the prospective Fraser Range Province, known for significant mineral discoveries
• Technical similarities to productive gold systems at Higginsville, providing a proven analogue
• A defined pathway for advancing the project through systematic exploration

As Rumble progresses its exploration program at Thunderstorm, investors should monitor upcoming drilling results, particularly from the planned infill aircore drilling at Gazelle, which could serve as a significant near-term catalyst for the company.

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