Tabba Tabba Project

Project Overview

Pilbara WA

Tabba Tabba Project is an advanced lithium and tantalum development project located on granted Mining Leases just 80km by road from Port Hedland, WA. It is near some of the world’s largest hard-rock lithium mines, situated 47km by road from Pilbara Minerals’ 414Mt Pilgangoora Project and 87km by road from Mineral Resources’ 259Mt Wodgina Project.

One of four strategic LCT (lithium-caesium-tantalum) pegmatite assets previously owned by Sons of Gwalia alongside Greenbushes, Pilgangoora and Wodgina; Tabba Tabba is the last of these tier-1 assets to be systematically explored for lithium.

Wildcat acquired the project in 2023 and rapidly commenced exploration and drilling. To date, Wildcat has defined a 3.5km long LCT pegmatite field hosting multiple stacked pegmatites (Leia, Luke, Chewy, Tabba Tabba, Han and Hutt), with outstanding lithium grades and scale potential.

Strategic Positioning

With direct road access to Port Hedland, proximity to existing lithium operations, and a scalable mineralised system, Tabba Tabba is uniquely positioned for rapid development as WA’s next major lithium mine. The project benefits from:
• Existing Mining Leases
• Strategic location – 80km from port
• Large-scale spodumene-dominant pegmatites
• Large and high-confidence maiden Resource (94% Indicated)
• Regional exploration ongoing
• Low-cost operation
• Excellent PFS (Preliminary Feasibility Study) results
• Advancing to a Definitive Feasibility Study (DFS).

2025 Pre-Feasibility Study (PFS) Highlights

In July, Wildcat released a PFS demonstrating the technical and economic potential of the Tabba Tabba Project as a stand-alone hard-rock lithium development:
• Free cash flow (FCF) of A$3.2 billion¹ (post tax) and NPV81 (post tax) of A$1.2 billion
• 17-year Life of Mine, 7.8:1 strip ratio
• Plant throughput of 2.2Mtpa expanding to 4.5Mtpa
• Infrastructure CAPEX A$443M; pre-strip A$144M (S1& S2)
• Contingency: ~15% Capital, ~10% Opex
• C1 Operation Cost (FOB) of US$541/t of concentrate
• All-In Sustaining Cost (AISC) of US$658/t of concentrate
• Avg. SC5.5 production – Stage 1: 295Ktpa, Stage 2: 565Ktpa
• Chewy, Han, and Hutt pegmatites to be added to the DFS mine plan.

1FCF and NPV8% based on FOB SC6 price US$1,384/t (long-term Broker Consensus) and FX rate AUD/USD = $0.70

Refer PFS Announcement 30 July 2025 https://wcsecure.weblink.com.au/pdf/WC8/02971840.pdf 

Wildcat is on track to deliver a DFS for Tabba Tabba in 2026.

Major Pegmatite Discoveries

Leia Pegmatite

Leia is a large, continuous mineralised body with excellent widths and grades, open in multiple directions.
Key intercepts include:
– 180m @ 1.1% Li₂O from 206m (TARC148) (est. true width)
– 119.2m @ 1% Li₂O from 334.3m (TADD010) (est. true width)
– 105.3m @ 1.1% Li₂O from 213.7m (TARC259AD) (est. true width)
– 99.0m @ 1.2% Li₂O from 207.0m (TARC234D) (est. true width)
– 94.0m @ 1.0% Li₂O from 206.0m (TARC154AD) (est. true width)

Leia is now being drilled at depth and along strike, with expansion potential from both mineralised extensions and parallel stacked pegmatites.

Luke Pegmatite

Luke is a blind discovery sitting beneath Leia and represents a second stacked mineralised system. Highlights include:
– 54.4m @ 1.2% Li₂O from 267.9m (TADD030)
incl. 20.5m @ 1.5% Li₂O from 297.5m
and 25.0m @ 1.2% Li₂O from 363.9m
– 61.0m @ 1.1% Li₂O from 227.0m (TARC350D) (37.8m est. true width)
incl. 31.0m @ 1.6% Li₂O from 228.0m (19.2m est. true width)

Luke demonstrates the vertical scale and potential for multiple stacked systems, confirming Tabba Tabba’s world-class potential. Luke, a blind discovery sitting underneath Leia, has returned:
– 54.4m @ 1.2% Li₂O from 267.9m (TADD030) (est. true width) and
– 20.5m @ 1.5% Li₂O from 297.5m and
– 25.0m @ 1.2% Li₂O from 363.9m
– 61.0m @ 1.1% Li₂O from 227.0m (TARC350D) (37.8m est. true width)
including 31.0m @ 1.6% Li₂O from 228.0m (19.2m est. true width)

Wildcat’s discovery of Luke confirms this world-class system has more to offer. Our industry-leading geological team continues to develop target ideas and concepts that give rise to a higher probability of future discoveries.

Drilling at Leia, Luke and other pegmatites (Hutt, Han and Chewy) continues.

Acknowledgement of Country

We acknowledge the Traditional Owners of the land on which our operations exist and on which we work. We recognise their continuing connection to land, waters and culture. We pay our respects to their Elders past, present and emerging.

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