Finniss Lithium Operation

The Finniss Lithium Project includes mining, processing and export of high-grade lithium ore used in the manufacturing of batteries for electric vehicles and energy storage. The project includes the Grants and BP33 deposits.

The Final Investment Decision (FID) for the restart of operations at Finniss was approved in March 2026. This was supported by a fully funded package including support from a consortium of strategic partners comprising Glencore Australia Holdings Pty Limited, InfraVia CMF Invest S.à r.l. and Nebari Natural Resources Credit Fund II, LP, as well as institutional investors in an equity raise.

The restart program positions Finniss as a lower cost, long-life lithium operation with strong economic fundamentals. With a 20 year mine life and annual production capacity of 214kt, the project delivers compelling economics.

Core is advancing mobilisation activities, early works and BP33 development, in line with the FID timeline. The company remains committed to safe, disciplined execution as it progresses a staged restart program.

The restart is similar to Core’s previous operation and utilises existing infrastructure, but changes focus from open pit mining at Grants to underground mining at BP33.

For more information:

• Read The FID and Restart ASX Announcement

• Read The Finniss Funding and Restart Presentation

Project history

Core acquired its first landholding in the Bynoe pegmatite field in 2016 and made the first discovery at Finniss shortly after the Grant’s deposit. In mid-2017, Core published Finniss’ maiden Mineral Resource Estimate. 

In less than 6 years since the maiden Mineral Resource, Core advanced Finniss through a Final Investment Decision, and commenced mining at the Grants pit.  

Operations recommenced in 2026 following a pause in mid-2024, with a refocus on underground mining at BP33.

Grants project

The Grants Project forms part of the Finniss Lithium Project and commenced operations in late 2022.  It comprises an open pit mine, waste rock dump, ore stockpiles, and established processing infrastructure.

Open pit mining recommenced in April 2026 alongside BP33 box cut works. The optimised Grants pit provides access to approximately 134kt of SC5 product.

Grants represents a low risk, near term source of ore for the Finniss restart, leveraging existing infrastructure, and supporting a rapid and capital efficient pathway back into production.

BP33 project

BP33 is an underground mine that forms a key part of the Finniss Lithium Project. It is located in close proximity to the Grants processing facility and has a mine life of ≥10 years under the Restart Plan.  

In April 2026 Core commenced underground box cut and civil infrastructure site works. This provides a clear execution pathway for the Finniss restart delivering a staged, lower-risk ramp‑up profile. Combined, the Grants and BP33 developments position Finniss as a lower cost, long-life, brownfield lithium operation with a shorter path to nameplate production.