Wildcat Resources (ASX:WC8) is advancing workstreams for a definitive feasibility study for its Tabba Tabba project in Western Australia, according to a Monday Australian bourse filing.

It is optimizing the mine plan, aiming to bring forward the stage two process plant expansion to 4.5 million tonnes-per-annum processing throughput, while reducing pre-production mining strip and capital expenditure. Delivery of the study is targeted for the September quarter.

Tantalum from the Tabba Tabba project and petalite processing from the Chewy, Han, and Hutt resources will be incorporated into the study, which is expected to improve the project's economic outcomes.

Material from the years one to two of open-pit operations achieved a spodumene concentrate grade of 5.65% lithium oxide, with low iron.