Liontown Resources says Monadelphous has been awarded the wet plant structural, mechanical, piping and electrical & instrumentation contract for the Kathleen Valley lithium project in Western Australia.
This appointment, valued at approximately A$100 million ($64 million), enables a vertically integrated approach to construction of the critical path wet plant, according to Liontown, providing efficiencies and underpinning confidence in the schedule to first production in mid-2024. It also signifies the final major construction contract award for Kathleen Valley.
The contract scope includes installation of 1,200 t of structural steel, 20,000 m of piping, 600 mechanical equipment items, 200 platework items, the SAG mill, magnetics circuit, flotation circuit, tantalum recovery circuit, concentrate dewatering and tails treatment.
Monadelphous commenced work under a Letter of Intent and began mobilising to site in August under a staged contractual award approach.
By deploying lessons learned from industry peers, the wet plant has been designed to a high specification with quality and hard-wearing materials, including polyurethane-lined steel piping and ceramic lined high-wear areas, designed to reduce future maintenance requirements, Liontown said. In addition, the adoption of the lessons learned will be applied during the commissioning and ramp up of the plant.
Liontown’s Managing Director and CEO, Tony Ottaviano, said: “The vertically integrated approach of combining the SMP and E&I packages enables Monadelphous to efficiently deliver both programs of work to a very high standard and played a large part in its successful tender.
“Monadelphous has a large resources pool, experience in the hard-rock lithium sector, and a proven track record of delivering large-scale multi-disciplinary projects in Western Australia, which came through strongly throughout the evaluation process. Their demonstrated skills, capability and professionalism reflects Liontown’s expectations of a partnership. There is a clear line of sight to first spodumene production mid-next year.”
The Kathleen Valley operations have been optimised for an initial 3 Mt/y, producing approximately 500,000 t/y of spodumene concentrate with a 4 Mt/y expansion planned in Year 6, to deliver approximately 700,000 t/y of spodumene concentrate. Mining will predominately be underground, allowing direct access to higher grade mineralisation while minimising waste and the environmental footprint of the project. Mined ore will be processed through a whole-of-ore flotation circuit which will provide an estimated recovery rate of 78% across the mine life and an estimated site recovery for tantalum concentrate of 42%.
