Mount Holland Lithium Project – Kwinana Refinery NPI Buildings

Design and construction of permanent NPI Buildings at Covalent's Lithium Kwinana Refinery.

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Covalent Lithium Pty Ltd


Kwinana, Western Australia


Design and Construct

Contract Value


Start Date

Mar 2022

Completion Date

September 2023

The Mount Holland Lithium Project (Project) is an integrated project consisting of a mine, concentrator, and refinery to produce battery grade lithium hydroxide for the international market. The project is centred on the Earl Grey hard-rock lithium deposit south of Southern Cross in Western Australia, approximately 500 km east of Perth.

Decmil was awarded a contract to design and construct Permanent NPI Buildings at Covalent Lithium’s Kwinana Refinery, located 42 kms south of Perth.

The scope of works included the construction of an Administration Building, Laboratory, Workshop, Warehouse, Central Control Room, Refuelling Facility, Wastewater Treatment and associated utilities and civil works at Covalent Lithium’s Kwinana Refinery.

Scheduling and co-ordination of this project was critical, with completion of the Permanent NPI Buildings required for the commissioning and commencement of the Refinery.

Delivering solutions.

We are committed to outstanding project management and delivery regardless of the scale or the intricacy of the work.