Pilbara lowers Pilgangoora capital costs
PERTH (miningweekly.com) – The expected capital costs for the Pilgangoora lithium/tantalum project, being developed by ASX-listed Pilbara Minerals, have increased by A$10-million following amendments to the scope of the processing plant.
The lithium developer said on Friday that the Pilgangoora project would cost some A$234-million to develop, compared with the original capital cost of A$224-million.
The company has continued to optimise the process design and operating parameters of the Pilgangoora plant since completing the project definitive feasibility study last year, through metallurgical testwork and pilot-scale process programmes of the heavy media separation, gravity and flotation circuits.
The work has resulted in operating cost savings of more than A$2.50/t.
“The investment we have made in feasibility studies, testwork programmes and amassing technical skills to support Pilgangoora’s development runs well beyond that of comparable projects,” said MD Ken Brinsden.
“Results from ongoing testwork programmes further demonstrate the quality of Pilangoora spodumene and its capacity to deliver high-grade, low-cost products for the market. That’s why we have attracted premium customers in the form of General Lithium and Ganfeng.
The Pilgangoora project is expected to produce an average of 314 000 t/y of 6% spodumene concentrate and 321 000 lb/y of tantalite, over a mine life of 36 years.
The project is estimated to have a post-tax net present value of A$709-million and an internal rate of return of 38.1%, and is expected to generate life-of-mine revenues of A$9.23-billion.
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