Brightstar Resources (ASX:BTR) said earthworks and site preparation are in progress at the Laverton processing plant in Western Australia ahead of the targeted financial investment decision and construction in the March quarter, according to a Tuesday filing with the Australian bourse.

Assessment is also underway for engineering, procurement and construction tender packages, with the selection of the preferred contractor expected to be completed this month, the filing said.

Additionally, the company continues the technical work ahead of updated definitive feasibility study due in February, per the filing.