Cooljarloo Mine

Cooljarloo is situated within the Swan Coastal Plain, approximately 200 km north of Perth in Western Australia's Wheatbelt region. The terrain is characterised by low-relief, unconsolidated aeolian and fluvial sand deposits — ideal for heavy mineral sand concentration. The flat to gently undulating topography facilitates large-scale earthmoving and sequential pit advancement, minimising overburden stripping ratios and enabling efficient dredge pond mobility across the orebody footprint.

Tronox operates Cooljarloo as part of its Northern Operations integrated value chain, feeding the Chandala Metallurgical Complex downstream. Workforce deployment follows structured FIFO/DIDO rotational rosters from Perth, with site logistics coordinated through regional road corridors. Key B2B service requirements include:

• Mobile plant maintenance and heavy equipment supply
• Reagent and consumable logistics management
• Camp catering, accommodation, and site services
• Geotechnical and survey contractor support

The operation employs wet concentrator plant (WCP) technology, processing slurried ore through gravity and magnetic separation circuits. Core engineering demands include:

• Spiral concentrator banks for primary heavy mineral upgrading
• High-tension electrostatic and magnetic separators for mineral suite differentiation
• High-volume slurry pumping systems with precise physicochemical control
• Dredge pond water recycling and turbidity management systems

Tronox enforces a progressive rehabilitation mandate at Cooljarloo, with mined-out cells backfilled, re-contoured, and revegetated in sequence with active mining. Tailings management is integral to the environmental licence:

• Engineered tailings storage facilities (TSFs) with geotechnical monitoring
• Native vegetation seed banking and topsoil stockpile management
• Water stewardship via closed-loop process water recycling
• Biodiversity offset programs aligned with DER/DWER regulatory frameworks