Lake Carmody

Lake Carmody is situated within the Wheatbelt region of Western Australia, approximately 200–280 km east of Perth. The site occupies a playa lake system characteristic of the region's flat, semi-arid terrain, where evaporite sequences host economically viable gypsum deposits. Distance from Perth directly impacts supply chain lead times, with consumables, reagents, and mechanical components subject to extended delivery windows via regional arterial roads prone to seasonal weight restrictions and harvest-period traffic congestion.

Lake Carmody operates as an active gypsum extraction site under operating status, targeting industrial-grade and agricultural-grade gypsum markets. Operational continuity relies on:

• DIDO rosters (Drive-In Drive-Out) given proximity to regional townships
• Flexible crew scheduling aligned with seasonal extraction windows
• Local contractor engagement for earthworks and haulage
• Minimal permanent camp infrastructure due to DIDO viability

B2B procurement cycles are driven by equipment wear rates in abrasive evaporite conditions.

Gypsum extraction at playa lake systems typically employs shallow open-cut strip mining with minimal overburden removal. Key engineering considerations include:

• Rotary or drum crushing and screening circuits for size classification
• Moisture management systems critical in high-humidity seasonal periods
• Bulk handling conveyors and stockpile management for product segregation
• Road-train compatible load-out facilities for bulk dispatch

No flotation circuit is applicable; physical separation and calcination define the downstream value-add pathway for plasterboard-grade product.

Gypsum mining carries a comparatively low ESG footprint relative to metalliferous operations, offering inherent sustainability advantages:

• Gypsum is a low-carbon input for cement and agricultural soil amendment industries
• Playa lake rehabilitation is achievable through natural hydrological recovery
• Potential integration of solar-assisted processing to reduce diesel dependency at remote sites
• Agricultural gypsum supply supports regional soil carbon sequestration programs

Alignment with Scope 3 decarbonisation targets of downstream construction and agri-sector clients strengthens the ESG value proposition.