- Astral Resources – Mandilla Gold Project, Goldfields WA (new greenfields development)
- Wildcat Resources – Tabba Tabba Lithium Project, Pilbara WA (new greenfields development)
- Global Lithium – Manna Lithium Project, Goldfields WA (new greenfields development)
- Musgrave Minerals – Cue Gold Project, Mid West WA (new greenfields development)
- Saturn Metals – Apollo Hill Gold Project, Goldfields WA (new greenfields development)
- Classic Minerals – Kat Gap Gold Project, Goldfields WA (new greenfields development - commenced construction and early production phases in 2022)
- Aurumin – Central Sandstone, Mt Dimer and Mt Palmer gold projects, Goldfields WA (brownfields sites with proposed new development)
- Billabong Gold – Plutonic Gold Mine including Hermes Project, Mid West WA (operating mine with ongoing expansion developments, including new greenfields satellite pits)
- Pilbara Minerals
–
Pilgangoora Tantalum-Lithium Project, Pilbara WA (new greenfields development - commenced construction and early production phases in 2018)
- De Grey Mining – Mallina Gold Project, Pilbara WA (brownfields site with proposed new greenfields development, including new satellite pits such as the Hemi discovery)
- Mineral Resources – Wodgina Lithium Project, Pilbara WA (operating mine, with ongoing expansion developments)
- Northern Star Resources – Paulsens, Kanowna Belle, Jundee, South Kal and Tanami gold mines, Pilbara & Goldfields WA, and NT (operating mines, with ongoing expansion developments)
- Bryah Resources – Bryah Basin Project, Mid West WA (proposed greenfields development)
- Golden Iron Resources (now Aurumin) – Mt Dimer Gold Project, Goldfields WA (brownfields site with proposed new development)
- Consolidated Minerals – Woodie Woodie Manganese Operations, Pilbara WA (operating mine with ongoing expansion developments)
- Dacian Gold – Mt Morgans Gold Mine, Goldfields WA (brownfields site with new expansion developments - commenced renewed mining operations following construction phase in 2017)
- Stone Resources Australia – Alpha and Brightstar gold mines, Goldfields WA (brownfields sites)
- Winmar Resources – Hamersley Iron Ore Project, Pilbara WA (proposed greenfields development)
- Bullabulling Gold – Bullabulling Gold Mine, Goldfields WA (brownfields site with proposed new development)
- Doray Minerals
–
Andy Well Gold Project, Mid West WA (greenfields development - now operating mine)
- Talison Lithium
– Greenbushes Mine, South West WA (operating mine)
- Hemisphere Resources (now Nexus Minerals) – Yandicoogina South Iron Ore Project, Pilbara WA (proposed greenfields development)
- Toro Energy – Wiluna Uranium Project, Mid West WA (greenfields development - now operating mine)
- Rio Tinto Iron Ore
– Pilbara Expansion Projects, Pilbara WA (operating mines and expansion developments)
- BHP Billiton Iron Ore
– Rapid
Growth Project 5 (RGP5), Pilbara WA (operating mines and expansion developments)
- Range River Gold
– Mt Morgans Gold Mine, Goldfields WA (new development)
- Hanson Construction Materials – Byford Quarry, South West WA (operating quarry)
- Alacer Gold – Higginsville Gold Operation, Goldfields WA (new development - Chalice Mine)
- CITIC Pacific Mining – Sino Iron Project, Pilbara WA (greenfields development – now operating mine)
- Barrick Gold
– Kanowna Gold Operations, Goldfields WA (new development - Crossroads Mine)
- Newmont Mining
– Tanami Gold Operations, Tanami Desert NT (operating mines)
- Cliffs Natural Resources – Koolyanobbing Operations, Mid West WA (new development - Windarling Mine)
- Mineralogy
– Cape Preston Iron Ore Expansion Projects, Pilbara WA (proposed new development)
- Norton Gold Fields – Paddington Gold Mine, Goldfields WA (operating mine)
- Reed Resources – Barrambie Vanadium Project, Goldfields WA (proposed greenfields development)
- St Barbara
–
Southern Cross, Tarmoola and Gwalia operations, Goldfields WA (operating mines)
- Norseman Gold
– Norseman Gold Project, Goldfields WA (operating mines)
- Phoenix Gold – Castle Hill Gold Project, Goldfields WA (brownfields site with proposed new development)
- Northwest Nonferrous Australia Mining (now De Grey Mining) – Indee Gold Mine, Pilbara WA (brownfields site)

Significant Environmental Services - Plumosa Mews, Duncraig WA 6023 - ABN 46 874 568 755