| # | Entity | Status | State |
|---|---|---|---|
| 1 | 24 066 600 002 HARD ROCK GEOTECHNICAL PTY LTD |
ABN Cancelled | VIC 3121 |
| 2 | 30 097 375 703 ROCK SOLID GEOTECHNICS PTY LTD |
ABN Active | TAS 7173 |
| 3 | 65 151 813 044 Red Rock Geotechnical Pty Ltd |
ABN Active | WA 6016 |
| 4 | 70 166 164 727 HARD ROCK GEOTECHNICAL ENGINEERING PTY LTD |
ABN Active | NSW 2536 |
| 5 | 24 066 600 002 HARD ROCK GEOTECHNICAL PTY LTD |
ABN Cancelled | VIC 3121 |
| 6 | 70 181 023 443 KONG VINH LUC BIG ROCK GEOTECHNICS |
ABN Active | QLD 4114 |