| # | Entity | Status | State |
|---|---|---|---|
| 1 | 98 409 352 195 K.A DUFF & T.M DUFF & T.M DUFF |
ABN Cancelled | QLD 4419 |
| 2 | 45 318 134 266 K.A DUFF & T.M DUFF |
ABN Active | QLD 4359 |
| 3 | 84 159 518 800 M.R DUFF & B.T PEDERICK & J.A PEDERICK & A.P SANDERSON |
ABN Cancelled | SA 5154 |
| 4 | 21 283 254 478 A M & D T DUFF |
ABN Cancelled | WA 6164 |
| 5 | 34 256 105 411 M.L DUFF & K.T FOWLES & L.R MATHESON & A.R SAMSON |
ABN Active | NSW 2305 |
| 6 | 71 255 846 814 R.A CARROLL & B.S CLUTTER & S.D DUFF & M.S HEMING & C Nguyen & J.T SULLIVAN |
ABN Active | NSW 2261 |