| Company | Plant Location | MPa | Start Date | Expiry Date |
|---|---|---|---|---|
| Aitkens Concrete Limited | Gisborne | 45 | 01 Aug 2021 | 31 Jul 2022 |
| Allied Concrete | Gisborne | 45 | 01 Aug 2021 | 31 Jul 2022 |
| Hawera (Normanby) | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Stratford (Satellite) | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Hawkes Bay | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Kiwi Point, Wellington | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Masterton | 45 | 01 Aug 2021 | 31 Jul 2022 | |
| New Plymouth | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Ohau | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Setters Line, Palmerston North | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Kakariki (Satellite) | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Upper Hutt | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Wanganui | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Byfords Readi-Mix Limited | Taihape | 50 | 01 Aug 2021 | 31 Jul 2022 |
| Waiouru (Satellite) | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Firth Industries | Aotea Quay | 50 | 01 Aug 2021 | 31 Jul 2022 |
| Belmont | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Hastings | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Hawera | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Levin | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Napier | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| New Plymouth B | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| New Plymouth (Satellite) | 50 | 13 Sep 2021 | 31 Jul 2022 | |
| Palmerston North | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Paraparaumu | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Stratford | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Turangi | 40 | 01 Aug 2021 | 31 Jul 2022 | |
| Higgins Concrete Limited | Dannevirke | 40 | 01 Aug 2021 | 31 Jul 2022 |
| Feilding | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Marton | 40 | 01 Aug 2021 | 31 Jul 2022 | |
| Otaki (New Plant) | - | - | - | |
| Palmerston North | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Porirua | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Waingawa | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| Waipukurau (New) | 40 | 01 Aug 2021 | 31 Jul 2022 | |
| Wellington | 50 | 01 Aug 2021 | 31 Jul 2022 | |
| PERTH Concrete Limited | Wanganui | 50 | 01 Aug 2021 | 31 Jul 2022 |
| Ruapehu Concrete Limited | Taumarunui | 40 | 01 Aug 2021 | 31 Jul 2022 |
| Sandford Bros Limited | Hawera | 40 | 01 Aug 2021 | 31 Jul 2022 |
| Taranaki Mix Limited | New Plymouth | 50 | 01 Aug 2021 | 31 Jul 2022 |
| Terry's Concrete Limited | Te Horo | 50 | 01 Aug 2021 | 31 Jul 2022 |
| Upper Hutt Ready Mix Concrete Limited | Upper Hutt | 50 | 01 Aug 2021 | 31 Jul 2022 |
