| Company | Plant Location | MPa | Start Date | Expiry Date | Certificate |
|---|---|---|---|---|---|
| Aitkens Concrete Limited | Gisborne | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF |
| Allied Concrete | Gisborne | 45 | 01 Aug 2022 | 31 Jul 2023 | Download PDF |
| Hawera (Normanby) | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Hawkes Bay | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Harapaki Wind Farm 1 (Satellite) | 50 | 29 Jun 2022 | 31 Jul 2023 | Download PDF | |
| Harapaki Wind Farm 2 (Satellite) | 50 | 29 Jun 2022 | 31 Jul 2023 | Download PDF | |
| Kiwi Point, Wellington | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Masterton | 45 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| New Plymouth | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Ohau | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Setters Line, Palmerston North | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Kakariki (Satellite) | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Upper Hutt | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Wanganui | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Bridgeman Concrete Limited | Hastings | - | - | - | - |
| Napier | - | - | - | - | |
| Byfords Readi-Mix Limited | Taihape | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF |
| Waiouru (Satellite) | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Firth Industries | Aotea Quay | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF |
| Belmont | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Hastings | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Hawera | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Levin | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Napier | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| New Plymouth B | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Palmerston North | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Paraparaumu | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Stratford | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Higgins Concrete Limited | Dannevirke | 40 | 01 Aug 2022 | 31 Jul 2023 | Download PDF |
| Feilding | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Hastings | 45 | 30 Jun 2022 | 31 Jul 2023 | Download PDF | |
| Marton | 40 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Otaki (New Plant) | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Palmerston North | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Porirua | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Te Matai | 50 | 29 Jun 2022 | 31 Jul 2023 | Download PDF | |
| Waingawa | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Waipukurau (New) | 40 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| Wellington | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF | |
| PERTH Concrete Limited | Wanganui | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF |
| Quality Roading and Services (Wairoa) Limited | Wairoa | - | - | - | - |
| Ruapehu Concrete Limited | Taumarunui | 40 | 01 Aug 2022 | 31 Jul 2023 | Download PDF |
| Sandford Bros Limited | Hawera | 40 | 01 Aug 2022 | 31 Jul 2023 | Download PDF |
| Taranaki Mix Limited | New Plymouth (New Plant) | 50 | 08 Jul 2022 | 31 Jul 2023 | Download PDF |
| Terry's Concrete Limited | Te Horo | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF |
| Upper Hutt Ready Mix Concrete Limited | Upper Hutt | 50 | 01 Aug 2022 | 31 Jul 2023 | Download PDF |
