| Company | Plant Location | MPa | Start Date | Expiry Date | Certificate |
|---|---|---|---|---|---|
| Allied Concrete Limited | Alexandra | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Ashburton | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Cromwell | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Dunedin (Logan Point) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Mosgiel (Satellite) | 50 | 01 Aug 2025 | 30 Apr 2026 | Download PDF | |
| Gore | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Greymouth (South Beach) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Invercargill | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| McAlpine Street, Christchurch | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Nelson | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Renwick | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Wanaka | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Washdyke (Timaru) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Allied Queenstown Concrete Limited | Frankton, Queenstown | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Amuri Ready Mix Limited | Waiau | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Ashburton Contracting Limited | Ashburton | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Christchurch Ready Mix Concrete Limited | Belfast No. 1 | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Belfast No. 2 | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Hornby | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Rolleston | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Clutha Concrete Limited | Balclutha | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Cromwell Certified Concrete Limited | Cromwell | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Eastern Concrete Limited | Gore | 45 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Firth Industries | Amberley | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Ashburton | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Blenheim (Tuamarina) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Bromley | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Christchurch (Hornby) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Darfield | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Edendale (New) | 50 | 22 Sep 2025 | 21 Dec 2025 | Download PDF | |
| Geraldine | 50 | 01 Aug 2025 | 30 Apr 2026 | Download PDF | |
| Fairlie (Satellite) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Green Island (Dunedin) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Greymouth | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Harewood (Canterbury Concrete) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Invercargill | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Kaiwera Windfarm Plant A | 50 | 28 Jun 2025 | 30 Apr 2026 | Download PDF | |
| Kaiwera Windfarm Plant B (Satellite) | 50 | 30 Jul 2025 | 30 Apr 2026 | Download PDF | |
| Oamaru | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Hilderthorpe (Satellite) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Queenstown | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Richmond (Nelson) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Rolleston | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Wanaka | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Washdyke (Timaru) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Golden Bay Premix | Takaka | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Higgins Concrete Limited | Richmond | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Hi-Stress Concrete (2020) Limited | Christchurch | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Holcim (New Zealand) Limited | Christchurch North | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Wanaka | 40 | 02 Mar 2025 | 30 Apr 2026 | Download PDF | |
| Kiwi Concrete Limited | Christchurch | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Christchurch No. 2 | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Kaikoura | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Oamaru (New) | 40 | 17 Sep 2025 | 30 Apr 2026 | Download PDF | |
| Twizel | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| McGregor Concrete Limited | Te Anau | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Winton | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Lumsden (Satellite) | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF | |
| Milton Concrete (North Branch Limited) | Milton | 40 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Motueka Premix Concrete | Motueka | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
| Wrey's Bush Concrete Products Limited | Otautau | 50 | 01 May 2025 | 30 Apr 2026 | Download PDF |
