CRITICAL MINERALS
A New Critical Mineral Project for the West Coast
Mananui – Hokitika
The proposed mining method focuses on extracting heavy minerals from shoreline sands within a specific area. The process begins by removing a thin layer of sandy topsoil (0.1-0.6 metres), which is saved for later use in restoring the land. A floating dredge is used to excavate the sands in a mine pond that moves progressively through the site.
The dredge operates along a 70-metre-wide path, primarily in a North-South direction. Once the ore is dredged, it is screened to remove larger particles and then sent as a slurry to a processing plant. After processing, the leftover sand (tailings) is pumped back into the mined area, gradually backfilled with processed sand, reshaped, and covered with topsoil to progressively rehabilitate the land.
Economic benefits
The proposed mining and logistics operations are expected to create up to 70 well-paid jobs in engineering, geotechnical, and maintenance roles, in addition to contractors and associated services.
An independent economic analysis by Sense Partners estimates that the project will generate $71 million in export revenue annually and contribute $37.9 million to the West Coast economy.
Environmental stewardship
Comprehensive environmental assessments have been conducted, and the project will implement robust water and traffic management plans. Key environmental safeguards and enhancements include:
- No clearance of indigenous vegetation adjacent to the creek.
- Creation of buffer zones and an ecological reserve adjacent to the creek and wetland to increase the protection of these areas during mining and into the future.
- Continuous environmental monitoring and progressive land rehabilitation, including native plantings and water management practices to restore the natural ecosystem.
Community and Iwi consultation
We’ve worked closely with Te Rūnanga o Ngāti Waewae and Te Rūnanga o Makaawhio, since the project’s inception and have undertaken extensive measures to ensure the cultural and ecological preservation of Māhinapua Creek and Lake Māhinapua. To protect these waterbodies and surrounding habitats, we’re establishing an ecological reserve along the creek’s borders.
Land-use capability
The mining operation is designed with sustainability in mind, ensuring that the site remains environmentally balanced and beneficial for the local community for years to come.
