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Westport Industrial Minerals
Nestled on the rugged West Coast of New Zealand’s South Island , Westport Industrial Minerals is a key regional supplier of high-purity industrial minerals , including limestone, dolomite, and agricultural lime . Leveraging the rich geological formations of the Buller District, the company plays a vital role in supporting local agriculture, construction, and environmental management.
With a commitment to quality, sustainability, and community partnership, Westport Industrial Minerals delivers reliable, locally sourced solutions across the South Island and beyond.
Who Is Westport Industrial Minerals?
Westport Industrial Minerals is a regional mineral extraction and processing operation based in Westport, New Zealand , serving industries throughout the South Island and lower North Island .
The company sources its materials from carefully managed deposits in the Buller region , known for its high-grade carbonate rocks formed over millions of years in ancient marine environments.
It operates under strict environmental guidelines set by the West Coast Regional Council and Environment Canterbury , ensuring sustainable practices and minimal ecological impact.
Key Products Offered
1. Agricultural Lime (AgLime)
- Form: Crushed and screened limestone
- Uses: Neutralizes acidic soils, improves pasture productivity
- Target Users: Dairy, sheep, and beef farmers across Taranaki, Canterbury, and Otago
Ideal for New Zealand’s intensive farming systems where soil pH correction is essential.
2. Dolomite
- Composition: Calcium magnesium carbonate
- Benefits: Supplies both calcium and magnesium to deficient soils
- Applications: Agriculture, horticulture, viticulture
Preferred in regions with low Mg levels or where dual nutrient input is needed.
3. Crushed Limestone & Quarry Aggregates
- Sizes: From 20mm down to fine dust
- Uses:
- Road base and sub-base construction
- Concrete and asphalt production
- Landfill engineering and drainage layers
Widely used in civil infrastructure projects across the West Coast and inland regions.
4. Industrial Grade Calcium Carbonate
- Processed Form: Ground and screened powder
- Applications:
- Water treatment (pH adjustment)
- Flue gas desulfurization (emissions control)
- Manufacturing additives (limited scale)
Available in bulk loads or bagged options upon request.
Supporting Local Industries
🌾 Agriculture
Suggested Image:
A farmer spreading agricultural lime on a green hillside pasture using a tractor-mounted spreader.
Westport Industrial Minerals supports the region’s strong dairy and pastoral farming sector by providing affordable, effective soil conditioners that boost feed quality and farm profitability.
🏗️ Construction & Infrastructure
Local councils and contractors rely on Westport-sourced aggregates for:
- Rural road upgrades
- Bridge foundations
- Flood protection works
The proximity of the quarry reduces transport costs and carbon emissions.
🌍 Environmental Applications
Crushed limestone is also used in:
- Acid mine drainage treatment
- Wastewater neutralization
- Riparian zone stabilization
Helping protect sensitive waterways on the West Coast.
Commitment to Sustainability
Westport Industrial Minerals adheres to best practices in:
- Progressive land rehabilitation after extraction
- Dust and noise suppression
- Water runoff management
- Protection of native vegetation and habitats
Their operations are regularly audited to ensure compliance with RMA (Resource Management Act) standards.
Logistics & Delivery
- Primary Hub: Port of Westport – enabling coastal shipping options
- Transport: Fleet of trucks and third-party hauliers for deliveries up to 300 km
- Packaging: Bulk loads, super sacks (1-tonne), and custom bagging available
This flexibility makes them accessible to small farms and large contractors alike.
Final Thoughts
Westport Industrial Minerals exemplifies how regional resource companies can deliver value while respecting the environment and serving local needs. From improving soil health to building resilient roads, their products are quietly shaping the future of New Zealand’s West Coast and surrounding regions.
As demand for sustainable, locally sourced materials grows, Westport remains a trusted name in industrial mineral supply.
Frequently Asked Questions (FAQs)
Q1: What types of lime does Westport Industrial Minerals supply?
A: They offer agricultural limestone and dolomitic lime , both crushed to standard spreading sizes.
Q2: Can I get delivery outside Westport?
A: Yes — they deliver across the South Island , including Nelson, Marlborough, Canterbury, and Southland.
Q3: Is the limestone suitable for organic farming?
A: Yes — their natural, untreated agricultural lime complies with Organic NZ standards when applied as directed.