Products
High-purity limestone and calcium carbonate
From construction aggregates to ultra-fine coated calcium carbonate and application-specific grades — produced to consistent specifications and supplied in the packaging and volumes your operation requires.
Product Family 01
High-Purity Limestone & Construction Materials
Crushed and screened at our 30,000 tonne-per-day plant, our limestone is characterised by high calcium content and low impurities. Alongside the standard construction range, we supply lump limestone for lime kilns and steel flux, and custom gradations for chemical and metallurgical uses.
Typical chemical analysis
| Parameter | Value |
|---|---|
| CaCO₃ | up to 96.12 % |
| CaO | 53.8 % |
| MgO | 0.62 % |
| SiO₂ | 1.15 % |
| Al₂O₃ | 0.38 % |
| Fe₂O₃ | 0.14 % |
| Loss on ignition | 43.1 % |
Typical values; certificates of analysis are issued per shipment.
Construction materials range
| Product | Typical size | Principal uses |
|---|---|---|
| Sub Base | 0 – 37.5 mm | Road foundations, platforms and pavement lower layers |
| Base Course | 0 – 25 mm | Upper pavement layers beneath asphalt surfacing |
| Aggregate | 5–10 / 10–20 / 20–40 mm | Concrete batching and asphalt production |
| Crusher Run | 0 – 50 mm | Compacted fill, access roads and hardstandings |
| Fill Material | 0 – 75 mm | Bulk fill, land reclamation and levelling works |
Custom gradations can be produced against customer sieve curves. All products are washed and screened to control fines content on request.
Product Family 02
Ground Calcium Carbonate (GCC)
Our GCC plant grinds selected high-purity feed on multiple grinding lines to tightly controlled particle size distributions, with a capacity of 6,000 tonnes per day. Six standard grades run from 150 micron down to 5 micron, extended by an ultra-fine range and stearic-acid-coated variants for polymer applications.
| Grade | Top size | Whiteness | Typical applications |
|---|---|---|---|
| GCC 5 | 5 µm | up to 99 % | Paints & coatings, masterbatch, high-grade plastics |
| GCC 10 | 10 µm | ≥ 97 % | Paper filler, PVC pipes and profiles, rubber compounds |
| GCC 20 | 20 µm | ≥ 96 % | Putties, adhesives and sealants, ceramics |
| GCC 45 | 45 µm | ≥ 96 % | Construction chemicals, gypsum boards, dry-mix mortars |
| GCC 75 | 75 µm | ≥ 95 % | Rubber goods, carpet backing, agriculture |
| GCC 150 | 150 µm | ≥ 95 % | Drilling fluids, animal feed, water treatment |
Ultra-fine range — 1 µm and 2 µm
Steep particle size distributions at 1 and 2 micron for the most demanding applications: premium paints, breathable films, high-loading masterbatch and coated paper.
Coated GCC
Stearic acid surface treatment on any grade improves dispersion and moisture resistance in PVC, polyolefin and rubber compounding.
Detailed technical data sheets are provided on request.
Application-Specific Grades
Engineered for your process
Beyond standard sizes, we produce grades specified for individual industries — controlled not just for particle size, but for the properties that matter in each application.
Oil & Gas
Drilling Grade
Sized calcium carbonate for drilling fluids — weighting, bridging and fluid-loss control in water- and oil-based muds.
Paints & Coatings
Paint Grade
High-whiteness, low-oil-absorption filler improving opacity, film build and cost efficiency in decorative and industrial paints.
Plastics & Polymers
Plastic Grade
Coated and uncoated grades for PVC, PP and PE — better stiffness, impact behaviour and throughput in compounding.
Rubber
Rubber Grade
Reinforcing and semi-reinforcing filler for tyres, belts, hoses and moulded rubber goods.
Paper
Paper Grade
Filler and coating pigment delivering brightness, opacity and printability at lower fibre cost.
Pharmaceuticals · Phase 3
Medical Grade
Pharmacopoeia-compliant calcium carbonate for antacids, supplements and excipients — planned for the project's third phase.
Food · Phase 3
Food Grade
Food-safe calcium carbonate for fortification, baking and beverage applications — planned for the project's third phase.
Industries We Serve
One mineral, a dozen industries
Calcium carbonate is among the most widely used industrial minerals in the world. From construction aggregates to pharmaceutical excipients, our product range serves more than twenty application areas across these principal sectors.
Construction
Sub base, base course, aggregates and fill for roads and buildings
Cement
High-calcium limestone as kiln feed and cement additive
Steel
Fluxing agent for slag control in steelmaking
Plastics
Coated and uncoated GCC for PVC, PP and PE compounds
Paints & Coatings
Filler and extender improving opacity and film properties
Paper
Filler and coating pigment for brightness and printability
Rubber
Filler improving hardness and processing behaviour
Oil & Gas
Drilling-grade carbonate for fluid-loss control and bridging
Pharmaceuticals
Medical-grade calcium carbonate for antacids and supplements
Food
Food-grade carbonate for fortification and processing
Agriculture
Soil conditioning and calcium supplement in animal feed
Water Treatment
pH correction and remineralisation media
Quality & Laboratory
Tested at every stage
Our on-site laboratory analyses every production batch before release — chemistry, mineralogy, particle size, whiteness, density and moisture.
ISO-aligned management
Quality management system built to ISO 9001:2015, with full traceability from quarry bench to delivered lot.
Robotic packing
25 kg bags, 1–1.5 tonne jumbo bags and bulk tanker loading through a robotic, dust-controlled packing and palletising line.
Documentation with every order
A certificate of analysis accompanies each shipment; technical and safety data sheets (TDS/SDS) are available for all grades on request.
Laboratory instrumentation
- XRF spectrometer
- Elemental composition of every production batch
- XRD analyser
- Mineralogical phase identification
- ICP spectrometer
- Trace element analysis to ppm level
- Laser particle size analyser
- Full particle size distribution, d50 and top cut
- Whiteness meter
- Brightness and whiteness against ISO standards
- Density meter
- Bulk and specific density verification
- Moisture analyser
- Residual moisture control before packing
Need a specification or a sample?
Tell us your application and target particle size — we’ll respond with data sheets and a commercial offer.