Reliable Calcite Supplier in Southern Africa: Kalkor

Delivering Consistent Quality Calcite for Industrial and Agricultural Needs

Kalkor (Pty) Ltd is a long-established and trusted calcite supplier in Southern Africa. For over 50 years, we have supplied high-purity calcite and calcium carbonate products to clients across multiple industries. With our roots in mining and a strong logistical footprint, Kalkor delivers tailored mineral solutions backed by quality control, technical support, and a customer-first approach.

Who We Are: Southern Africa’s Trusted Source for Calcite

Kalkor is a specialist in agricultural and industrial minerals with a strong regional presence. Our main offices are located in Johannesburg, supported by a fully integrated distribution network across Southern Africa.

With deep roots in the region’s mineral sector and a clear commitment to quality, we help farmers, manufacturers, and chemical processors meet their performance goals through consistent mineral supply and service. As proud members of FERTASA (Fertilizer Association of Southern Africa), we follow industry standards that support ethical, sustainable, and responsible operations.

Our Product Range: High-Purity Calcite for Every Application

Kalkor supplies a broad range of calcite and calcium carbonate-based products to meet the requirements of various industries.

Core Product Categories:

Ground Calcium Carbonate (GCC): A finely ground product used widely as a filler in plastics, paper, paints, and sealants.
Precipitated Calcium Carbonate (PCC): A chemically processed form of CaCO₃ used in pharmaceuticals and fine-grade applications.
Agricultural Lime: Sourced from natural calcitic and dolomitic limestone, ideal for improving soil health and neutralising acidity.
Custom Mineral Blends: Tailored mixtures designed to meet industry-specific requirements, such as feedstock for paper & pulp and calcium fortification for livestock.

Available Formats:

Bulk loads (34 tons)
50kg polypropylene bags
Tailor-packed solutions for specific industries

See our complete product range & pricelist, and get the order form here.

Industry Applications: Serving Southern Africa’s Key Sectors

Kalkor serves a wide range of industries that rely on calcium carbonate for production, processing, and performance.

Plastics and Rubber Manufacturing Our ground calcium carbonate (GCC) improves stiffness, impact strength and processability in plastic and rubber compounds.
Paint and Coatings Calcite acts as a coating extender, enhancing coverage, brightness and opacity. Our high-purity calcite is a reliable filler for architectural and industrial paints.
Paper and Pulp Industry Used to control ink absorption and enhance surface smoothness, calcite is an essential filler and coating component in the paper manufacturing process.
Agriculture Kalkor’s agricultural lime is a cost-effective solution for soil pH correction, boosting crop health and nutrient availability.
Pharmaceuticals and Animal Nutrition Our PCC is suitable for pharmaceutical use, offering consistent composition and traceability. Calcium carbonate is also vital for animal feed fortification.

Mining and Processing: From Quarry to Quality-Controlled Product

Kalkor ensures full traceability from source to delivery. Our calcite is mined from local quarries with known deposits of high-grade calcium carbonate. Mining operations adhere to strict environmental and safety regulations, ensuring long-term sustainability.

Once extracted, the material undergoes several stages of crushing, grinding and purification at our mineral processing plants. We conduct laboratory-tested purity checks and maintain consistent particle sizing, colour, and chemical composition. Moisture levels are monitored to ensure suitability for packaging and transport.

Why Clients Choose Kalkor

1. High Purity Standards

Kalkor products meet and exceed industry standards for quality, including ISO-aligned quality assurance protocols. Each batch is subjected to rigorous lab testing for CaCO₃ content and performance properties.

2. Reliable Bulk Supply and Distribution

Our robust logistics system ensures that large volumes of calcite reach clients promptly across Southern Africa. Side-tipper and flatbed configurations are used for various site conditions, and our loading schedules align with operational hours at each mine.

3. Sustainability and Responsibility

Environmental stewardship is central to our operations. We work only with quarry partners who implement land rehabilitation and responsible extraction practices.

4. Personalised Technical Support

Our experienced staff provide application support and material recommendations based on your specific industry and production requirements. We’re just a phone call or email away when you need us.

5. Transparent Pricing and Flexible Options

With accessible price lists, flexible packaging, and clear order handling, Kalkor makes it simple to secure your mineral supply. View our pricing details here.

CONTACT US

If you have an enquiry, please complete the form and we will get in touch.

Logistics That Work for You

Kalkor is structured to support bulk calcite delivery with minimal delays. Our trucks service both rural and industrial routes, with a Southern African distribution network. We work closely with clients to schedule deliveries around their operating hours and storage capacities.

Partnering with Kalkor: Your Go-To Calcite Supplier in Southern Africa

By working with Kalkor, you gain a dependable partner that understands your industry’s challenges. Our combination of high-purity calcite, consistent delivery, and expert service makes us the supplier of choice for clients across agriculture, manufacturing, and mining.

Our role doesn’t end at the quarry; it continues through delivery, application, and ongoing support.

Ready to Place an Order or Ask a Question?

We’re here to help you source quality calcite and calcium carbonate products that meet your needs.

Reach us through our Contact Page or email: info@kalkor.co.za. You can also call us directly at +27 (0)12 813 9370.

The Role of Calcite in Regional Agriculture

Southern Africa’s agricultural sector is under constant pressure to maximise yields in the face of climate variability, soil degradation, and rising input costs. One of the most overlooked yet essential tools in sustainable farming is calcitic lime—a naturally occurring form of calcium carbonate that plays a critical role in restoring soil health and ensuring long-term productivity.

As a leading calcite supplier in Southern Africa, Kalkor provides high-quality agricultural lime that directly supports food security in arid and semi-arid regions.

Restoring Soil Balance with Calcitic Lime

Many farming regions across Limpopo, North West, and parts of the Free State suffer from acidic soils, often resulting from over-farming, excess rainfall, and fertiliser use. Acidic soil conditions limit nutrient uptake, reduce microbial activity, and stunt crop growth.

Calcitic lime helps neutralise soil acidity by increasing the pH level, making essential nutrients like phosphorus, potassium, and magnesium more available to plants. It also improves soil structure, enhances root development, and reduces the toxic effects of elements like aluminium and manganese.

By adjusting soil pH levels, farmers experience healthier crop growth, improved fertiliser efficiency, and a more resilient agricultural system.

A Cost-Effective Way to Improve Yields

Compared to many synthetic inputs, calcitic lime is a cost-effective solution that delivers measurable benefits over multiple seasons. When applied correctly and at the right time, a single application can improve soil conditions for up to five years, depending on the soil type and rainfall patterns.

Kalkor’s agricultural lime is laboratory-tested for calcium carbonate content and particle fineness, ensuring efficient reactivity in the field. Our lime is easy to apply using conventional spreaders, and we offer delivery in both bulk and bagged formats to suit farms of all sizes.

Supporting Farmers in Semi-Arid and Dryland Zones

In regions where water is scarce and soils are fragile, every farming input must count. Calcitic lime is especially beneficial in semi-arid zones, where its impact on soil water retention and nutrient cycling can significantly improve the resilience of dryland crops like maize, sorghum, and sunflower.

Through ongoing relationships with local cooperatives, agronomists, and distributors, Kalkor helps rural farmers access the calcite products they need to sustain soil health and crop output – one application at a time.