Responsible Sourcing and High-grade Processing
At Greyhill Mining, we combine low-impact extraction of natural graphite ore with efficient on site mineral processing integrating energy efficient electric equipment and closed-loop water recycling systems ensuring low carbon emissions, low waste and high final product recovery rates.
Our processing plant in Handeni District, Tanzania, will deliver premium-grade graphite with purity levels of 95% and above, backed by rigorous quality control systems and full traceability from mine to market. Leveraging strong partnerships with the local community and compliance with environmental regulations, we are well-positioned to become a trusted supplier in the global graphite market. With construction progressing on schedule, we expect to commission the plant in the last quarter of 2025, unlocking significant value for our stakeholders and meeting the growing demand for sustainable, high-quality graphite.
Our Capabilities
Graphite Mining
Mineral Processing
Quality Control
Logistics
Scaling New Avenues for Sustainable Mining, Growth and Innovation
Based in a prime graphite-rich region of Africa, we leverage abundant, high-grade ore deposits and modern infrastructure to supply global markets. Our mine benefits from local expertise and robust logistics, ensuring steady output and footprint.
We maintain rigorous traceability from pit to product, using blockchain records and third-party audits. Partnering with industry leaders, we deliver tailored graphite grades to battery, steel, and electronics manufacturers. Our operations follow strict environmental standards, including water management, renewable power, and progressive land rehabilitation programs
High Grade Natural Graphite Flakes
Flake Graphite
Flake graphite is a naturally occurring form of graphite with a crystalline structure. It offers:
- Excellent thermal and electrical conductivity
- High temperature resistance
- Superior chemical stability
- Outstanding lubricity
At Greyhill, our beneficiation and classification process ensures flakes are sorted accurately by size and purity, delivering consistent quality to our clients worldwide.
We offer natural graphite flakes with purity above 95% and different mesh sizes ranging from fine flakes to Super Jumbo (Large coarse flakes).
At Greyhill, our beneficiation and classification process ensures flakes are sorted accurately by size, delivering consistent quality to our clients worldwide.
Natural Graphite for Diverse Applications
Foundry
Friction Materials
Industrial Greases
Products
Foundry
Our flake graphite and custom blends are widely used in metallurgical and foundry applications. Known for their thermal resistance and lubricity, these graphite products enhance performance in high-temperature environments and improve casting quality.
Applications:
- Carbon additive in steel and ironmaking
- Foundry mold coatings
- Lubricants for metal forming
- Crucibles and refractory linings
Friction Materials
Greyhill’s graphite powder and fine mesh flakes are ideal for use in friction materials that require temperature control, noise reduction, and wear resistance.
Applications:
- Brake linings
- Clutch facings
- Carbon brushes
- Gaskets and seals
Industrial Greases
Our graphite powders and oil- or water-based dispersions are used in the formulation of high-performance lubricants and greases. Their natural lamellar structure reduces friction and enhances heat dissipation.
Applications:
- High-temperature greases
- Dry lubricants
- Anti-seize compounds
- Metalworking lubricants
Products
Greyhill’s flake graphite is a key material in the production of refractory products that withstand intense heat and mechanical stress.
Applications:
- Furnace linings
- Refractory bricks
- Tundish coatings
- Fireclay mixes
Know more about our process, capabilities and what drives us
Learn how we mine and extract graphite for high purity.
We mine and deliver quality
Yes. We heat the concentrate above 2,500 °C in our furnaces. This removes impurities and raises carbon to battery grade.
We do. We use acid and alkali baths to strip metal residues. Then we neutralize and rinse before drying.
We run the dried concentrate through sieves or air classifiers. You choose the size grades you need—+80 mesh, +100 mesh, or custom cuts.
We sample at key steps. If results drift, we adjust reagent dosages or furnace settings. Every batch meets your spec.
Top News From Greyhill
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Have questions? Get in touch!
Need help with your mining project? Our team will review your message and respond within two business days.