Vertically integrated supply of industrial minerals — from our own mining operations and eight production facilities across China, to warehouses in Liverpool and Antwerp. Thirty years of consistent supply to global manufacturers.
Our mineral range covers four distinct application areas, each supported by direct production relationships, complete documentation, and stock held in the UK and Europe.
European warehouse stock with audit-ready documentation for refractory product manufacturers.
→Developed with Japanese spheroidisation technology. Performance benchmarked against leading producers, priced to reflect direct manufacturing origin.
→Liverpool stock for fast UK delivery. Specialist anti-slip and decorative aggregate for surfacing product manufacturers.
→Snowwhite & Snowbright branded kaolin. Specialising in Metakaolin for high-performance cementitious applications.
→Our refractory mineral range is held in stock at our Antwerp warehouse — Euroports, one of Europe's principal logistics hubs — available for prompt despatch across the continent.
Every shipment is supplied with a certificate of analysis, certificate of origin, and complete customs documentation, providing the traceability your quality management system requires. Our supply route is fully compliant with UK and EU import regulations and is designed to withstand formal supplier audits and ESG due diligence reviews.
| Product | Al₂O₃ Content | Typical Applications | Availability |
|---|---|---|---|
| Calcined BauxiteMultiple grades available | 80–90% | Dense castables, ladle linings, rotary kiln linings, blast furnace runners, taphole clay | In Stock |
| ChamotteCalcined Fireclay | ~45% | Fireclay bricks, kiln furniture, glass tank furnace construction, iron and steel plant linings | In Stock |
| Sintered Mullite3Al₂O₃·2SiO₂ | 45–70% | High-temp kiln furniture, glass furnace refractories, advanced ceramics, petrochemical reactor linings | In Stock |
| Brown Fused AluminaBFA · Multiple mesh sizes | 95–99% | Refractory castables, grinding and cutting wheels, abrasive blasting, wear-resistant coatings | In Stock |
| White Fused AluminaWFA · High purity | ≥99% | Premium refractory castables, precision abrasives, advanced ceramics, polishing compounds | Order from China |
| Calcined AluminaMultiple activity grades | ≥99% | High-performance castables, advanced ceramics, catalyst carriers, specialty coatings | Order from China |
| Reactive AluminaHigh surface area | ≥99% | Ultra-low-cement and low-cement refractory castables requiring high reactivity binder | Order from China |
Full technical data sheets — including particle size distribution, chemical composition, bulk density and refractoriness — available to qualified buyers on request.
"Our documentation provides an unbroken chain of custody from mine to delivery — meeting the requirements of ISO 9001 quality audits, EU customs compliance, and supply chain sustainability assessments."
Our thermal interface material range is produced by our specialist advanced materials subsidiary, operating dedicated spheroidisation facilities developed with Japanese technology.
The portfolio covers the full performance and cost spectrum — from cost-effective alumina fillers to premium boron nitride and aluminium nitride grades — all from a single vertically integrated source. Over 20% global market share in spherical mineral products. More than 100 customers worldwide.
Performance is benchmarked against leading Japanese and European producers. Pricing reflects our direct manufacturing origin.
| Product | Characteristics | Typical Applications |
|---|---|---|
| Alumina-Based Fillers | ||
| Spherical AluminaAl₂O₃ ≥99% · Multiple D50 | Optimised packing density, minimal viscosity increase. Multiple particle size grades and blends available | Thermal interface pads, encapsulants, potting compounds, thermal grease, EV battery thermal management |
| Roundish AluminaAl₂O₃ ≥99% | Intermediate morphology between spherical and angular. Good flowability with cost advantage | Epoxy moulding compounds, underfill materials, polymer composites |
| Angular AluminaAl₂O₃ ≥99% | High surface area, good bonding characteristics. Cost-effective entry point for thermal management | Filled resins, adhesives, thermally conductive polymer systems |
| ATHAluminium Trihydrate | Dual function: thermal conductivity and flame retardancy in a single filler material | EV battery encapsulation, cable compounds, flame-retardant polymer systems, wire & cable |
| Boron Nitride | ||
| Boron NitridehBN · Hexagonal | Premium electrically insulating thermal filler. High thermal conductivity, low dielectric constant | High-frequency substrates, power electronics, demanding thermal interface materials |
| Spherical Boron NitrideSpherical hBN | Spherical morphology significantly improves packing density and composite thermal performance | Advanced TIM pads, high-performance encapsulants, 5G devices, power electronics |
| Aluminium Nitride & Oxides | ||
| Aluminium NitrideAlN | Ultra-high thermal conductivity, full electrical insulation, low thermal expansion | Power modules, automotive electronics, LED substrates, high-performance semiconductors |
| Spherical AlNSpherical Aluminium Nitride | Spherical morphology maximises loading and thermal performance in demanding formulations | High-power electronics, IGBT modules, automotive-grade thermal interface materials |
| Spherical MgOSpherical Magnesium Oxide | High thermal conductivity oxide. Cost-effective mid-range option between alumina and aluminium nitride | Thermal pads, polymer composites, mid-range thermal management applications |
| Silicon DioxideHigh-purity SiO₂ | Low thermal expansion, excellent electrical insulation, compatible with standard resin systems | Epoxy moulding compounds, underfill, surface mount adhesives, encapsulants |
| Specialty Applications | ||
| Spherical Iron Oxide Spherical Barium Titanate | Engineered spherical morphology for specialist electromagnetic applications | EMI absorption, dielectric applications. Contact us for technical details and availability |
Our road materials range covers specialist anti-slip surfacing aggregate and decorative surfacing systems. Calcined bauxite aggregate is held in Liverpool for fast UK delivery.
Anti-Slip Surfacing — Specialist Bauxite Aggregate
Our calcined bauxite aggregates for specialist anti-slip surfacing have been developed and refined over more than twenty years for the UK market. We supply manufacturers of surfacing products — an established relationship with this industry that predates most of the current competitive field.
Available in four proprietary grades, each developed for specific performance and colour requirements within epoxy and resin-based surfacing systems:
Full technical data sheets and specifications are provided to qualified surfacing product manufacturers on request.
Decorative Surfacing Aggregate
Synthetic coloured aggregates, granites, and quartz for resin-bound and resin-bonded decorative surfacing. Available on order, shipped directly from production.
| Product | Characteristics | Applications | Availability |
|---|---|---|---|
| Coloured AggregatesHigh Temp · Mohs 7–8 | Calcined 1200–1300°C. Full-body pigmentation throughout. High angularity, low crushing value | High-durability decorative surfacing, car parks, pedestrian areas, cycle lanes | Order from China |
| Granite Quartz |
Natural aggregate. Multiple sizes and colours available on enquiry | Resin-bound surfacing, decorative concrete, architectural finishes | On Enquiry |
Our kaolin range is produced at our dedicated calcination plant in Hebei province, with 100,000 tonnes annual capacity. Products are marketed under the Snowwhite and Snowbright brands.
Our primary focus is Metakaolin — a highly reactive pozzolanic material for high-performance cementitious and geopolymer applications, where consistent quality and reliable supply are critical.
A thermally activated, highly reactive pozzolanic material produced by controlled calcination of hydrous kaolin. Metakaolin reacts with calcium hydroxide to form additional cementitious compounds, improving strength, durability, and the sustainability credentials of concrete and mortar systems.
| Product | Brand | Key Properties | Applications |
|---|---|---|---|
| Calcined Kaolin | Snowwhite 80 / 86 | Whiteness R457 ≥93–95 Moisture ≤0.5% Oil absorption 50–65 g/100g | Wire & cable insulation, paints, fibre glass, rubber, ceramics |
| Flash Kaolin | Snowpaque | High whiteness, fine particle distribution, low residuals on 325 mesh | Paints, coatings, paper filling and coating |
| Hydrous Kaolin | Snowbright HW / HM | Whiteness R457 ≥84–93.5 Plate-like particle structure Multiple particle size grades | Paints, coatings, adhesives, rubber, plastics, thermal paper, nitrile gloves |
Our supply chain begins at the mine. Our manufacturing partner holds its own mining rights in Guizhou province — a bauxite reserve of five million tonnes with 100,000 tonnes annual extraction capacity. Eight production facilities across four provincial regions handle calcination, crushing, classification, spheroidisation, and kaolin processing, supported by an in-house R&D centre and a joint laboratory with Tianjin University.
Our supply chain was built over three decades before supply chain resilience became an industry talking point. Owning the mine, the production process, and the European warehousing means we can make commitments that purely trading-based suppliers cannot.
Every consignment shipped through Leader UK carries the full documentation required for UK and EU import compliance, ESG supply chain audits, and quality management certification — including certificates of analysis, certificates of origin, and complete customs documentation.
As EU and UK manufacturers face increasing requirements under the Corporate Sustainability Due Diligence Directive and mandatory ESG supply chain reporting, the compliance status of your mineral inputs matters more than ever.
Leader UK provides a supply route that withstands scrutiny at every level — complete documentation, verified origin, fully compliant import procedures, and a chain of custody that supports your own quality and sustainability commitments.
Sustainable operation is a prerequisite for long-term supply reliability. Our manufacturing partner has invested in energy efficiency, environmental management, and supply chain transparency across all facilities.
Systematic energy efficiency improvements across production facilities, including photovoltaic power generation, waste heat utilisation, and the transition of logistics equipment to electric operation. Managed under an ISO 50001 certified energy management system.
Environmental impact management across all mining, processing, and logistics operations under an ISO 14001 certified system. Environmental protection systems invested across production facilities to meet regulatory standards.
Carbon footprints of our products have been independently assessed and verified. Data available to customers for Scope 3 emissions reporting and EU Carbon Border Adjustment Mechanism (CBAM) compliance requirements.
EcoVadis sustainability assessments completed for our manufacturing group and advanced materials subsidiary. Assessments available to customers for supply chain due diligence and ESG procurement qualification processes.
Independently audited certification across quality, environment, energy, occupational safety, automotive supply, and sustainability.
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