Coltan (Columbite-Tantalite) — Certified Critical Mineral Concentrate
Sovereign high-density concentrate originating directly from certified concessions in the North Kivu and Katanga Belts. Validated through continuous on-site spectrometry and full-spectrum nuclear regulatory verification for international export.
LOT-DRC-KIVU-451-CONC
Apex Central Metallurgy Lab, Goma Station. Verified high-grade sample & pulverized fraction.
Capacitor Grade
Exceptional volumetric charge capacitance for 5G telecommunications and automotive chips.
Aero-Superalloys
High melting point resistance (3,017°C) suited for turbine engines and structural spacecraft matrices.
Medical Bio-Inert
Total biocompatibility for neuro-prosthetic meshes, surgical instruments, and orthopedic implants.
The Keystone of Modern Microelectronics
Coltan is the non-negotiable bedrock of advanced computation. Apex Minier Limited guarantees international metallurgical refiners direct, uncompromised access to high-concentration Columbite-Tantalite derived exclusively from verified non-conflict perimeters.
Operating within strict alignment with the Democratic Republic of Congo Mining Code (Law No. 18/001), each batch undergoes gravimetric extraction and magnetic induction separation prior to sealing under CEEC (Centre d'Expertise, d'Evaluation et de Certification) oversight.
Every metric ton delivered features tamper-evident barcoded seals linked to our immutable export ledger, satisfying Dodd-Frank Section 1502 and EU Regulation 2017/821 mandates.
Goma / Lubumbashi → Dar es Salaam / Mombasa Smelters
Export manifest customs clearance via DGDA (Direction Générale des Douanes et Accises) and OCC inspection certification issued prior to port dispatch.
Certified Laboratory Specifications
Certified values extracted from multi-lot composite assays utilizing Wavelength Dispersive X-Ray Fluorescence (WDXRF) and Inductively Coupled Plasma Mass Spectrometry (ICP-MS).
| Element / Analyte | Chemical Formula | Contract Benchmark | Typical Range | Detection Method |
|---|---|---|---|---|
| Tantalum Pentoxide | Ta₂O₅ | ≥ 30.00% Min | 28.50% – 42.10% | WDXRF / ICP-OES |
| Niobium Pentoxide | Nb₂O₅ | ≥ 22.00% | 20.40% – 34.80% | WDXRF |
| Titanium Dioxide | TiO₂ | ≤ 4.50% Max | 1.80% – 3.90% | ICP-MS |
| Total Iron Oxides | Fe₂O₃ + FeO | ≤ 12.00% Max | 8.20% – 11.50% | Titration / XRF |
| Silicon Dioxide | SiO₂ | ≤ 5.00% Max | 2.10% – 4.20% | Gravimetric |
| Uranium + Thorium Combined | U + Th | < 0.10% (Exempt) | 0.02% – 0.07% | Gamma Spectrometry |
50kg UN-Rated Drums
Steel industrial containers with reinforced ring seals, anti-humidity desiccants, and tamper-evident numeric serialization. Palletized and shrink-wrapped for maritime transport.
0.1mm – 3.0mm Sand
Uniformly concentrated alluvial sand through centrifugal and spiraling classification. Screened to optimize smelting feed input and eliminate ultra-fine dust attrition.
≤ 0.5% Free Moisture
Oven-dried before sealing and weight certification on Mettler Toledo Class III industrial balances. Certified moisture loss testing documentation included with every bill of lading.
Coltan Beneficiation & Logistics Chain
Apex Minier Limited maintains integrated control across the critical mineral value chain, ensuring every gram is refined, tagged, and delivered with verifiable sovereignty.
Magnetic Induction & Beneficiation
Raw artisanal and open-pit run-of-mine ores are conveyed through high-intensity magnetic separation (HIMS) and density shaker tables to liberate gangue quartz and iron minerals, driving tantalum pentoxide concentrations up to 42%.
- Dry and wet magnetic separators
- Heavy media liquid float testing
Nuclear Assays & IAEA Clearance
Every lot undergoes comprehensive spectral analysis for Naturally Occurring Radioactive Material (NORM). Certified non-radioactive transport certificates are issued under CEEC and Ministry of Mines validation prior to air or sea freight loading.
- Multi-point radiation dosimetry
- International airworthiness documentation
Corridor Export & Smelter Delivery
Consignments receive secure armed escort from Goma and Lubumbashi depots to bonded transit corridors in East Africa, facilitating frictionless direct CIF or FOB vessel boarding for certified European, North American, and East Asian smelters.
- Full transit insurance & seal auditing
- Incoterms 2020: CIF, FOB, or CIP options
Mine-to-Port Bag-and-Tag Framework
Under the International Tin Supply Chain Initiative (ITSCI) and the ICGLR Regional Certification Mechanism, Apex Minier maintains zero-tolerance traceability. Every batch originates from mine sites formally validated as "Green" by joint ministerial verification teams.
Tamper-Evident Bag Seals
Individually numbered barcode seals entered directly into the DRC national traceability database before dispatch.
ICGLR Certificate of Origin
Official multilateral certificate legally declaring the mineral lot conflict-free under Great Lakes treaty agreements.
Independent Chain Auditing
Annual third-party audit reports made accessible to authorized institutional compliance officers.
Verified Chain Summary
Coltan Allocation & Procurement Application
Apex Minier Limited conducts transactions strictly with certified refiners, smelters, and regulated electronics industrial purchasers. Complete the requisition to initiate compliance review.
Your file reference has been assigned: APEX-COL-2026-REQ-88. The Apex Export Desk in Kinshasa will contact your registered corporate officer with preliminary assay logs and current allocation schedules.