Import Coltan — Buy in wholesale FOB from Supplier in United States
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Coltan
Willett Mining Corporation, based in Las Vegas, Nevada, USA, supplies premium Colombian coltan concentrate. The concentrate is graded at 32-36% tantalum pentoxide (Ta2O5) and 12-16% niobium pentoxide (Nb2O5). In deeper vein material the tantalum content can reach 51.825% Ta2O5. Shipments are loaded in sealed steel barrels of 5,000 kg each and can be dispatched weekly or bi-weekly.
Coltan of this grade is typical for the global market, where commercial concentrates usually contain 30-40% Ta2O5 and 10-15% Nb2O5. The material is processed to a fine powder with moisture below 0.5% and impurity levels of iron and magnesium not exceeding 2%. Standard assay of the concentrate is performed by X-ray fluorescence (XRF) according to industry practice. These specifications meet the requirements of most tantalum capacitor manufacturers and niobium alloy producers.
The product is primarily used in the production of tantalum electrolytic capacitors for consumer electronics and in high-strength niobium alloys for aerospace and energy sectors. International smelters and refineries seeking conflict-free strategic minerals are the main buyers. Prospective purchasers should request the full assay report, confirm the packaging specifications and negotiate Incoterms and payment terms directly with Willett Mining Corporation.
| Tantalum pentoxide (Ta2O5) content | 32-36% (graded), up to 51.825% in deeper vein material |
| Niobium pentoxide (Nb2O5) content | 12-16% (graded) |
| Typical Ta2O5 range for commercial coltan | 30-40% typical |
| Typical Nb2O5 range for commercial coltan | 10-15% typical |
| Shipment weight per barrel | 5,000 kg |
| Typical packaging | sealed steel barrels, standard for bulk mineral export |
| Standard assay method | X-ray fluorescence (XRF) analysis |
| Typical moisture content of concentrate | <= 0.5% typical |
| Typical impurity limit (Fe, Mg) | <= 2% typical |
| Standard HS code | 8105.90 (Coltan) typical |
Willett Mining Corporation operates from Las Vegas, Nevada, United States. The company holds a Harbour-tier verification on the marketplace, indicating that its business details have been cross-checked, although its recorded response rate is currently zero. Its listed address is 89123 Las Vegas, NV, United States.
The supplier advertises premium Colombian coltan concentrate with the grades described in the product listing and emphasizes long-term contracts with partners that share a humane and economic approach to global mineral trade. No additional certifications or production capacity figures are provided in the listing, so buyers should request those documents directly.
Premium Colombian Coltan (Columbite-Tantalite) concentrate available for export, graded at 32%-36% tantalum pentoxide (Ta2O5) and 12%-16% niobium pentoxide (Nb2O5) with Ta values reaching as high as 51.825% in deeper vein material. This critical mineral is essential for manufacturing tantalum capacitors used in electronics, as well as high-strength niobium alloys for aerospace and energy applications. Supplied in sealed barrels at 5,000 kg per shipment with flexible weekly or bi-weekly flight departures from Colombia. Ideal for international smelters and refineries sourcing conflict-free strategic minerals.
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Sourcing Coltan from Willett Mining Corporation - United States Import Guide
Before placing an order with Willett Mining Corporation, importers should verify that the coltan concentrate is certified conflict-free and that a recent XRF assay report is available. The supplier’s Harbour-tier status confirms basic identity, but buyers must also confirm the exact Ta2O5 and Nb2O5 percentages for the intended batch. Request copies of the assay certificate, origin documentation and any relevant export licences.
Logistics for this product involve sealed steel barrels of 5,000 kg each, dispatched from Colombia on a weekly or bi-weekly schedule. Importers need to agree on Incoterms such as CIF or FOB at the departure port and clarify the expected lead time, which depends on flight availability. Payment terms are not disclosed in the listing, so they should be negotiated directly, with common options including a letter of credit or advance payment.
Quality control should include a third‑party inspection of the barrel seal integrity and a re‑analysis of the Ta and Nb contents upon arrival. Documentation to collect includes the assay certificate, material safety data sheet and customs clearance papers. Maintaining these records will help satisfy downstream smelters’ compliance requirements and facilitate smooth customs clearance.
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30 suppliersBuy Coltan in Bulk — Verified Supplier in United States
When sourcing Coltan for your business, securing the right balance of quality and cost is essential. Willett Mining Corporation, a verified supplier based in United States, offers this product with key specifications including Coltan / Columbite-Tantalite Ore Concentrate, 32%-36% (up to 51.825% Ta in higher-grade material), and 12%-16%. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $280,000350,000./Unit and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. This product is actively traded under HS Code 2615.90, making it a staple in the Other Ores & Minerals sector with strong demand from importing countries worldwide.
Coltan Specifications, Trade Terms & Pricing
Importing Coltan requires careful attention to shipping logistics, customs compliance, and secure payment terms. Willett Mining Corporation offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 2615.90 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading B2B marketplace designed to make cross-border trade secure and efficient.
About Willett Mining Corporation — Supplier in United States
Finding trustworthy partners is the foundation of successful importing. The supplier of this Coltan has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Other Ores & Minerals category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Coltan — Shipping, Logistics & Customs
Importing Coltan requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 2615.90 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Coltan
What is the wholesale price of Coltan?
The current listed wholesale price for Coltan from Willett Mining Corporation is $280,000350,000./Unit on FOB terms from United States. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Willett Mining Corporation through EximNext.
What is the Minimum Order Quantity (MOQ) for Coltan?
The supplier, Willett Mining Corporation, has set a Minimum Order Quantity (MOQ) of 1 Unit for Coltan. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Coltan?
For international shipping and customs clearance, Coltan is classified under HS Code 2615.90. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Coltan from United States?
To import Coltan from United States, negotiate shipping terms (FOB, CIF, or EXW) directly with Willett Mining Corporation. Ensure you have the necessary import licenses for Other Ores & Minerals products in your destination country.
Is Willett Mining Corporation a verified supplier?
Yes, Willett Mining Corporation is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Coltan?
The key specifications for Coltan supplied by Willett Mining Corporation include Coltan / Columbite-Tantalite Ore Concentrate, 32%-36% (up to 51.825% Ta in higher-grade material), and 12%-16%. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Coltan?
Willett Mining Corporation offers Coltan with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Coltan the most?
Coltan is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Willett Mining Corporation through our platform.
What certifications does this Coltan supplier hold?
Willett Mining Corporation maintains international quality certifications. These ensure that the Coltan meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Coltan on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Willett Mining Corporation will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Willett Mining Corporation.
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