High-Grade Smelter
Copper Concentrates.
Primary Smelting Feedstock
HUTKA SA secures and distributes premium copper concentrates processed via advanced froth flotation. Sourced from Tier-1 mining jurisdictions across the Americas, our concentrates serve as the primary raw material for custom smelters globally.
We deliver a highly consistent product with optimized moisture levels and rigorously controlled penalty elements, maximizing metal recovery and operational efficiency for our refining partners in Asia and Europe.
Assay & Element Profile
Our copper concentrates are offered with a nominal Cu base of 25-30%. Final settlement assays for payable metals (Cu, Au, Ag) and deductions for penalty elements are determined based on mutual agreement or umpire laboratory results.
| Base Elements & Credits | |
|---|---|
| Copper (Cu) | 25.0% – 30.0% (Base) |
| Moisture (H2O) | 8.0% Max. |
| Gold (Au) Credits | As per specific lot assay |
| Silver (Ag) Credits | As per specific lot assay |
| Sulfur (S) | 25.0% – 35.0% |
| Standard Penalty Thresholds | |
|---|---|
| Arsenic (As) | 0.20% Threshold |
| Bismuth (Bi) | 0.02% Threshold |
| Antimony (Sb) | 0.05% Threshold |
| Lead (Pb) | 1.0% Threshold |
| Zinc (Zn) | 3.0% Threshold |
Safe Handling & Moisture Control
Managing moisture in concentrates is critical to prevent liquefaction during ocean transit. HUTKA SA operates covered, well-ventilated stockpile facilities at export terminals.
Our logistics teams rigorously manage stockpile turnover and utilize specialized moisture-reduction processes to ensure all shipments fall safely below the Transportable Moisture Limit (TML) set by the International Maritime Organization (IMO).
Responsible Mining & Tailings Management
HUTKA SA partners exclusively with mines that adhere to strict ESG protocols, including the Global Industry Standard on Tailings Management (GISTM). We ensure our upstream sources utilize closed-loop water systems to minimize environmental impact and actively invest in the development of local indigenous communities surrounding the extraction sites.
Bulk Logistics & Export Protocols
Prior to loading, BQCIS draws composite samples to certify the Transportable Moisture Limit (TML) and Flow Moisture Point (FMP), ensuring absolute vessel safety.
Loading Formats
Depending on buyer volume, concentrates are either loaded loose into Bulk Carrier holds via conveyor systems, or packaged into 2MT Jumbo Bags (FIBCs) for containerized freight.
Draft Survey (Weight)
For bulk ocean freight, final wet metric tonnage (WMT) is determined by an independent Marine Draft Survey conducted by BQCIS alongside the ship’s Master.
Umpire Sampling
Representative samples are sealed and retained. In the event of a discrepancy between loading and discharge assays, samples are sent to an agreed umpire laboratory (e.g., AHK).
Standard Commercial Documentation
Every shipment is cleared for international customs with a comprehensive, fully compliant document packet dispatched via express courier to the buyer’s bank or office.
- Provisional Commercial Invoice
- Draft Survey Report (Bulk Weight)
- Full Set Clean on Board Bill of Lading (B/L)
- Certificate of Origin
- BQCIS Certificate of Assay (Provisional)
- BQCIS Transportable Moisture Limit (TML) Certificate
- BQCIS Moisture Declaration
- Insurance Policy / Certificate (If CIF)
- Export Declaration Forms