Genuine copper suppliers in the DR Congo: the checks that tell them apart

Where Congolese copper comes from

Nearly all of the DR Congo’s copper is mined in the Copperbelt provinces of Lualaba (around Kolwezi) and Haut-Katanga (around Lubumbashi and Likasi). The country is among the world’s largest copper producers, and output is dominated by large industrial mines that sell under long-term offtake contracts.

Spot cargoes offered to new buyers more often come from processors, traders and smaller operations, and travel by road through Zambia or Tanzania to Dar es Salaam, Durban, Walvis Bay or Beira. Each step adds a party to verify.

What makes a supplier genuine

In practice “genuine” comes down to four questions, each answered by a record outside the supplier’s control:

RCCM and CAMI: the company and its title

Every Congolese company has an RCCM number (Registre du Commerce et du Crédit Mobilier) and a national identification number. We confirm the record and the managers with the registry.

Mining titles — exploitation permits (PE), small-mine permits (PEPM) and research permits (PR) — are recorded by CAMI, the mining cadastre, under the 2002 Mining Code as revised in 2018. A research permit does not authorise commercial production; a processing or trading company needs its own authorisation rather than a mine’s title. We confirm the title type, holder, area and validity. See how to verify a mining licence.

Export documents for Congolese copper

• Export authorisation for the consignment from the mining authorities.
• OCC inspection — the Office Congolais de Contrôle inspects and samples mineral exports.
• Certificate of non-radioactivity — required for mineral exports, because some Katangan ores carry naturally occurring radioactive material.
• Certificate of analysis from the laboratory, and weight and packing lists.
• Certificate of origin and customs declarations.
• Transit documents for Zambia or Tanzania, and the road or rail consignment notes.

We confirm each with the body that issued it, using contact details we find independently. See document authentication.

Inspecting the copper in Kolwezi or Lubumbashi

Photos supplied by a seller cannot show whose copper is in the picture or when it was taken. An inspection does: our inspector visits the warehouse or mine, counts and weighs, reads brand and lot marks on cathodes, draws supervised samples from concentrate or hydroxide bags, and records everything with dated photos and video. Samples go to ISO/IEC 17025-accredited laboratories, with the certificate issued to you.

See mine and warehouse inspection and the DR Congo location page.

Cathode grade: LME and non-LME

Several Congolese producers have LME-registered cathode brands. A cathode sold as LME Grade A must carry one of those brands and meet BS EN 1978:1998 (Cu-CATH-1) or ASTM B115 Grade 1. Cathode from a non-registered source can still be high purity, but it is a different product and is priced differently. The brand marks stamped on the plates are the first thing we check against the certificates.

What checks on Congolese copper offers most often turn up

Most findings are ordinary and fixable once they are known. The ones we see most often:

• The seller is a trader whose authority to sell comes from another company, and the written mandate has not been confirmed by that company.
• The cathode brand on the certificates differs from the marks stamped on the plates in the warehouse.
• The quantity in the warehouse is lower than the quantity offered, or the lot is already committed to another buyer.
• The export authorisation, OCC report or non-radioactivity certificate is for a different consignment or has expired.
• Concentrate grade on the seller’s certificate differs materially from the grade of a sample drawn under supervision.

Each one is a fact the buyer can act on — renegotiate, ask for the missing document, or step away — before money moves.

Route, border and delivery terms

Most Congolese copper leaving by road crosses into Zambia at the Kasumbalesa border post before heading to a port. Where the copper changes hands matters: a buyer taking delivery at the mine gate (EXW or FCA) carries the transport, border and port risk; a buyer buying CIF or CFR at the port does not, but has less control over the lot on the way.

Whatever the term, the inspection and the sealing should happen where the risk passes to you, and the contract should say so. Your contract covers the terms; our inspectors cover the lot.

Structuring payment for DRC copper

• Tie each payment to a confirmed event: inspection passed, independent assay received, loading witnessed and sealed, documents confirmed.
• Use a letter of credit or documentary collection for larger lots, with the inspection report and the laboratory certificate named as required documents.
• Pay only into an account in the selling company’s own name.
• Agree in the contract which laboratory settles a dispute over grade, and how the cost is shared.

Responsible sourcing

Buyers selling on to smelters, traders or manufacturers are increasingly asked for origin and chain-of-custody information under the OECD Due Diligence Guidance. For copper this usually means confirming the mine or processing plant, the transport route and that the seller’s ownership chain is documented. Our reports record each link we could confirm.

Having a Congolese copper supplier verified

We verify suppliers and inspect lots in Lualaba and Haut-Katanga. Nairank Global does not trade copper. Send us the supplier’s name and offer at supplier due diligence, or book an inspection at testing and inspection.