Your buyers want proof of where your tin, tantalum, tungsten and gold came from. This guide shows you how to give it to them, step by step.
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Smelters, refiners and manufacturers in Europe, the United States and Asia now ask detailed questions before they buy tin, tantalum, tungsten or gold. They want to know which mine your mineral came from, who handled it, who was paid along the way, and whether any armed group, child labour or illegal payment is linked to it.
Exporters who can answer get faster approvals, more buyers and better prices. Exporters who cannot are quietly dropped, or offered a lower price.
This guide explains the rules in plain language and shows you how to build a due diligence system that a smelter’s auditor will accept, even if you are a small company.
Establish strong management systemsPolicy, responsible person, records and supplier engagement
Identify and assess riskMap the supply chain and check for red flags
Respond to identified risksMitigate, suspend or disengage, with a written plan
Independent third-party auditOf the smelter or refiner’s due diligence
Report annuallyPublish what you did and what you found
Each step has its own chapter in Part 2, with checklists and worked examples.
From what “conflict minerals” really means to a complete due diligence system for a Nigerian or West African exporter.
The definition, the history, the four 3TG supply chains and why the rules matter to you.
Structure, Annex II model policy and all five steps, plus the tin, tantalum, tungsten and gold supplements.
Dodd-Frank Section 1502, EU Regulation 2017/821, China’s CCCMC guidelines and other national rules.
RMI, RMAP audits, the CMRT, ITSCI, upstream traceability schemes and the ICGLR certificate.
Policy, know-your-supplier, chain of custody, field risk assessment, mitigation and audit preparation.
3TG deposits and trade routes, the Nigerian legal framework and a roadmap for Nigerian exporters.
Worked cases, what is coming after 3TG, and answers to the questions exporters ask most.
Fourteen ready-to-use templates, checklists, a glossary, sources, case studies and contract clauses.
The heart of the OECD rules is Annex II, the model supply chain policy. It tells you exactly which risks require you to suspend a supplier immediately, and which you can work to reduce while you keep trading.
The guide explains every category with field examples, so you and your buyers make the same call.
Simplified from Annex II of the OECD Due Diligence Guidance. Full wording and examples in Chapter 6.
Your buyer may be bound by US law, EU law, an industry audit or all three. The guide compares them so you know what each buyer will ask you for, and prepares one information pack that answers them all.
| Instrument | Type | Core demand |
|---|---|---|
| OECD Due Diligence Guidance | International guidance | Five-step risk-based due diligence; Annex II policy |
| Dodd-Frank §1502 | U.S. federal law | Annual Form SD; Conflict Minerals Report |
| Regulation (EU) 2017/821 | EU law | OECD-based due diligence, audit, annual disclosure |
| ICGLR Certification | Regional mechanism | Mine inspection, chain of custody, certificate |
| RMI / RMAP | Industry programme | Smelter and refiner audits; CMRT reporting |
From the “at a glance” comparison at the front of the guide.
A clean dossier layout with rule-text boxes, red-flag lists, Nigerian field notes, compliance checks, charts and fill-in templates.
Copy them, adapt them to your company and put them to work.
A complete 3TG policy aligned with Annex II.
Ownership, licences, sites, payments and declarations.
Sixteen questions for every supplier and shipment.
Every document a buyer’s auditor will ask for.
How the RMI reporting template works.
A step 5 report outline you can publish.
Risk management plan, grievance log and site checklist.
Real-world scenarios with questions and commentary.
Model wording for supplier engagement and purchase agreements.
Win buyers faster with a due diligence file that answers their questions before they ask.
Understand what buyers need from the mine site, and how to keep your market access.
Compliance and procurement teams sourcing tin, tantalum, tungsten or gold from Africa.
A clear map of the rules, risks and programmes shaping the sector.
The OECD Guidance, Dodd-Frank, the EU Regulation and the ICGLR in plain language.
Learners at the Augustina Impex Mining Academy and anyone entering the mineral trade.
Kolawole King is the Chief Executive Officer of Augustina Impex Limited, a mineral sourcing and export company in Jos, Plateau State, the historic centre of Nigeria’s tin, columbite and tantalite trade. He works daily with miners, buying centres, laboratories and international buyers, with exports executed through licensed partner Jase Odus Nigeria Limited.
He founded the Augustina Impex Mining Academy, whose titles include Africa’s Critical Minerals, Coltan in Africa, Lithium Ore in Nigeria, Monazite Sand in Nigeria, Bastnäsite in Nigeria, From Pit to Port and Buying Minerals from Nigeria.
Kolawole KingChief Executive Officer, Augustina Impex Limited
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Yes. The guide is written for small and medium upstream companies. It shows how to build a simple, credible system with a policy, supplier files, lot and shipment registers and site visits, without expensive software.
Yes. Gold has its own supplement under the OECD Guidance and its own chapter, covering the LBMA Responsible Gold Guidance, artisanal gold, recycled gold and refiner expectations.
No. The rules and tools apply worldwide. Part 6 is dedicated to Nigeria and West Africa, with a practical roadmap for Nigerian exporters.
No. It is a practical guide that explains the rules in plain language. For decisions with legal consequences, consult a qualified lawyer.
Yes. Augustina Impex Limited sources and exports tin, columbite, tantalite, lithium ores, monazite and other minerals from Nigeria through licensed partner Jase Odus Nigeria Limited. Contact augustinaimpex@gmail.com or WhatsApp +234 906 090 4274.
The Augustina Impex Mining Academy also publishes Africa’s Critical Minerals, Coltan in Africa, Lithium Ore in Nigeria, Monazite Sand in Nigeria, Bastnäsite in Nigeria, From Pit to Port and Buying Minerals from Nigeria. See the full eBooks library.