Conflict Minerals in the DRC — Compliance Guide for Investors

What Are Conflict Minerals?

Conflict minerals are natural resources whose extraction and trade are linked to armed conflict, human rights abuses, and the financing of non-state armed groups. The term has acquired specific regulatory meaning through US and EU legislation that designates four minerals — tin, tantalum, tungsten, and gold, collectively known as 3TG — as conflict minerals when sourced from the Democratic Republic of the Congo or adjoining countries.

The designation reflects the documented reality that the trade in these minerals has funded armed groups responsible for mass atrocities, sexual violence, forced displacement, and the perpetuation of one of the world's longest-running humanitarian crises. For more than two decades, armed factions in eastern DRC have financed their operations partly through the control of mining sites and the taxation or extortion of mineral trade routes. The connection between minerals and conflict has made the DRC the defining case study in the field of conflict minerals governance.

The 3TG Minerals

It is important to note what conflict minerals regulation does not cover. Cobalt, despite the well-documented human rights concerns in DRC artisanal mining, is not classified as a conflict mineral under either US or EU legislation. This is because cobalt mining in the DRC is concentrated in the southern Katanga-Lualaba region, which has not experienced the armed conflict that characterises eastern DRC. However, cobalt faces its own regulatory frameworks (EU Battery Regulation, OECD Due Diligence Guidance) that impose supply chain responsibility requirements. Similarly, copper and other minerals mined in the DRC are not conflict minerals under 3TG frameworks, though they may be subject to broader human rights due diligence requirements under emerging legislation.

DRC Conflict Dynamics and Mineral Financing

The DRC's conflict minerals problem is rooted in the country's protracted security crisis, centred in the eastern provinces of North Kivu, South Kivu, Ituri, Tanganyika, and Maniema. Since the late 1990s, this region has been plagued by armed conflict involving dozens of militia groups, foreign armed forces, and factions of the Congolese military itself. The conflict has killed millions of people (the majority through disease and starvation caused by displacement) and has been described by the International Rescue Committee as the deadliest conflict since World War II.

Armed Groups and Mineral Control

Multiple armed groups have financed their operations through the control of mining sites and mineral trade routes in eastern DRC. Historically, the most prominent include the Democratic Forces for the Liberation of Rwanda (FDLR), various Mai-Mai militia factions, the M23 rebel movement (which has resurgent in recent years with alleged Rwandan backing), and rogue elements of the Congolese armed forces (FARDC). These groups exert control through direct operation of mining sites, taxation of miners and traders, roadblock extortion along transport routes, and forced labour.

The minerals most affected are those mined artisanally in eastern DRC — primarily tantalum (coltan), tin (cassiterite), tungsten (wolframite), and gold. Gold is particularly problematic because of its high value-to-weight ratio, ease of smuggling, and the difficulty of tracing its origin once it enters the global market. UN reports have estimated that hundreds of millions of dollars' worth of gold is smuggled out of eastern DRC annually, with significant volumes transiting through Uganda, Burundi, and Rwanda before entering international markets.

Geographic Distinction

A critical distinction for investors is the geographic separation between eastern DRC's conflict zones and the southern DRC mining regions that produce copper and cobalt. The Katanga-Lualaba Copperbelt, where the Lobito Corridor's mining operations are concentrated, is approximately 1,500 kilometres from the active conflict zones in eastern DRC. While the Copperbelt is not free from security concerns or governance challenges, it does not experience the armed conflict, militia activity, or mineral financing dynamics that characterise eastern DRC. This geographic distinction is important for investors evaluating conflict mineral risk in corridor-related projects.

The Regulatory Framework

Conflict minerals regulation has evolved rapidly since the late 2000s, creating a multi-layered framework of mandatory and voluntary obligations that companies must navigate when sourcing minerals from the DRC or neighbouring countries.

US Dodd-Frank Act — Section 1502

Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act (2010) was the first major conflict minerals regulation. It requires publicly listed companies in the United States to determine whether 3TG minerals (tin, tantalum, tungsten, gold) used in their products originated in the DRC or adjoining countries (Republic of Congo, Central African Republic, South Sudan, Uganda, Rwanda, Burundi, Tanzania, Zambia, Angola). If so, companies must conduct due diligence on the source and chain of custody of those minerals and file an annual Conflict Minerals Report with the Securities and Exchange Commission (SEC).

Section 1502 applies to approximately 6,000 SEC-reporting companies and has had far-reaching effects on mineral supply chain practices. The regulation does not prohibit sourcing from the DRC but requires transparency about sourcing practices. In practice, some companies responded by avoiding DRC-sourced minerals entirely (a phenomenon known as the de facto embargo), while others invested in traceability and responsible sourcing programmes to maintain DRC supply chains. The de facto embargo effect was particularly damaging for legitimate artisanal miners in eastern DRC, who lost market access as buyers sought conflict-free alternatives from other countries.

EU Conflict Minerals Regulation

The EU Conflict Minerals Regulation (Regulation 2017/821), which became mandatory in January 2021, requires EU importers of 3TG minerals and metals to conduct supply chain due diligence consistent with the OECD Due Diligence Guidance. Unlike Dodd-Frank, which applies to downstream product manufacturers, the EU regulation primarily targets upstream importers — companies that import raw minerals or metals into the EU above specified volume thresholds. The regulation covers imports from all conflict-affected and high-risk areas worldwide, not only the DRC region.

The EU regulation requires importers to identify and assess supply chain risks, implement a management system for due diligence, report to national competent authorities, and undergo third-party audits. Member state authorities are responsible for monitoring compliance, and non-compliant importers face administrative penalties.

EU Battery Regulation

The EU Battery Regulation (2023) extends due diligence requirements beyond 3TG to include cobalt, lithium, natural graphite, and nickel — the key battery minerals. Companies placing batteries on the EU market must conduct due diligence on the sourcing and processing of these materials, consistent with internationally recognised standards. This regulation is particularly significant for the cobalt battery supply chain, as it creates mandatory due diligence obligations for a mineral not covered by 3TG conflict minerals frameworks.

Other National Frameworks

Australia, the United Kingdom, and several other countries have implemented or are developing mandatory human rights due diligence legislation that applies to mineral supply chains. The UK Modern Slavery Act (2015), the Australian Modern Slavery Act (2018), and Germany's Supply Chain Due Diligence Act (2023) all impose obligations on companies to identify and address human rights risks in their supply chains, including mineral sourcing.

OECD Due Diligence and Industry Standards

The OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas is the internationally recognised standard for mineral supply chain due diligence. Developed through a multi-stakeholder process involving governments, industry, and civil society, the OECD Guidance provides a five-step framework that has become the reference standard for both mandatory regulations (EU Conflict Minerals Regulation, EU Battery Regulation) and voluntary industry programmes.

The Five-Step Framework

Step 1: Establish strong company management systems. Companies must adopt a supply chain policy consistent with the OECD Guidance, establish internal management structures for due diligence, and create systems for engagement with suppliers. Step 2: Identify and assess risks in the supply chain. Companies must map their supply chains to identify potential risks related to conflict, human rights, and governance. Step 3: Design and implement a strategy to respond to identified risks. This involves developing risk mitigation plans, engaging with suppliers to address identified issues, and — where necessary — suspending or disengaging from problematic supply chains. Step 4: Carry out independent third-party audit of supply chain due diligence. Upstream companies (miners, smelters, refiners) are expected to undergo audits; downstream companies may rely on audit reports from upstream suppliers. Step 5: Report on supply chain due diligence. Companies must publicly report their due diligence practices, findings, and actions taken.

Industry Audit Programmes

The Responsible Minerals Initiative (RMI) operates the Responsible Minerals Assurance Process (RMAP), which conducts independent audits of smelters and refiners against the OECD Guidance standards. RMAP-conformant smelters and refiners are listed on a public database, and downstream companies can use RMAP status as evidence that their supply chain due diligence obligations are being met. The RMAP covers tin, tantalum, tungsten, gold, and cobalt smelters/refiners.

The London Metal Exchange (LME) has implemented its own responsible sourcing framework, requiring brands listed on the LME to demonstrate conformance with the OECD Guidance or equivalent standards. Non-conformant brands risk delisting, which would effectively bar their metal from the world's primary metals trading platform.

Responsible Sourcing Programs and ITSCI

Multiple programmes operate in the DRC and surrounding countries to enable responsible mineral sourcing, providing the on-the-ground mechanisms through which conflict minerals regulations are implemented.

ITSCI — The Tin Supply Chain Initiative

ITSCI (ITRI Tin Supply Chain Initiative), managed by the International Tin Association, is the most widely used traceability system for 3TG minerals in the DRC and surrounding countries. ITSCI operates a mine-to-smelter tagging and documentation system that assigns unique identification numbers to bags of mineral ore at validated mine sites. These tags accompany the minerals through each stage of the supply chain — from mine to trading depot to export — creating a documented chain of custody that enables smelters and downstream buyers to trace the origin of their mineral purchases.

ITSCI covers approximately 2,500 mine sites in the DRC, Rwanda, Burundi, and Uganda, with field teams that conduct regular site visits, monitor for conflict financing and human rights abuses, and report incidents to a centralised database. The programme has been credited with improving transparency in the 3TG supply chain and enabling continued responsible sourcing from the DRC, as an alternative to the blanket avoidance approach that some companies adopted after Dodd-Frank.

However, ITSCI has also faced criticism. Investigative reports have identified instances of tag fraud, where minerals from unvalidated or conflict-affected sites are laundered through the ITSCI system using counterfeit or improperly assigned tags. The programme's reliance on local agents and the challenging operational environment in eastern DRC create vulnerabilities that determined bad actors can exploit. ITSCI has responded by strengthening its fraud detection capabilities and increasing the frequency of site inspections, but the challenge of maintaining integrity in a dispersed, conflict-affected supply chain remains significant.

Certified Trading Chains (CTC)

The German Federal Institute for Geosciences and Natural Resources (BGR) developed the Certified Trading Chains (CTC) system as a mine-to-export certification programme for 3TG minerals. CTC provides independent certification that mining operations meet defined standards for legality, working conditions, and absence of conflict financing. Several mines in Rwanda and the DRC have achieved CTC certification, though the programme's reach is smaller than ITSCI's.

Better Mining

The RMI's Better Mining programme operates at artisanal mine sites in the DRC, conducting real-time monitoring of working conditions, human rights practices, and environmental impacts. Better Mining uses trained field monitors who document conditions at participating sites and provide data to downstream companies for supply chain risk management. The programme has expanded to cover cobalt mining sites as well as 3TG sites, reflecting the broadening of supply chain due diligence requirements beyond the original conflict minerals scope.

The Responsible Cobalt Initiative

While cobalt is not a 3TG conflict mineral, the Responsible Cobalt Initiative (RCI), hosted by the Chinese Chamber of Commerce for Metals, Minerals and Chemicals Importers and Exporters (CCCMC), applies OECD-aligned due diligence standards to the cobalt supply chain. The RCI includes Chinese refiners as well as international companies and aims to improve practices across the cobalt supply chain.

Implications for Investors

Conflict minerals regulation and responsible sourcing requirements have significant implications for investors evaluating opportunities in the Lobito Corridor and the broader Central African mining sector.

Regulatory Compliance Costs

Companies operating in or sourcing from the DRC face material compliance costs. Establishing and maintaining supply chain due diligence programmes, conducting audits, filing regulatory reports, and participating in industry initiatives all require dedicated resources. For large mining companies and major downstream consumers, these costs are manageable as a proportion of revenue. For smaller companies, compliance can be a significant burden. Investors should assess whether portfolio companies have adequate compliance infrastructure and budget for the evolving regulatory landscape.

Reputational Risk

The reputational risk associated with conflict mineral or child labour allegations is substantial and can affect stock prices, customer relationships, and regulatory treatment. High-profile investigative reports — such as those published by Amnesty International, Global Witness, and major media outlets — have caused significant reputational damage to companies found to have inadequate supply chain oversight. Investors should evaluate the robustness of portfolio companies' responsible sourcing programmes and their capacity to withstand public scrutiny.

Corridor Advantage

The Lobito Corridor offers a potential advantage for conflict minerals compliance. The corridor connects mining operations in the DRC's southern Copperbelt — geographically distant from eastern DRC's conflict zones — to Atlantic export markets through a logistics route that provides transparency and traceability. The corridor's development includes provisions for monitoring and documentation systems that could enhance supply chain visibility. For investors, corridor-linked mining operations may present lower conflict mineral risk than operations in or near eastern DRC, though comprehensive due diligence remains essential regardless of geographic location.

ESG Integration

Conflict minerals and responsible sourcing have become core components of ESG (Environmental, Social, and Governance) analysis for mining and manufacturing companies. ESG-focused investors increasingly screen for conflict mineral compliance, and ESG ratings agencies incorporate responsible sourcing metrics into their assessments. Companies that demonstrate best-practice due diligence may benefit from lower cost of capital, broader investor access, and premium market positioning. Conversely, companies with weak due diligence face ESG downgrades that can restrict their access to capital markets.

The conflict minerals challenge in the DRC is not merely a compliance exercise. It is a fundamental test of whether the global economy can source essential materials from fragile and conflict-affected states while respecting human rights, supporting legitimate livelihoods, and denying revenue to armed groups. For investors in the Lobito Corridor and the broader African mining sector, navigating this challenge effectively is both a moral imperative and a commercial necessity.