Cobalt is not officially classified as a conflict mineral under U.S. law. The legal definition, established by the Dodd-Frank Act in 2010, covers only four minerals: tantalum, tin, gold, and tungsten (often called 3TG). However, cobalt shares many of the same problems that earned those four their designation, and growing international regulation is closing the gap between cobalt’s legal status and its on-the-ground reality.
What “Conflict Mineral” Legally Means
The term “conflict mineral” has a specific legal definition in the United States. Section 1502 of the Dodd-Frank Act requires any company that files reports with the SEC to disclose whether tantalum, tin, gold, or tungsten in its products originated in the Democratic Republic of the Congo (DRC) or neighboring countries. The rule applies when those minerals are “necessary to the functionality or production” of a product the company manufactures.
Cobalt was not included in this list when the law was written, largely because the explosive growth in cobalt demand, driven by lithium-ion batteries for phones and electric vehicles, came after the legislation was drafted. The law has not been updated since.
Why Cobalt Raises the Same Concerns
The DRC is the world’s dominant source of mined cobalt, accounting for 74% of global production as of 2023 data from the U.S. Geological Survey. Indonesia, the next largest producer, supplies just 7%. That concentration of supply in a single conflict-affected region is precisely the dynamic that makes a mineral problematic.
Mining in the DRC is linked to serious human rights abuses. The U.S. Department of Labor estimates that at least 25,000 children work in Congolese cobalt mines. Testimony before the Congressional-Executive Commission on China described miners exposed to unsafe worksites and reliance on both child and forced labor throughout the cobalt supply chain. These are the same categories of harm, armed conflict, forced labor, and child exploitation, that prompted the conflict minerals framework in the first place.
Artisanal Mining and the Risk It Creates
Cobalt in the DRC comes from two very different types of operations. Large industrial mines are run by major corporations with some degree of oversight and safety infrastructure. Artisanal and small-scale mines are informal operations where individuals and small crews dig by hand, often without protective equipment, structural supports, or ventilation.
Artisanal mining’s share of DRC cobalt output has actually declined over the past two decades. According to the U.S. Geological Survey, artisanal production accounted for 40 to 53% of DRC cobalt output around its peak in 2008, but dropped to roughly 9 to 11% by 2020. Globally, that translates to about 6 to 8% of world cobalt mine production. The decline reflects the expansion of large industrial operations, not necessarily an improvement in conditions at artisanal sites. The smaller share still represents a significant volume of cobalt entering global supply chains with minimal traceability.
How International Rules Are Catching Up
While U.S. law hasn’t added cobalt to its conflict minerals list, other regulatory frameworks are treating it as a mineral that demands the same scrutiny. The EU Battery Regulation requires supply chain due diligence for rechargeable industrial batteries and electric vehicle batteries placed on the European market. The regulation’s list of covered raw materials includes cobalt, along with natural graphite, lithium, and nickel. Companies must trace their supply chains, assess human rights and environmental risks, and act on what they find.
The OECD’s Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas also applies to cobalt, even though it was originally developed with the 3TG minerals in mind. The OECD framework is notable for encouraging companies to source responsibly from conflict-affected areas rather than simply avoiding them, recognizing that pulling out of a region entirely can deepen poverty without solving the underlying problems.
How Industry Tracks Cobalt Today
The Responsible Minerals Initiative, which created the widely used Conflict Minerals Reporting Template for 3TG minerals, now includes cobalt in its reporting system alongside gold, mica, tantalum, tin, and tungsten. Companies use these templates to trace minerals back through their supply chains to specific smelters and refiners, which can then undergo third-party audits.
This matters because it means cobalt is already being tracked using the same infrastructure and methodology as the four official conflict minerals. For companies that take supply chain transparency seriously, the absence of cobalt from the Dodd-Frank list is increasingly a technicality rather than a meaningful distinction. The reporting tools exist, the audit processes exist, and major buyers are expected to use them.
The Practical Answer
If you’re researching this for compliance, sourcing, or investment purposes, the short version is: cobalt is not a conflict mineral under U.S. securities law, but it is treated as one under EU regulation and international sourcing standards. Companies selling batteries or electronics into the European market already face mandatory due diligence obligations for cobalt. Companies operating only under U.S. rules have no legal obligation to report on cobalt sourcing, though many do voluntarily because the reputational and ethical risks mirror those of the 3TG minerals exactly.
The gap between cobalt’s legal status in the U.S. and its real-world risk profile is well understood by regulators, industry groups, and human rights organizations. Whether U.S. law eventually catches up is an open question, but the practical effect of EU regulation and industry self-governance means cobalt supply chains face increasing scrutiny regardless.