Copper is not formally classified as a conflict mineral. The international legal frameworks that govern conflict minerals, including the U.S. Dodd-Frank Act (Section 1502) and the EU Conflict Minerals Regulation, cover only four materials: tin, tantalum, tungsten, and gold, commonly called 3TG. The OECD’s due diligence guidance, which underpins both laws, also deals specifically with these four. Copper sits outside that legal category, but the reality on the ground is more complicated.
Why Copper Isn’t Legally a Conflict Mineral
The conflict minerals designation traces back to the role that tin, tantalum, tungsten, and gold played in financing armed groups in the Democratic Republic of Congo (DRC) and surrounding countries. Both U.S. and EU regulations require companies to trace the origins of these four minerals and report whether their supply chains fund armed conflict or rely on forced labor. Copper has never been added to either list, which means companies face no legal obligation to audit their copper supply chains for conflict financing.
That said, the designation was always narrow by design. It targeted specific minerals with well-documented links to militia funding in a specific region at a specific time. The absence of copper from the list doesn’t mean copper extraction is free from violence, exploitation, or ties to armed groups. It means regulators haven’t applied the same mandatory framework to it.
Copper’s Ties to Armed Conflict in the DRC
The DRC is one of the world’s largest copper producers, and its mining sector operates in a context shaped by decades of armed conflict. Chinese companies dominate copper and cobalt extraction, processing, and export in the country. While the minerals most directly linked to militia revenue in eastern Congo are coltan, cassiterite (tin ore), and gold, the broader conflict is driven by control of mineral-rich territory, and copper is part of that mineral wealth.
Armed groups like M23 generate revenue by taxing and controlling production in mining areas. Some reports estimate that M23 collects at least $800,000 per month from a single area, Rubaya, through levies on mineral production. The financial resources from resource exploitation sustain military operations and recruitment. Copper itself isn’t the primary revenue source for these groups in eastern Congo, but the geopolitical competition over the DRC’s mineral belt, where copper and cobalt reserves are enormous, fuels the conditions that make conflict profitable.
Myanmar: Copper Directly Funding a Military Regime
One of the clearest examples of copper financing state-level violence comes from Myanmar. The U.S. Treasury Department sanctioned Wanbao Mining and its two subsidiaries, Myanmar Wanbao Mining Copper and Myanmar Yang Tse Copper, for providing support to Myanmar’s military junta through revenue-sharing arrangements. These copper mining companies shared profits with Myanma Economic Holdings Limited, a military-linked conglomerate that the Treasury designated under an executive order blocking property connected to the situation in Myanmar.
As a result, all property and transactions involving these entities within the United States are blocked. This is a direct case of copper mining revenues flowing to an authoritarian military government, yet because copper falls outside the 3TG framework, it doesn’t trigger the same supply chain reporting requirements that apply to gold or tantalum from the same types of regimes.
Social Conflict Around Copper Mining
Even outside war zones, copper extraction generates significant conflict. Peru, the world’s second-largest copper producer, has seen persistent social unrest tied to mining. Research on artisanal and small-scale copper mining in Peru documents how state policies have pushed small miners into informality, making them vulnerable to violence, theft, and extortion by criminal organizations. Elite capture through opaque financing systems and shadow ownership structures compounds the problem.
In Chile, the world’s largest copper producer, mining has intensified water conflicts in the Atacama Desert. Chile is the most water-stressed country in the Americas, and copper mining’s heavy water demands pit mining operations against local communities and agriculture. These socio-environmental conflicts have grown more visible over recent decades and are intensifying as climate change worsens drought conditions. The conflicts aren’t armed in the traditional sense, but they involve displacement, loss of livelihoods, and sometimes violent confrontations between communities and security forces.
Why Copper’s Conflict Risk Is Growing
Global copper demand is set to surge dramatically because of the energy transition. The International Energy Agency projects that annual copper demand for electricity grids alone will grow from 5 million tonnes in 2020 to nearly 10 million tonnes by 2040 under a sustainable development scenario. Copper demand from solar panels is expected to nearly triple. Wind energy will require 600,000 tonnes of copper per year by 2040, driven heavily by offshore wind projects that need extensive cabling. Electric vehicles push demand even higher, with copper needs from new EV sales projected to grow 28 times compared to 2020 levels.
This escalating demand puts pressure on every source of supply, including mines in conflict-affected regions. Currently, only about 38% of old copper scrap is recovered globally for recycling, up from 25% in the 1990s and 2000s but still far short of what would be needed to ease pressure on primary mining. To close the projected gap between supply and demand, that recovery rate would need to reach 62%. Until recycling scales up significantly, new mining in politically unstable or environmentally sensitive regions will remain central to the global copper supply.
Voluntary Standards Fill the Regulatory Gap
Because copper lacks the mandatory conflict reporting requirements that apply to 3TG minerals, the industry has developed voluntary frameworks. The Copper Mark is the primary certification program, evaluating mines against 33 criteria covering environmental, social, and governance practices. Successful completion results in certification that a site meets responsible production standards. The program also extends to molybdenum, nickel, and zinc.
The EU’s Critical Raw Materials Act takes a broader approach to supply chain resilience, creating monitoring systems, stress-testing requirements, and environmental footprint rules for critical materials. While this isn’t a conflict minerals regulation, it pushes companies toward greater transparency about where their raw materials come from and under what conditions they’re produced. These voluntary and semi-regulatory frameworks represent progress, but they lack the enforcement teeth of the Dodd-Frank or EU conflict minerals rules. Companies can choose not to participate, and many smaller operations in high-risk regions operate entirely outside these systems.
The Bottom Line on Copper and Conflict
Copper occupies an uncomfortable middle ground. It is not a conflict mineral under any existing law, but it directly finances military operations in Myanmar, is extracted in conflict zones in the DRC, and triggers social and environmental conflict from Peru to Chile. The legal designation matters because it determines whether companies must trace and report on their supply chains, and right now, they don’t have to for copper. As demand accelerates through the energy transition, the gap between copper’s legal status and its real-world conflict footprint is only likely to widen.