The disaster in Rubaya exposed the dark price of the global search for coltan
The collapse of a large coltan mine in Rubaya, in the east of the Democratic Republic of the Congo, turned at the end of January into one of the deadliest mining tragedies in the region’s recent history. According to information released after the accident by local officials and the rebel administration controlling the area, at least 200 people were killed, while the exact number of victims remained unclear for days because many bodies stayed buried in mud and collapsed shafts. Congolese authorities spoke of at least 200 dead, while different estimates and disputes over certain claims about the scale of the tragedy came from rebel circles, further showing how difficult it is to obtain precise data in an area that is simultaneously a war zone, a mining center, and a space of weak institutional control.
Rubaya is not just any mining location. It is one of the world’s most important areas for coltan extraction, the ore from which tantalum is obtained, a metal important for the production of capacitors and other components used in mobile phones, computers, automotive electronics, the aviation industry, and parts of military technology. That is why news of the mine collapse in eastern Congo resonated far beyond Africa: the tragedy immediately raised questions about labor safety, oversight of extraction, the role of armed groups, and the responsibility of international supply chains that depend on minerals from conflict-affected regions.
How the collapse happened
According to available reports, the collapse occurred on January 28, 2026, after heavy rains hit the Rubaya area in North Kivu province. Several media outlets, citing local sources, stated that a landslide struck several mining shafts and hand-dug tunnels. It was precisely this combination of heavy rainfall, unstable ground, and improvised mining infrastructure that created the conditions for the catastrophe. In such mines, which largely rely on artisanal or semi-formal mining, safety standards are often minimal or not enforced at all, and workers enter narrow and poorly supported tunnels without reliable machinery or protection.
Testimonies from survivors and local residents, later reported by international media, indicate that a large number of people were in the shafts and around them at the moment the ground moved. Not only miners work in Rubaya. Around the mine there are also middlemen, porters, small traders, people who wash and sort ore, and an entire local economy tied to the daily trade in coltan. That is why, in the first hours after the accident, it was impossible to determine with certainty exactly how many people had been caught in the landslide. Some of the injured were transferred to local health facilities, while the most serious cases were supposed to be transported to Goma, the largest nearby city.
In the days after the accident, mining in the affected area was temporarily suspended, and residents who had set up temporary shelters next to the mine were ordered to move. However, this is only a short-term measure in a place where the danger of new landslides is constant, and the livelihood of thousands of people is directly tied to the continuation of work. It is precisely this dependence of the local population on the mine that explains why, even after major tragedies, many survivors return to the same shafts: for a great number of families, the choice between safety and income does not really exist.
Why the death toll is disputed
In crisis situations in eastern Congo, casualty figures often become the subject of political and propaganda competition. Rubaya is under the control of the M23 rebel movement, and the area has long been the epicenter of conflict, ore smuggling, and rivalry between state authorities, local militias, and regional actors. Because of this, official information does not come from a single, credible, and independent source, but from several mutually opposed centers of power.
The Congolese government warned that this was massive loss of life with at least 200 dead, while representatives of the rebels and structures close to them presented their own figures and interpretations. Such disagreement is not unusual in a region where access to the field is limited, communications infrastructure is weak, and a large number of mines operate outside the formal registration system. Establishing the number of victims is made even harder by the fact that many workers are unregistered, that some families do not have quick access to authorities or hospitals, and that the search for those buried proceeds slowly because of a lack of equipment and poor field conditions.
That, however, does not change the essence of the event: even the lowest confirmed estimates speak of a catastrophe of enormous proportions. In the context of eastern Congo, where mining accidents have for years been part of the broader picture of poverty and armed violence, Rubaya has become a symbol of the ultimate price local communities pay for mineral wealth from which others often draw the greatest benefit.
Rubaya as a strategic point of world industry
Rubaya’s significance goes beyond the borders of the Democratic Republic of the Congo. Several international sources and analyses describe the area as one of the world’s key coltan deposits. According to data often cited in reports on eastern Congo, a significant share of the raw material comes precisely from the Rubaya basin and later, after processing and trade through a complex chain of intermediaries, ends up in global technological production. Reuters stated in its report after the accident an estimate that Rubaya provides about 15 percent of the world’s coltan, showing why control over this area matters not only to local actors but also to international markets.
Coltan itself is not a finished industrial product. Its importance stems from tantalum, a metal that is sought after because it withstands high temperatures well and has specific electrical properties. The U.S. Geological Survey states that tantalum capacitors are used in mobile phones, personal computers, and automotive electronics, and tantalum is also used in superalloys for jet engines and in other highly specialized industries. In its materials on critical raw materials, the European Commission warns that secure supply of such materials is a strategic issue for the digital transition, the defense industry, and technological competitiveness.
That is precisely why the tragedy in Rubaya is not merely a local news story about a mining landslide. It strikes at the very heart of the debate about where the key raw materials for modern electronics come from, under what conditions they are extracted, and who bears responsibility when coercion, smuggling, child labor, or fatally unsafe mining appear in the supply chain.
The mine under M23 control and the wider security crisis
Rubaya is located in a zone controlled by M23, a rebel group that has regained strength and expanded its influence in the east of the country in recent years. In February 2025, the United Nations Security Council strongly condemned M23 offensives in North and South Kivu and called for an end to hostilities and withdrawal from occupied areas. At the same time, numerous international reports pointed out that control over mining areas is not only a military issue but also a financial one, because access to ores enables the financing of further operations, the strengthening of local authority, and trade links across the border.
After the accident, Associated Press recalled that M23 took control of Rubaya in 2024 and that rebel structures there imposed taxes and fees linked to the coltan trade. In August 2025, the U.S. State Department, while announcing sanctions against actors linked to illegal mining and trade in conflict minerals, identified Rubaya as a major mining area rich in critical minerals. Such assessments show that ore extraction in eastern Congo is not an isolated economic sector, but an integral part of a war economy in which local interests, regional security, and international demand are intertwined.
Congolese authorities and many external observers have for years accused Rwanda of supporting M23 and of benefiting from the illegal flow of minerals from eastern Congo, while Kigali rejects such accusations or interprets them differently. In such an environment, the accident in Rubaya itself also gains additional political weight: any discussion of responsibility for working conditions inevitably opens the question of who actually governs the territory, who collects revenue from the ore, and why there is no systematic protection for workers there.
Work without protection and an economy without an alternative
One of the most heartbreaking aspects of the Rubaya story is the fact that dangerous working conditions have long been known. International media and humanitarian organizations have for years described eastern Congo as a place where a large number of people survive thanks to artisanal mining, even though it is work marked by extreme risk, low income, and an almost complete absence of social protection. In such circumstances, the mine is not only a workplace but also the last safety net for communities that have no industry, no stable agriculture, no access to public services, and no peace that would allow more long-term development.
Reports after the accident describe the tunnels in Rubaya as overcrowded, poorly built, and insufficiently secured. Former miners and local witnesses had warned that mass collapses there were a matter of time, not an exception. The problem is not only one rainy episode, but the entire model of extraction in which a strategically valuable mineral is taken from the ground, while the cost of risk and death is practically transferred to the poorest workers.
This imbalance is especially evident in the fact that, despite the global importance of coltan, the local population often fails to escape poverty. In May 2025, Associated Press reported that miners in Rubaya work in very difficult conditions and for modest incomes, even though their ore is built into products with high added value. Thus, the tragedy in Rubaya becomes a much broader story about unequal distribution of benefits: technological centers receive the raw material without which they cannot function, while mining communities remain exposed to accidents, conflict, and chronic misery.
Supply chain responsibility and the limits of international rules
At the international level, there have for years been attempts to place trade in so-called conflict minerals under stricter supervision. The OECD developed due diligence guidance for responsible supply chains of minerals from conflict-affected and high-risk areas, precisely so that companies can check whether their procurement decisions are financing violence, forced labor, or other serious rights violations. The European Union and other jurisdictions also have rules obliging some importers to carry out additional checks on the origin of tin, tantalum, tungsten, and gold.
But practice shows how difficult such standards are to implement when the terrain is under the control of armed groups, and smuggling and trade channels have long since adapted to circumventing oversight. Trade in ores from eastern Congo passes through multiple intermediaries, warehouses, transport routes, and border points, so the source of the ore is often obscured before the material reaches processors and component manufacturers. Because of this, tragedies like the one in Rubaya do not remain merely local safety incidents, but become a test of the credibility of international promises about ethical sourcing and “clean” supply chains.
Warnings about abuses in mining communities in the Democratic Republic of the Congo do not concern labor safety alone. UNICEF previously cooperated on programs aimed at reducing violations of children’s rights in artisanal mining in Congo, showing how deep and structural the social risks in these environments are. It is not possible to speak of responsible tantalum sourcing while ignoring the fact that behind the ore there are often communities without schools, healthcare, formal employment, and minimal protection.
The humanitarian background of the tragedy
The catastrophe in Rubaya occurred at a time when eastern Congo was already in a deep humanitarian crisis. Throughout 2025 and at the beginning of 2026, UN and humanitarian agencies warned of millions of displaced people, an escalation of conflict in the provinces of North Kivu, South Kivu, and Ituri, and a chronic lack of funds to assist civilians. At the beginning of 2026, OCHA announced that enormous funds were needed to respond to humanitarian needs in the country, while other international estimates spoke of more than seven million internally displaced persons across the Democratic Republic of the Congo.
In such a context, a mining accident is not an isolated event, but another blow to a population already living on the edge of endurance. Families that lost members in Rubaya are often themselves part of a population that had previously been displaced, impoverished, or exposed to armed violence. The loss of a breadwinner in such circumstances means not only a private tragedy but also the further sinking of entire households into debt, insecurity, and dependence on occasional humanitarian survival.
That is why the issue of Rubaya cannot be reduced to a crime report. It is connected with the way the international community views eastern Congo: as an area of great mineral potential, but also as a space where civilian security, state functionality, and oversight of resources remain deeply undermined. As long as these three problems are addressed separately, catastrophes will continue to recur.
What Rubaya tells the world
The collapse of the coltan mine in Rubaya was a reminder that behind the everyday use of smartphones, computers, and other electronics there are often production chains that begin in very violent and unsafe conditions. Not every ton of tantalum from Central Africa is automatically linked to conflict or abuse, but the Rubaya case shows how thin the line is on the ground between legal trade, war economy, and desperate survival. When rebel control, a weak state, immense mineral wealth, and the poverty of the population come together in one place, tragedy ceases to be a surprise and becomes an almost built-in risk of the system.
For the people of Rubaya, this is first and foremost a story of the dead, the missing, and families waiting for the bodies of their loved ones to be pulled from the mud. For the authorities in Kinshasa and for international organizations, it is a reminder that the question of eastern Congo cannot be resolved only militarily or only humanitarily. And for global industry, it is a warning that responsibility for critical raw materials does not end at the factory gate or with a supplier’s certificate, but begins where a worker descends into an unstable shaft from which he may never emerge again.
Sources:- Associated Press – first report on the collapse of several mining shafts in Rubaya and the figure of at least 200 dead (link)- Associated Press – context on the causes of the accident, working conditions, and the political-security background of the Rubaya area (link)- Associated Press – feature report on victims’ families, survivors returning to the mine, and the community’s social dependence on coltan (link)- Reuters / summary of the available report – estimate that Rubaya provides about 15 percent of the world’s coltan and the basic facts of the accident (link)- U.S. Geological Survey – official overview of the use of tantalum in electronics, the automotive industry, and the aviation industry (link)- European Commission / RMIS – explanation of the importance of critical raw materials for the digital transition, defense, and EU industry (link)- OECD – guidance for responsible mineral supply chains from conflict-affected and high-risk areas (link)- United Nations Security Council – Resolution 2773 (2025) on M23 offensives in eastern Congo (link)- U.S. Department of State – sanctions on actors linked to illegal mining and trade in conflict minerals in Rubaya (link)- OCHA – overview of humanitarian needs and the funding appeal for the Democratic Republic of the Congo in 2026 (link)
Find accommodation nearby
Creation time: 14 hours ago