Rubaya Coltan Nexus: M23 Resource Extraction and the Rwandan Supply Chain

Rubaya, a mining town in Masisi Territory roughly 60–70 km northwest of Goma, sits atop one of the world's richest coltan (columbite-tantalite) deposits, accounting for an estimated 15–30% of global tantalum supply. M23 tightened its grip on the transport routes around Rubaya in late 2023 and seized the mines themselves on 30 April 2024, with Rwandan military support the UN says was decisive to the operation.
View PDF
Rubaya, Masisi Territory, North Kivu, DRC
["1\u00b032'46.5\"S, 28\u00b052'24.7\"E"]
Mine Collapse
30 April 2024 - Present
March 23 Movement (M23) / Alliance Fleuve Congo (AFC), with Rwandan Defence Force (RDF) military, logistical, and financial support per United Nations Group of Experts reporting
Artisanal miners, including children as young as 10; Congolese civilians subject to M23 taxation and reported forced-labour condition
Hundreds
600+
more research
Browse Khthon's full catalogue of country and case reports across seven global regions, or get involved with our ongoing investigations.