The Democratic Republic of the Congo has added the rebel-held Rubaya coltan mine—one of the world’s richest sources of tantalum—to a shortlist of strategic assets proposed to the United States under a new minerals cooperation framework, according to a government document seen by Reuters.
A senior Congolese official and a U.S. diplomat confirmed that Rubaya was included on the list presented during a DRC–U.S. meeting held in Washington on February 5.
The meeting aimed to advance a strategic minerals partnership agreed upon by the two countries in December. Both officials spoke on condition of anonymity due to the sensitivity of the discussions.
Rubaya, located in eastern Congo, is a major coltan-producing site and a critical source of tantalum—a metal widely used in electronics, aerospace, and defense industries. Control of the mine in Rubaya is controlled by M23 rebels.
The inclusion of Rubaya in the proposed cooperation framework indicates Kinshasa’s intent to formalize and potentially secure international backing for key mining assets, even those located in volatile areas.
It also reflects Washington’s growing interest in diversifying critical mineral supply chains amid rising global competition, particularly in Africa’s resource sector.
Details of how the partnership would address security concerns surrounding the mine or ensure stable production remain unclear. However, the move underscores the strategic importance of Congo’s vast mineral wealth in shaping global supply chains and geopolitical alliances.
