A museum devoted to Belgium’s colonial history in Africa has found itself involved in a dispute over access to documents pertaining to rich mineral deposits in what is now the Democratic Republic of Congo, formerly colonized by the European country.

The Congolese government and KoBold Metals, a mining and artificial intelligence company backed by billionaires including Jeff Bezos and Bill Gates, are seeking access to documents, including geological records, which are housed at the Africa Museum In Tervuren, Belgium the Financial Times reports; the company inked a deal last year with the Congolese government to digitize the records. The institution was formerly known as the Royal Museum for Central Africa.