BRUSSELS - Belgium's AfricaMuseum is the country's biggest dedicated to the Congo, displaying millions of colonial-era objects and zoological specimens.
But it also holds the archives from the 1960s and 70s of Belgian companies that ceased operations in the former colony, including geological maps.
Now, with a race for rare earths gathering pace across the globe, the institution is grappling with the question of whether it should share them with the mining sector.
The museum, which until 2018 was called the Royal Museum for Central Africa, has disclosed that it turned down a request from a US company suspected of wanting to monetise the data.
"We cannot allow a private company, which may have commercial interests, to get hold of an entire archive collection," AfricaMuseum director Bart Ouvry told AFP.
"That would be against our ethics as a scientific institution," he said on Thursday.
The request from the firm, KoBold Metals, was made about six months ago and involved access to a large quantity of data on the Congolese subsoil in order to digitise it, Ouvry explained.
Belgium is the former colonial power in Congo, which became independent in 1960 and is now called the Democratic Republic of Congo.
According to Ouvry, the museum's geological archive runs to "half a kilometre", and the institution intends to digitise and make it public in the next four to five years, as part of a partnership with the DRC, backed by funding from the European Union.
Private interests controlling the archive is not a matter solely for the museum or the Belgian state, because the DRC authorities are also involved.
"We want to share these archives first with our Congolese partner, which is the national geological service, because ultimately, the question of mining exploration and economic development is the responsibility of the Congolese government," said Ouvry.
This photograph shows boxes in the geological archives of the Royal Museum for Central Africa in Tervuren, near Brussels on February 12, 2026. (Credit: AFP)