In 2001, Malongo staged an exhibition of more than 800 coffee grinders in Marseilles, at the House of Arts and Crafts.

In 2003, Malongo contributed items to an exhibition on coffee and more especially its role as a sociability factor, at the Château de Maison (Maisons Laffitte). The same year, several objects were put on display at the Adrien Dubouché museum in Limoges.

Today, Malongo is working on an exhibition project with MUCEM (European and Mediterranean Civilisations Museum) which is due to open in Marseilles in 2011.