The Royal Institute for the Sustainable Management of Natural Resources and the Promotion of Clean Technology. (Dutch: Koninklijk Instituut voor het Duurzame Beheer van de Natuurlijke Rijkdommen en de Bevordering van Schone Technologie KINT; French: L’Institut royal pour la Gestion durable des Ressources naturelles et la Promotion des Technologies propres IRGT) is a Belgian non-profit organization, which was founded on 11 July 1994. Prince Laurent of Belgium is the head of the Institute.
The Institute wants to promote the sustainable management of natural resources as well as the development of environment-friendly technologies. It involves both the economic and social aspects of technology-development. The institute acts as a support organization for the regional governments of Belgium (Brussels, Flanders, and Wallonia).