CAWST (Centre for Affordable Water and Sanitation Technology) International partners / By http://www.cawst.org/
BGR – Bundesanstalt für Geowissenschaften und Rohstoffe (Federal Institute for Geosciences and Natural Resources) International partners / By http://www.bgr.bund.de/EN
AECID (Centro de Formación de la Cooperación Española) International partners / By http://www.aecidcf.org.co