Mié, 10/03/2004 / Sáb, 13/03/2004

China Foreign Trade Guangzhou Exhibition Corp.

Jue, 29/01/2004 / Vie, 30/01/2004

National Council for Science and the Environment

Mié, 28/01/2004 / Jue, 29/01/2004

Australian Water Association

Dom, 30/05/2004 / Jue, 03/06/2004

Water Efficiency and Public Information for Action (WEPIA)

Lun, 31/05/2004 / Jue, 03/06/2004

Universidad Politécnica de Cartagena; Instituto Geológico y Minero

Jue, 20/05/2004 / Dom, 20/06/2004

Ministry of Water and Irrigation in Jordan

Sáb, 21/05/2005 / Dom, 22/05/2005

Consejo General de Val de Marne (Francia)

Jue, 16/03/2006 / Mié, 22/03/2006

Consejo Mundial del Agua (CMA) - World Water Council (WWF); National Water Commission, Mexico

Dom, 18/03/2007 / Mié, 21/03/2007

American Water Works Association (AWWA)