International Hydrographic Organization
The IHO was established in 1921 as the International Hydrographic Bureau (IHB). The present name was adopted in 1970 as part of a new international Convention on the IHO adopted by the then member nations. The former name International Hydrographic Bureau was retained to describe the IHO secretariat until 8 November 2016, when a revision to the Convention on the IHO entered into force. Thereafter the IHB became known as the "IHO Secretariat", comprising an elected Secretary-General and two supporting Directors, together with a small staff of 17, at the Organization's headquarters in Monaco.
International Hydropower Association
IHA organises the biennial World Hydropower Congress, regarded as the key reference for decision-makers and thought leaders in the hydropower sector. The first congress was held in Antalya, Turkey in 2007. The event has since been held in Reykjavík, Iceland on 23–26 June 2009, Iguassu, Brazil on 14–17 June 2011, Kuching, Sarawak, Malaysia on 21–24 May 2013 and Beijing, China on 19–21 May 2015.