The opening of the 8th World Water Forum was held on March 19, 2018, in Brazilia on the theme: "Sharing Water ". At the Forum, the delegation of Kazakhstan headed by the Ambassador of Kazakhstan in Brazil Kairat Sarzhanov was presented by the Director of the Executive Directorate of the International Fund for Saving the Aral Sea in the Republic of Kazakhstan Bolat Bekniyaz and the Director of the International Water Assessment Centre Serik Akhmetov.

The forum was opened by the President of the host country, Mishel Temer, and co-organizer of the event, the head of the World Water Council, Benedito Braga. Honorary speakers of the forum were Crown Prince of Japan Naruhito, the President of Hungary Janos Ader, the President of Guyana David Granger, South Korean Prime Minister Lee Nak-yeon, Prime Minister of Morocco Saad-Eddine El Othmani, the Minister of State of the Principality of Monaco Serge Telle, World Water Council Honorary President Loic Fauchon, Executive Director of the UN Environment Programme Erik Solheim, UNESCO Director-General Audrey Azoulay, Manager of IDB Infrastructure and Energy Sector José Agustín Aguerre, as well as ministers, parliamentarians, judges and prosecutors, representatives of international, regional and non-governmental organizations, academic and academic circles.

On the margins of the forum, Saad-Eddine El Othmani, Prime Minister of Morocco, presented the World Water Prize of His Majesty the King of Morocco Hassan II to the Secretary General of the Organization for Economic Cooperation and Development (OECD) Angel Gurria.

More than 280 events were held within the framework of the forum, including the ministerial conference, special sessions, meetings in the framework of political, thematic, regional processes and civil forum, high-level round tables, side events, debates. More than 80 local and foreign organizations in the field of water management opened their pavilions at the Forum’s Expo.

On the first day of the forum, the delegation of Kazakhstan spoke at a high-level roundtable on the theme "Climate", in which the leadership of the Ministry of the Environment of Brazil, high representatives of South Korea, Japan, Chile, Egypt, UAE, France, Monaco, Spain, Croatia, Slovakia, Malawi, Cuba, as well as the World Water Council and the Brazilian Forum on Climate Change.

The 8th World Water Forum, attended by more than 10,000 participants and 45,000 visitors, ended on March 23 with the adoption of the Ministerial Political Declaration. Other countries of Central Asia, such as Kyrgyzstan, Uzbekistan, Tajikistan and Turkmenistan participated in the event with delegations of both the ministerial and expert level.

The World Water Forum is considered the world's largest event in the water sector, held every three years. Brazil was selected in 2014 as host for the next international water event by the World Water Council during the 51st meeting of the Board of Directors of the organization in Korea. The mission of the forum is aimed at the achievement of four main goals: increasing the importance of the role of water issues on the political agenda, facilitating the deepening of discussions on solving international water problems in the 21st century, formulating concrete proposals and drawing universal attention to the importance of water issues and creating political commitments.