Directors and former directors of Directorate of Water Resources, leaders of agencies and units under Directorate of Water Resources; former directors of Department of Water Resources, Department of dyke management and flood prevention and nearly 150 retired officers who worked at Directorate of Water Resources and its precursor units participated in the meeting. Speaking at the meeting, Mr. Hoang Van Thang, Deputy Minister of Agriculture and Rural Development - The General Director of Directorate of Water Resources highly appreciated historical roles of the predecessors as well as precious dedication of scientists, managers who have been contributed to the sustainable development of the irrigation sector today.