Dirk Jan van den Berg (1953) has been Chair of the Supervisory Board at 乐鱼(Leyu)体育官网 since June 1, 2025. In addition to his current role as independent chair of the Association of Health Insurance Companies, he holds supervisory positions in various sectors. Previously, he served in the Dutch diplomatic and civil service, including as secretary-general of the Ministry of Foreign Affairs, permanent representative to the United Nations in New York, and ambassador to China. Dirk Jan was also Chair of the Executive Board at Delft University of Technology and CEO of Sanquin.