Hans Buysse was ABAF/BVFA chairman for 9 years. He was 6 years vice-chairman and represents the association internationally. He has been re-elected chairman in 2019. He is EFFAS Executive Management Committee member, vice-chairman of XBRL Europe and ACIIA Council member. He has been member of the Consultative Working Group (CWG) of the Corporate Reporting Standard Committee (CRSC) of ESMA and vice-chairman of EFRAG. Hans is managing partner at Clairfield International and adjunct professor at Vlerick Business School.