The Secretariat of IMO consists of the Secretary-General and some 300 international personnel based at the headquarters of the Organization in London.
The Secretary-General of the Organization is Mr. Kitack Lim (Republic of Korea) who was appointed to the position with effect from 1 January 2016, for an initial four-year term.
The holders of the office have been:
Ove Nielsen (Denmark)1959-1961
William Graham (United Kingdom, Acting)1961-1963
Jean Roullier (France)1964-1967
Colin Goad (United Kingdom) 1968-1973
Chandrika Prasad Srivastava (India)1974-1989
William A. O’Neil (Canada)1990-2003
Efthimios E. Mitropoulos (Greece)2004-2011
Koji Sekimizu (Japan)2012-2015
Kitack Lim (Republic of Korea)2016-
Avaialable at :
http://www.imo.org/en/about/conventions/listofconventions/pages/international-convention-for-the-safety-of-life-at-sea-(solas),-1974.aspx, accessed on 03/04/2017