Reporting to Foreign Ministers, a Senior Officials' Meeting (SOM) has normally been held twice a year, once on the eve of Ministerial or Summit meetings and once separately. No Chairman's Statement is issued publicly after these meetings, although the Chairman does write to participants summarising the main conclusions of the meeting.

Senior Officials' Meetings have been held in

• Dublin (20 December 1996)
• Luxembourg (30-31 October 1997)
• London (19-20 February 1998)
• Bangkok (27-28 October 1998)
• Rovaniemi (2-4 November 1999)
  
• Lisbon (2-3 May 2000)
• Seoul (19-20 September 2000)
• Sweden (25-27 April 2001)
• Lanzarote (4-5 April 2002)
• Hanoi (6-7 October 2004)
• Jakarta (1-12 March 2005)
• Kyoto (5 May 2005)
• London (29-30 November 2005)
• Vienna (8 March 2006)
• Guilin City (29-30 October 2007)
• Ljubljana (2-3 March 2008)
• Beijing (29-30 June 2008)
• Hanoi (19-20 January 2009)
• Prague (2-3 February 2009)
• Madrid (24 January 2010)
• Phnom Penh (5-6 May 2010)
  
• Brussels (13-15 July 2010)
• Brussels (3 October 2010)
• Copenhagen (27-28 January 2011)
• Tokyo (28-29 March 2011)  -  CANCELLED
• Budapest/Godollo  (18-19 April 2011)
• Budapest (5 June 2011)
  

A Coordinators' Meeting, bringing together the four coordinating partners (currently Laos, Japan, plus the EU Presidency (Poland) and the European Commission is held as and when necessary.