This document contains the provisional list of participants attending the thirty-second sessions of the Subsidiary Body for Scientific and Technological Advice and the Subsidiary Body for Implementation, to be held from 31 May to 9 June 2010, and the tenth session of the Ad Hoc Working Group on Long-term Cooperative Action under the Convention and the twelfth session of the Ad Hoc Working Group on Further Commitments for Annex I Parties under the Kyoto Protocol, to be held from 1 to 11 June 2010, has been prepared on the basis of information received by the secretariat as at Thursday, 27 May 2010. The final list of participants will be issued on Friday, 11 June 2010, taking into account additional information received by the secretariat prior to that date and including any corrections submitted. Corrections should be given to Ms. Heidi Sandoval (Registration counter) by noon, at the latest, on Wednesday, 9 June 2010