Book Closing Date as of March 16, 2012
Name* Number of Shares % of Total Number of Shares
   Electricity Generating Authority of Thailand 133,773,662 25.41
   TEPDIA Generating B.V. 126,054,178 23.94
   Thai NVDR Company Limited 54,936,336 10.43
   Littledown Nominees Limited 34,221,628 6.50
   Bangkok Life Assurance Company Limited 10,206,200 1.94
   HSBC (SINGAPORE) NOMINEES PTE LTD 7,388,450 1.40
   Social Security Office (Two-Types) 6,387,300 1.21
   State Street Bank Europe Limited 6,074,641 1.15
   Norturst Nominees Limited-NTO Sec Lending Thaiiland 5,932,100 1.13
   Thanachart Life Assurance Company Limited 5,918,000 1.12