May. 22, 2008

Assigned AAA to bonds of Electric Power Development

Apr. 24, 2008

Affirmed AAA/Stable and AAA on sr.debts and bonds of Electric Power Development Company

Apr. 16, 2008

Assigned AAA to bonds of Electric Power Development Company

Nov. 12, 2007

Assigned AAA to bonds of Electric Power Development Company

Sep. 12, 2007

Assigned AAA to bonds of Electric Power Development Company

Aug. 08, 2007

Assigned AAA to bonds of Electric Power Development Company

Jul. 04, 2007

Assigned preliminary AAA to shelf of Electric Power Development Company

Jun. 25, 2007

Withdrawn preliminary AAA rating on shelf of Electric Power Development