On March 31, 2008, Standard&Poor's Ratings Services lowered its corporate credit rating on SP PowerAssets Ltd. (SPPA), the 100% owned subsidiary of Singapore Power Ltd. (SingPower), to 'AA-' from 'AA'. The outlook is negative. At the same time, Standard&Poor's lowered its senior unsecured issue ratings on SPPA to 'AA-' from 'AA'. The ratings on SPPA were removed from CreditWatch with negative implications, where they were initially placed on March 30, 2007, after SingPower (AA-/Negative/--) and consortium partner Babcock&Brown Ltd. (not rated) announced their successful bid to acquire the whole of the issued share capital of Alinta Ltd. The ratings had remained on CreditWatch with negative implications, after the December 2007 decision by SingPower's subsidiary,