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M I C R O S O F T C E R T I F I C A T E O F E X C E L L E N C E

Steven A. BallmerChief Executive Offi cer

TZE AUN TAN

Has successfully completed the requirements to be recognized as aMicrosoft® Certified Systems Administrator on Microsoft WindowsServer 2003

Certification Number: D253-1212

Achievement Date: May 09, 2011