Complex sentence: He led the CPN (UML) as General Secretary from 2008 to February 2009 and was elected as the Chairman of the CPN (UML) on February 16,2009.
Split into simpler sentences: He led the CPN (UML) as General Secretary from 2008 to February 2009. He was elected as the Chairman of the CPN (UML) on February 16,2009.