Complex sentence: In July, 2009, he was appointed chairman of a newly independent board of the group's subsidiary Citibank and also led the board's risk management and finance committee and was a member of its nomination and governance committee.
Split into simpler sentences: In July, 2009, he was appointed Chairman of a newly independent board of the group's subsidiary Citibank. He also led the board's risk management and finance committee and was a member of its nomination and governance committee.