Complex sentence: He was the acting chairman of DAB from 9 August to 29 August 2007, after the passing of Ma Lik he was voted to be the DAB's Chairman.
Split into simpler sentences: He was the acting chairman of DAB from 9 August to 29 August 2007. After the passing of Ma Lik on 29 August, Tam was voted to be the DAB's Chairman.