Career
He was Chief Minister of Sabah from 1996 to 1998. Currently he is President of the Sabah Progressive Party (SAPP). Yong became the Chief Minister of Sabah on 28 May 1996 to serve in a two-year rotation arranged by the Barisan Nasional coalition in the state.
He had previously served as Deputy Chief Minister.
Lee led the SAPP in bolting from Barisan Nasional in 2008. Before entering politics, Yong was a lawyer, having studied in London.