"The board of directors (the “Board”) of AIA Group Limited (the “Company”) announces that, Mr. Rafael Si-Yan Hui has tendered his resignation as independent non-executive director of the Company with effect from 29 March 2012 in order to attend to other commitments".
And what are those "other commitments"?
They are revealed here:
"Hong Kong's richest property tycoons, Thomas and Raymond Kwok who jointly head Sun Hung Kai, and former Chief Secretary Rafael Hui have been arrested by the ICAC for suspected corruption."
Thanks to David Webb's website for the tip.
By the way, Rafael Hui has been released today, but the announcement of the AIA group could have been "a tiny bit" more clear about the reasons of his resignation.