Read more @Malaysia | Malay Mail Online…Former BSI SA banker Yeo Jiawei will appeal his conviction and sentence in a Singapore probe linked to 1MDB. — TODAY file pic SINGAPORE, Jan 4 ― Yeo Jiawei, a former BSI SA banker found guilty of attempting to tamper with witnesses in a Singapore probe linked to 1Malaysia Development Bhd (1MDB), will appeal his conviction and sentence, according to his lawyer.