Paul Bui Chu Tao

The Apostolic Vicar of Phát Diệm, Jean-Baptiste Tong Nguyên Ba, consecrated him to the priesthood on 13 March 1937. Pius XII. Appointed him on 30 November 1956 as Apostolic Administrator of Phát Diệm.

John XXIII. Appointed him Apostolic Vicar of Phát Diệm and Titular Bishop of Numida on 24 January 1959. The Apostolic Vicar of Hanoi, Joseph Marie Trịnh Như Khuê, consecrated him to the bishophood on 26 April of that year.

In electoral terms, he chose In caritate non ficta. The Pope raised the apostolic vicariate to the bishopric on 24 November 1960 and thus he was appointed bishop of Phát Diệm. On 3 November 1998, John Paul II rescinded his age-related resignation.