As a result , the Catholic Church has many Mandarin - speaking mainland immigrants .
The end of World War II and the following years saw a mass migration of religious communities from mainland China as Communist persecution began to take effect following the Chinese Communist Revolution in 1949 .
The Catholic Church has many Mandarin - speaking mainland immigrants .
The end of World War II and the following years saw a mass migration of religious communities from mainland China as Communist persecution began to take effect following the Chinese Communist Revolution in 1949 .