Treaty of Nanking
With the formation of the BFM, missionaries were sent to Singapore to establish a mission as China was not open for foreign residence. And yet, with the First Opium War and the Treaty of Nanking the BFM closed its mission in Singapore and eventually opened a mission at Xiamen, one of the five treaty ports established by the Treaty of Nanking. Plans were also made and missions opened in Ningbo, Canton, and Shanghai.