Introduction to Beihai Branch of Daqing Post: In 1877, the British established a consulate in Beihai, and in the same year the Qing government established a customs in Beihai. In order to handle business needs such as letters and packages for foreign mission officials, diplomatic envoys and their families, Beihai Customs has a "Customs Mailing Bureau" attached. In 1896, the Qing government established the "Qing Post". The following year, the "Customs Mail Bureau" in Beihai was converted into the "Beihai Branch of Qing Post Office" run by the state, becoming one of the earliest postal branches in my country.