The first set of Yunnan mengzi customs clearance, Mengzi County, Yunnan Province, located in South Lake. The existing building was built after the Guangxu years mengzi switch trading, including the division of mengzi Customs and Revenue Agency, the French consul Mansion, gardens, brother Lu worked on five protection sites, mostly of Ho Chi Minh City.

At the turn of the 19th century, French Indochina was in the midst of an explosion of railway construction sponsored by its colonial government. A railway from Indochina reaching toward Yunnan was first conceived by Jean Marie de Lanessan, Governor-General of French Indochina from 1891 to 1894. De Lanessan had been convinced of the necessity of building railways to connect the different parts of Indochina, and had identified, among others, a route connecting Hanoi and Lào Cai that should be built as a matter of priority.[7] His recommendations were seized upon by Paul Doumer, Governor-General from 1897 to 1902, who expected that the establishment of a railway line leading into resource-rich Yunnan would permit France to gain a foothold there and to gain privileged access to the Chinese market.[nb 1][8] His proposal to the French government, submitted soon after his appointment in 1897, included plans for a railway connecting Hai Phong to Kunming. This railway, approved in 1898, was the only railway line proposed by Doumer to be accepted in its entirety.[9]

Construction of the first two legs of the railway began in Haiphong, Vietnam in 1900 and continued until 1906, when tracks finally reached Lào Cai, on the Chinese border. Construction of the Hekou–Kunming leg began in 1906 and continued until 1910. This section opened on April 1, 1910. The Faux-Namti bridge was constructed across the Sicha River, which lay in the path of the railway, from 1907 to 1908