In the famous hometown of overseas Chinese, there is a small lane in Lijia lane of Heshun Township, Tengchong County, Yunnan Province. This place is known as the "30% number", and many overseas Chinese at home and abroad know its name. Today, when we walk in Heshun and enter the "30% shop", we can see the long-standing "business road" of overseas Chinese.
According to genealogy, plaques and other historical records, "Sancheng" was actually created by Li Mao, Li Maolin and Lin Zixin in the early years of Daoguang in the Qing Dynasty. The so-called "Sancheng" refers to the joint venture and partnership of the three people“ "Sancheng" is an import and export overseas Chinese firm with the surname of Li in today's "Sancheng" alley as the main business, which deals in cotton, jade and silk trade. In the ancient capital of Myanmar, AVA? Mandelli and Burma eight North, Myitkyina, Yunnan, China, Yongchang, Xiaguan and Kunming all have stacks. The name "Sancheng" has been used for a long time in the overseas Chinese business houses in Yunnan. It has experienced four generations from the early years of Daoguang in Qing Dynasty to the end of Guangxu. Yin Rong, who was respected as the national teacher by King Pugan and King mintong of Myanmar, also worked in the "30% project" in awa at the beginning. It can be concluded that "Sancheng" is the earliest, longest operated and most abundant overseas Chinese firm in Yunnan.