It is believed that it was through this trading network that tea (typically tea bricks) first spread across China and Asia from its origins in Pu'er county, near Simao Prefecture in Yunnan.
Det antages, at det var gennem dette handelsnet, at te (typisk te-pakker) først spredte sig over Kina og Asien fra sin oprindelse i Pu'er-området, nær Simao-præfekturet i Yunnan.