Phu Nan Coffee is produced in the mountains of Doi Manipruek and is sold in many Coffee Shops in Nan province, but limited also at other places in Thailand. Since long this area has been the home of hill-tribe people that originated from China. And since the 1950-60's this area has been famous for the growing of poppies for opium. Since 1980-90's there have been Royal Project to help the local hill-tribes to change to other crops and build an sustainable life.
In 2006 Nan province was hit by a severe flooding that damaged homes, businesses and the environment. A part of this flooding was a result of uncontrolled deforestation for farming in the mountains. In the old days for poppies fields, nowadays unfortunately still for corn and rice.
But with the help from Royal Projects this is partly being replaced by fruit plantations and coffee plantations. Like the coffee plantations of Doi Manipruek near Thung Chang in Nan province. This coffee is sold in Coffee Shops in Nan but also at some places in Bangkok.