the Presidium of the Supreme People's Assembly downgraded Nampo from a directly governed city (chikhalsi) to a normal city belonging to South Pyongan Province. For some time after this, Chollima-guyok, Kangso-guyok and Taean-guyok districts became counties (gun) of South Pyongan Province. By 2012, these counties were re-promoted to districts.

In 2010, the city was detached from South Pyongan Province, and the counties