Chagang (Chagang-do) is a province in North Korea; it is bordered bi Cheenae tae the north, Ryanggang-do an Hamgyongnam-do tae the east, Pyongannam-do tae the south, an Pyonganbuk-do tae the wast. Chagang wis formed in 1949, efter being demarcatit frae North P'yŏngan. The provincial caipital is Kanggye.