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Ryanggang Province is a province in North Korea. The province is bordered by China (Jilin) to the north, North Hamgyong to the east, South Hamgyong to the south, and Chagang to the west. Ryanggang was formed in 1954, when it was separated from South Hamgyŏng. The provincial capital is Hyesan. In South Korean usage, "Ryanggang" is spelled and pronounced as "Yanggang" Korean: 양강도; RR: Yanggang-do, Korean pronunciation: ).