The Sangnong mine(상농광산) is one of the largest gold mines in North Korea and in the world.
[1] The mine is located in the center of the country in South Hamgyong Province.
[1] The mine has estimated reserves of 6.4 million oz of gold.
The mine also has reserve40°36′00″N 128°43′30″E / 40.600°N 128.725°E / 40.600; 128.725s amounting to 200 million tonnes of ore grading 0.23% copper metal.
[1] A trolleybus line opened in 1993, linking the mine to Sangnong-rodongjagu.