Construction of the uranium milling facility in Kusŏng was completed in 1989. Some sources consider this to be a uranium "conversion" facility. However, this facility processes uranium ore into yellow cake, or UO2. Therefore, the proper description of this facility's function is "milling." In August 1991, the Kusŏng Uranium Milling Facility was reported to have a processing capacity of 300kg of ore per day.

Sources:
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