The Pun'gang Line, also called the Nyà Ângbyà Ân Line, is a non-electrified railway line of the Korean State Railway in Nyà Ângbyà Ân County, North P'yà Ângan Province, North Korea, running from P'arwà Ân on the Ch'à Ângnyà Ân P'arwà Ân Line to Pun'gang. This line serves the Nyà Ângbyà Ân Nuclear Scientific Research Centre, located just south of Pun'gang Station.
The line was opened sometime between 1965, when a Soviet-supplied research reactor was put into service on the research centre site, and 1980, when construction of an experimental reactor was begun.
A yellow background in the "Distance" box indicates that section of the line is not electrified.