The Changsang Line is an electrified freight-only railway line of the Korean State Railway in South P'yà Ângan Province, North Korea, running from Hyangjang on the P'yà Ângdà Âk Line to Changsang.
On 21 June 1940, the West Chosen Central Railway, which since 1939 had been operating a line between Sà Ânghori and P'yà Ângnam Kangdong, received approval from the Railway Bureau of the Government-General of Korea to build a line to the Changsang coal fields via Tà Âkch'à Ân; the Chosen Anthracite Company had opened mines around Changsang and Tà Âkch'à Ân in 1938
From Tà Âkch'à Ân, which it had reached in the summer of 1945, the West Chosen Central Railway planned its Tà Âkpal Line () line to run from Tà Âkch'à Ân to Kujang via Changsangri (today's Changsang Station), to connect there with the Chosen Government Railway's Manp'o Line. However, the terrain proved too difficult, and, after adding a signal station at Hyangjang between Hyangwà Ân and Changsangri, construction on the current alignment of the line to Kujang began. However, this wasn't completed before the end of the Pacific War, and it was only after the end of the Korean War that the connection to Kujang and the Manp'o Line was finally made.
After the partition of Korea following Japan's defeat in the war, all railways in North Korea were nationalised and made part of the Korean State Railway. The P'yà Ângyang Colliery Line (P'yà ÂngyangâÂÂSinsà Ângch'à Ân) and the former West Chosen Central Railway mainline (Sinsà Ângch'à ÂnâÂÂTà Âkch'à Ân) were joined together to form the P'yà Ângdà Âk Line; after the Tà Âkpal Line was extended to Kujang after the end of the Korean War, it was later merged with the P'yà Ângdà Âk Line, but the line's name was not changed, while the HyangjangâÂÂChangsangri section became the Changsang Line. Electrification of the line was completed in June 1979.
A yellow background in the "Distance" box indicates that section of the line is not electrified.