The plant eventually became the railroad's biggest customer and the line was purchased outright in 1939 by Singer. In 1927, the Appalachian Lumber Company built a network of logging lines in the upper portion of Pickens County.
Over time, the plant grew to become the railroad's primary client, and by 1939, Singer purchased the entire line. Prior to that, in 1927, the Appalachian Lumber Company established a system of logging roads in the northern section of Pickens County.