38North
“As springtime brings warmer weather and softer ground, work to expand the road and rail infrastructure throughout North Korea’s Sohae Satellite Launching Station continues. Recent commercial satellite imagery indicates that efforts to cut a new road, or possible rail bed, connecting the east tunnel entrance with the coastal launch pad and southern seaport are underway, which could allow for vehicles or launch materials to easily travel to and from the various parts of the complex.”
“The jetty extension progresses at the southern seaport. Imagery from March indicates that workers are using large concrete blocks to form the edge and widen the jetty. Several vehicles are observed. The activity is likely intended to form a jetty dock to allow for deeper draft vessels to be unloaded.”
https://www.38north.org/2025/03/sohae-satellite-launching-station-expansion-of-road-and-rail-infrastructure-continues/