December 13, 2019, by Joseph S. Bermudez Jr. and Victor Cha— The Magunpo Solid Rocket Motor Test Facility is located a few kilometers west of the Hamhung-Hungnam area and along the east coast of North Korea. December 6 imagery shows minor activity at the facility, including the presence of a small truck and some crates. Although no recent test appears to have taken place (i.e., absence of scarring in the exhaust deflector and healthy surrounding vegetation), the facility appears to be well-maintained and ready for solid rocket motor testing at any time. A successful test of solid fuel propellant engine, particularly at the east test stand, would denote another major advancement in survivable nuclear weapons capability, and would presumably also be designed to put additional pressure on the U.S. to make concessions in negotiations.