High Levels of Activity at North Korea’s Sinpo South Shipyard

August 14, 2017

38 North:

Recent commercial satellite imagery reveals several developments suggesting that North Korea may be accelerating the development of the sea-based leg of its nuclear forces. Of particular interest in the imagery is that netting or tarps have been suspended above both the fore and aft decks of the SINPO-class submarine obscuring any activity taking place beneath them. This was last done prior to the July 9, 2016 test of the Pukguksong-1, suggesting that the North may be preparing for a new series of “at sea” test launches, has undertaken modifications or upgrades to the submarine’s launch systems, or is developing a more advanced version of the Pukguksong-1. Recent ejection tests of an SLBM also support the assessment that an at-sea SLBM test may be forthcoming.

Additionally, imagery of the Mayang-do Navy Shipyard and Submarine Base shows the same number of ROMEO-class submarines that are usually berthed there, indicating that a recent spike in ROMEO activity in the East Sea (Sea of Japan) was a singular rather than force-wide event…

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