Covert Shores – A major question is whether ‘Hero Kim Gun-ok’ is the same submarine which was showing in 2019 when Kim Jong Un visited Sinpo. That boat, known in the West as Sinpo-C, was undergoing conversion to carry missiles. The temptation is to say that it is probably the same submarine. However, a comparison if the available imagery identifies significant and numerous differences. 

(Thanks to Alain)