Two North Korean-flagged ships recently called in at a Chinese port capable of processing metals and minerals, the NK Pro Ship Tracker shows, the second such instance over a ten-day period.

While an earlier NK Pro report highlighted how three DPRK-flagged freighters visited a coal handling facility in Longkou, another two members of the country’s fleet were visiting a different port further north.

One of the DPRK’s ships arrived at the Chinese facility on May 21 and was on its way back to North Korea two days later, while the other arrived a week