North Korea and Russia are jointingly hosting a large information technology expo in Pyongyang this week, showing off new tech in a collaboration that one expert called a clear violation of international sanctions.

The event opened on Tuesday at Pyongyang’s Sci-Tech Complex and features “advanced IT products and scientific achievements” presented by research institutions and companies from Russia and North Korea, the Korean Central News Agency (KCNA) reported on Wednesday.

KCNA carried multiple photos from the DPRK-Russia Information Technology Product Exhibition, showing booths with promotional materials and communication devices, a ship simulator, the North Korea’s Jonsongcard payment system and