Numerous foreign companies present at last week’s 2019 Spring International Trade Fair in Pyongyang are also doing business with companies in the United States, NK Pro analysis reveals.

While trading with North Korea and the U.S. does not necessarily constitute a breach of Washington’s unilateral sanctions, some of the Chinese companies appear to be advertising goods currently prohibited for export under UN resolutions.

If the companies are also transacting in U.S. dollars, moving money through U.S.-based banks or accounts, or doing business with sanctioned North Korean entities, it could increase