North Korean exports of seafood dropped to zero in September, Chinese trade figures indicate, as a new UN resolution passed in August targeting the DPRK’s revenue streams took hold.

Formerly one of the North’s most valuable exports earning the country in excess of $100 million a year, UN Resolution 2371 included the DPRK’s seafood shipments to a list of prohibited products along with iron, coal, and lead.

“The DPRK shall not supply, sell or transfer, directly or indirectly, from its territory or by its nationals or using its flag vessels or aircraft, seafood (including