A major Singaporean oil trader called the Winson Group is connected in multiple ways to two sets of ship-to-ship transfers of fuel that went to North Korea in May and June 2020, a new U.N. report suggests. 

The case is notable for linking a major international oil trader that reportedly has billions of dollars of credit to the illicit sale of fuel to North Korea in possible breach of U.N. sanctions, an activity usually dominated by low-level smugglers and criminal networks.