The U.S. on Thursday sanctioned two Chinese shipping companies for helping North Korea evade sanctions, the first DPRK related designations since December last year.

The Department of Treasury’s Office of Foreign Assets Control (OFAC) and the U.S. Coast Guard also updated an advisory on North Korea’s deceptive shipping practices.

“The U.S. Department of the Treasury’s Office of Foreign Assets Control today announced the designation of two shipping companies that have helped North Korea evade sanctions,” an OFAC press release accompanying the designations reads.

“Treasury will continue to enforce our sanctions, and we are making it explicitly clear that shipping companies