Nineteen presentations were made by NOWPAP Member States (China, Japan, Korea, and Russia), NOWPAP staff and FAO/UNEP Consultants, including a keynote speech and special lecture. Around 90 people participated in the workshop. Through the workshop, participants shared information on: (1) countermeasures implemented in specific areas; (2) the reduction and prevention efforts implemented in each country; (3) countermeasures against fisheries-related marine litter; (4) coastal cleanup; (5) marine litter management policies and systems; and (6) regional actions against marine litter, including in the neighbouring COBSEA Region. In the discussions of each session, participants actively exchanged opinions in the pursuit of more effective ways to solve marine litter problems. The information and opinions shared at this workshop help develop a Regional Action Plan on marine litter in the NOWPAP Region.