The Regional Comprehensive Economic Partnership Agreement (RCEP), the world's largest free trade agreement including 15 Asia-Pacific countries, was finalized at the 4th RCEP Summit. While the government anticipates diversified trade and expanded export markets, the fisheries industry expresses concerns about potential negative impacts due to lack of discussion and the agreement's effect on tariffs and market liberalization. The article emphasizes the need for collaboration between the government and the industry to mitigate these impacts and highlights the significance of understanding Japan's role in the agreement. Despite concerns, particularly related to potential changes in origin standards and certification procedures, the focus is on developing strategies to minimize damage and establish a leading role in the regional trade environment.