HRMARS - With the full implementation of the RCEP, examining the efficiency and potential of China’s agricultural exports to member countries is important for strengthening regional agricultural cooperation, optimising export allocation, and informing trade policy. Using panel data for China and 12 RCEP members from 2005 to 2022, this study applies a time-varying stochastic frontier gravity model to assess trade efficiency, export potential, and their determinants. The results show that China’s