On 17 July 2023, Mrs. Ureerat Chareontoh, Director-General of Thailand International Cooperation Agency (TICA), and Ms. Youngsuk Jun, Country Director of the Korea International Cooperation Agency (KOICA), signed the Fourth Action Plan between the Thailand International Cooperation Agency and the Korea International Cooperation Agency on the Joint Cooperation (2023-2025) at the Ministry of Foreign Affairs of Thailand. The signing ceremony was attended by the representatives from related Thai authorities. This Fourth Action Plan encompasses bilateral and trilateral cooperation in various fields such as fisheries, water resources management, science, technology and innovation (STI) and human resource development. It will serve as an operating mechanism to advance the two countries’ development cooperation at both bilateral and trilateral levels, especially in the Mekong Sub-region and beyond.