Lancang–Mekong Cooperation
Lancang-Mekong Cooperation (LMC) is a multilateral format established in 2016 for cooperation between the riparian states of the Lancang River and Mekong River. The Lancang is the part of the Mekong that flows through China.
Source: Wikipedia — Lancang–Mekong Cooperation (CC BY-SA 4.0)