1 / 5   From bustling metropolises to tranquil old towns, the 4,350 km-long Lancang-Mekong River runs through six countries in Asia, including China, Myanmar, Laos, Thailand, Cambodia and Vietnam. /CFP Photo

2 / 5   Featuring rich natural resources and serving as an important trade route linking communities on its banks, the lifeblood of the region has brought prosperity and opportunities to its nations. /CFP Photo

3 / 5   In March 2016, the six countries launched the Lancang-Mekong Cooperation (LMC) mechanism allowing for cooperation in areas like regional security, trade, clear energy, infrastructure, ecosystem protection and people-to-people exchanges. /CFP Photo

4 / 5   In January, the six states approved a Five-Year Action Plan (2018-2022), charting a blueprint for the sub-regional cooperation and the regional integration. /CFP Photo

5 / 5   What is your expectation for Lancang-Mekong cooperation? What will the river be like in 2022? /CFP Photo