P1:The letter sent to WTUF from UN, document URL :https://esango.un.org/civilsociety/documents/665304/032_World%20Trade%20United%20Foundation%20Ltd.pdf; P2: "Prayer Conference for World Peace, Promoting UN’s SDGs" in Hong Kong; P3: WTUF participated the International High-level Conference of Water Action Decade as an official partner.; P4: Special Envoys and representatives of 25 countries participated in the 9th Global Sustainable Development Forum on Water Resources.
