Its mandate derives from the exchanges of letters between the Secretary-General and the President of the Security Council (S/2016/88 and S/2016/89, S/2016/1128 and S/2016/1129, S/2019/1009 and S/2020/85, S/2023/70 and S/2023/71 and S/2026/53 and S/2026/83), as well as Council resolution 2349 (2017). — S/2026/53 | UN Mandate Registry