| December 2021 | S/2022/174 | Niger | Mr. Abdou Abarry |
| November 2021 | S/2022/707 | Mexico | Mr. Juan Ramón de la Fuente |
| October 2021 | S/2022/946 | Kenya | Mr. Martin Kimani |
| September 2021 | S/2022/614 | Ireland | Ms. Geraldine Byrne-Nason |
| August 2021 | - | India | Mr. T.S. Tirumurti |
| July 2021 | S/2021/938 | France | Mr. Nicolas de Rivière |
| June 2021 | S/2021/1032 | Estonia | Mr. Sven Jürgenson |
| May 2021 | S/2021/683 | China | Mr. Zhang Jun |
| April 2021 | S/2021/1084 | Viet Nam | Mr. Dang Dinh Quy |
| March 2021 | - | United States | Ms. Linda Thomas Greenfield |
| February 2021 | S/2021/1060 | United Kingdom | Ms. Barbara Woodward |
| January 2021 | S/2021/1014 | Tunisia | Mr. Tarek Ladeb |