23 Members (excluding the associate or suspended members but including the countries represented on their behalf) [The rulers are not necessarily the representatives in the organisation. ] :
| | ARGENTINE | (Buenos Aires a + Olivos r) | | President Alberto Fernandez | | |
| | BOLIVIA | (Sucre cj + La Paz eir) | | President Luis Arce | | |
| | BRAZIL | (Brasilia) | | President Jair Bolsonaro | | |
| | CHILE | (Santiago of Chile a + Valparaiso l + Vina del Mar s) | | President Sebastian Pinera | | |
| | CHINA | (Beijing) | | Xi Jinping | | |
| | CUBA | (Havana) | | Raul Castro | | |
| | ECUADOR | (San Francisco of Quito) | | President Lenin Moreno | | |
| | EGYPT | (Cairo a + Alexandria r + Almasa New Capital City f) | | President Abdel Fattah el-Sisi | | |
| | GUATEMALA | (Guatemala City) | | President Alejandro Giammattei | | |
| | INDONESIA | (Jakarta a + Bogor r + Chipanas r + Yogyakarta r + Tampaksiring r) | | President Joko Widodo | | |
| | INDIA | (New Delhi a + Simla s + Bolarum w) | | President Ram Nath Kovind | | |
| | MEXICO | (Mexico City) | | President Andres Manuel Lopez Obrador | | |
| | NIGERIA | (Abuja a) | | President Muhammadu Buhari | | |
| | PERU | (Lima a + Arequipa d + Cusco h) | | President Francisco Sagasti | | |
| | PHILIPPINES | (Manila acr + Quezon City b + Pasay City b) | | President Rodrigo Duterte | | |
| | PAKISTAN | (Islamabad) | | President Arif Alvi | | |
| | PARAGUAY | (Assumption) | | President Mario Abdo Benitez | | |
| | THAILAND | (Bangkok) | | King Rama X. Vajiralongkorn | | |
| | TANZANIA | (Dodoma City al + Dar Es Salaam jnqr) | | President John Magufuli | | |
| | URUGUAY | (Montevideo) | | President Luis Alberto Lacalle Pou | | |
| | VENEZUELA | (Caracas) | | President Nicolas Maduro | | |
| | SOUTH AFRICA | (Pretoria ae + Cape Town l + Bloemfontein j + Johannesburg d) | | President Cyril Ramaphosa | | |
| | ZIMBABWE | (Harare) | | President Emmerson Mnangagwa | | |