José Ajuricaba Da Costa e Silva - President | Brazil | January 1990 - December 1995 |
José Enrique Rojas Franco - Vice President | Costa Rica | January 1991 - December 1996 |
Carlos Balsa D'Agosto | Uruguay | January 1992 - December 1997 |
Alejandro Tinoco | Venezuela | January 1993 - December 1998 |
David A. Gantz | United States of America | January 1994 - December 1996 |
Enrique Ponce y Carbo | Ecuador | January 1995 - December 2000 |