Enrique Ponce y Carbo - President | Ecuador | January 1989 - December 1994 |
José Ajuricaba Da Costa e Silva - Vice President | Brazil | January 1990 - December 1995 |
José Enrique Rojas Franco | 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 |