| Contracting Parties/Signatories | Signature | Instrument | In Force | Details |
| Bangladesh | December 8, 1971 | | | |
| Brazil | December 8, 1971 | Ratification: November 22, 1972 | February 11, 1973 | Details |
| Chile | December 8, 1971 | Acceptance: April 19, 1974 | May 19, 1974 | |
| Egypt | December 8, 1971 | Acceptance: July 16, 1973 | August 15, 1973 | |
| Israel | December 8, 1971 | Ratification: June 8, 1972 | February 11, 1973 | |
| Mexico | December 8, 1971 | Acceptance: July 30, 1974 | August 29, 1974 | |
| Pakistan | December 8, 1971 | Ratification: October 5, 1972 | February 11, 1973 | |
| Paraguay | December 8, 1971 | | | |
| Peru | December 8, 1971 | Acceptance: April 29, 1976 | May 29, 1976 | |
| Philippines | December 8, 1971 | | | |
| Republic of Korea | December 8, 1971 | Ratification: January 9, 1973 | February 11, 1973 | |
| Romania | December 8, 1971 | | | |
| the former Yugoslav Republic of Macedonia | December 8, 1971 | Approval: May 18, 1972 | February 11, 1973 | |
| Tunisia | December 8, 1971 | Acceptance: February 5, 1973 | March 7, 1973 | |
| Turkey | December 8, 1971 | | | |
| Uruguay | December 8, 1971 | Acceptance: August 11, 1975 | September 10, 1975 | |