- Argentina
- Bolivia (Plurinational State of)
- Brazil
- Chile
- Colombia
- Ecuador
- Guyana
- Panama
- Paraguay
- Peru
- Suriname
- Uruguay
- Venezuela (Bolivarian Republic of)
Liaison carried out with:
France:
French Guiana
United Kingdom:
Falkland Islands (Malvinas)
* A dispute exists between the government of Argentina and the government of Great Britain and Northern Ireland concerning the sovereignty of the Falkland Islands (Malvinas)
