- Afghanistan
- Andorra
- Argentina
- Bahamas
- Bangladesh
- Bhutan
- Bolivia (Plurinational State of)
- Burundi
- Democratic Republic of the Congo
- Fiji
- Guyana
- Haiti
- Holy See
- Kiribati
- Lebanon
- Nepal
- Pakistan
- Paraguay
- Suriname
- Tonga
- Uruguay (will become bound by the PCT on 7 January 2025)
- Venezuela (Bolivarian Republic of)
- Yemen