- Republic of Azerbaijan (Qazax), in 2017.
- Sakartvelo (Mtskheta), tripartite agreement in 2014, Bilateral agreement in 2015.
- Italian Republic (Avola), in 2015.
- State of Israel (Akas), in 2015.
- Poland (Giżycko in 2005, Gmina Giżycko bilateral agreement in 2013, tripartite agreement in 2014, Koszalin in 2019, Malbork in 1997, renewed in 2017, Nowy Sącz in 1998, renewed in 2018).
- Kingdom of Sweden (Västra Götalands länd) in 2014, renewed in 2018.
- Turkey (Alanya), 2006.
- Ukraine (Ivano-Frankivsk in 2006, Lutsk) in 2010.
- Federal Republic of Germany (Rheine) in 1996, renewed in 2016, Schönebeck (Elbe) in 2003, renewed in 2017 (by Letter of Intent), Bilateral Partnership and Cooperation Agreement in 2022.
Information updated: 2024-01-09