The city also has "friendship" or "co-operation agreements" with a number of other cities: Moscow (2009−) and St Petersburg (2010−) in Russia and Guadalajara in Mexico (2013−), and has previously proposed an agreement with Rio de Janeiro also.  Previous agreements have included those with Mexico City (2014−2018), Tbilisi in Georgia (2014−2017) and Wuhan in China (2016−2019).