At the “2018 Innovation Forum for Mayors of International Sister Cities of Chengdu” that took place on May 18, Kampala of Uganda and Kandy of Sri Lanka respectively signed memoranda of understanding on forming friendly cooperative relations with Chengdu, while a letter of intention on economic and cultural collaboration was inked between Toronto and Chengdu. So far, the number of international sister cities and cities with friendly cooperative relations of Chengdu rose to 88.

在5月18日举行的“2018成都国际友城市长创新论坛”上，乌干达坎帕拉市、斯里兰卡康提市分别与成都市签署了建立友好合作关系备忘录，加拿大多伦多市与成都市签署了经济文化合作意向书。截至目前，成都的国际友好城市与国际友好合作关系城市已增至88个。