Lisbon of Portugal and Qingdao of China have become sister cities. The signing ceremony was held in Lisbon City Hall on June 17, where Xia Geng, mayor of Qingdao, and Antonio Costa, mayor of Lisbon signed the agreement.

According to Xia Geng, Qingdao and Lisbon are both coastal port cities and have common goals in tourism and city development. The establishment of friendly relations between the two cities will enhance their cooperation with each other, Xia added.

Costa said that the sister cities of Lisbon and the Qingdao will bring opportunities for development and cooperation between the two cities.

A meeting between the two sides was held before the signing ceremony, with topics covering enhancing exchange, cooperation, and urban development in the future.