KIEV, June 7 (Xinhua) -- Chinese President Xi Jinping's special envoy, Cai Wu, attended the inauguration ceremony of Ukrainian President Petro Poroshenko on Saturday.

In a brief conversation with the Ukrainian leader, Cai passed on Xi's warm congratulations.

He said that China highly values its strategic partnership with Ukraine and is willing to promote the sound and steady development of China-Ukraine relations on the basis of mutual respect, equality and mutual benefit.

Poroshenko said the relations between Ukraine and China have been developing smoothly, with fruitful results yielded in various fields of cooperation.

He invited Chinese leaders to his country at any time convenient for them.

Ukrainian Prime Minister Arseny Yatsenyuk met Cai, who is Chinese cultural minister, later Saturday. Speaking highly of the bilateral ties, the two sides expressed willingness to work together to further strengthen the traditional friendship between the two countries and advance practical cooperation in various fields.