Chinese Premier Li Keqiang (R, front) meets with Federica Mogherini, European Union (EU) High Representative for Foreign Affairs and Security Policy and Vice-President of the European Commission, in Beijing, capital of China, May 6, 2015. [Photo/Xinhua]

Mogherini, who visited China shortly after taking her position, said she sees relations with China as a priority and believes the upcoming EU-China leaders' summit will be a key moment to strengthen and expand their ties.

The EU looks forward to Li's attendance at the summit, which is designed to boost mutual investment and economic cooperation, Mogherini said.

Mogherini is leading an EU delegation at a regular strategic dialogue with top Chinese officials, where the two sides exchange views and develop political and economic common ground.

She told Xinhua News Agency in an earlier interview that she would discuss a number of crises, such as the situations in Ukraine, the Middle East, Afghanistan and Libya, as well as discuss how to prevent others.

The EU is China's biggest trading partner, while China is the EU's second-largest. Bilateral trade stood at 467 billion euros ($519 billion) last year.

zhaoyinan@chinadaily.com.cn