BEIJING - Chinese Premier Li Keqiang and Greek Prime Minister Alexis Tsipras vowed Wednesday to further advance the friendly ties and win-win cooperation between their countries during a telephone conversation.

Li said China treasures bilateral friendship and continues to expand pragmatic cooperation with Greece. He wishes that both sides continue to be equal partners to achieve mutual benefit and win-win outcome, so as to lift bilateral ties to a higher level.

For his part, Tsipras said the Greek government also prioritizes relations with China and welcomes China to invest more in Greece.

Pledging not to change the nature of existing cooperation projects with China, Tsipras said Greece is confident that, together with China, the two countries' friendly and cooperative ties will be further advanced.

Li said that the China-Greece relationship enjoys huge potential and that achievements generated in their cooperation have benefited the two peoples.

The Chinese premier added that since Greece reffairmed welcome for Chinese investment and promised to implement existing bilateral deals, it should provide better legal guarantee for Chinese enterprises operating in Greece.

The Piraeus port project, a success of China-Greece cooperation, has boosted not only local employment, workers' rights and interests, but also the conservation and improvement of their working conditions, Li stressed, hoping that both sides keep own promises.