Speaking at a news conference in Beijing on Monday, Guo Yezhou, deputy head of the International Department of the CPC Central Committee, said Xi will use the summit to speak to the international community about the CPC's attention to, and concerns about, the future of humanity.

Guo said world political parties' focus when looking at China and the CPC has shifted from China's achievements to the political impetus and "institutional secret" behind the country's success.

Given the profound changes in the international landscape, no individual or country can remain immune to the common challenges facing the world, he said, adding that solidarity is the only way forward.

"We look forward to developing closer cooperation with world political parties to align parties' interests with national interests, the interests of our own people with those of the people of the world," Guo said.

"We hope to build up more consensus and pool more strength on major issues concerning the future of humanity, move toward building a community with a shared future for mankind, and build a better world together."