Xi said he met Duterte twice last year and reached important agreements with him, which led to the comprehensive rapprochement in the bilateral ties.
At present, the two countries are deepening political mutual trust and carrying out cooperation in various fields, he said, noting that a channel of dialogue and consultation on the South China Sea issue has also been set up.
All these efforts, in line with the fundamental interests of the two countries and peoples, have been fully affirmed by their Asian neighbours and the international community, Xi added.
China appreciates the Philippines' key role in boosting cooperation in East Asia along the right direction as the rotating presidency of the Association of Southeast Asian Nations (ASEAN), said the Chinese president.
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He welcomed Duterte, the leader of a friendly neighbor of China and important partner of the Belt and Road Initiative, to attend the upcoming Belt and Road Forum for International Cooperation to be held on May 14-15 in Beijing, saying he looks forward to meeting with the Philippine president again, state-run Xinhua news agency reported.
As the rotating presidency of ASEAN, Manila is ready to advance the bloc's relations with China, and to conduct close communication and cooperation with Beijing in international and regional issues, he said.
He said that he looks forward to attending the upcoming forum in Beijing.
The two leaders also exchanged views on the situation on the Korean Peninsula.
Xi said China firmly stands for the realisation of a denuclearized peninsula and for the maintenance of its peace and stability, saying the issue should be solved through dialogue and consultations.
China is willing to see ASEAN's active role in securing regional peace and stability, he noted.