"Any attempt to disrupt or even break industrial chains and supply chains that have been formed in the Asia-Pacific region over the years will only result in economic cooperation in the region coming to a standstill," Xi said in a written message for the APEC summit in Bangkok, as published by Chinese news agency.
Xi added that openness brings progress, calling on other powers to stop regarding the Asia-Pacific region as someone's backyard and ground for competition.
Xi arrived in the Thai capital, Bangkok on Thursday to attend the 29th informal meeting of APEC leaders.