The 140th Canton Fair kicked off in Guangzhou to mark its 70th anniversary. More than 30,000 exhibitors and about 340,000 overseas buyers are participating. Around 64 percent of exhibitors use industrial internet and AI technologies. New and green products reach record proportions. The fair rolls out 22 smart scenarios and 16 AI applications. As a key foreign trade barometer, it supports the multilateral trading system and an open world economy.