This year's China International Consumer Products Expo is the first major event since Hainan's island-wide customs clearance took effect. More than 3,400 brands from over 60 countries and regions are on display, and a staggering 65% of all exhibits come from overseas. So what's drawing them in? Zero tariffs, a massive consumer base, and a business-friendly environment. Follow CGTN's Guo Linjie to find out why global sellers are so optimistic about China's vast market.