The Hainan Free Trade Port will officially launch nationwide special customs operations on December 18 this year. Why is December 18 so important? December 18, 1978, marks the start of China's reform and opening-up. From Shenzhen to Shanghai, that journey has now led to the Hainan Free Trade Port, China's highest level of opening yet. CGTN reporter Wan Hongjia takes you through the timeline.