China's Hainan establishes legislative advisory committee for free trade port2021-01-13 18:54:20People shop at a duty-free store in Haikou, capital of South China's Hainan province, on Nov 10, 2020. [Photo/Xinhua] HAIKOU -- A legislative advisory committee has been established in Haikou, the capital of South China's Hainan province, to improve legislatio..