中国海南省自贸区30天免签：外国人旅游往来更便利，30天免签政策让更多外国游客能深度体验中国的风土人情，购物即时退税，在海南还能享受免税购物，买买买更方便了！China Hainan Province Free Trade Zone 30-day visa exemption: It is more convenient for foreigners to travel. The 30-day visa exemption policy allows more foreign tourists to experience China’s customs and customs in depth. They can get instant tax refunds when shopping. They can also enjoy tax-free shopping in Hainan, making shopping more convenient!