Core Viewpoint - The article discusses the implications of the Hainan Free Trade Port's full closure operation, emphasizing the opportunities and changes it brings to businesses and residents in Hainan, particularly through tax incentives and simplified regulations [5][6]. Group 1: Concept of "Border Control" - The term "Hainan closure" does not imply isolation but rather a new concept of "domestic border control," allowing free movement of people while regulating goods [8][10]. - Visitors to Hainan will no longer need special permits, as they can enter with just an ID card, while enjoying duty-free shopping similar to airport duty-free stores [10][11]. Group 2: Taxation Changes - The shift from a "positive list" to a "negative list" for tax exemptions means that only specified goods will incur tariffs, increasing the proportion of duty-free items from 21% to 74% [18]. - The introduction of a new sales tax system simplifies the tax process for businesses, reducing costs and potentially lowering retail prices [25][28]. Group 3: Business Opportunities - Hainan's manufacturing sector can benefit from lower costs due to the elimination of tariffs on imported materials, provided that the value-added processing exceeds 30% [21][23]. - The two 15% tax rates for corporate and personal income taxes are designed to attract high-end talent and businesses to Hainan, making it an appealing destination for investment [39][41]. Group 4: Consumer Impact - Residents and tourists in Hainan will experience an increase in available duty-free products, enhancing their shopping experience without the need to travel abroad [32][34]. - The new EF account system will facilitate faster cross-border transactions, benefiting businesses engaged in international trade [36].