In fact, Hainan has always been an economic special zone, and it is the largest economic special zone in our country. However, based on Hainan's economic performance, it doesn't seem to deserve this status, so not many people pay attention to it. From a historical perspective, we cannot blame Hainan; after all, Hainan has a unique location, mainly covered by mountainous terrain as an island, and coupled with the lack of road connectivity to the inland, it is difficult for Hainan to develop manufacturing. In the past few decades, the economic special zones that have taken off primarily relied on manufacturing as their foundation. However, Hainan has its own characteristics: tourism. From a longer-term perspective, Hainan may not necessarily lose to economic special zones that are strong in industry, manufacturing, and technology. This closure operation refers to the establishment of a special area regulated by customs throughout Hainan Island, where there will be free access in the first line and control in the second line, with freedom within the island. After the closure operation across the island, imported 'zero tariff' goods will be managed under a negative list system, replacing the previous positive list of 'zero tariff' goods. Additionally, for enterprises in encouraged industries within the Hainan Free Trade Port, goods that have undergone processing and value-added that reach or exceed 30% will be exempt from import tariffs when entering the mainland through the 'second line.' It is foreseeable that Hainan will experience considerable development in the fields of trade and finance.