Today, 33 years ago, on October 31, 1992 (October 6, 1992) the State Council approved the establishment of a seaport tax zone. On October 31, 1992, after the State Council approved the establishment of a seaport economic development zone in Hainan, the seaport tax zone was officially approved by the State Council, which is a new step on the road to exploring the establishment of a "special tariff zone" in the Hainan Special Economic Zone. The seaport tax zone is a closed isolation management area open to the outside area. The seaport area is 1.93 square kilometers within the framework of the planning of the Seaport Gold Disc Industrial Zone. The seaport area will implement a more favourable policy, such as exemption from tariffs, domestic goods enter the seaport zone according to the same exit, can be taxed; the seaport