The Tianjin Free Trade Zone Experimental Area supports the use of electronic fences and blockchain verification techniques by enterprises in the special supervision area.

According to the China News Network, the Tianjin Port Free Trade Zone held a press conference on the 5th of the "Tianjin Free Trade Zone Experimental Area Support and Encourage Aviation Bonded Maintenance and Remanufacturing Industry Development Measures" (hereinafter referred to as "Several Measures"). The "Several Measures" support the enterprises in the special area of ​​the Tianjin Free Trade Zone Experimental Area to adopt the electronic fence network block verification and other technical means to promote the "batch in and out, centralized declaration" convenient customs clearance mode.