Since November 2021, the Provincial Department of Commerce has organized a special examination involving 80 industrial chains in 72 development zones. The list of “chain length system” of the industrial chain of Zhejiang development zone in 2021 was published. 37 industrial chains of 34 development zones were listed in the demonstration pilot units of “chain length system”; 8 industrial chains of 7 development zones are listed as excellent demonstration units of “chain length system”, and 10 ...