Abstract

Eco-industrial chains construct economic activities into the "resource-product-renewable resource" feedback
processes based on ecology laws, improve resource utilization, reduce emissions, and improve the quality of
economic activities and environmental benefits. Trust and the good cooperation relationships between the
enterprises from eco-industrial chains are the prerequisite and basis for running ecological industry systems. A
trust mechanism between enterprises, an incentive and punishment system, and a legal system and industrial
policies should be established to promote industrial ecology. Government should play a good role of "guidance"
and "coordination". There is a smooth linkage between the upstream and downstream of the industrial ecology
chain so that “upstream supplies and downstream receives”, the stability of the industrial ecology system can be
achieved.

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