From October 28th to 29th, Hisun received ISO14001 Environmental Management System Reexamination by auditing experts from Zhejiang Huanke Certification Center for Environment, and passed the reexamination successfully. In the work of auditing, auditing group audited on the executive condition of Hisun environmental management system by the method of verifying positive information, reporting negative information, questioning and communicating, examining record files, inspecting at scene, etc.. They represented that the environmental management of Hisun was better than that of last year, informations communicated clearly with various methods, effectively developed internal audit and management evaluation, gradually improved the three-grade supervision mechanism, took measures to improve the environmental suggestion proposed by outside examinnation and the environmental problems proposed by internal audit with efforts.