Wuxi Product Quality Supervision and lnspectionlnstitute passed the inspection.

The Company implements the standards of "GB/T12350-2009 SafetyRequirements for Low Power Motors", "JG/T411-2013 Electric Rollingshutter door"，"GA603-2006 Fire Rolling shutter
door","GB3836-2010Explosion Environment" Part 1 and Part 2,"GA/T73-2015 Mechanical Anti-theft Lock", etc. Compulsory product certification complies with self-statement of product
compliance. They have passed the certification ofChina Quality Certification Center and the inspection of the NationalExplosion-proof Electrical Products Quality Supervision and
lnspectionCenter respectively.The National Fire Prevention Building Material QualitySupervision and Inspection Center passed the inspection,the FireProtection Product Conformity Assessment
Center of the Ministry of PublicSecurity passed the inspection，the Fire Protection Product Conformity Assessment Center of the Emergency Management Department passedthe inspection,
and the Wuxi Product Quality Supervision and lnspectionlnstitute passed the inspection.