2020 Jiangsu Top Construction Enterprises (Construction and Installation)--Jiangsu Provincial Department of Housing and Urban-Rural Development, Jiangsu Bureau of Statistics, Jiangsu Provincial Department of Commerce

Original copy of the Group's business license

Occupational health and safety management system certification

Jiangsu Installation Industry Association Intelligent and Fire Protection Branch--Vice President Unit--Plaque

Member certificate of Jiangsu Survey and Design Industry Association