No.73 Jiangjin District Popularity Ranking Chongqing No.3 Xin Xing Construction Materials No.5 Sand Pulp No.5 Xin Xing Building Materials No.10 Concrete No.14 Plain Materials No.18 Shen Processing No.20 Gong Road Engineering No.30 Building Materials No.31 Energy Saving and Environmental Protection No.38 Low Carbon No.42 Environmental Treatment No.43 Municipal 高新技术企业 市级专精特新中小企业 省级高新技术企业 市级创新型中小企业