No.57 Changning District Popularity Ranking Shanghai No.1 Yi Dong Communication No.3 Communication No.4 Communication Engineering No.5 Wu Lines Communication No.5 Communication Chips No.6 Hang Ye Xin Informatization No.7 Communication Equipment No.12 Communication Systems No.14 5G No.14 5G Technology No.22 Zi Zhu Ke Kong No.36 Informatization Construction 高新技术企业 市级专精特新中小企业 专精特新小巨人企业 省级高新技术企业 省级创新型中小企业 市级高新技术企业