What is the relationship between Zhejiang Jiaogong and Zhejiang Communications Group?

In terms of affiliation. According to official website of Zhejiang Communications Group, Zhejiang Jiaogong Communication Technology Development Co., Ltd. is a subsidiary of Zhejiang Communications Group. Zhejiang Jiaogong Group Co., Ltd. is a wholly-owned state-owned subsidiary, a professional third-party highway engineering test and testing institution, and has a comprehensive Grade A certificate of highway engineering from the Ministry of Transport and a qualification certificate from Zhejiang Province.