What is the difference between Zhonghao Chenguang Chemical Research Institute and Zhonglan Chenguang Chemical Research Institute? Is there any connection between them?

It was originally a public institution. 1965 was established in Fushun county, Zigong, formerly known as Chen guang chemical research institute of the Ministry of chemical industry, with a branch (scientific research part) and four branches. 1986, Chengdu silicone Applied Research Center was established in Chengdu with the assistance of the United Nations. The scientific research part, the former Chen Guangyi branch, was moved to Chengdu, and the factory part remained at the original site. 1992, the two parties officially separated. Chengdu was renamed Chen Guang Chemical Research Institute of the Ministry of Chemical Industry (Chengdu), and Fushun was renamed Chen Guang Chemical Research Institute of the Ministry of Chemical Industry (Zigong). 1999, which was transformed into an enterprise according to the requirements of the State 242 Institute for Transformation. Chenguang Chemical Research Institute (Chengdu) entered China Bluestar Group Company as a whole and was renamed Zhonglan Chenguang Chemical Research Institute; Chen Guang Chemical Research Institute (Zigong) entered China Haohua Company and was named Zhonghao Chen Guang Chemical Research Institute. The business scope of the two companies overlaps, but the scientific research strength of Zhonglan Chenguang has always been the leader in the industry. Today, these two companies are also third-level companies under China National Chemical Corporation.