Jiangsu Xinguang Environmental Protection Engineering Co., Ltd. was established in April 2002 with a registered capital of RMB 100 million. It is a wholly-owned subsidiary of Changzhou Tiansheng New Materials (stock code: 300169). The company is a professional and advanced comprehensive environmental protection noise reduction service provider integrating the R&D, production, sales and construction of noise reduction products. It has a professional and advanced environmental protection noise reduction contracting level 1, a professional steel structure engineering contracting level 2, and a construction mechanical and electrical system. Level 3 qualification for professional contracting of installation engineering and level 3 qualification for professional contracting of foundation engineering, and has passed the national quality management system certification (ISO9001), environmental management system certification (ISO14001), occupational health and safety management system certification (ISO18001), and national high-tech enterprises The company's credit rating is AAA-level enterprise after United Credit Management Co., Ltd.

The company's business covers the design, construction of noise reduction projects such as railways, municipalities, urban rails, airports, hospitals, schools, industrial and mining enterprises, the research and development, production and sales of advanced sound-absorbing materials; consulting, design and construction of soil restoration projects.

For more than ten years, the company is committed to the services of railways, rail transit and highway environmental protection noise reduction industries. In terms of railways, it has successively served Hewu, Xiamen, Ningbo, Taiwan and Wenfu, Wenfu, Shanghai and Kunqu, Beijing and Shanghai, Ningbo, Hefu, Chengdu and Chongqing. More than 100 large and medium-sized railway projects in China, including Shenmao, Beijing-Shenzhen, Hangzhou-Huangzhou, Anhui-Jiangxi Railway, Guangzhou-Zhuhai Intercity Railway, etc., provide noise reduction services for more than 100 large and medium-sized railway projects in China. In terms of urban rail transit, the company has successively extended the east extension of Nanjing Metro Line 2 and Nanjing Metro Line 1, Nanjing Metro Line 10, Nanjing Metro Airport Line, Ningtian Intercity, Wuhan Metro and other rail transit projects provide in-depth design, noise reduction products and installation services for projects; in recent years, the roads have been the Third Ring Road for Xuzhou Projects such as elevated and Guangzhou Zengcheng to Huadu Expressway provide front noise reduction services.

The company has established scientific research cooperation relationships with Southeast University, Nanjing University of Technology, Beijing Jiaotong University and other universities, and cooperated with the Chinese Academy of Sciences in July 2011 to establish a provincial engineering technology research and development center. At present, the company has obtained 31 invention patents and inventions. 5 authorizations and 12 utility models.