The Building Materials Division of Wanghai Group Co., Ltd. was established in 2008, including Nanjing Wanghai Concrete Co., LTD., Nanjing Meishan Haiqiang New Building Materials Co., LTD., Nanjing Hongwei Pipe Co., LTD., Nanjing Wanghai New Material Technology Co., LTD., with a registered capital of 30 million yuan. The company adheres to the enterprise philosophy of "high efficiency and energy saving, green production, scientific and technological innovation, quality first".

Nanjing Wanghai Concrete Co., Ltd. covers an area of 80 acres, has 200 employees, fixed assets of 100 million yuan, has grown into an annual production capacity of 2 million m³ of large concrete enterprises, annual sales exceeded 500 million yuan, 2019, 2020, the annual tax exceeded 20 million yuan.

The company has 4 advanced production lines with a daily capacity of 8,000 m³, with 16 sets of 37 m ~ 67 m automobile pumps, 5 sets of high pressure vehicle pumps and 140 concrete trucks.
We take the lead in the industry to use ERP assisted management, with more than 20 excellent engineering and technical personnel, and establish a reliable and traceable quality assurance system. The company has been awarded the title of "Excellent Enterprise" in Nanjing Concrete Enterprise credit management for many years.

The company has cooperated with Nanjing University of Technology and has 1 invention patent and 24 utility model patents. In 2015, our company won the third prize of science and Technology of China Circular Economy Association.

The company has invested a total of 30 million yuan in environmental protection funds, built a fully sealed workshop, silo, with two high-pressure sprinklers, a sweeping truck, a new type of sand separator, as well as automatic car wash and automatic spray system. In terms of environmental management, it has achieved "three fully sealed, two zero emission, and one normalization", and has become a green and environmentally friendly concrete production enterprise.

After years of development, the company has served a large number of key municipal projects and projects related to people's livelihood such as Nanjing Metro Line 2, 5 and 7 project, Nanjing Youth Olympic Village project, Nanjing International Exhibition Center, and Zhonghe Village affordable housing. It is one of the concrete companies with the largest production capacity of a single station in Nanjing, and continues to contribute its own strength to social development.