Established in 2017, Hunan Longsen Chemical Co., Ltd. is a wholly-owned subsidiary of Yueyang Ruikang Biotechnology Co., Ltd. (enzyme preparation). It is a comprehensive high-tech production enterprise integrating research and development, production, sales and technical service support of textile waterproofing agent. Located in the Science and Technology Entrepreneurship Service Incubation Center of Green Chemical Industrial Park in Yunxi District,Yueyang , Hunan Province. It has a standardized factory area of 1,000 square meters and a production capacity of 1,000 tons annually.

The company's existing technology R&D team of 12 members, using the "technology + service" marketing pattern, sales network covering Jiangsu, Zhejiang, Fujian, Guangdong and other places, With the most dedicated attitude, we focused on the needs of customers, providing solutions, generating more value for our clients. Also we committed toestablish a well-known brand in textile waterproofing agent industry in China, striving to be famous around the world in the future.