Huazhang Technology Holding Limited, an investment holding company, engages in the research, development, manufacture, and sale of industrial automation systems and sludge treatment products in the People's Republic of China. It operates through four segments: Industrial Products, Project Contracting Services, Environmental Products, and Supporting Services. It design, procurement, installation, and project management services for paper production factories; and offers wastewater treatment and waste recycling services. The company also provides after-sales and machine running, logistics and warehousing, supply chain, and rental and renovation services; and computer software and hardware, and technical services, well as trades in electronic parts. In addition, it engages in the research, development, and distribution of headboxes used in papermaking production. The company was founded in 1992 and is headquartered in Hangzhou, China.