Beijing Hongyang Zidong Environmental Technology Co., Ltd. (formerly Beijing Zidong Environmental Water Treatment Chemicals Factory) is located in Changziying Town, Daxing District, Beijing. Established in 2001 with a registered capital of 30 million yuan, the company now boasts total assets of 52 million yuan and employs 60 people, including 12 research and development staff. Initially focused on the production and operation of water treatment chemicals, the company now primarily engages in the production and supply of "environmental water treatment chemicals," reverse osmosis membrane scale inhibitors, and "coal water slurry additives" for clean fuel coal water slurry, a key nationally promoted technology. These projects have achieved large-scale production. Environmental water treatment chemicals remain one of the company’s leading products, with an annual production capacity of 8,000 tons and a well-established technical service team. The product range is extensive and diverse, covering urban sewage treatment, industrial wastewater treatment, industrial cooling circulating water treatment, and chemicals for large-scale ultrapure water treatment. Products are sold nationwide. Over the years, the company has continuously developed new products, all of which hold strong sustainable development prospects in the domestic market. Key technologies are supported by the company’s own intellectual property rights and invention patents, including: - A scale inhibitor for reverse osmosis membranes and its preparation method (ZL 2009 1 0080251.4) - A multi-component composite dispersant for coal water slurry and its application (ZL 2009 1 0081375.4)