Henan Danqing Chemical Co., Ltd, established in 1979 in Zhengzhou, China, is a manufacturer of chemical products and industrial fabrics. The company operates with 201-300 employees and has fixed assets exceeding 50 million yuan. Initially specializing in Maleic Anhydride and Fumaric Acid, the company has an annual capacity of 30,000 tons for Maleic Anhydride and 5,000 tons for Fumaric Acid. In 2009, Henan Danqing Chemical expanded its business by acquiring a polyester fabric factory, enhancing its product portfolio to include industrial fabrics such as polyester forming fabrics, polyester dryer fabrics, pulp washing fabrics, polyester spiral fabrics, and sludge dewatering fabrics. These fabrics, primarily used in the paper-making industry, have an annual capacity of over 150,000 square meters. The company utilizes advanced technology, including micro-computer control for main processes, and adheres to ISO 9001 quality standards. Henan Danqing Chemical has established a well-functioning international supply chain and marketing system, serving markets in South America, India, the Middle East, Southeast Asia, and Europe.