Dalian Fuzhouwan Salt Field Wudao Chemical Factory is located in Pikou Subdistrict, Pulandian District, Dalian City, Liaoning Province. It is a wholly owned subsidiary of Dalian Yanhua Group Co., Ltd., established in 2003. The company operates in the marine resource comprehensive utilization and fine chemical manufacturing sectors—industries explicitly encouraged by the Chinese government. Currently, it is in a development phase emphasizing both stable operations and technological upgrading. Its registered capital is RMB 50 million, and its corporate status is “in existence.”  

The company’s core business focuses on the research and development, production, and sales of marine chemical products. Its key products include industrial bromine (annual capacity: 3,000 tons), sodium bromide, calcium bromide, and magnesium chloride—bromine- and magnesium-based inorganic chemical raw materials widely applied in flame retardants, pharmaceutical intermediates, oilfield auxiliaries, and water treatment chemicals. Its core technology is based on a counter-current multi-stage air-blowing–acidification–absorption–purification process chain, featuring proprietary intellectual property rights in efficient enrichment of marine brine and low-temperature distillation for bromine extraction. The company holds one invention patent titled “A Method for Continuous Bromine Extraction from Bittern Seawater” (Patent No.: ZL201810294567.3) and four utility model patents, totaling five patents. Its bromine recovery rate reaches 96.8%, exceeding the industry average of 92%; its comprehensive energy consumption per unit product is reduced by 18.3% compared to traditional processes.  

The company has obtained ISO 9001:2015 Quality Management System Certification (Certificate No.: 00122Q31234K5) and the “National Industrial Product Production License” (XK13-014-00128). Its bromine products comply with the national standard GB/T 1280-2021 and passed the Clean Production Audit Verification conducted by the Liaoning Provincial Department of Ecology and Environment in 2024.  

Notable achievements include supplying customized bromide raw materials to listed companies such as Jiangsu Yak Technology Co., Ltd. and Shandong Tian’an Chemical Co., Ltd.; participating in Sinopec Shengli Oilfield’s “Domestic Substitution of High-Density Calcium Bromide Kill Fluid” project (2023–2025), where its supplied calcium bromide solution meets API RP 13I standards; and jointly establishing the “Joint Laboratory for High-Value Utilization of Marine Brine Resources” with Dalian University of Technology in 2024, undertaking the Liaoning Provincial Key R&D Program project titled “Key Technologies for Synergistic Extraction of Bromine and Magnesium from Low-Grade Brine.”  

Its products are exported to South Korea, India, and Southeast Asian countries, with export revenue amounting to approximately RMB 21 million in 2025, primarily shipped via Dalian Port through foreign trade agents, conforming to SN/T 2107-2022 and REACH regulation pre-registration requirements. Domestically, its products serve 23 downstream enterprises across Liaoning, Shandong, Jiangsu, and Zhejiang provinces, achieving a customer repeat-purchase rate of 86.4%. Public records indicate that the company does not hold engineering design qualifications, EPC general contracting capability, or overseas branches; its primary cooperation models include raw material supply, technology licensing, and joint R&D.