- Business
- Tongxing Environmental Protection Technology Co., Ltd. (003027.SZ) provides environmental protection project general contracting services principally in China, focusing on ultra-low emission solutions for non-electric industries including steel, coking, building materials, power generation, chemicals, non-ferrous metals, waste incineration, and pulp and paper. The company offers comprehensive flue gas treatment engineering encompassing dust removal systems such as push/pull coke oven dust collection, coal charging/machine-side dust removal, coke dry quenching dust removal, coke oven shed dust removal, and coal blending/sieving/storage dust removal; desulfurization technologies including sodium carbonate SDA, sodium bicarbonate dry, calcium-based dry, ammonia, limestone-gypsum wet, and CFB processes; denitrification systems with low-temperature SCR catalysts branded Fangxin operating across 120-400C ranges for ultra-low (150-160C), low (160-220C), and mid-high temperature applications; low-temperature denitration equipment like parallel multi-bin and integrated dust-denitration units; desulfurization waste liquid salt extraction products; carbon dioxide capture, storage, utilization engineering and absorbents via its CCUS joint R&D center with Dalian University of Technology; and sodium-ion battery key materials including cathode materials, devices, and supporting 6GWh cell production. Founded in 2006 and headquartered at Building B10, Binhu Financial Port, Baohe District, Hefei, Anhui Province, the company holds specialized qualifications including Grade A environmental air pollution control design, Grade B chemical engineering design, Grade 1 environmental professional contracting, and pressure vessel/pipeline credentials; it employs 643 staff and serves domestic markets across over 20 provinces. In November 2025, Tongxing signed a 3.2 billion yuan investment framework agreement with Pingshan County People's Government in Sichuan Province for a project producing 100,000 tons annually of sodium-ion cathode materials (2 billion yuan investment) and 6GWh battery cells (1.2 billion yuan investment), advancing its new energy strategic transformation initiated with 2022 pilot production and mid-scale trials of sodium-ion cathode materials and cells targeting low-speed EVs and energy storage.