Company profile
Hunan Senhy Environmental Protection Technology Co., Ltd. (brand: Senhy) was founded in 2001. The plant is located in the provincial high-tech industrial development zone of Luxi County, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Province. The company is a national High-tech Enterprise whose core business is the comprehensive utilisation of zinc-bearing residues and the deep processing of non-ferrous metals.
Published figures: registered capital RMB 51.8 million, site area 135,000 m², fixed assets over RMB 243 million and more than 390 employees; cumulative tax payments since 2015 amount to RMB 125 million.
Business lines
Zinc-bearing residues (including hazardous waste) are treated by hydrometallurgy, electro-winning and casting to produce high-purity electrolytic zinc (zinc ingots) and zinc-aluminium alloys. Zinc sulphate monohydrate (feed grade), cadmium billets and germanium dioxide are recovered as co-products, while smelting by-products are processed into fly ash and aluminium alloys. The result is a closed loop of compliant hazardous-waste treatment — secondary metal recovery — deep processing.
- Secondary non-ferrous metals: zinc ingots (high-purity electrolytic zinc), zinc-aluminium alloy, aluminium alloy ingots
- Chemicals and feed additives: zinc sulphate monohydrate (feed grade)
- Minor metals: cadmium billets, germanium dioxide
- Resource utilisation: fly ash
Technology platforms
According to the company website, three provincial platforms and one prefecture-level platform are in place: a Hunan Provincial Enterprise Technology Centre, a Hunan Provincial Engineering Technology Research Centre for Comprehensive Utilisation of Zinc Residues, and a Hunan Provincial Engineering Technology Centre for Hazardous Waste Treatment, plus a Xiangxi prefecture-level research centre for zinc residue utilisation. The company holds 9 invention patents, with a further 4 applications having passed substantive examination.
Qualifications and honours
- National High-tech Enterprise
- Hunan Provincial Enterprise Technology Centre (Hunan DRC, May 2017)
- Hunan New Material Enterprise (certified June 2019)
- Xiangxi Smart Manufacturing Demonstration Workshop
- Hunan Contract-honouring and Credit-worthy Enterprise (2019); AAA credit rating
- Hunan Resource Comprehensive Utilisation Enterprise; Hunan Circular Economy Pilot Demonstration Enterprise
- One of Hunan’s 100 key energy-saving and environmental protection enterprises; Hunan New Material Enterprise; Hunan employment and poverty-alleviation base
- Hunan Well-known Trademark (2023); China Famous Trademark and China Famous Brand (2017)
Compliance and environment
The company holds a Hazardous Waste Operation Licence and collects, stores, utilises and disposes of zinc-bearing hazardous waste within the licensed scope. Information on solid waste prevention and control is disclosed in line with the PRC Law on the Prevention and Control of Environmental Pollution by Solid Waste. The workshop has been recognised as a Xiangxi Smart Manufacturing Demonstration Workshop, with automated control and online monitoring in production.
Location and contact
Office: 2/F Xinhai Building, Luxi County, Hunan (248 Jianshe Road, Baisha Town). Plant: Luxi County High-tech Industrial Development Zone (319 National Road, Lianyuxi, Wuxi Town), Xiangxi, Hunan. Luxi sits on National Road 319 along the Yuan River, with road access to Changsha, Huaihua and Changde, and onward export via Changde or Yueyang Chenglingji port.
