China is one of the world’s largest producers of sodium hydrosulfide (NaHS).
The industry is relatively concentrated and strongly influenced by:

• Availability of upstream raw materials (sulfur and caustic soda)
• Regional mining activity distribution
• Leather tanning and textile dyeing industries
• Export demand for mineral flotation reagents

Between 2025–2026, several manufacturers dominate the market through production capacity, technology level, and downstream industry integration.

Below are widely recognized major suppliers (no ranking order).

Top Sodium Hydrosulfide Suppliers in China

Shanghai Baijin Chemical Group Co., Ltd.

Industry leader with strong flotation reagent technology, widely used in copper and molybdenum mining sectors.

Shanghai Baijin Chemical Group Co. Ltd is a large-scale group company specialized in carbon disulfide , technical research and development, and developing sulfur-based fine chemicals, headquartered at Shanghai Lujiazui International Financial and Trade Center, with the development history of nearly 30 years since establishment in 1988.

Website:https://baijinchemical.com/

Address:26F, No.707, Zhangyang Road, Pudong New District, Shanghai, China

COTEC Chemical

Welcome to COTEC, your go-to place for Sodium Hydrosulfide (NaHS, CAS No.: 16721-80-5) that fit your needs just right. With a rich history spanning over eight years, we have earned a reputation synonymous with quality, reliability, and customer satisfaction in the NaHS industry.

Website:https://sodiumhydrosulfide.com/

Address:Qinyang Industrial Cluster District, Jiaozuo City, Henan Province, China.

Shandong Efirm Chemical

Established in 2011, EFIRM is a high-tech enterprise specializing in organic sulfur chemicals and new optical materials. It has successively won national honorary titles including National High-tech Enterprise, National Specialized and Sophisticated “Little Giant” enterprise, National Single-product Champion Manufacturing Enterprise, National Green Factory, and National Enterprise Technology Center.

Website:https://www.yifenggufen.cn/en/

Address:Tower D, Zhitai Plaza, Boxing County, BinzhouCity, Shandong Province, China

Luxi Chemical Group

As a trusted manufacturer integrating R&D, production, and global sales, Luxi Chemical steadfastly adheres to the principle of “Sincerity to customers, integrity in quality” as the cornerstone of business operations. 

Website:https://www.sdluxichemical.com/

Address:Huarun Building, SouthIndustrial Road, Jinan City,Shandong Province, China

Gansu Jinshi Chemical

  Gansu Jinshi Chemical Industry Co.,LTD.(JSCIC ) is a private enterprise with a total of 21 million yuan assets. It runs a wide scope of business, ranging from Sodium Bichromate, Chromic Anhyd -ride, Chrome Oxide Green, Sodium Sulphide, Aluminium Hydroxide, Chromium Alloys to licorice roots and sprinkling machine.

Tianyuan Chemical

Shangdong Tianyuan Chemical Co.,Ltd was established in 1989，our corporation is based in Deping Industrial Park of Linyi County in Shangdong.
Tianyuan is currently the largest high level of automation of rubber oil production base in North and East China.

Website:http://www.sdtyhg.com/

Address: Haifeng garden, No.2, Haiqing Road, Qingdao, Shandong

Tangshan Fengshi Chemical

Tangshan Fengshi Chemical Co., Ltd. was established in 2011. It is located in Tangshan nanpu Economic Development Zone, in the core area of the Bohai Bay Economic Circle. The company is only 50 kilometers away from the Tianjin Port, which is the largest port in the north of China. Hence, the enterprise has a superior geographical location and convenient transportation.

Website:https://www.tsfengshichem.com/

Address: East side of West Outer Ring Road, Nanpu Development Zone, Tangshan City, Hebei Province, China

Shenzhou Jiaxin Chemical

Shenzhou Jiaxin Chemical Co., Ltd. is located in the beautiful Qianmolou Industrial Zone, Shenzhou City, Hengshui City. The company was founded in 2004 and covers an area of 270000 square meters with 800 employees and a registered capital of 0.1 billion yuan. The company produces 100000 tons/year of precipitated barium sulfate, 60000 tons/year of industrial sodium sulfide, 30000 tons/year of strontium carbonate and 10000 tons/year of strontium chloride. 

Website:http://en.hebeijiaxin.com/

Address: Qaotou Industrial Zone, Shenzhou City, Hebei Province, China

Yindu Chemical

Henan Yinzhidu Environmental Protection Technology Co., Ltd. was founded in 1996. National high-tech enterprises, specialized and innovative, AAA credit enterprises. With an annual output of 20,000 tons of ammonium thiocyanate and 12,000 tons of sodium thiocyanate, the company has more than 300 employees. The head office covers an area of 60,000 square meters (owned by itself) with a construction area of 6,350 square meters. Self-built three production bases in Shandong, Shanxi and Anhui to strictly guarantee the quality of raw materials for products.

Website:https://en.yinduchem.com/

Address:Industrial road west,186, Qixian County, Henan Province, 456750 ,China

Tianjin Ruister

TIANJIN RUISTER INTERNATIONAL CO., LTD is a comprehensive company integrated of production and trade. Main products are sodium sulphide and sodium hydrosulfide. Ruister was established in 2005 years and it is located in Tianjin city. It enjoys superior geographical location relying on Tianjin harbor.

Website:https://www.ruisterchem.com/

Address:Room 406, Chuangzhi Building 482, DongmanZhong Road, Eco-City, Tianjin, China

How to Choose the Right NaHS Product

Selecting the correct sodium hydrosulfide depends on transportation distance, application industry, and purity requirements.

1. Product Form Selection

Solid Flakes (70%)

Best for export and long-distance shipping:

• Lower freight cost
• Longer shelf life
• Safer storage and handling

Liquid NaHS (32%–43%)

Best for local industrial supply:

• Ready to use
• No dissolving required
• Reduced labor handling cost

2. Purity Requirements by Industry

Mining flotation

• Active sulfide content more important than color

Textile and leather

• Low iron content to prevent staining

Fine chemicals & pharmaceutical intermediates

• High purity and strict impurity control

In general, light-yellow or white flakes indicate higher purity levels.

3. Safety & Certification Verification

Sodium hydrosulfide is classified as a Class 8 corrosive hazardous chemical.

Before purchasing, verify:

• Hazardous Chemical Production Safety License
• Dangerous goods transportation certification
• Export packaging compliance (UN drums or bags)
• MSDS and COA documentation

Purchasing Recommendations for Importers

When sourcing NaHS from China, international buyers should prioritize:

• Stable sulfide content consistency
• Moisture control during shipment
• Anti-leak packaging protection
• Proximity to major ports
• Experience in mining or leather supply chains

In most cases, long-term supply stability is more valuable than choosing the lowest price supplier.

Conclusion

China remains the dominant global supplier of sodium hydrosulfide due to abundant raw materials, large-scale production, and strong industrial demand.

For importers and industrial users, the right supplier should be evaluated based on:

• Product form (flake or liquid)
• Purity requirements
• Safety certification
• Logistics reliability

A professional sourcing strategy ensures stable quality, safer transportation, and long-term cost efficiency.