As a subsidiary environmental protection enterprise of the chemical fiber company's waste gas recycling, the company is a circular economy， energy-saving and environmental protection enterprise that is supported by the state.
COMPANY PROFILE
Self-operated factoy, integrating production and sales.
Rich production experience and a better understanding of customers.
Sodium Hydrosulfide
| Inspection items | Testing Result | Testing Standard |
| Sodium Hydrosulfide | 70.8% | GB/T 23937-2020 |
| Sodium sulfide | 2.21% | GB/T 23937-2020 |
| Fe | <0.002% | GB/T 23937-2020 |
Sodium Sulfide
| Inspection items | Testing Result | Testing Standard |
| Sodium Hydrosulfide | 70.8% | GB/T 23937-2020 |
| Sodium sulfide | 2.21% | GB/T 23937-2020 |
| Fe | <0.002% | GB/T 23937-2020 |
Customers' recognition numerous honors
Main Products
The company has stable and reliable product quality with an annual output of 68,000 tons of 70% flake sodium sulfide and 80,000 tons of 60% flake sodium sulfide.
About Us
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.
As a chemical production enterprise focusing on the R&D, production and sales of sodium hydrosulfide and sodium sulfide, Tangshan Fengshi Chemical Co., Ltd. has stable product quality and its output ranks among the top in the country. “Fengshi Quality” is deeply favored by customers and has won wide trust in the industry with its professional services.
Years Of Experience
Export Countries
Nahs (70%, flake) Annual Production
Na2s (60%, flake) Annual Production
Our Certificate
A company accredited by ISO:
ISO 9001 Conformity of Quality Management System Certification
ISO 14001 Conformity of Environmental Management System Certification
ISO 45001 Conformity of Occupational Health and Safety Management System Certification
Company Advantage
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As a subsidiary environmental protection enterprise of the chemical fiber company's waste gas recycling, the company is a circular economy， energy-saving and environmental protection enterprise that is supported by the state.
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The company's raw materials come from the hydrogen sulfide gas released during the production of chemical fiber viscose fiber.
The company's raw materials come from the hydrogen sulfide gas released during the production of chemical fiber viscose fiber.
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The company has passed ISO9001 quality management system, ISO14001 environmental management system and ISO45001 occupational health and safety management system certification.
The company has passed ISO9001 quality management system, ISO14001 environmental management system and ISO45001 occupational health and safety management system certification.
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Tangshan Fengshi Chemical Co., Ltd. has precisely controlled the quality of sodium hydrosulfide products, enabling all the indicators of its products to reach a relatively high level among similar products at home and abroad.
Tangshan Fengshi Chemical Co., Ltd. has precisely controlled the quality of sodium hydrosulfide products, enabling all the indicators of its products to reach a relatively high level among similar products at home and abroad.
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Tangshan Fengshi Chemical Co., Ltd. has established long-term and stable cooperative relations with many well-known domestic and international companies.
Tangshan Fengshi Chemical Co., Ltd. has established long-term and stable cooperative relations with many well-known domestic and international companies.
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Tangshan Fengshi Chemical Co., Ltd. will continue to uphold the concept of "innovation-driven, green development".
Tangshan Fengshi Chemical Co., Ltd. will continue to uphold the concept of "innovation-driven, green development".
Application
The products are widely used in copper mining and molybdenum ore beneficiation reagents, printing and dyeing, leather, pharmaceuticals and wastewater treatment and other industries, which are deeply trusted by customers.
Latest News
06/04/2025
Tangshan Fengshi Achieved A New Breakthrough In Performance In 2024 And "Fengshi Quality" Won Continuous Praise From Customers
In recent years, with the continuous development of copper mining projects around the world, the market demand for sodium hydrosulfide has increased sharply. However, the quality of sodium hydrosulfide from various manufacturers is uneven and the output is unstable, which is a troublesome matter for
06/04/2025
Tangshan Fengshi Achieved A New Breakthrough In Performance In 2024 And "Fengshi Quality" Won Continuous Praise From Customers
In recent years, with the continuous development of copper mining projects around the world, the market demand for sodium hydrosulfide has increased sharply. However, the quality of sodium hydrosulfide from various manufacturers is uneven and the output is unstable, which is a troublesome matter for
06/04/2025
Tangshan Fengshi Achieved A New Breakthrough In Performance In 2024 And "Fengshi Quality" Won Continuous Praise From Customers
In recent years, with the continuous development of copper mining projects around the world, the market demand for sodium hydrosulfide has increased sharply. However, the quality of sodium hydrosulfide from various manufacturers is uneven and the output is unstable, which is a troublesome matter for