We implement 4 strict testing procedures from raw materials to finished products, using advanced automated production lines and adhering to international standards. Our dedicated QC team ensures every batch meets the highest purity and safety requirements.
We are a National High-Tech Enterprise with honors including Innovative SME, Specialized and New SME, Shandong Gazelle Enterprise, and certifications for quality, environment, and occupational health management systems (e.g., ISO 9001, ISO 14001).
Our mission is to safeguard plant safety and nutrition, contributing to human health and natural harmony. Our vision is to become a trusted, socially respected international leader in fine chemicals, specializing in sulfites and thiosulfates.
We export to 15+ countries and regions, offering comprehensive support including customs documentation, international logistics, and compliance with local regulations. Our multilingual team ensures smooth communication and after-sales service.
Yes, we specialize in customizing products based on client requirements. Our technical team collaborates with you to develop solutions for applications in agriculture, water treatment, photography, and more, ensuring optimal performance and compliance.
We pride ourselves on "zero delivery delay." With an annual capacity of 200,000+ tons and a robust logistics network, we ensure timely delivery tailored to your location and order size. Urgent orders are prioritized without compromising quality.
Ammonium sulfite ((NH₄)₂SO₃) is typically available as crystals and used in paper, water treatment, and environmental applications. Ammonium bisulfite (NH₄HSO₃) is a liquid solution with higher reducibility, ideal for pharmaceuticals, petroleum drilling, and food processing. Both are efficient reductants but differ in form and specific uses.
Products must be stored in cool, dry, and well-ventilated areas, away from acids and direct sunlight. Specific packaging (e.g., polyethylene-lined bags, drums) is used to prevent contamination. We provide detailed safety data sheets for each product.
Our products strictly adhere to relevant standards, such as HG/T 2784—2023 for industrial ammonium sulfite and HG/T 2785-2022 for ammonium bisulfite. We also follow GB/T19001-2016/ISO9001:2015 quality management systems, ensuring high purity, safety, and reliability for global customers.
Ammonium sulfite is widely used as a cooking aid in the pulp and paper industry to separate lignin and cellulose, as a dechlorinator and desulfurization agent in water and waste gas treatment, in food industry for caramel color production, and in environmental protection for aldehyde removal. Its versatility makes it essential for multiple sectors.
We are not only a leading producer of ammonium sulfite, but also the primary developer of industry standards for this product. Our ammonium sulfite exceeds 90% of industry benchmarks, with peak concentrations surpassing 92%. Through continuous innovation, we have resolved the long-standing issue of yellow discoloration in traditional production methods. Our advanced manufacturing process produces pure white ammonium sulfite with exceptional purity and impurity-free quality. When stored under specified conditions, this product maintains long-term stability.
We are a leading ammonium sulfite manufacturer with strong comprehensive strength in China, providing ammonium sulfite products that exceed the industry standard HG/T 2784—2023 "Industrial Ammonium Sulfite", covering two grades: 85% qualified products and 90% first-class products. To meet the feeding requirements of different customers, we offer 25kg kraft paper composite bag packaging, 25kg plastic bag and woven bag nested packaging, and 40kg plastic bag and woven bag nested packaging. If you have other packaging needs, please contact our staff for customized packaging.