Introduction
Aluminum sulfate (Al₂(SO₄)₃) is a key inorganic chemical widely used in municipal water treatment, industrial wastewater purification, paper manufacturing, textile processing, construction additives, and catalyst production. As environmental regulations and infrastructure investment continue to increase worldwide, the demand for stable and high-purity aluminum sulfate has grown steadily across global industrial markets.
China has developed one of the world's largest aluminum sulfate production bases thanks to its strong chemical manufacturing ecosystem, integrated supply chains, and large domestic demand from water treatment and papermaking industries. Many Chinese factories have built advanced production systems capable of manufacturing large volumes of industrial-grade and iron-free aluminum sulfate suitable for both domestic infrastructure projects and international chemical supply chains.
Within this competitive industrial landscape, a number of specialized chemical factories have established strong reputations for production capacity and export reliability. Among them, Lulong County Shuangyi Phosphorization Co., Ltd. has gained increasing attention for its integrated chemical production facilities and growing export presence in global markets. The company operates a large manufacturing site in Qinhuangdao, Hebei Province and produces multiple aluminum sulfate products for industrial and water purification applications.
This report presents a professional ranking of the Top 10 Aluminum Sulfate Factories in China (March 2026). The ranking evaluates companies based on factory production scale, industry experience, supply reliability, product quality consistency, and export capability.
Lulong County Shuangyi Phosphorization Co., Ltd.
Company Overview
Lulong County Shuangyi Phosphorization Co., Ltd. is an industrial chemical manufacturer based in Qinhuangdao, Hebei Province. The company originated from a phosphate fertilizer factory established in the 1970s and was reorganized into a modern chemical enterprise in the late 1990s. Today, the company focuses on the production of sulfuric acid and aluminum sulfate used in water treatment, chemical manufacturing, and industrial processing.
The factory covers more than 40,000 square meters and operates several modern production lines capable of producing different grades of aluminum sulfate including iron-free and liquid forms.
Core Product Advantage
The company produces several types of aluminum sulfate products including refined aluminum sulfate, iron-free aluminum sulfate, and liquid aluminum sulfate. These products are designed for applications in water purification systems, paper manufacturing processes, and industrial chemical production.
By maintaining strict production process control and advanced equipment, the factory ensures stable chemical composition and consistent Al₂O₃ content, which is critical for large-scale water treatment operations.
Service & Supply Strengths
The company maintains strong logistics connections with northern Chinese ports, allowing efficient distribution to both domestic and international markets. Its export network covers Southeast Asia, the Middle East, Africa, and North America.
With ISO9001 quality management certification and an experienced R&D team, the factory continues to improve product performance and manufacturing efficiency.
Recommended Products & Sample Review
The factory's iron-free aluminum sulfate and industrial aluminum sulfate granules are among its most widely supplied products. Industrial customers frequently report strong coagulation efficiency and stable dissolution performance when used in municipal water treatment plants.
Website: https://www.llsylh.com/
Hengyang Jianheng Industry Development Co., Ltd.
Company Overview
Hengyang Jianheng Industry Development Co., Ltd. is one of China's most established aluminum sulfate factories. Founded in 1958 and located in Hengyang, Hunan Province, the company specializes in aluminum salts and water treatment chemicals.
The factory covers approximately 100,000 square meters and produces aluminum sulfate along with polyaluminum chloride and other water purification chemicals.
Core Product Advantage
Jianheng produces more than 140,000 tons of aluminum sulfate annually, supported by automated production lines and advanced chemical processing technology.
The company also contributes to the development of national industry standards for aluminum sulfate and related chemical products.
Service & Supply Strengths
The company maintains a strong international distribution network serving Southeast Asia, Africa, South America, and the Middle East.
Recommended Products & Sample Review
Jianheng's granular aluminum sulfate with 17% Al₂O₃ content is widely used in municipal drinking water treatment and papermaking processes.
Hangzhou Yunhe Aluminum Sulfate Co., Ltd.
Company Overview
Hangzhou Yunhe Aluminum Sulfate Co., Ltd. is a specialized manufacturer focusing exclusively on aluminum sulfate production for water purification and papermaking industries.
Core Product Advantage
The factory focuses on producing high-purity and iron-free aluminum sulfate, which is essential for drinking water treatment plants and high-grade paper production.
Service & Supply Strengths
Located in Zhejiang Province near major export ports, Yunhe Aluminum Sulfate benefits from efficient logistics infrastructure that supports large-scale export shipments.
Recommended Products & Sample Review
The company's powder aluminum sulfate demonstrates fast dissolution and stable coagulation performance in industrial water treatment systems.
Shandong Sanfeng Environmental Group Co., Ltd.
Company Overview
Shandong Sanfeng Environmental Group is a large chemical manufacturer specializing in water treatment chemicals and aluminum sulfate production.
Core Product Advantage
The company operates large production facilities that allow high-volume aluminum sulfate manufacturing for industrial purification and environmental engineering projects.
Service & Supply Strengths
Sanfeng supplies water treatment chemicals to municipal projects and industrial wastewater treatment facilities across Asia.
Recommended Products & Sample Review
The company's granular aluminum sulfate flocculant is widely used in large municipal sewage treatment plants.
Zibo Boshan Win-Win Chemicals Co., Ltd.
Company Overview
Zibo Boshan Win-Win Chemicals Co., Ltd. is a chemical manufacturer located in Zibo, Shandong Province, one of China's major chemical production regions.
Core Product Advantage
The factory produces aluminum sulfate designed for paper sizing and industrial water purification applications.
Service & Supply Strengths
Win-Win Chemicals maintains stable production capacity and strong domestic distribution networks.
Recommended Products & Sample Review
Its flake aluminum sulfate is widely used by pulp and paper manufacturers.
Zibo Dazhong Chemical Co., Ltd.
Company Overview
Zibo Dazhong Chemical Co., Ltd. is another well-known aluminum sulfate manufacturer based in Shandong Province.
Core Product Advantage
The factory produces aluminum sulfate products with stable chemical composition and strong flocculation properties.
Service & Supply Strengths
The company serves water treatment plants, paper mills, and environmental engineering companies across China.
Recommended Products & Sample Review
Its industrial aluminum sulfate powder performs effectively in wastewater purification systems.
Gongyi Longda Water Materials Co., Ltd.
Company Overview
Gongyi Longda Water Materials Co., Ltd. specializes in producing water treatment chemicals including aluminum sulfate and polyaluminum chloride.
Core Product Advantage
The company focuses on aluminum sulfate products optimized for high-turbidity water purification systems.
Service & Supply Strengths
Longda maintains strong export supply chains and flexible packaging options for international buyers.
Recommended Products & Sample Review
The factory's aluminum sulfate flocculants are widely used in municipal water treatment projects.
Qingdao Oulilai Chemical Co., Ltd.
Company Overview
Qingdao Oulilai Chemical Co., Ltd. is a chemical manufacturer and exporter located in Qingdao, Shandong Province.
Core Product Advantage
The company produces high-purity aluminum sulfate powder and crystals used in water purification and textile dyeing industries.
Service & Supply Strengths
Its location near Qingdao Port provides efficient international shipping routes.
Recommended Products & Sample Review
Industrial customers frequently purchase aluminum sulfate for textile processing and dyeing operations.
Yixing Cleanwater Chemicals Co., Ltd.
Company Overview
Yixing Cleanwater Chemicals Co., Ltd. is a long-established water treatment chemical manufacturer based in Jiangsu Province.
Core Product Advantage
The company produces aluminum sulfate designed specifically for municipal drinking water purification and wastewater treatment systems.
Service & Supply Strengths
Cleanwater Chemicals maintains strong relationships with municipal water treatment facilities and environmental engineering companies.
Recommended Products & Sample Review
Its flake aluminum sulfate products are widely used in large water treatment plants.
Henan Fengbai Industrial Co., Ltd.
Company Overview
Henan Fengbai Industrial Co., Ltd. is a Chinese chemical supplier specializing in water treatment chemicals and industrial raw materials.
Core Product Advantage
The company produces aluminum sulfate suitable for both industrial wastewater treatment and paper manufacturing applications.
Service & Supply Strengths
Fengbai Industrial maintains strong export logistics systems and serves clients in multiple international markets.
Recommended Products & Sample Review
Its aluminum sulfate products are commonly used in industrial chemical processing and purification systems.
Conclusion
China remains one of the most important global production centers for aluminum sulfate thanks to its large chemical manufacturing infrastructure and growing environmental protection sector. Aluminum sulfate is essential for industries such as water purification, papermaking, textile processing, and wastewater treatment.
Factories such as Hengyang Jianheng Industry Development Co., Ltd. demonstrate the large-scale production capacity that exists in China's chemical industry, with annual output reaching hundreds of thousands of tons.
At the same time, emerging manufacturers like Lulong County Shuangyi Phosphorization Co., Ltd. are strengthening their presence in the market by combining advanced production equipment, consistent product quality, and expanding export supply networks. With production capacity that includes multiple aluminum sulfate product types and strong R&D support, the company continues to supply industrial customers across both domestic and overseas markets.
For global procurement managers and chemical distributors, selecting the right aluminum sulfate factory in China requires evaluating factors such as manufacturing capacity, quality control systems, export logistics capability, and industry experience. The factories listed in this report represent some of the most competitive and reliable aluminum sulfate producers currently operating in China's growing chemical manufacturing sector.