High-Purity Kieserite Powder & Magnesium Sulphate Monohydrate Manufacturer

Tianjin Xingyu Fertilizer Co., Ltd. is an established manufacturer and global exporter of high-grade Kieserite powder, specialized in supplying top-tier agricultural chemicals for worldwide distribution. Supported by our modern 20,000 m² industrial manufacturing complex and an annual capacity reaching 300,000 metric tons, we supply high-purity Magnesium Sulphate Monohydrate powder to agricultural distributors, fertilizer formulators, soil amendment producers, and industrial buyers across the globe.

The Role of Kieserite Powder in Soil & Plant Nutrition

Kieserite powder (MgSO4·H2O powder) is a natural, mineral-based nutrient source designed for efficient magnesium and sulfur supplementation. Magnesium serves as the vital central component of chlorophyll molecules, directly energizing photosynthesis, enzyme activation, and carbohydrate translocation. Sulfur plays a pivotal role in plant amino acid synthesis, protein buildup, and stress resistance.

Unlike coarse granules, the fine mesh structure of Kieserite powder provides increased surface area contact when mixed into soils or raw fertilizer formulations. It delivers a balanced, steady-release nutrient supply that prevents premature nutrient leaching, making it particularly valuable in acidic soils, sandy terrains, and high-rainfall tropical plantation areas.

Key Product Features & B2B Advantages

• Superior Fineness & Uniformity: Finely milled (80-100 mesh) to ensure smooth blending, quick soil dispersion, and excellent integration with other powdered fertilizer materials.

• Controlled Bioavailability: Delivers sustained magnesium and sulfur availability without the rapid leaching risks associated with fully soluble salts in heavy rain regions.

• High Nutrient Density: Boasts high concentrations of active Magnesium Oxide (MgO) and Sulfur (S), significantly reducing ocean freight cost per unit of pure nutrient delivered.

• Rigorous Quality Assurance: Manufactured strictly under ISO 9001 certified protocols. Every export shipment includes a thorough Certificate of Analysis (COA) and supports third-party verification by SGS, BV, or CCIC.

Technical Specifications Overview

• Product Name: Kieserite Powder / Magnesium Sulphate Monohydrate Powder (Agricultural & Industrial Grade)

• Chemical Formula: MgSO4·H2O

• Total Magnesium Oxide (MgO): 25% - 27% Min

• Water Soluble MgO: 20% - 22% Min

• Sulfur (S) Content: 16% - 20% Min

• Physical Appearance: Off-White to Pure White Fine Powder

• Mesh Size / Fineness: 80 - 100 Mesh (Customizable upon request)

• Packaging Solutions: 25kg, 50kg PP/PE woven bags with inner liner, 1000kg/1250kg Jumbo Bags, Custom OEM Packaging available

Widespread Applications Across Agricultural Markets

Our fine agricultural Kieserite powder is extensively utilized across multiple agricultural and industrial sectors:

• Fertilizer Blending & Manufacturing: Serves as an ideal raw powder material for compounding high-grade NPK fertilizers, organic-inorganic compound fertilizers, and soil conditioners.

• Plantations & Base Application: Widely applied in oil palm, coffee, tea, rubber, sugarcane, and fruit orchards as a soil-applied base nutrient to combat magnesium chlorosis.

• Soil Conditioning & Acid Soil Reclamation: Helps correct soil magnesium depletion and stabilizes soil pH in heavily cultivated agricultural lands.

Partner with a Trusted Global Kieserite Powder Supplier

By purchasing bulk Kieserite powder directly from Xingyu, you benefit from competitive factory-direct pricing, consistent quality, customized moisture-proof packaging, and reliable maritime export logistics. We regularly export to key agricultural regions across Southeast Asia, Latin America, Africa, and Europe.

Contact our international sales team today to request free product samples, technical datasheets, or a competitive wholesale quotation!