Welcome to Tianjin Xingyu Fertilizer Industry Co., Ltd. (XYF), a leading manufacturer and exporter of high-purity magnesium oxide fertilizer based in Tianjin, China. Established in 1993, XYF brings over three decades of production expertise to global agricultural markets, producing premium magnesium oxide fertilizer (CAS NO: 1309-48-4) alongside a comprehensive range of specialty plant nutrition products. We partner with agricultural distributors, bulk fertilizer blenders, and commercial farming enterprises worldwide to deliver factory-direct soil nutrition solutions.
Direct Mine Ownership & Purity Control: Standing apart from generic trading intermediaries, XYF operates its own high-grade magnesium ore mining base in Liaoning Province. Direct access to raw mineral deposits guarantees that our magnesium oxide fertilizer features high nutrient concentration, low heavy metal content, and consistent batch-to-batch quality.
Industrial Scale & ISO Quality Assurance: Backed by an ISO 9001-2015 quality management system, our facility operates modern processing lines capable of meeting large-scale commercial demand. Every shipment undergoes strict internal quality testing and is backed by SGS laboratory certifications.
Port Proximity & Ocean Shipping Logistics: Situated just 80 km from Tianjin Port and 15 km from major railway freight yards, our facility minimizes inland transit costs, enabling fast vessel loading and highly competitive landed pricing for international buyers.
As a full-service agricultural chemical manufacturer, XYF supplies high-solubility magnesium oxide fertilizer available in fine 200-mesh powder and uniform dust-free granules:
| Parameter | Agriculture Grade Specs |
| Main Content (MgO) |
≥85.0%
|
| Ignition Loss (IgL) |
≤8.0%
|
| Silicon Dioxide (SiO2) |
≤6.0%
|
| Calcium Oxide (CaO) |
≤9.58%
|
| Iron Oxide (Fe2O3) |
≤1.0%
|
| Aluminum Oxide (Al2O3) |
≤0.8%
|
| Available Forms |
200-Mesh Powder / Uniform Granules |
Chlorophyll Synthesis & Essential Plant Nutrition: Magnesium serves as the central atom of the chlorophyll molecule, making magnesium oxide fertilizer essential for driving photosynthesis, enzyme activation, and carbohydrate transport in crops.
Soil pH Regulation: Helps neutralize acidic soils while building long-term soil magnesium reserves for broadacre crops, fruit orchards, and cash crops.
Bulk NPK Fertilizer Blending: Ideal as a high-density magnesium additive for mechanical bulk blending with nitrogen, phosphorus, and potassium formulations.
Guided by our core principle—"Integrity builds quality, quality wins the market"—XYF exports magnesium oxide fertilizer and specialty mineral sulphate compounds to over 30 countries across Southeast Asia, Europe, North America, and Australia. We offer flexible OEM customization, private labeling, and heavy-duty moisture-proof packaging options, including 25kg PP bags, 50kg bags, and 1000kg/1250kg jumbo super sacks with full palletization. With fast production lead times of 7–15 days, we keep your commercial supply chain running smoothly.
Contact our commercial sales team today to request a factory-direct quote, Certificate of Analysis (CoA) documentation, and laboratory samples.
