MRGFESI.com | Ferrosilicon, Ferro Alloys & Refractory Materials Supplier

About MRGFESI

Gansu Mingruige Trading Co., Ltd. (formerly Gansu Wude International Trading Co., Ltd.) is a leading supplier of ferroalloys, non-ferrous metals, and refractory materials. Established in May 2000 and approved by the Gansu Provincial Bureau of Commerce, we specialize in the import and export of high-performance industrial materials.

With over two decades of experience, we serve clients across the steel, casting, and refractory industries, delivering consistent quality and reliable supply chains. Our product range includes Ferrosilicon, Ferro Silicon Magnesium, Microsilica Fume, Dead-Burned Magnesite, Magnesium Oxide, and more.

2000

Founded

50+

Global Clients

$Refractory materials$ Industrial packaging

Our Products

High-performance industrial materials for steel, casting, and refractory applications

Ferro Silicon (FeSi)

Used as a deoxidizer and alloying agent in steelmaking and iron casting. Ideal for low-carbon ferroalloy production.

• Si: 75%, 65%, 50%
• Low carbon content
• High purity
• Standard packaging: 1MT Jumbo Bags

Ferro Silicon Magnesium (Nodulizer)

Essential additive for producing ductile (nodular) cast iron. Promotes graphite spheroidization.

• Mg: 7-10%
• Si: 40-45%
• Ca: 1-2%
• Particle size: 5-25mm

Ferro Silicon Calcium

Customizable alloy used for deoxidation and inclusion modification in steel production.

• Si: 55-60%
• Ca: 28-32%
• Custom compositions available
• High reactivity

Micro Silica Fume

Ultra-fine pozzolanic material used in high-performance concrete and refractory castables.

• SiO₂: >92%
• Specific surface: 15-20 m²/g
• Bulk density: 200-300 kg/m³
• Supplied in 20kg bags or 1MT silos

Dead-Burned Magnesite

High-purity magnesia used in refractory bricks, monolithic linings, and furnace repair mixes.

• MgO: 90-98%
• Low Fe₂O₃ & SiO₂
• Grain sizes: 0-3mm, 3-5mm
• High bulk density

Magnesium Oxide (MgO)

Used in refractories, fertilizers, and environmental applications. High thermal stability.

• MgO: 85-98%
• CaO: <2%
• Particle size: 0-1mm
• Low moisture content

Ferro Manganese

Alloying agent for steel to improve strength, hardness, and wear resistance.

• Mn: 75-80%
• C: <7.5%
• Low sulfur & phosphorus
• Standard lump size

Non-Ferrous Metals

Including aluminum ingots, zinc, and copper for various industrial applications.

• Aluminum 99.7% min
• Zinc Ingots Special High Grade
• Copper Cathode A
• FOB or CIF delivery terms

Why Choose MRGFESI?

Quality Assurance

All products undergo strict quality control and chemical analysis to meet international standards (ISO, GB, ASTM).

Global Reach

Exported to over 30 countries with reliable logistics partners for sea, air, and land freight.

Custom Solutions

We produce to customer specifications including particle size, chemical composition, and packaging.

Frequently Asked Questions

What is Ferrosilicon used for?

Ferrosilicon is primarily used as a deoxidizer and alloying agent in steelmaking and iron casting. It helps remove oxygen from molten steel and improves mechanical properties.

Do you offer custom alloy compositions?

Yes, we can produce Ferro Silicon Calcium and other alloys according to customer specifications for chemical content, particle size, and packaging.

What are your standard packaging options?

We offer 25kg bags, 1MT jumbo bags, 20ft container bags, and bulk shipments. Custom packaging is available upon request.

How do you ensure product quality?

Every batch undergoes rigorous chemical analysis using spectrometers and physical testing. We provide Mill Test Certificates (MTC) with every shipment.

Get in Touch

Contact our sales team for product inquiries, quotes, and technical support.

Sales Representatives

Mr. Mark Guo: +86 138 9339 3322

Ring Zhang: +86 181 8953 5018

Email: info@cnmrg.com

Email: markguoo@gmail.com