Magnesium Oxide China has become the global hub for industrial MgO production. China produces nearly 60–65% of the world’s magnesium oxide, supported by massive magnesite reserves in Liaoning Province. According to the China Geological Survey, China’s magnesite reserves exceed 6.8 billion tons, representing a significant portion of global supply.
However, for procurement managers and decision-makers, the challenge is no longer just finding a supplier—it is verifying stability. With shifting environmental regulations and energy costs in major hubs like Liaoning, choosing the right magnesium oxide manufacturers requires a technical understanding of the current market. This guide provides a direct look at the top-performing suppliers and the critical factors affecting magnesium oxide price and quality today.
Pure magnesium oxide powder (MgO CAS 1309-48-4), processed for high thermal conductivity and chemical stability.
Are you prepared to vet magnesium oxide manufacturers based on their 2026 environmental compliance and technical output, or are you risking your production line on outdated supplier lists? For companies looking to source reliable chemical materials from Asia, working with experienced sourcing partners can reduce procurement risks. Learn more about our global sourcing services on our CAMAL Group homepage.
MgO CAS 1309-48-4: Magnesium Oxide China Technical Specifications
Before selecting a supplier, it is essential to define the technical requirements of your cargo. MgO CAS 1309-48-4 is the standard identifier used to ensure grade consistency across global borders.
| Technical Property | Value / Detail |
| Magnesium oxide formula | MgO |
| Magnesium oxide molar mass | 40.3044 g/mol |
| Common Forms | Powder, Granular, Briquettes |
| Melting Point | 2,852°C (5,166°F) |
| Density | 3.58 g/cm³ |
Technical Specifications of the Mgo
High Purity MgO 99% magnesium oxide powder
Pure magnesium oxide is characterized by high thermal conductivity and chemical stability, making it essential for high-performance industrial applications including refractory linings, electrical insulation, and advanced ceramics.
Top 5 Manufacturers of Magnesium Oxide and High Purity Magnesia in China.
China’s MgO industry is concentrated in Liaoning Province, home to the world’s largest magnesite reserves. These five companies represent the most reliable Magnesium oxide manufacturers for the 2026 market.
A) Haicheng Magnesite Group Co., Ltd. (HaiMag)
As a dominant producer, HaiMag is the “Jennmar equivalent” of the MgO world, operating vertically integrated mines.
-
- Founded: Over 70 years of production history.
- Headquarters: Haicheng, Liaoning Province.
Core Products:
-
- Fused Magnesite (FM)
- High-purity Dead Burned Magnesite (DBM)
- Caustic Calcined Magnesite Powder (CCM)
- Magnesium oxide powder.
B) Hebei Meishen Technology Co., Ltd.
Meishen is a specialized magnesium oxide manufacturer focusing on high-end chemical and pharmaceutical applications.
-
- Founded: 2003 (Predecessor with 30+ year history).
- Headquarters: Xingtai, Hebei Province.
Core Products:
-
- High Purity MgO 99%
- Pure magnesium oxide
- Magnesium Carbonate
- Magnesium Sulfate for medical and food industries.
C) Dalian Datiehao Chemical Co., Ltd.
A premier manufacturer specializing in the electrical insulation sector.
-
- Founded: 1994.
- Headquarters: Dalian, Liaoning Province.
Core Products:
-
- High-Temperature Electrical Grade MgO
- Medium-Temperature Moisture-Proof MgO
- High-Speed Filling MgO Powder
- Specialized Refractory Fillers
D) CHIMAG (Chimagtech)
A prominent integrated manufacturer and supplier known for high-grade technical MgO solutions.
-
- Founded: Established with over 30 years of manufacturing experience.
- Headquarters: Yingkou, Liaoning Province.
Core Products:
-
- Electrical Grade MgO
- Medical Grade MgO
- Fireproof Cable Grade MgO
- Magnesium oxide for sale for industrial remediation.
E) Yingkou Magnesite Chemical Ind (Group) Co., Ltd.
A leading producer and global exporter, particularly dominant in the agricultural and chemical sectors.
-
- Founded: 1999 (as a private shareholding group).
- Headquarters: Dashiqiao (“The Magnesite Metropolis”), Liaoning Province.
Core Products:
-
- Magnesium Sulfate (Kieserite)
- Industrial grade MgO 90-95%
- Magnesium Fertilizer
- Refractory materials.
When vetting these suppliers, it is vital to determine if they are the primary producer or a middleman. To ensure you are making the right choice for your supply chain, you can read our guide on the differences between a Manufacturer V/S Trader.
Interested in Looking for Chemical Sourcing? Contact Us Now!
WhatsApp Us for Free a Consultation
Magnesium Oxide Price Comparison: Manufacturer Capacity & Purity
| Manufacturer | Focus Grade | Best Application | Purity Range |
| HaiMag | Refractory Grade | Steel & Smelting | 90% – 98% |
| Meishen Tech | Pharma/Battery Grade | Electronics & Medicine | 98% – 99.5% |
| Datiehao Chemical | Electrical Grade | Heating Elements | 92% – 97% |
| CHIMAG | Industrial/Technical | Cables & Heat Transfer | 90% – 99% |
| Yingkou Magnesite | Chemical/Agri Grade | Fertilizer & Chemicals | 85% – 95% |
Table showing the Comparison between the top 5 Mgo manufacturers
Types of Magnesium Oxide: CCM, DBM, and FM Production
Selecting the right types of magnesium oxide is the most critical step in ensuring your project’s performance. The difference lies in the temperature of the magnesium oxide manufacturing process.
-
- Caustic Calcined Magnesia (CCM): Calcined at 700°C–1000°C. It is highly reactive and serves as the industry standard for magnesium oxide board manufacturers and agricultural soil treatments.
Reactive caustic calcined magnesia CCM powder for magnesium oxide board manufacturers.
-
- Dead Burned Magnesia (DBM): Calcined at 1500°C–2000°C. It is chemically inactive and essential for magnesium oxide brick manufacturing and steel furnace linings.
Chemically inactive Dead Burned Magnesia DBM for magnesium oxide brick manufacturing.
- Dead Burned Magnesia (DBM): Calcined at 1500°C–2000°C. It is chemically inactive and essential for magnesium oxide brick manufacturing and steel furnace linings.
-
- Fused Magnesia (FM): Created in electric arc furnaces at temperatures exceeding 2800°C. It offers the highest thermal conductivity and purity for extreme industrial environments and high-end heating elements.
Ultra-high purity Fused Magnesia FM for high-end heating elements and thermal conductivity.
Why Sourcing from Magnesium Oxide China Suppliers Saves Cost
For B2B buyers in 2026, sourcing Magnesium Oxide China offers strategic advantages that regional distributors often cannot match:
-
- Raw Material Security: With the world’s largest magnesite deposits located in Liaoning, Chinese factories have immediate access to ore. This proximity drastically reduces the magnesium oxide cost China by eliminating inland raw material freight.
- Niche Specialization: The industrial ecosystem in China is highly matured. Whether you are searching for sodium magnesium oxide battery manufacturers or specialized magnesium oxide cement suppliers, you can find a factory that specializes in your specific grade rather than a “generalist” trader.
- Optimized Lead Times: By bypassing middleman distributors, direct partnerships with Mgo suppliers in China can reduce delivery windows by 30-50%, keeping your project on schedule.
Successful procurement depends on partnering with experienced sourcing teams that understand manufacturing ecosystems. Our expertise in Chemical Sourcing From China helps international buyers secure reliable suppliers while maintaining quality and cost efficiency.
Check out the video from Hebei Meishen Technology, a leader in the field, showcases the precision required for High Purity MgO 99% production.
Quality control team inspecting magnesium oxide manufacturing process at a factory in China.
Shipping Pure Magnesium Oxide Powder: Packaging & Logistics
Because MgO is highly hygroscopic (moisture-absorbent), packaging is your primary defense against quality degradation. Improper handling can turn pure magnesium oxide into useless, caked material before it reaches your site.
Packaging Protocol
-
- Moisture-Proof Liners: We utilize high-strength 1.25-ton jumbo bags equipped with double-layered PE (Polyethylene) inner liners.
- Sealed Protection: For High Purity MgO 99%, vacuum-sealed packaging is used to prevent any interaction with atmospheric CO2 or moisture.
- Palletization: Every shipment is secured on heat-treated or plastic pallets, ensuring stability during the multi-modal journey from factory to mine or plant.
High-quality fireproof boards, a primary export for magnesium oxide China.
Shipping & Logistics by MgO China Suppliers
The magnesium oxide price is only half the story; logistics efficiency completes it.
-
- Container Optimization: MgO is dense. We calculate precise loading patterns to maximize container weight capacity—often up to 26-28 tons per 20ft container—ensuring you get the lowest possible freight cost per ton.
- Full Documentation: Every shipment includes Mill Test Certificates (MTC) and 2026 MOFCOM-compliant export licenses required for all Magnesium oxide China exports.
Typical timelines include:
-
- Production: 7–14 days
- Quality inspection and packaging: 3–5 days
- Ocean freight: 2–4 weeks depending on destination
Buyers sourcing high purity MgO 99% may experience slightly longer production times due to stricter processing requirements.
Bulk magnesium oxide packed with PE liners to ensure the magnesium oxide price remains valuable by preventing moisture damage during shipping.
From specialized catalysts to bulk industrial reagents—if it’s a chemical your business needs, we have the solution delivered.
How to Verify Magnesium Oxide Manufacturers in China
Sourcing magnesium oxide China products can reduce costs, but choosing the right supplier is important. China has many magnesium oxide manufacturers, producing everything from industrial grade MgO 90–95% to high purity MgO 99%. Buyers should verify a few key factors before selecting magnesium oxide suppliers.
1. Check Product Quality
Confirm specifications for MgO CAS 1309-48-4, including purity levels like industrial grade MgO 90–95%, chemical composition, and product form such as magnesium oxide powder.
2. Review Manufacturing Capability
Reliable MgO suppliers should have strong production capacity, modern facilities, and experience in the magnesium oxide manufacturing process.
3. Verify Certifications and Pricing
Check documents like ISO certification, SGS reports, and compare magnesium oxide price China to ensure stable supply and reasonable magnesium oxide cost China.
Inspection of the magnesium oxide manufacturing process to ensure high-quality MgO 90-95% production
FAQ about Magnesium Oxide
1. Who is the largest producer of magnesium in the world?
China is the undisputed leader, producing over 70% of the world’s magnesium and magnesium oxide. The industry is primarily centered in the Liaoning province, which holds the largest magnesite reserves on the planet.
2. Who are the top manufacturers of magnesium oxide in China?
The market is led by high-capacity Tier-1 factories including Haicheng Magnesite Group (HaiMag), Jiachen Group, and Hebei Meishen Technology. These companies are the primary “Mgo China” hubs for global export.
Magnesium oxide white powder, showcasing the fine texture and pure appearance of MgO CAS 1309-48-4
3. What is the current magnesium oxide price in China?
The magnesium oxide price is determined by purity and calcination energy costs. In 2026, Industrial grade MgO 90-95% remains the most cost-effective option for bulk buyers, while High Purity MgO 99% commands a premium due to intensive refining.
4. What is the difference between DBM and CCM magnesium oxide?
It comes down to the magnesium oxide manufacturing process. Caustic Calcined Magnesia (CCM) is processed at lower heat and is highly reactive (ideal for boards/cement). Dead Burned Magnesia (DBM) is processed at high heat, making it chemically inactive and perfect for refractory bricks.
Dead Burned Magnesia DBM high-temperature calcined granules
5. Where can I buy magnesium oxide board at China factory prices?
To get the best magnesium oxide cost China has to offer, you should source directly from manufacturers in Dashiqiao or Haicheng. These “Magnesite Metropolises” allow you to bypass middleman markups.
6. Which is better for industrial use: magnesium or magnesium oxide?
For B2B applications like insulation, cement, and refractories, magnesium oxide is the correct choice. While magnesium is a flammable metal, magnesium oxide is a stable mineral with an extremely high melting point (2,852°C), making it a superior insulator.
7. How do I prevent magnesium oxide powder from caking during shipping?
Because MgO is highly hygroscopic, you must ensure your magnesium oxide suppliers use 1.25-ton jumbo bags with double-layered PE moisture-proof liners. For high-purity orders, vacuum sealing is recommended to protect the elemental magnesium oxide from atmospheric moisture.
8. What is the CAS number for magnesium oxide?
The CAS number for magnesium oxide is 1309-48-4. This identifier is used internationally for chemical classification, safety documentation, and procurement.
9. How can buyers verify magnesium oxide suppliers in China?
Buyers should check ISO certifications, SGS testing reports, production capacity, export experience, and client references before selecting a supplier.
Our expert team performs strict quality checks of magnesium oxide thus meeting the required standards.
Conclusion
So, why does choosing the right Magnesium Oxide China supplier matter for your 2026 operations? As we have explored, the difference between a standard Industrial grade MgO 90-95% and a High Purity MgO 99% variant isn’t just a percentage—it is the stability of your supply chain and the performance of your end products. Whether you are in magnesium oxide brick manufacturing or specialized sodium magnesium oxide battery production, sourcing directly from verified hubs like Liaoning allows you to bypass the 12-24 week lead times common with Western distributors.
The key is partnering with suppliers who understand industrial-grade chemical sourcing and strict quality requirements. Our global procurement experience also supports companies that need to buy Mining Chemicals from China for operations in Zambia’s mining sector, ensuring reliable supply and consistent product standards.
We make your Global Mgo projects reliable, cost-effective and assist in providing best service
Partner with CAMAL for Your Magnesium Oxide Sourcing in China
Navigating the magnesium oxide price and supplier landscape in a volatile market requires an expert on the ground. At CAMAL, we bridge the gap between your technical requirements and China’s manufacturing power. Beyond MgO, we support your entire operations; you can view our comprehensive list of the Top 10 Chinese Mining Chemical Suppliers to find the best partners for your business.
Ready to find cost-effective, Chinese Manufacturers of Magnesium Oxide?
WhatsAppUs!
WhatsApp Us for Free a Consultation
How can CAMAL help you manage your China Sourcing?
✅ Do you spend too much time finding the right manufacturers in China?
✅Do you face difficulties in communicating your requirements to suppliers in China?
✅ Do your products often need customization just for you?
✅ Do you wish someone could help you with end-to-end procurement, so you can focus on growing your business?
If your answer is YES, Reduce Your China Sourcing Headaches, WhatsApp Us (Faster) or Email Us Now for a FREE Consultation
✅CAMAL: Quality Factories = Quality Products = Happy Customers✅
Interested in getting reliable Magnesium Oxide Sourcing? Contact us now!
