dolomite powder

Global Dolomite Powder Market: An In-Depth Sourcing & Industry Guide

Dolomite powder, a mineral compound composed of calcium magnesium carbonate (CaMg(CO₃)₂), is a critical raw material across multiple industries, including construction, agriculture, glass manufacturing, ceramics, steelmaking, and water treatment. Its unique properties—high brightness, good chemical resistance, and thermal stability—make it indispensable for applications like flooring, wall putty, and refractory bricks. The global dolomite market has experienced steady growth, driven by urbanization and industrial expansion. This guide provides a comprehensive analysis of the global supply chain, top manufacturers, pricing trends, and strategic sourcing advice for 2026.

Top 10 Global Dolomite Powder Suppliers & Factories (2026 Ranking)

The global dolomite market is fragmented, with key producers concentrated in regions with rich mineral deposits. The following ranking is based on production capacity, export volume, and market reputation.

الرتبة	اسم الشركة	البلد	Annual Capacity (Million Tons)	التخصص الرئيسي
1	Lhoist Group	بلجيكا	12+	High-purity industrial dolomite
2	RHI Magnesita	النمسا	8+	Refractory-grade dolomite
3	Carmeuse	بلجيكا	7+	Construction & agriculture
4	Imerys	فرنسا	5+	Ceramics & glass
5	Minerals Technologies Inc.	الولايات المتحدة الأمريكية	4+	Specialty minerals
6	Sibelco	بلجيكا	4+	Glass & ceramics
7	Omya AG	سويسرا	3.5+	Filler-grade dolomite
8	Nordkalk Corporation	فنلندا	3+	Environmental applications
9	Graymont Limited	كندا	2.5+	Steel & construction
10	JFE Mineral Company	اليابان	2+	High-purity for steelmaking

Top 10 Dolomite Powder Suppliers & Factories in China (2026)

China is the world’s largest producer and exporter of dolomite powder, with major clusters in Liaoning, Hebei, and Guangxi provinces. The following list highlights leading Chinese manufacturers known for quality and export reliability.

الرتبة	اسم الشركة	الموقع (المحافظة)	Annual Capacity (Million Tons)	المنتجات الرئيسية
1	Haicheng Xinda Mining Co., Ltd.	Liaoning	1.5+	High-grade dolomite for steel
2	Lingshou County Huayuan Mineral Co., Ltd.	خبي	1+	Dolomite powder for construction
3	Guangxi Longsheng Mining Co., Ltd.	Guangxi	0.8+	Agricultural dolomite
4	Dandong Tianci Mining Co., Ltd.	Liaoning	0.7+	Refractory-grade dolomite
5	Shijiazhuang Hongji Mining Co., Ltd.	خبي	0.6+	Ultra-fine dolomite powder
6	Zibo Longtai Chemical Co., Ltd.	شاندونغ	0.5+	Ceramic-grade dolomite
7	Hubei Yichang Changlin Mining Co., Ltd.	هوبى	0.4+	Glass-grade dolomite
8	Jiangxi Pingxiang Mining Co., Ltd.	جيانغشي	0.3+	Construction filler
9	Yunnan Kunming Fengyuan Mining Co., Ltd.	Yunnan	0.3+	Agricultural & soil conditioner
10	Anhui Chaohu Mining Co., Ltd.	آنهوي	0.2+	High-whiteness dolomite

Global Supplier Contact Directory (With Email)

اسم الشركة	البلد	البريد الإلكتروني للاتصال	تركيز المنتج
Lhoist Group	بلجيكا	info@lhoist.com	High-purity industrial dolomite
RHI Magnesita	النمسا	sales@rhimagnesita.com	Refractory-grade dolomite
Carmeuse	بلجيكا	contact@carmeuse.com	Construction & agriculture
Imerys	فرنسا	info@imerys.com	Ceramics & glass
Minerals Technologies Inc.	الولايات المتحدة الأمريكية	info@mineralstech.com	Specialty minerals
Sibelco	بلجيكا	contact@sibelco.com	Glass & ceramics
Omya AG	سويسرا	info@omya.com	Filler-grade dolomite
Nordkalk Corporation	فنلندا	info@nordkalk.com	Environmental applications
Graymont Limited	كندا	info@graymont.com	Steel & construction
JFE Mineral Company	اليابان	info@jfe-mineral.co.jp	High-purity for steelmaking
Haicheng Xinda Mining	الصين	sales@xindamining.com	Steel-grade dolomite
Lingshou Huayuan Mineral	الصين	info@huayuanmineral.com	Construction dolomite

Key Factors When Selecting a Chinese Dolomite Manufacturer

Quality Consistency & Purity

Request a Certificate of Analysis (COA) for each batch. Ensure the CaO and MgO content meets your specifications (e.g., CaO >30%, MgO >20%). High whiteness (>90%) is critical for paint and plastic applications.

الطاقة الإنتاجية والمهلة الزمنية للإنتاج

Assess the factory’s monthly output. For large orders (500+ tons), confirm the ability to deliver within 15-20 days. Visit the plant or request a video tour to verify equipment (e.g., Raymond mills, ball mills).

Certifications & Compliance

Look for ISO 9001:2015 (quality management) and ISO 14001 (environmental management). For export, ensure the factory has SGS or BV inspection reports.

Packaging & Logistics

Dolomite powder is typically packed in 25kg/50kg PP bags or 1-ton jumbo bags. Confirm the factory’s proximity to a major port (e.g., Tianjin, Qingdao) to minimize shipping costs.

Why Source from Chinese Manufacturers? Key Advantages

• كفاءة التكلفة: Chinese dolomite powder is typically 20-30% cheaper than European or US counterparts, with FOB prices ranging from $30 to $80 per ton depending on grade.
• Vast Production Scale: China produces over 60 million tons of dolomite annually, ensuring supply stability for bulk orders.
• إمكانيات التخصيص: Chinese factories offer tailored particle sizes (200 mesh to 1250 mesh) and surface treatments (e.g., stearic acid coating for plastics).
• Established Export Infrastructure: Major ports like Tianjin and Shanghai have dedicated mineral terminals, reducing loading time.

How to Find a Professional Dolomite Manufacturer in China

1. استخدام منصات B2B: Alibaba, Made-in-China, and Global Sources list verified suppliers. Filter by “Verified Supplier” and “Trade Assurance”.
2. حضور المعارض التجارية: Visit the Canton Fair (April/October) or the China International Mining Expo (June) to meet suppliers in person.
3. طلب العينات: Always ask for a 1-2kg sample for lab testing before placing a bulk order.
4. Conduct a Factory Audit: Hire a third-party inspection agency (e.g., SGS, Bureau Veritas) to verify production capacity and quality control.
5. Check Export History: Use customs data (e.g., Panjiva, ImportGenius) to see if the factory has exported to your country before.

سيناريوهات التطبيق والحلول

Construction & Building Materials

Dolomite powder is used as a filler in asphalt, concrete, and wall putty. Solution: Use 200-400 mesh dolomite for improved workability and reduced shrinkage.

Agriculture & Soil Remediation

Agricultural dolomite neutralizes acidic soil and provides magnesium for crops. Solution: Apply 1-2 tons per hectare, with particle size <2mm.

Glass Manufacturing

Dolomite is a key fluxing agent in glass production. Solution: Use high-purity dolomite (MgO >20%, Fe2O3 <0.1%) to prevent discoloration.

Steelmaking

In the steel industry, dolomite is used as a refractory material and slag conditioner. Solution: Use calcined dolomite (dead-burned) for ladle and furnace linings.

Water Treatment

Dolomite filters remove heavy metals and adjust pH. Solution: Use granular dolomite (1-5mm) for efficient filtration.

الأسئلة الشائعة (10 أسئلة متكررة)

1. What is the difference between dolomite and limestone? Dolomite contains magnesium carbonate (MgCO3), while limestone is primarily calcium carbonate (CaCO3). Dolomite is harder and more resistant to acid.
2. What mesh size is best for construction? For wall putty and plaster, 200-325 mesh is standard. For flooring, 40-80 mesh is common.
3. Is dolomite powder safe for drinking water? Yes, food-grade dolomite is used in water filtration systems and is approved by NSF/ANSI standards.
4. What is the typical lead time for a 20-ton order? From Chinese factories, lead time is usually 7-10 days after confirmation.
5. Can dolomite be used in animal feed? Yes, as a calcium and magnesium supplement for livestock and poultry.
6. What is the price range for FOB China? Prices range from $30/ton for coarse grade (80 mesh) to $80/ton for ultra-fine grade (1250 mesh).
7. How to test dolomite purity? Use X-ray fluorescence (XRF) or acid digestion followed by EDTA titration.
8. What packaging is available for export? Common options: 25kg PP bags, 50kg woven bags, or 1-ton jumbo bags.
9. Is dolomite powder flammable? No, it is non-flammable and non-toxic.
10. What is the HS code for dolomite? The HS code is 2518.10 (dolomite, not calcined) or 2518.20 (calcined dolomite).

Procurement Tips for Dolomite Powder

• Negotiate Incoterms: FOB (Free on Board) is common for bulk shipments. CIF (Cost, Insurance, Freight) may be preferred for smaller buyers.
• Check Moisture Content: Ensure moisture is below 2% to avoid clumping and weight loss during transit.
• Secure Payment Terms: Use T/T (30% deposit, 70% against BL copy) or L/C (Letter of Credit) for large orders.
• Inspect Before Shipment: Hire SGS or Bureau Veritas for pre-shipment inspection to verify quality and quantity.

Product Pricing Guide (2026)

Grade	Mesh Size	Purity (CaO+MgO)	FOB Price (USD/Ton)	التطبيق
Coarse	80-100	>50%	$30-$40	Construction, agriculture
Medium	200-325	>52%	$45-$60	Wall putty, plastics
Fine	400-600	>54%	$60-$75	Paints, rubber
Ultra-fine	800-1250	>55%	$75-$90	High-end plastics, cosmetics
Calcined	0-5mm	>90% (MgO)	$120-$180	Refractories, steelmaking

Industry Standards for Dolomite Powder

• ASTM C737-08: Standard specification for limestone and dolomite for metallurgical use.
• ISO 3262-1: Extenders for paints – specifications for dolomite.
• GB/T 20314-2006: Chinese standard for dolomite used in glass industry.
• BS 3982-1: British standard for dolomite in building materials.

Top 5 Global Import & Export Regions (2026)

المناطق المصدرة (أعلى 5)

الرتبة	البلد/المنطقة	Export Volume (Million Tons)	Main Destinations
1	الصين	25	Japan, South Korea, India, USA
2	الهند	10	Bangladesh, Nepal, Middle East
3	تركيا	8	Europe, North Africa
4	البرازيل	5	USA, Europe
5	Russia	4	CIS countries, China

المناطق المستوردة (أعلى 5)

الرتبة	البلد/المنطقة	Import Volume (Million Tons)	Main Sources
1	اليابان	8	China, Vietnam
2	كوريا الجنوبية	6	China, India
3	الولايات المتحدة الأمريكية	5	China, Mexico
4	ألمانيا	4	Turkey, China
5	الهند	3.5	China, UAE

Google Search Business Keywords: 10 FAQ Articles

1. What is the price of dolomite powder per ton in 2026? Prices range from $30 to $180 per ton FOB China, depending on grade and mesh size.
2. Where to buy high-purity dolomite powder for glass? Top sources include Lhoist (Belgium), Imerys (France), and Haicheng Xinda (China).
3. How to import dolomite powder from China? Use B2B platforms, request samples, negotiate Incoterms, and hire a freight forwarder.
4. What is the HS code for calcined dolomite? HS code 2518.20 for calcined dolomite; 2518.10 for uncalcined.
5. Is dolomite powder good for soil pH adjustment? Yes, agricultural dolomite effectively raises pH and adds magnesium.
6. What is the difference between dolomite and marble powder? Dolomite contains magnesium; marble is pure calcium carbonate. Dolomite is harder.
7. Can dolomite powder be used in plastic industry? Yes, as a filler to improve rigidity and reduce cost.
8. What is the whiteness of premium dolomite powder? Premium grades have whiteness >95% (measured by L value).
9. How to test dolomite powder quality? Check CaO, MgO, Fe2O3 content, particle size distribution, and moisture.
10. What are the shipping costs for dolomite from China to USA? Approx. $30-$50 per ton for a 20ft container, depending on port.

Customs Data & Tariff Rates (2026)

• HS Code 2518.10: Uncalcined dolomite. Duty: 0% in most countries (WTO bound rate). Some countries (e.g., India) impose 5% import duty.
• HS Code 2518.20: Calcined dolomite. Duty: 0-3% in EU and USA. China’s export tariff is 0%.
• US Import Tariff: 0% for dolomite from China (under Section 301, no additional tariffs as of 2026).
• EU Import Tariff: 0% for both calcined and uncalcined dolomite.

Why Choose Small & Medium Factories vs. Large Factories?

Advantages of Small & Medium Factories (SMEs)

• المرونة: SMEs often accept smaller MOQs (minimum order quantities) of 5-10 tons.
• التخصيص: They are more willing to adjust particle size, packaging, and surface treatment.
• أسعار أقل: Overhead costs are lower, translating to 5-10% price reduction compared to large factories.
• خدمة مخصصة: Direct communication with the factory owner or manager.

مزايا المصانع الكبيرة

• جودة متسقة: Rigorous quality control systems and automated production lines.
• Large Capacity: Can handle orders of 1000+ tons per month.
• Better Certifications: ISO, SGS, and environmental compliance are standard.
• Reliable Logistics: Established relationships with shipping lines, ensuring on-time delivery.

2026 News Highlights (Compiled from Major Media)

• كانون الثاني/يناير 2026: “Global Dolomite Market to Reach $3.5 Billion by 2030, Driven by Construction Boom” – MarketResearch.com
• مارس 2026: “China’s Dolomite Exports Surge 15% in Q1 2026, with Japan as Top Buyer” – إحصاءات الجمارك الصينية
• May 2026: “New Environmental Regulations in Liaoning Province Impact Small Dolomite Mines” – China Mining News
• July 2026: “India Imposes Anti-Dumping Duty on Chinese Dolomite Powder, Raising Prices by 12%” – Economic Times
• سبتمبر 2026: “European Dolomite Producers Invest in Carbon Capture Technology to Meet EU Green Deal” – رويترز
• نوفمبر 2026: “US Infrastructure Bill Boosts Demand for Dolomite in Road Construction” – Construction World

2026 Core Market Data Overview

متري	القيمة	المصدر
حجم السوق العالمية (بالدولار الأمريكي)	$2.8 مليار دولار	جراند فيو للأبحاث
Annual Production (Million Tons)	120	USGS
China’s Share of Global Production	50%	China Mining Association
Average Price (FOB China, USD/Ton)	$50	Alibaba Trade Data
أكبر دولة مستوردة	Japan (8M tons)	UN Comtrade
معدل النمو (المعدل السنوي المركب 2024-2030)	4.5%	MarketResearch.com
Key Application Segment	Construction (40%)	Industry Analysis

نقاط ألم العملاء والسوق

• عدم اتساق الجودة: Buyers often receive batches with varying CaO/MgO content, leading to production issues. Solution: Insist on COA for every shipment.
• High Logistics Costs: Shipping from inland Chinese mines to ports adds $10-$15 per ton. Solution: Choose factories near coastal ports.
• عوائق التواصل: Language and time zone differences cause delays. Solution: Hire a bilingual sourcing agent or use factories with English-speaking staff.
• الامتثال البيئي: Stricter regulations in China may cause sudden price hikes or supply shortages. Solution: Diversify suppliers across multiple provinces.
• Payment Risks: Fraudulent suppliers may demand full payment upfront. Solution: Use Trade Assurance on Alibaba or L/C for large orders.

By leveraging this comprehensive guide, buyers can navigate the global dolomite powder market with confidence, ensuring cost-effective, high-quality sourcing for their specific applications.