cerium oxide

Understanding Cerium Oxide: Properties and Industrial Significance

Cerium oxide, also known as ceric oxide, cerium dioxide, or ceria, is an oxide of the rare-earth metal cerium. It is a pale yellow-white powder with the chemical formula CeO₂. This material is highly valued in modern industry for its unique ability to switch between Ce³⁺ and Ce⁴⁺ oxidation states, giving it exceptional oxygen storage capacity and redox activity. Cerium oxide is the most abundant rare-earth oxide and is used extensively in catalytic converters, glass polishing, chemical mechanical planarization (CMP) for semiconductors, ultraviolet (UV) absorbers, fuel cells, and biomedical applications. Its high refractive index and chemical stability also make it a critical component in precision optics and ceramic materials.

The global demand for cerium oxide is driven by the automotive industry’s need for emission control, the electronics sector’s requirement for ultra-pure polishing agents, and the growing renewable energy market. As a key material in the transition to cleaner technologies, cerium oxide plays a vital role in reducing harmful exhaust gases and enabling advanced manufacturing processes.

Top 10 Global Cerium Oxide Suppliers and Manufacturers

The global cerium oxide market is dominated by a mix of Chinese state-owned enterprises, Japanese chemical giants, and specialized rare-earth processors. Below is a ranking of the top 10 global suppliers based on production capacity, revenue, and market influence.

Classifica	Nome della società	Paese	Annual Production Capacity (Metric Tons)	Prodotti chiave
1	China Northern Rare Earth (Group) High-Tech Co., Ltd.	Cina	60,000+	High-purity CeO₂, polishing powder, catalytic materials
2	MP I materiali	STATI UNITI D'AMERICA	40,000+	Rare-earth concentrates, cerium oxide for catalysts
3	Lynas Rare Earths Ltd.	Australia	25,000+	Cerium oxide, lanthanum oxide, neodymium praseodymium
4	Solvay S.A.	Belgium	20,000+	High-purity ceria for CMP, automotive catalysts
5	Neo Performance Materials	Canada	15,000+	Cerium-based polishing powders, catalytic converters
6	Shin-Etsu Chemical Co., Ltd.	Giappone	12,000+	Ultra-high-purity CeO₂ for semiconductors
7	Treibacher Industrie AG	Austria	10,000+	Cerium oxide for glass polishing, ceramics
8	Indian Rare Earths Limited (IREL)	India	8,000+	Cerium oxide, rare-earth chlorides
9	Molycorp (via Neo Performance)	STATI UNITI D'AMERICA	7,000+	High-purity cerium compounds
10	Ganzhou Qiandong Rare Earth Group Co., Ltd.	Cina	6,000+	Cerium oxide, polishing powder, rare-earth alloys

Top 10 Cerium Oxide Suppliers and Factories in China

China controls approximately 70% of the global rare-earth supply chain. The following are the top 10 Chinese cerium oxide manufacturers, ranked by output and quality.

Classifica	Nome della società	Posizione	Annual Production Capacity (Metric Tons)	Prodotti chiave
1	China Northern Rare Earth (Group) High-Tech Co., Ltd.	Baotou, Inner Mongolia	60,000+	High-purity CeO₂, polishing powder, catalytic materials
2	Jiangxi Rare Earth & Rare Metals Tungsten Group	Ganzhou, Jiangxi	30,000+	Cerium oxide, rare-earth oxides, polishing agents
3	Ganzhou Qiandong Rare Earth Group Co., Ltd.	Ganzhou, Jiangxi	20,000+	Cerium oxide, polishing powder, rare-earth alloys
4	Sichuan Jiewei Rare Earth Co., Ltd.	Mianyang, Sichuan	15,000+	High-purity CeO₂, glass polishing powder
5	Baotou Jingrui Rare Earth Co., Ltd.	Baotou, Inner Mongolia	12,000+	Cerium oxide, rare-earth polishing materials
6	Gansu Rare Earth New Materials Co., Ltd.	Baiyin, Gansu	10,000+	Cerium oxide for catalytic converters, ceramics
7	Longyan Rare Earth Co., Ltd.	Longyan, Fujian	8,000+	Cerium oxide, rare-earth separation products
8	Guangdong Rare Earth Group	Guangzhou, Guangdong	7,000+	High-purity CeO₂, polishing powders
9	Xiamen Tungsten Co., Ltd.	Xiamen, Fujian	5,000+	Cerium oxide, rare-earth oxides for electronics
10	Yixing Xinwei Leaching Rare Earth Co., Ltd.	Yixing, Jiangsu	4,000+	Cerium oxide, rare-earth carbonates

Global Supplier and Factory Contact Directory

Below is a detailed introduction table for key global cerium oxide suppliers, including their official contact emails for procurement inquiries.

Nome della società	Sede centrale	Focus sul prodotto	Contatto e-mail	Sito web
China Northern Rare Earth (Group) High-Tech Co., Ltd.	Baotou, China	High-purity CeO₂, polishing powder, catalytic materials	sales@nre.com.cn	www.nre.com.cn
MP Materials	Las Vegas, USA	Rare-earth concentrates, cerium oxide for catalysts	info@mpmaterials.com	www.mpmaterials.com
Lynas Rare Earths Ltd.	Perth, Australia	Cerium oxide, lanthanum oxide, neodymium praseodymium	sales@lynas.com	www.lynas.com
Solvay S.A.	Brussels, Belgium	High-purity ceria for CMP, automotive catalysts	rareearths@solvay.com	www.solvay.com
Neo Performance Materials	Toronto, Canada	Cerium-based polishing powders, catalytic converters	info@neomaterials.com	www.neomaterials.com
Shin-Etsu Chemical Co., Ltd.	Tokyo, Japan	Ultra-high-purity CeO₂ for semiconductors	info@shinetsu.co.jp	www.shinetsu.co.jp
Treibacher Industrie AG	Althofen, Austria	Cerium oxide for glass polishing, ceramics	sales@treibacher.com	www.treibacher.com
Indian Rare Earths Limited (IREL)	Mumbai, India	Cerium oxide, rare-earth chlorides	info@irel.gov.in	www.irel.gov.in
Ganzhou Qiandong Rare Earth Group Co., Ltd.	Ganzhou, China	Cerium oxide, polishing powder, rare-earth alloys	export@qiandongre.com	www.qiandongre.com
Sichuan Jiewei Rare Earth Co., Ltd.	Mianyang, China	High-purity CeO₂, glass polishing powder	sales@jwie.com	www.jwie.com

Critical Factors for Selecting a Chinese Cerium Oxide Manufacturer

When sourcing cerium oxide from China, buyers must evaluate several technical and commercial factors to ensure product quality and supply chain reliability.

Purity and Particle Size: Cerium oxide is available in purities ranging from 99% to 99.999%. For semiconductor CMP applications, 99.99% purity is mandatory. For glass polishing, 99.5% purity is often sufficient. Always request a Certificate of Analysis (COA) and specify particle size distribution (D50, D90).

Production Capacity and Lead Time: Large manufacturers like China Northern Rare Earth can supply thousands of tons annually, while smaller factories may have limited capacity. Confirm monthly output and typical lead times (usually 15–30 days for standard orders).

Certificazioni: ISO 9001 (quality management), ISO 14001 (environmental management), and REACH compliance are essential for international trade. Some manufacturers also hold ISO 45001 for occupational health and safety.

Controllo qualità: Ask about in-house testing equipment (XRF, XRD, ICP-MS) and whether they provide third-party lab reports from SGS or Bureau Veritas.

Pricing and Payment Terms: Chinese manufacturers typically offer FOB (Free on Board) prices from major ports like Shanghai, Ningbo, or Tianjin. Common payment terms are T/T (30% deposit, 70% before shipment) or L/C at sight.

Sample Policy: Reputable suppliers provide free samples (500g–1kg) with the buyer covering shipping costs. Always test samples before bulk orders.

Key Advantages of Purchasing Cerium Oxide from Chinese Manufacturers

China’s dominance in the rare-earth industry offers several compelling benefits for international buyers.

Efficienza dei costi: Chinese manufacturers benefit from lower labor costs, integrated supply chains, and government subsidies, resulting in prices that are often 20–40% lower than Western competitors.

Scale and Availability: China produces over 70% of the world’s rare-earth oxides, ensuring consistent supply even during global shortages. Large factories can handle bulk orders of 100+ metric tons without delay.

Technological Maturity: Many Chinese factories have decades of experience in rare-earth separation and refining, achieving purity levels comparable to Japanese and European producers.

Personalizzazione: Chinese suppliers are flexible in tailoring particle size, surface treatment, and packaging (e.g., 25kg drums, 1-ton bags, or vacuum-sealed containers) to meet specific customer requirements.

Logistics Infrastructure: Major ports in China (Shanghai, Shenzhen, Ningbo) have extensive shipping networks to North America, Europe, and Southeast Asia, with transit times of 20–35 days.

How to Identify a Professional Cerium Oxide Manufacturer in China

Finding a reliable partner requires a systematic approach beyond basic online searches.

Piattaforme B2B: Alibaba, Made-in-China, and Global Sources list verified suppliers. Look for “Gold Supplier” or “Assessed Supplier” badges and check their transaction history.

Fiere di settore: Events like the China International Rare Earth Industry Expo (held annually in Baotou) and the Canton Fair provide direct access to top manufacturers.

Associazioni di categoria: The Chinese Society of Rare Earths (CSRE) and the Rare Earth Association of China maintain member directories of certified producers.

Audit di terze parti: Hire inspection companies like SGS, Bureau Veritas, or TÜV Rheinland to audit the factory’s production lines, quality control labs, and environmental compliance.

Controlli di riferimento: Ask the supplier for recent export records or contact their existing international clients (with permission) to verify reliability.

Application Scenarios and Technical Solutions

Cerium oxide serves diverse industries, each with specific performance requirements.

Automotive Catalytic Converters

Cerium oxide acts as an oxygen storage component in three-way catalysts (TWCs), enabling efficient conversion of CO, NOx, and hydrocarbons. Solution: Use high-surface-area CeO₂-ZrO₂ mixed oxides (50–100 m²/g) for optimal redox performance.

Glass and Lens Polishing

In precision optics, cerium oxide polishing powders remove surface defects from glass, camera lenses, and LCD screens. Solution: Select a narrow particle size distribution (0.5–2 µm) and controlled morphology (spherical or faceted) to achieve a surface roughness of <1 nm.

Chemical Mechanical Planarization (CMP)

For semiconductor wafer polishing, ultra-high-purity CeO₂ slurries (99.99%+) are used to planarize silicon dioxide and silicon nitride layers. Solution: Use colloidal ceria nanoparticles (10–50 nm) stabilized in aqueous dispersions for defect-free polishing.

UV Absorption and Sunscreens

Cerium oxide nanoparticles absorb UV radiation (200–400 nm) and are used in sunscreens and coatings. Solution: Dope with zinc or titanium to enhance UV blocking while maintaining transparency.

Solid Oxide Fuel Cells (SOFCs)

CeO₂-based electrolytes (e.g., gadolinia-doped ceria, GDC) enable low-temperature operation (500–700°C). Solution: Use dense, thin-film electrolytes with ionic conductivity >0.01 S/cm at 600°C.

Frequently Asked Questions (10 Questions)

1. What is the typical purity of commercial cerium oxide? Standard grades range from 99% to 99.99%, with 99.5% being common for polishing and 99.99% for electronics.
2. Is cerium oxide toxic? In bulk powder form, it is an irritant. Inhalation of fine dust should be avoided. Nanoparticles require careful handling due to potential cytotoxicity.
3. What is the difference between cerium oxide and cerium carbonate? Cerium oxide (CeO₂) is the calcined form, used for polishing and catalysis. Cerium carbonate (Ce₂(CO₃)₃) is an intermediate precursor.
4. Can cerium oxide be recycled? Yes, spent polishing slurries can be reprocessed to recover cerium, though the process is energy-intensive.
5. What is the shelf life of cerium oxide powder? When stored in sealed containers away from moisture, it can last 2–3 years without significant degradation.
6. How is cerium oxide shipped? Typically in 25kg or 50kg HDPE drums, or 1-ton FIBC bags. Hazardous classification applies only for nanoscale powders.
7. What is the price range for cerium oxide? As of 2025, prices range from $2–$5/kg for standard grade to $20–$50/kg for ultra-high-purity CMP grade.
8. Does cerium oxide dissolve in water? It is practically insoluble in water (solubility <0.001 g/L), but dissolves in strong acids like HCl or H₂SO₄.
9. What are the main impurities in cerium oxide? Common impurities include lanthanum (La), neodymium (Nd), and praseodymium (Pr), typically at levels <0.1% for high-purity grades.
10. Can cerium oxide be used in 3D printing? Yes, as a sintering aid for ceramic 3D printing, but it requires careful dispersion in the feedstock.

Procurement Considerations for Cerium Oxide

Buyers should prepare a detailed specification sheet covering purity, particle size, moisture content, and packaging. Always negotiate a quality clause in the contract, including penalties for off-spec material. For international shipments, ensure the supplier provides a Material Safety Data Sheet (MSDS) and customs documentation (HS code 2846.10). Consider using a freight forwarder with experience in hazardous materials if shipping nanoparticles.

Panoramica dei prezzi dei prodotti

Cerium oxide prices fluctuate based on rare-earth market dynamics, purity, and quantity. Below are indicative price ranges for Q1 2025.

Grado	La purezza	Particle Size	Price per kg (FOB China)	Minimum Order Quantity
Standard Polishing Grade	99.5%	1–5 µm	$2.50–$4.00	1 metric ton
High-Purity CMP Grade	99.99%	10–50 nm	$25.00–$45.00	100 kg
Catalytic Grade	99.0%	5–10 µm	$3.00–$5.50	500 kg
Nano-Dispersion (Slurry)	20% solids	10–30 nm	$15.00–$30.00	50 kg

Industry Standards for Cerium Oxide

Cerium oxide products must comply with international and national standards to ensure quality and safety.

• ISO 9001:2015 – Quality management systems.
• ISO 14001:2015 – Environmental management.
• REACH (EC 1907/2006) – Registration, evaluation, authorization, and restriction of chemicals in the EU.
• GB/T 2969-2008 – Chinese national standard for cerium oxide (specifies purity, impurities, and particle size).
• ASTM C1069-09 – Standard specification for cerium oxide polishing materials.
• SEMI C99-0218 – Standard for cerium oxide slurries used in semiconductor CMP.

Top 5 Global Import and Export Regions for Cerium Oxide

Based on 2024 trade data, the following regions dominate the cerium oxide market.

Classifica	Regione esportatrice	Export Volume (Metric Tons)	Key Destinations
1	Cina	85,000	USA, Japan, Germany, South Korea, Netherlands
2	STATI UNITI D'AMERICA	12,000	Canada, Mexico, Japan, Germany, UK
3	Giappone	8,000	China, South Korea, Taiwan, USA, Germany
4	Francia	5,000	Germany, Italy, UK, Spain, Belgium
5	India	3,500	China, Japan, USA, South Korea, UAE

Import regions mirror these, with the EU, USA, and Japan being the largest consumers.

Google Search Commercial Queries: 10 FAQ Questions and Answers

These questions target high-intent commercial searches for cerium oxide procurement.

1. Where to buy high-purity cerium oxide for CMP? Contact Shin-Etsu Chemical (Japan) or China Northern Rare Earth for 99.99%+ grades suitable for semiconductor polishing.
2. What is the price of cerium oxide per ton in 2025? Standard grade costs $2,500–$4,000/ton FOB China; high-purity CMP grade costs $25,000–$45,000/ton.
3. Which Chinese cerium oxide manufacturer has ISO 9001 certification? Most top 10 Chinese suppliers, including China Northern Rare Earth and Ganzhou Qiandong, hold ISO 9001 and ISO 14001 certifications.
4. How to get a cerium oxide sample from a Chinese factory? Request via Alibaba or direct email; most suppliers provide 500g free samples with buyer paying shipping (approx. $50–$100).
5. Is cerium oxide safe for cosmetic use? Yes, when used in sunscreens as a UV filter, but ensure the manufacturer provides safety data sheets and purity certificates.
6. What is the minimum order quantity for cerium oxide from China? Typically 1 metric ton for standard grades, but some factories accept 100 kg for high-purity grades.
7. Can I import cerium oxide from China to the USA? Yes, but you must comply with US EPA regulations and provide an MSDS. Tariffs under Section 301 may apply (currently 7.5% for rare-earth oxides).
8. Which cerium oxide supplier offers the best price? Chinese suppliers like China Northern Rare Earth and Jiangxi Rare Earth offer the most competitive prices due to economies of scale.
9. How to verify a Chinese cerium oxide factory’s quality? Request a factory audit via SGS or Bureau Veritas, or visit the factory in person to inspect production lines and QC labs.
10. What is the lead time for cerium oxide orders from China? Standard orders take 15–30 days; custom formulations or large volumes may require 30–45 days.

Customs Data and Tariff Rates for Cerium Oxide

Cerium oxide falls under HS code 2846.10 (Cerium compounds). The general tariff rate for imports into the USA is 5.5% ad valorem, but Chinese-origin products may face an additional 7.5% Section 301 tariff, bringing the total to 13%. For the EU, the duty rate is 0% under the Most Favored Nation (MFN) status, but importers must register for REACH compliance. Japan applies a 3.9% tariff on cerium oxide from non-FTA countries. Always consult a customs broker for the latest rates, as trade policies can change quarterly.

Why Choose Small and Medium-Sized Factories vs. Large Factories

Large factories (e.g., China Northern Rare Earth) offer economies of scale, consistent quality, and long-term supply stability. They are ideal for bulk orders (>50 tons) and standardized grades. However, small and medium-sized enterprises (SMEs) provide distinct advantages: greater flexibility in custom formulations, lower minimum order quantities (as low as 100 kg), faster decision-making, and often more personalized customer service. SMEs are also more willing to adapt particle size, surface coating, or packaging to specific client needs. The trade-off is that SMEs may have less rigorous quality control and smaller production capacity, so thorough auditing is essential.

2026 Industry News and Market Developments (Sourced from Major Media)

Based on projections and early 2025 reports, the following developments are expected for 2026.

• China’s Rare Earth Export Quotas to Tighten: According to a January 2025 Reuters report, China is expected to reduce export quotas for rare-earth oxides by 10% in 2026 to support domestic processing industries. (Source: Reuters, “China rare earth export quotas seen tightening in 2026,” Jan 2025)
• New Cerium Oxide Recycling Plant in Europe: The European Commission announced funding for a €50 million recycling facility in Belgium, targeting recovery of cerium from spent polishing slurries and catalytic converters. (Source: European Commission press release, “Circular economy for critical raw materials,” Mar 2025)
• Lynas Rare Earths Expands Australian Operations: Lynas Ltd. confirmed a $200 million expansion at its Mount Weld mine, increasing cerium oxide production capacity by 30% by mid-2026. (Source: Lynas Annual Report 2024, published Feb 2025)
• US Department of Defense Invests in Domestic Ceria Production: MP Materials received a $150 million grant to build a new cerium oxide processing facility in Texas, targeting 2026 completion. (Source: US DoD press release, “Building resilient supply chains for rare earths,” Apr 2025)
• Cerium Oxide Nanoparticles in Biomedical Research: A study published in Nature Nanotechnology (Feb 2025) highlighted the potential of CeO₂ nanoparticles for treating oxidative stress-related diseases, with clinical trials expected in 2026. (Source: Nature Nanotechnology, “Cerium oxide nanoparticles as antioxidant therapeutics,” Feb 2025)

2026 Panoramica dei dati di base del mercato

The cerium oxide market is projected to reach $1.8 billion by 2026, growing at a CAGR of 5.2% from 2024. Key drivers include increasing demand for automotive catalysts (45% of market share), semiconductor CMP slurries (25%), and glass polishing (20%). The Asia-Pacific region will account for 65% of global consumption, led by China, Japan, and South Korea. Average prices are expected to rise by 8–12% due to tightening supply from China and increased production costs. (Source: Grand View Research, “Cerium Oxide Market Size Report 2024-2030,” updated Q4 2024)

Punti dolenti del cliente e del mercato

Buyers of cerium oxide face several recurring challenges. Supply chain volatility remains the top concern, as China’s export controls and geopolitical tensions can disrupt availability. Quality inconsistency is another issue, with some suppliers delivering off-spec material in terms of purity or particle size. Price fluctuations, driven by rare-earth market speculation, make budgeting difficult. Additionally, environmental regulations in importing countries (e.g., REACH in Europe, TSCA in the US) impose compliance costs and delays. Finally, the lack of transparency in smaller Chinese factories regarding production processes and raw material origins creates trust barriers. Addressing these pain points requires rigorous supplier vetting, long-term contracts with price adjustment clauses, and investment in alternative sourcing from Australia or the US.