Polysilicon Supplier
Zhen An Metallurgical Materials is a manufacturing company focusing on the production and export of polysilicon (metal silicon). We are committed to providing high-quality, stable supply, and cost-effective polysilicon products to global customers.
Our key markets are in the Middle East, America, Europe and other regions. We are familiar with the trade processes in these countries and have a dedicated logistics network, dedicated sales staff and solutions.
Zhen an Metallurgy
Provide Poly-silicon In The Global
We can supply high-purity polysilicon 4N-11N, with solar-grade polysilicon purity reaching 99.9999% (6N) and electronic-grade polysilicon purity reaching 99.9999999% (9N). It is dust-free and impurity-free, and is very suitable for applications such as solar cells and semiconductor chips.
Product Overview of Polysilicon
Polycrystalline silicon is a polycrystalline structure material based on high-purity silicon, generally in irregular blocks.
Polycrystalline silicon blocks are the core raw materials for photovoltaic solar cells, semiconductor chips, integrated circuits and other industries. With its high purity, high thermal stability, excellent conductivity and chemical stability, polycrystalline silicon has become a key material to promote the global new energy revolution and leap forward in electronic technology.
polysilicon
Polysilicon Bloks
silicon rod
polysilicon ingots
Granular polysilicon
In addition to polysilicon products, Zhenan Metallurgy also provides you with metallurgical silicon processed from high-quality industrial silicon, available in various forms such as lumps, granules, and powder. It is mainly used in the electronics, metallurgy, and chemical industries. Metallurgical silicon is silver-gray or dark gray in color, has a metallic luster, a high melting point, good heat resistance, high resistivity, and excellent oxidation resistance.
Our polysilicon products range from 4N-6N, 6N-9N, 9N-11N, with a silicon purity of up to 99.999999999% (11N grade), which fully meets the requirements of solar-grade and electronic-grade polysilicon.
Through the advanced Siemens production process, we ensure that the impurity content in the product is extremely low, with a boron content of less than 0.3ppb, a phosphorus content of less than 0.5ppb, and a carbon content of less than 0.5ppm, providing the best quality raw material basis for downstream silicon ingot and wafer production.
| Parameter | Solar Grade | Electronic Grade | Remarks |
|---|---|---|---|
| Appearance | Metallic gray chunks or granules | Metallic gray rods or grains | No oxidation layer, oil-free surface |
| Purity | ≥ 6N (99.9999%) | 9N–11N (99.9999999%) | Tested by ICP-MS |
| Metallic Impurities | ≤ 1 ppm (total metals) | ≤ 0.1 ppm | GDMS report available |
| Grain Size | 10–50 mm; customizable | 1–10 mm; cut to spec | Both chunk and crushed forms available |
| Carbon Content (C) | ≤ 0.5 ppm | ≤ 0.2 ppm | Helps prevent crystal defects |
| Oxygen Content (O) | ≤ 0.8 ppm | ≤ 0.3 ppm | Cleaning recommended before processing |
| Hydrogen Content (H) | ≤ 1 ppm | ≤ 0.5 ppm | Affects wafer structure |
| Packaging | Vacuum-sealed aluminum foil + crate | High-purity argon-sealed | Moisture-proof and light-blocking packaging |
| Application | Mono/Poly solar cell wafer | ICs, power semiconductors, electronics | Choose grade based on application |
| Certification | ISO 9001, SGS, RoHS, REACH | ISO 14001, CE | Local certifications available on request |
In addition to high-purity polysilicon, we also provide different grades of metallic silicon and metallic silicon powder~
| Garde | Composition | ||||
| Si Content(%) | Impurities(%) | ||||
| Fe | Al | Ca | P | ||
| Silicon Metal 1501 | 99.69 | 0.15 | 0.15 | 0.01 | ≤0.004% |
| Silicon Metal 1502 | 99.68 | 0.15 | 0.15 | 0.02 | ≤0.004% |
| Silicon Metal 1101 | 99.79 | 0.1 | 0.1 | 0.01 | ≤0.004% |
| Silicon Metal 2202 | 99.58 | 0.2 | 0.2 | 0.02 | ≤0.004% |
| Silicon Metal 2502 | 99.48 | 0.25 | 0.25 | 0.02 | ≤0.004% |
| Silicon Metal 3303 | 99.37 | 0.3 | 0.3 | 0.03 | ≤0.005% |
| Silicon Metal 411 | 99.4 | 0.4 | 0.1 | 0.1 | ≤0.005% |
| Silicon Metal 421 | 99.3 | 0.4 | 0.2 | 0.1 | – |
| Silicon Metal 441 | 99.1 | 0.4 | 0.4 | 0.1 | – |
| Silicon Metal 551 | 98.9 | 0.5 | 0.5 | 0.1 | – |
| Silicon Metal 553 | 98.7 | 0.5 | 0.5 | 0.3 | – |
| Off-Grade Silicon Metal | 96 | 2 | 1 | 1 | – |
Remark：Other chemical composition and size can be supplied upon request.
Supply Ability: 3000 Metric Tons per month
Min Order Quantity: 20 Metric Ton
| Silicon Metal Powder | 0mm – 5mm |
| Silicon Metal Grit/Sand | 1mm – 10mm |
| Silicon Metal Lump/Block | 10mm – 200mm, Tailor-made size |
| Silicon Metal Briquette/Ball | 40mm – 60mm mmmmmm |
- Uniform particle size distribution: 10-100mm standard particle size to meet the processing needs of different customers
- Stable crystal structure: compact polycrystalline structure, excellent thermal stability
- High surface finish: after precision cleaning process, no contaminants remain on the surface
- Good mechanical strength: high compressive strength, breakage rate during transportation is less than 0.1%
- Ultra-high purity (6N – 9N+): extremely low impurity content, ensuring higher photovoltaic conversion efficiency (>24% cell yield basis).
- Excellent crystal structure: low defect density, ensuring efficient and stable crystal growth process and high output rate of silicon wafers.
- Strict metal control: the content of key metal impurities such as Fe, Cr, Ni, Cu, Na is much lower than the industry standard (such as < 0.1 ppbw), minimizing light-induced degradation (LID).
- Consistent carbon and oxygen content: precise control, optimizing the crystal growth process window, and improving yield.
- Customized particle size distribution: Meet the requirements of different feeding processes (block, granular silicon, etc.).
- Ultimate purity (9N – 11N): Meet the stringent requirements of advanced logic chips, memory chips and power semiconductors for material purity.
- Ultra-low defects: Extremely low dislocation and stacking fault density, laying the foundation for high-quality single crystal growth.
- Trace impurity control: Precise control of dopants such as B, P, As, Sb and heavy metal impurities at ppb or even ppt level.
- Perfect surface quality: No pollution, no damage, ensuring the smooth progress of subsequent epitaxial or direct pulling processes.
- Efficiency and performance: High-purity polysilicon ensures higher energy conversion efficiency of solar cells and lower failure rate of semiconductor devices.
- Cost-effectiveness: By optimizing production processes and economies of scale, we offer competitive prices while maintaining excellent quality.
- Reliable supply chain: Global production and distribution network ensures stable supply and reduces the risk of supply chain disruptions.
- Sustainable production: using energy-saving production methods and waste minimization techniques to reduce environmental impact and meet global sustainable development goals.
Photovoltaic Industry
Polysilicon is the core raw material for solar cells and modules, mainly used for:
- Casting of monocrystalline silicon and polycrystalline silicon ingots
- Solar wafer slicing
- PERC, TOPCon, HJT and other high-efficiency cell production
- Photovoltaic power stations, distributed photovoltaic systems, BIPV projects
🔧 Demand characteristics: pursuit of purity above 6N, uniform particles, low impurities, stable prices
🌍Main markets: Middle East, South America, Europe, Japan, South Korea
Semiconductor Industry
Electronic-grade polysilicon is used as upstream raw materials for semiconductor chip manufacturing, including:
- Single crystal silicon rod pulling (CZ method, FZ method)
- Integrated circuits (IC), microprocessors, memory chips
- MEMS devices, sensors, optoelectronic components
- Power management chips, automotive-grade power devices (IGBT, MOSFET)
🔧 Demand characteristics: extremely high purity (9N–11N), metal impurities ≤0.1 ppm, controlled oxygen and carbon content
🌍 Main markets: Japan, South Korea, Germany, the United States
New Energy Materials Industry (New Energy Materials)
Polysilicon can be crushed and used for the synthesis of materials in other new energy fields, such as:
- High-temperature ceramics, composite materials, conductive materials
- Precursors of silicon-carbon negative electrode materials for lithium batteries
- Silicon-based thermal field materials and reflective materials
🔧 Demand characteristics: customizable particle size, high heat resistance, good conductivity
🌍Main markets: Brazil, India, Argentina
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Why choose Zhen An Metallurgy as your long-term partner?
30 years of production and sales experience:
Zhenan Metallurgy is located in Anyang City, Henan Province, China. It has 30 years of production experience and can produce high-quality polysilicon according to user requirements.
Customized according to customer needs:
Zhenan Metallurgy has its own metallurgical experts, and the chemical composition, particle size and packaging of can be customized according to customer requirements.
Worry-free delivery:
The annual output of Zhen’an poly silicon is 1.5 million tons, and the spot inventory is 200,000 tons. The supply is stable and the delivery is timely.
Free Samples:
Zhenan Metallurgical will give you the greatest support, and provide free polysilicon samples.
Support third-party testing:
Zhenan Metallurgical has a strict quality control system. Poly crystalline silicon has been inspected more than 3 times before leaving the factory. At the same time, we accept third-party inspections such as SGS and BV to provide you with the greatest guarantee.
Manufacturer’s strength display:
Our factory covers an area of 30,000 square meters, with a full set of modern production equipment, two large-scale production bases such as hydrometallurgy, two key laboratories and a metallurgical material testing center with 16 senior researchers.
30000(m2)
Our factory covering an area of 30,000 square meters
1500000(Ton)
Annual production and sales more than 1,500,000 tons.
Professional team to provide you with better service
Zhen An Metallurgy has a high-quality talent team integrating sales, production and R&D, including 16 senior researchers, 28 professional engineers, 35 international sales personnel, 10 senior operation personnel, and more than 300 production technicians.
Zhen An metallurgical certificate display
Our products have been exported to 78 countries, and many regular customers have visited our company and factory and placed multiple orders. After one cooperation, trust has been established with us, and customers will place orders multiple times, and some will introduce new customers to us.
Poly-Silicon Export Data
What are customers have to say
Why do our customers trust us?
Ultra-High Purity & Stable Quality
We specialize in producing solar-grade (6N) and electronic-grade (up to 11N) polysilicon using Siemens CVD and upgraded metallurgical refining processes. Using our polysilicon improved wafer yield, fewer defects, and higher downstream efficiency.Every batch is tested with ICP-MS and GDMS to ensure consistency and extremely low impurity levels.
Flexible Specifications & Customization
From chunk size to purity level, packaging type to certification needs, we provide tailored solutions based on your production process and local regulations. Custom grain size, moisture-proof packaging, third-party inspection – all available upon request. Whether you’re a solar wafer maker or a semiconductor lab, we adapt to your needs.
Strong Manufacturing Capacity
Our facility has a monthly output of 3,000–5,000 tons of polysilicon with 24/7 production capability, real-time impurity monitoring, and a complete quality assurance system. Choose us, choose your long-term partner, and support annual contract signing. We ensure both volume stability and rapid delivery for bulk orders.
Global Market Support & Local Expertise
We serve clients in 35+ countries, with dedicated regional teams fluent in English, Arabic, Spanish, Japanese, and Korean. Fast clearance in UAE, Brazil, Turkey, Japan, South Korea, and EU ports. We understand local customs requirements, trade terms, and can provide port-specific logistics solutions.
Transparent Pricing & Flexible Payment
We offer competitive factory-direct pricing with no hidden fees. Trade terms include T/T, L/C, and OA (for repeat partners). You can lock annual prices, get bulk order discounts, and receive samples before bulk purchases.
One-Stop Quality Assurance & After-Sales Service
From COA and third-party inspection to on-time delivery, technical support, and shipment tracking, we provide end-to-end service. You’ll receive real-time updates, responsive communication, and full documentation with each order.
Credibility, Professionalism And Flexibility
About silicon metal, high purity, low impurity, stable supply. That’s what we’re here for.
What services does Zhenan provide you?
In order to meet the needs of different customers, we accept the following customization:
Customized product specifications: According to the specific needs of customers, you can provide Polysilicon products with different specifications, including customized services in terms of chemical composition, size, shape, surface treatment, etc.
Customized packaging requirements: According to the specific needs of customers, you can provide different types of packaging materials and packaging methods to ensure the safety and stability of products during transportation and storage.
Customized product quality: According to the specific needs of customers, you can provide different product quality requirements, including customized services in terms of chemical composition, physical properties, surface treatment, etc.
In order to ensure the quantity and quality of the products you receive, we pay more attention to the packaging:
High pressure resistance: Our packaging has sufficient pressure resistance to withstand the pressure and impact that may occur during stacking and transportation.
Anti-shock performance: Multi-layer packaging avoids possible shock and vibration during transportation, and protects the product from damage as much as possible.
Sealing performance: add a layer of waterproof film, which has sufficient sealing performance, and can prevent air, moisture and other substances from entering the packaging, affecting the quality of raw materials.
Easy to carry: We generally use large bags that are easy to lift for packaging, which is easier to carry.
Eco-friendly and sustainable: Our packaging materials are environmentally friendly, allowing you to recycle or dispose of them safely without polluting your local environment.
If you want free samples, the process is as follows:
Contact us: Tell us your needs and contact information through the message form on the website, or send an email to our email andy@zaferroalloy.com.
Communication details: Our professional sales staff will recommend the most suitable products for you according to your needs, and ask you if you need samples. If you need samples, we will provide them to you for free.
Shipping and receipt: After the sample is shipped, we will inform you and track the logistics information of the sample to ensure that you can receive it on time.
The products provided by Zhenan Metallurgy can provide the following testing services through third-party testing agencies. These third-party testing services can provide independent, objective verification that products comply with relevant standards and regulations.
1.Purity Testing: ICP-MS / GDMS for trace metal elements (Fe, Al, Cu, etc.). Purity levels: 6N–11N (99.9999%–99.999999999%)
2.Structural Analysis: ①.XRD: Crystal structure ②.SEM: Surface and particle morphology
3.Elemental Composition: Key controls: Fe < 0.1 ppm, Al < 0.05 ppm, B < 0.3 ppm, O < 5 ppm.Verified by GDMS, ICP-MS, and SIMS
4.Physical Checks：①Particle size: 10–50 mm (customizable), Moisture content < 0.01%②Clean surface, no powder, no metal contamination