Qaraganda Power Silicon
High-Quality Silicon Materials for Solar and Electronics
Reliable Supply of Industrial Silicon
Trusted worldwide for stable, high-quality supply
High-Purity Silicon Materials (6N–9N+)
Engineered for solar & semiconductor — stable and pure.
Our Partners
About Us
Qaraganda Power Silicon is a leading polysilicon manufacturer based in Qaraganda city, Qaragandy region, Republic of Kazakhstan. With over 10 years of production experience, we specialize in producing high-quality solar-grade and electronic-grade polysilicon that meets international standards.
Our company employs experienced metallurgical experts capable of providing customized solutions based on customer requirements, including adjustments in chemical composition, particle size, and packaging. Each order is produced under strict quality control to ensure consistency, reliability, and high performance.
The factory covers an area of 10,000 square meters and is equipped with two large hydrometallurgical production bases, two key laboratories, and a metallurgical materials testing center with 16 senior researchers. With an annual output exceeding 500,000 tons, we guarantee stable supply and on-time delivery for every client.
We also offer free polysilicon samples and support independent third-party testing (including SGS and BV inspections) to ensure transparency and quality assurance for all our partners.
Why Our Customers Trust Us
Our polysilicon is renowned for its exceptional purity and consistency, significantly improving your productivity. Whether you are a silicon wafer manufacturer, solar panel manufacturer, or silicon material trader, our products offer reliable performance and cost-effective solutions. Our robust logistics network covers your location, ensuring on-time delivery.
Ultra-High Purity & Stable Quality
We produce 6N–9N polysilicon using Siemens refining technology, ensuring consistent quality, low impurities, and maximum efficiency for solar and electronic applications.
Flexible Specifications & Customization
Custom granule size, packaging, and certification — tailored to meet your production requirements and regional standards.
Strong Manufacturing Capacity
Our plant produces 3,000–5,000 tons monthly with 24/7 quality monitoring, ensuring reliability for large-scale bulk orders.
Global Market Support & Local Expertise
We serve over 35 countries with multilingual teams across Kazakhstan, Turkey, South Korea, and Europe, offering local technical support.
Transparent Pricing & Flexible Payment
Competitive factory pricing with no hidden fees — supporting T/T, L/C, and OA terms for long-term partners and distributors.
Quality Assurance & After-Sales Service
Full documentation, COA, shipment tracking, and responsive technical support ensure a smooth end-to-end experience.
Our Silicon Product Range
High-quality silicon materials for solar energy, electronics, and industrial applications.
Polysilicon
High-purity polycrystalline silicon widely used in photovoltaic cells, semiconductors, and electronics.
Polysilicon Blocks
Core raw material for solar panels and integrated circuits, offering stability and consistent performance.
Silicon Rod
Durable silicon rods with excellent conductivity and thermal resistance, ideal for advanced applications.
Polysilicon Ingots
Reliable silicon ingots with high purity and chemical stability for solar and semiconductor industries.
Granular Polysilicon
Uniform, high-purity granules designed for efficient energy conversion in solar technologies.
Silicon Metal Block
Industrial-grade silicon blocks with high melting point and metallic luster, used in alloys and metallurgy.
Silicon Metal Granular
Granular silicon with stable composition, ideal for metallurgy, chemicals, and industrial processes.
Silicon Powder
Fine silicon powder with uniform particle size, widely applied in electronics, chemicals, and ceramics.
Silicon Briquette
Compressed silicon material designed for easy handling, storage, and controlled usage in metallurgy.
Silicon Slag
By-product rich in silicon, used in steelmaking and metallurgy to improve efficiency and reduce costs.
Specifications
Qaraganda Solar Silicon produces high-purity polysilicon materials ranging from 4N to 11N grades (up to 99.999999999% purity). Using an advanced Siemens-based manufacturing process, we maintain ultra-low impurity levels — with boron below 0.3 ppb, phosphorus below 0.5 ppb, and carbon below 0.5 ppm — ensuring premium-grade raw materials for high-efficiency solar wafers and electronic applications
| Parameter | Solar Grade | Electronic Grade | Remarks |
|---|---|---|---|
| Purity | 6N (99.9999%) | 11N (99.999999999%) | Tested by GDMS |
| Grain Size | 10–50 mm (customizable) | 1–10 mm cut to spec | Help prevent crystal defects |
| Carbon Content (C) | ≤ 0.2 ppm | ≤ 0.2 ppm | Choose grade based on application |
| Oxygen Content (O) | ≤ 0.5 ppm | ≤ 0.5 ppm | Cleaning recommended before processing |
| Hydrogen Content (H) | ≤ 0.3 ppm | ≤ 0.3 ppm | Moisture proof airtight packaging |
| 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 |
Beyond Polysilicon Production
Qaraganda Solar Silicon is not limited to polysilicon production — we also specialize in metallic silicon and silicon powder, designed for use in advanced technologies, solar power generation, and modern industrial manufacturing.
With strict quality control and flexible customization, our products ensure reliable performance for every application.
| Grade | Si (%) | 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 2202 | 99.58 | 0.20 | 0.20 | 0.02 | ≤0.004 |
| Silicon Metal 2502 | 99.48 | 0.25 | 0.25 | 0.02 | ≤0.004 |
| Silicon Metal 3303 | 99.37 | 0.30 | 0.30 | 0.03 | ≤0.005 |
| Silicon Metal 411 | 99.40 | 0.40 | 0.10 | 0.10 | ≤0.005 |
| Silicon Metal 421 | 99.30 | 0.40 | 0.20 | 0.10 | – |
| Silicon Metal 441 | 99.10 | 0.40 | 0.40 | 0.10 | – |
| Silicon Metal 551 | 98.90 | 0.50 | 0.50 | 0.10 | – |
| Silicon Metal 553 | 98.70 | 0.50 | 0.50 | 0.30 | – |
| Off-Grade Silicon | 96.00 | 2.00 | 1.00 | 1.00 | – |
Supply Information
| Supply Capacity | Up to 3,000 Metric Tons per Month |
|---|---|
| Minimum Order Quantity | 20 Metric Tons |
| Product Type | Form | Available Size Range |
|---|---|---|
| Silicon Metal Powder | Fine Powder | 0 mm – 5 mm |
| Silicon Metal Grit / Sand | Granular | 1 mm – 10 mm |
| Silicon Metal Lump / Block | Solid Chunk | 10 mm – 200 mm (Tailor-made sizes available) |
| Silicon Metal Briquette / Ball | Compressed Form | 40 mm – 60 mm |
Excellent Physical Properties
- Uniform particle size distribution: 10–100 mm standard particle size to meet the processing needs of different customers.
- Stable crystal structure: Compact polycrystalline structure with excellent thermal stability.
- High surface finish: After precision cleaning process, no contaminants remain on the surface.
- Good mechanical strength: High compressive strength with breakage rate during transportation less than 0.1%.
Solar grade polysilicon (SG-Si)
- 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: Athe 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.).
Electronic grade polysilicon (EG-Si):
- 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.
Advantages of choosing us :
- 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.
Applications of Polysilicon
Photovoltaic Industry
Polysilicon is the essential raw material for solar cells and modules. Qaraganda Solar Silicon provides high-purity silicon used in:
- Casting of mono- and poly-crystalline silicon ingots
- Solar wafer slicing and high-efficiency cell production (PERC, TOPCon, HJT)
- Photovoltaic power stations and BIPV projects
Demand characteristics: purity ≥ 6N, uniform particles, low impurities, stable pricing
Main markets: Middle East, South America, Europe, Japan, South Korea
Semiconductor Industry
Electronic-grade polysilicon from Qaraganda Solar Silicon is used as an upstream material for semiconductor chip manufacturing, including:
- Single-crystal silicon rod pulling (CZ method, FZ method)
- Integrated circuits, microprocessors, and memory chips
- MEMS sensors and optoelectronic components
- Power management chips and automotive-grade devices (IGBT, MOSFET)
Demand characteristics: ultra-high purity 9N–11N, impurities < 0.1 ppm, controlled O and C levels
Main markets: Japan, South Korea, Germany, United States
New Energy Materials Industry
Polysilicon can also be processed for use in next-generation energy materials, such as:
- High-temperature ceramics, composites, and conductive materials
- Silicon-carbon anode precursors for lithium batteries
- Silicon-based thermal-field and reflective materials
Demand characteristics: customizable particle size, high heat resistance, excellent conductivity
Main markets: Brazil, India, Argentina
Frequently Asked Questions (FAQ)
What is polysilicon used for?
Polysilicon is the core raw material for solar cells, semiconductors, and integrated circuits. It provides high purity, stability, and efficiency for energy and electronics.
Do you provide customized purity or forms (block, granular, powder)?
Yes, we can supply polysilicon and metallurgical silicon in different purities and forms according to your industrial needs.
What is the difference between polysilicon and metallurgical silicon?
Polysilicon is ultra-high purity silicon mainly used for solar and semiconductor industries, while metallurgical silicon is used in alloys, metallurgy, and chemicals.
How do you ensure product quality?
We follow strict international standards, quality testing, and certification processes to guarantee purity, stability, and performance.
Can you export internationally?
Yes, we are an international supplier with logistics support for global shipments.
How can I request a quotation?
You can click the “Request Quote” button in the Products section or contact us directly. Our team will provide details within 24 hours.
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