How do we ensure shipment safety?

We adhere to professional chemical packaging standards, cooperate with professional logistics companies, and provide comprehensive cargo tracking services throughout the entire transportation process.

Can we provide company qualification certificates?

we can provide business licenses, ISO certifications, Green Factory certification, product test reports and other qualification documents upon request.

Do we accept factory inspections?

we welcome on-site factory visits and inspections.

Is there a discount ?

Yes, for larger quantity, we always support with better price.

Do you test all your goods before delivery?

Yes, we perform 100% testing before delivery. Third-party inspection reports can also be provided upon request.

$High Pure Silicon Metal 441 421 Si Grade Metallic Silicon 553 for The Refractory$

High Pure Silicon Metal 441 421 Si Grade Metallic Silicon 553 for The Refractory

Name: High Pure Silicon Metal 441 421 Si Grade Metallic Silicon 553 for The Refractory
Brand: Yunnan Energy Green New Materials Co., Ltd.
SKU: 2318820175

Yunnan, ChinaYunnan Energy Green New Materials Co., Ltd.

US$1,600.00

1,000-4,999 Tons

US$1,567.00

5,000+ Tons

Sample price:US$0.00/kg.Request sample

Product profile

Feature

High Refractoriness, Thermal Shock Resistance, High Purity (Si ≥ 98.7%

Production Process

Submerged Arc Furnace Smelting

Refractoriness (℃)

1580< Refractoriness< 1770

Model NO.

3303 4210 4410 4405 5210 5510 5530

Shape

Block

Type

Silicon Metal

Appearance

Dark Gray with Metallic Luster

Melting Point

1683°C

Boiling Point

2628°C

Electrical Conductivity

Non-Conductive at Room Temp, Conductivity Increase

Density

2330 Kg/M³

Hardness

Hard and Brittle, No Ductility

Crystal Structure

Diamond Cubic Structure

Main Use 1

for Organosilicon Synthesis

Main Use 2

Substrate for Solar Cell

Main Use 3

Substrate for Semiconductor Wafers

Place of Origin

China

Transport Package

Sealed Packaging

Specification

Net weight 1000kg/ bag (1 ton/ bag)

Trademark

YONG CHANG

Origin

China

HS Code

28046900

Key features

Green Energy Production: Produced using green hydropower with energy consumption <0.6 tce/t and zero-carbon factory goals.

Comprehensive Certifications: Holds ISO 9001, 14001, 45001, 50001 certifications and National Green Factory designation.

Carbon Footprint Compliance: Core products certified for carbon footprint, compliant with EU CBAM and international standards.

Customization Support: Offers customized products tailored to specific customer needs and specifications.

100% Pre-Delivery Testing: All goods undergo 100% testing before delivery with third-party inspection reports available.

Large Scale Capacity: Annual production capacity of 200,000 tons of industrial silicon with extensive product lineup.

Company profile

Yunnan Energy Green New Materials Co., Ltd.

Yunnan, China

Business Type: Manufacturer/FactoryExport Year: 2025-12-01Nearest Port: Qinzhou Port, Huangpu Port, Shekou Port,Nansha PortAverage Response Time: ≤2.21hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): EXW, CFR, CIF, Others, FOB, DDP, DAP, FCA

AI-Powered supplier vetting

SummaryThe supplier is an industrial manufacturer focused on silicon-based new materials, silicone, PVC, caustic soda, and industrial silicon, with stated large-scale annual production capacities and export sales representing 41%–50% of total sales. It holds Level 2 Safety Production certification and is identified as a National High-Tech Enterprise, National Specialized and Sophisticated Little Giant Enterprise, and National Green Factory. The supplier has written service procedures, implementation records, corrective and preventive action procedures, and complaint-handling procedures. Its innovation base includes multiple research platforms, 55 patent applications, and participation in national, industry, group, and enterprise standards. However, it does not provide ODM services, OEM services for popular brands, or SDKs, and reports no overseas warehouses, showrooms, agents, branches, or offline trade-show participation. Financial data is referenced for 2023–2025, but no figures or detailed financial...

Supplier typeThe supplier is an industrial chemical and new-materials manufacturer operating ion-exchange membrane caustic soda and PVC production lines. Its stated product scope includes silicone, PVC, caustic soda, and industrial silicon, and it describes a complete silicon-based new-materials chain.

CertificationsThe supplier has obtained Level 2 Safety Production certification and is recognized as a National High-Tech Enterprise, National Specialized and Sophisticated Little Giant Enterprise, and National Green Factory. These are explicit certifications or recognized qualifications supporting its compliance, technology, specialization, and environmental positioning.

After-Sales capabilityThe supplier has written procedures and records for service capability assessment, corrective and preventive actions, and customer complaint handling. However, it reports no overseas warehouses, showrooms, agents, branches, or offline trade-show participation, indicating documented service processes but limited demonstrated overseas service infrastructure.

R&D capabilityThe supplier has established multiple research platforms and four provincial chief technician master studios, filed 55 patent applications, participated in multiple standards, and follows an innovation-driven development strategy. Nevertheless, it does not provide ODM services or an SDK, so its general innovation capability is evidenced, while those specific service formats are unavailable.

Production capacityThe supplier reports substantial annual capacities, including 400,000 tons of silicone, 200,000 tons of industrial silicon, 113,332.78 tons of caustic soda, and multiple PVC capacities. It also states peak- and off-season lead times within 15 working days and has an export-sales share of 41%–50%, supporting significant production and fulfillment capability.

Customization capabilityThe supplier explicitly offers minor customization and has instructions that are uniformly followed for finished-product inspection. However, it does not provide ODM services, so customization is present but limited in scope.

Product Q&A

Q:How can we guarantee quality?

Official Quality Inspection Report Product Certification Certificate Positive Customer Reputation

Q:What can you buy from us?

Chlor-alkali, industrial silicon, silicone and other series of products.

Q:What are our advantages?

The only green energy new materials enterprise; Professional R&D Team; a wide range of products; Reliable Quality Assurance; High-quality Service System;

Q:How about the lead time?

Products in stock are shipped immediately upon receipt of payment. For customized products, lead time depends on the specific order requirements.

Q:Do we support product customization?

we offer customized products tailored to specific customer needs and specifications.