FBR granular siliconGranular Silicon-

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Granular Silicon

Focus on silicon materials
exerting efforts on granular silicon

FBR granular silicon

GCL Tech's commitment to research over the past decade has paid off with the successful development of FBR granular silicon, our breakthrough core product that fills the gap of the 100,000-ton granular silicon production capacity in the world.FBR granular silicon has obtained carbon footprint certification from China, France, and Germany, breaking the carbon footprint record previously held by Siemens method rod silicon and establishing itself as the new benchmark for carbon footprint in the international semiconductor materials industry.

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Exquisite craftsmanship for the quality of products

FBR granular silicon feature a total metal impurity content of 5 elements ≤ 0.5 ppbw, with over 95% of products meeting this standard. For 18 elements, the total metal impurity content is ≤ 1 ppbw, with more than 91% of products meeting this criterion. Additionally, more than 97% of the products have turbidity ≤ 100 NTU, while over 41% of the products achieve a turbidity of ≤ 70 NTU.

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Product Features

High quality, can reach electronic grade standards

The quality of FBR granular silicon products is excellent and has passed the verification of N-type monocrystals; it is spherical in shape, has good fluidity, better meets the size requirements of re-feeding, and the efficiency of re-feeding has been improved.

Purity can reach electronic grade to meet the needs of the N-type supply chain

Better meet the technical requirements of RCz and CCz monocrystalline silicon

FBR technology with independent intellectual property rights

Low cost, excellent carbon footprint performance

In 2025, GCL Tech’s granular silicon was certified by the French ADEME, with a conservative CO₂ equivalent calculation of 14.441 kg per unit used in downstream production. Compared to the optimal level of rod-shaped silicon, granular silicon reduces CO₂ emissions by approximately 10.48 million tons annually, contributing a potential carbon reduction value of over 939 million RMB to China each year.