On November 24, the Global BC Technology Innovation Summit and the 14th Bifi PV Workshop opened in Yiwu, Zhejiang. Dr. Liu Tao, Deputy Director of GCL Technology’s Global Silicon Materials Research Institute, was once again invited to deliver a keynote presentation titled “Development of Silane-Based Fluidized Bed Granular Polysilicon Technology.”
The presentation showcased the latest achievements in granular silicon technology, highlighting its role as a critical enabler for the expansion of the BC (Back Contact) solar cell market.

As N-type cells become the industry mainstream, BC cells—known for their superior conversion efficiency—place exceptionally stringent requirements on silicon materials. Through continuous technological innovation, GCL Technology has achieved electronic-grade purity and stability in its granular silicon products, fully meeting the demanding performance standards of BC cell manufacturing.
Powered by its proprietary silane-based fluidized bed reactor (FBR) technology, GCL’s granular silicon reduces comprehensive electricity consumption by more than 70% compared with conventional production routes, effectively balancing high material quality with low manufacturing costs and significantly improving the mass-production efficiency of BC cells.

Against the backdrop of global carbon neutrality targets, carbon footprint performance has become a decisive factor for photovoltaic products entering international markets. GCL Technology’s granular silicon features a carbon footprint substantially lower than that of traditional polysilicon, with products from certain bases setting global low-carbon benchmarks.
BC modules manufactured using granular silicon can significantly reduce carbon tax exposure and overcome overseas green trade barriers. To date, GCL’s granular silicon has obtained carbon footprint certifications from multiple countries, earning broad recognition from downstream customers. The Company’s top five customers account for over 70% of shipments, while its market share reached 24.32% in the first half of the year, underscoring its growing influence in enabling value-chain-wide carbon reduction across the photovoltaic industry.

During the summit, Dr. Liu engaged in in-depth discussions with leading experts and scholars from institutions including ISC Konstanz, the University of New South Wales (Australia), and AIKO Solar, focusing on full life-cycle innovation in BC technology and exploring collaborative optimization pathways between silicon materials and cell technologies.
GCL Technology also introduced its “Granular Silicon + CCz Crystal Growth” integrated solution. By deeply aligning material characteristics with process technologies, this approach maximizes the efficiency advantages of BC cells and delivers a full-chain low-carbon solution spanning from silicon materials to photovoltaic modules.

It is reported that through sustained technological innovation and open collaboration, GCL Technology is not only accelerating the industrialization of BC cells with granular silicon, but also driving China’s photovoltaic industry to evolve from a “carbon rule taker” to a “carbon standard setter.” This transformation injects strong momentum into the high-quality development of the global photovoltaic sector.

Looking ahead, GCL Technology will continue to deepen R&D in granular silicon technology, targeting breakthroughs toward “zero-carbon granular silicon.” By working closely with industry partners, the Company aims to build a green, efficient and sustainable photovoltaic ecosystem, further accelerating the global energy transition.