On November 4, 2025, Yongxiu, Jiangxi Province reported that in Yongxiu County, known as the "Organic Silicon Capital", a comprehensive organic silicon industry ecological upgrading action with the theme of "Innovation Driven · Ecological Empowerment" is being launched. Relying on a complete industrial chain foundation and a collaborative mechanism between industry, academia, and research, Yongxiu County recently announced the introduction of core technologies from international giants such as Germany's Wacker Chemicals and Japan's Shin Etsu Chemicals, and joined forces with local enterprises such as Jiangxi Xingzemei Organic Silicon and Rongxin Technology to jointly overcome bottleneck technologies such as bio based silicone rubber and high-purity silicon carbide powder, promoting the industry's transition towards high-end and green development.


Technological breakthrough: Dual line integration of biobased materials and silicon carbide
At the pilot base of Yongxiu Xinghuo Industrial Park, the world's first 10000 ton bio based silicone rubber production line has entered the trial production stage. This project is jointly developed by the Institute of Process Engineering of the Chinese Academy of Sciences and Yongxiu Enterprise. It uses rice husk to produce highly active silane technology, which reduces raw material costs by 30% compared to petroleum based routes, and achieves zero carbon emissions in the production process. At the same time, the 8-inch silicon carbide substrate project jointly developed by Hesheng Silicon Industry and Wacker Chemicals has made a breakthrough, with a yield rate of 92%. The research and development of 12 inch substrates has entered the pilot stage, and it is expected to achieve mass production by 2026, which will directly serve high-end fields such as new energy vehicles and photovoltaic inverters.


The industrialization of bio based silicone rubber marks the complete elimination of China's dependence on fossil raw materials for organic silicon materials, "said Liao Jun, Vice Chairman of the China Fluorosilicone Organic Materials Industry Association. Data shows that in the first three quarters of 2025, the output value of Yongxiu's organic silicon industry cluster will exceed 50 billion yuan, and the proportion of high-end products will increase from 45% in 2024 to 62%. The growth rate of sub sectors such as medical grade silicone and electronic packaging materials will reach 300%.


Ecological Construction: Five Platforms Support Full Chain Innovation
Yongxiu County has established a complete closed loop from the laboratory to the workshop by building five public platforms: "Organic Silicon Pilot Base - Provincial Testing Center - Industrial Brain - Achievement Transformation Center - Chemical Training Base". For example, the Jiangxi Xingzemei Organic Silicon Utilization Pilot Base has shortened the research and development cycle of acyloxysilane from 18 months to 9 months, and the product performance has reached the international leading level; Rongxin Technology achieves digital control of the entire production process through the "Industry Brain" platform, increasing equipment utilization by 25% and reducing energy consumption by 18%.


In addition, Yongxiu has established a 30 million yuan "Organic Silicon Innovation Award Fund" to provide a 30% subsidy for key technology research projects. In 2025, the number of newly authorized organic silicon patents in the county will increase by 54% year-on-year, with invention patents accounting for 41%. "We should not only introduce technology, but also cultivate local innovation ability." Li Ming, secretary of Yongxiu County Party Committee, said, "In the next three years, we plan to build three more national R&D centers to attract top talents from all over the world."


Market Expansion: A Leap from "Following" to "Leading"
With the breakthrough of technological barriers, Yongxiu's silicone products are accelerating their penetration into the high-end market. In the medical field, the biodegradable silicone rubber vascular stent developed by Hubei Jianghan New Materials has entered the clinical stage, and the market size is expected to exceed 20 billion yuan by 2028; In the field of new energy, Huitian New Materials' silicone adhesive products have successfully replaced Dow Chemical as the main supplier of Longi Green Energy and Tongwei Shares with low-carbon certification, and the export volume will increase by 120% year-on-year in 2025.


The EU's carbon footprint tracing policy once caused us to lose 15% of European orders, but now, bio based materials and low-carbon processes have become our core competitiveness, "said Wang Qiang, Technical Director of Huitian New Materials. Data shows that in the first three quarters of 2025, the export value of Yongxiu's organic silicon products reached 8.7 billion yuan, accounting for 28% of the national total. Among them, the proportion of exports to the European Union increased from 12% in 2024 to 22%.