With the continuous implementation of China’s dual-carbon goals, the chemical industry faces mounting pressure for carbon reduction. The silica industry is experiencing a wave of raw material route innovation. For a long time, the production of precipitated silica has heavily relied on sodium silicate made from quartz sand and soda ash as the basic raw material. This process consumes large amounts of fossil energy and results in a high carbon footprint throughout the product life cycle. As downstream tire and new material brands set carbon neutrality targets, end customers impose stricter requirements on silica suppliers for low-carbon certifications and carbon traceability data. This forces domestic powder enterprises to accelerate the development of new processes for silica production using non-traditional raw materials. At present, the market no longer simply competes on unit price. Carbon indicators and low-carbon product qualifications have become mandatory thresholds in high-end customer bidding and procurement, reshaping the value evaluation system of the whole industry.

  On the supply side, leading domestic silica manufacturers have launched pilot construction projects, focusing on technological routes for silica extraction from rice husk ash, fly ash and other industrial solid waste. Recycling such waste raw materials can greatly cut carbon emissions during production and reduce environmental pressure caused by solid waste landfilling. Nevertheless, the new technologies still face multiple technical bottlenecks at this stage. Fluctuations in raw material composition affect the stability of specific surface area and dispersibility of silica, and the purification cost for mass production is higher than that of traditional precipitation processes. Many enterprises adopt a dual-line strategy: traditional production lines guarantee stable delivery of basic orders, while new pilot lines continuously optimize process parameters for bio-based and solid-waste derived silica. For conventional grade production lines, enterprises in major producing regions keep carrying out ultra-low emission upgrades with improved desulfurization, denitrification and wastewater recycling facilities. Rising environmental operation costs further squeeze profit margins of ordinary silica products. Some small and medium-sized factories face restricted capacity release due to high environmental investment and capital pressure. Backward capacity is continuously phased out, and market resources are concentrating toward leading enterprises. In terms of regional layout, the southwest region boasts abundant hydropower resources, giving it natural advantages in low-carbon powder production. The East China production area sits close to downstream tire and coating customers, focusing on fast delivery and technical supporting services. The two regions form a pattern of differentiated competition.

  On the demand side, demand growth for low-carbon silica is concentrated among multinational tire brands, new energy materials and high-end coatings. Global leading tire manufacturers prioritize purchasing low-carbon reinforcing fillers for green tire production in their global supply chains and are willing to pay a premium for silica with low-carbon certifications. In lithium battery and silicone rubber sectors, downstream enterprises require complete carbon footprint reports for product exports, driving upstream powder suppliers to match low-carbon grade products. However, buyers in traditional low-end downstream markets such as ordinary rubber products and cheap filling materials still prioritize price and show low sensitivity to carbon indicators. Solid waste-based silica cannot rapidly replace general-purpose silica in the short run. In addition, converting downstream customers’ usage habits requires time. New silica grades need lengthy formula testing and stability verification before large-scale introduction to production lines. Besides the low-carbon track, demand for ultrafine and hydrophobically modified special silica grows simultaneously, opening new market space in pharmaceutical carriers, cosmetics and 3D printing powder, forming a demand structure with multiple tracks developing in parallel.

  In foreign trade, green trade barriers in Europe and America keep tightening as the Carbon Border Adjustment Mechanism is gradually rolled out. Importers impose increasingly strict carbon verification requirements on imported powder materials. Domestic silica with low-carbon certifications gains prominent advantages in overseas bidding, with export orders growing steadily. By contrast, for ordinary silica, continuous capacity expansion of local production in Southeast Asia and South America enables local products to seize basic markets at low cost, intensifying export competition and price pressure for domestic general grades. Many foreign trade enterprises adjust their product export mix, reducing sales of low-margin basic silica and stepping up overseas promotion of low-carbon modified silica, complete with carbon footprint test reports to raise product added value.

  In terms of industrial chain supporting sectors, the upstream silicon source recycling and carbon footprint testing industries embrace development opportunities. Third-party testing institutions receive more orders to provide full-life-cycle carbon accounting for powder enterprises. R&D cooperation along the downstream chain becomes closer. Silica enterprises no longer merely sell powder products, but deeply participate in customer formula development and customize modification solutions according to application scenarios, transforming from material suppliers to integrated powder solution service providers.

  Industry outlook: In the short term, bio-based and solid waste-derived silica are still in the early stage of industrialization with limited production capacity, unable to shake the dominant market position of traditional precipitated silica, which will remain the main supply of the market. In the medium and long term, with continuous process optimization and large-scale production launch, the production cost of low-carbon silica will gradually decline and its market penetration will keep rising. Future industry competition will no longer be limited to production capacity and price. Raw material routes, carbon management capability and technical service capability will become enterprises’ core competitiveness. Leading companies that can connect solid waste recycling, powder synthesis and carbon certification across the whole chain will seize opportunities in the new round of industrial transformation. Environmental protection and dual-carbon policies will remain stringent for a long time, accelerating industrial reshuffling. Small and medium-sized enterprises face heavy transformation pressure, and industrial concentration will further increase. The silica industry as a whole will continue to evolve toward greening, functionalization and customization.