Recently, fluctuations have intensified in the domestic chemical raw material market. Tightened safety controls and reduced coking coal output have continuously constrained the supply of coal tar, the feedstock for carbon black. Carbon black prices have trended upward rapidly, widening the price gap with silica. This has prompted tire manufacturers to reassess formulations for reinforcing fillers, accelerating the substitution of silica in green tire applications. According to the latest market quotations, benchmark prices of domestic precipitated silica remain generally stable. General rubber-grade products see a balanced supply and demand, with transactions dominated by long-term orders from established customers and limited negotiation room for spot orders. In contrast, highly dispersed modified silica and fumed silica maintain tight order books, lengthening downstream delivery cycles. High-end grades command stronger pricing power, further amplifying the industry’s structural feature of “low-end oversupply and high-end shortage”. Many tire manufacturers have proactively raised silica loading ratios in new formulation development to offset cost pressures from rising carbon black prices while meeting performance targets for low rolling resistance tires.

　　Tires remain the largest downstream market for silica. Low-carbon tire regulations worldwide continue to tighten, with updated EU tire label rules and new supporting standards for new energy vehicles in China. New energy passenger car tires, heavy-duty radial tires, and off-the-road engineering tires are all evolving toward low rolling resistance, high wet grip and extended wear mileage. Featuring a unique porous network structure, silica forms stable bonds with rubber molecular chains once incorporated into rubber compounds. It improves tensile strength, tear resistance and wear performance while markedly reducing tire rolling resistance to cut vehicle energy consumption, balancing energy conservation and driving safety. It has become an indispensable core reinforcing filler in green tire formulations. Nevertheless, native silica surfaces are rich in silanol groups with high polarity. Direct mixing easily causes powder agglomeration and poor dispersion, impairing rubber processability and leading to uneven mixing and surface defects on rubber compounds. Accordingly, surface modification technology, mixing process optimization and matching coupling agent selection stand as core priorities in tire formulation research and development. Different tire categories impose distinct requirements on silica indicators including specific surface area, pore size distribution and surface activity. New energy tires demand higher loading levels of highly dispersed silica and stricter standards for batch stability and impurity content, subjecting formulations to more rigorous validation.

　　Beyond the tire sector, silica application scenarios keep expanding, with emerging markets contributing incremental demand. Modified silica is steadily gaining market share in silicone rubber, coatings, adhesives, personal care, agrochemical additives, lithium-ion battery separator coatings and photovoltaic encapsulation materials. Thanks to its nanoscale particle size and outstanding reinforcement, thickening, thixotropy and anti-settling properties, fumed silica enjoys faster demand growth in silicone sealants, electronic potting adhesives, photovoltaic encapsulating films and battery coating materials than in traditional rubber sectors. In the coating industry, hydrophobic silica serves as a matting and anti-settling agent to enhance scratch resistance and weatherability of paint films. In daily chemical products, surface-treated silica acts as a rheology modifier to improve skin feel and fluidity in skincare and color cosmetics. Meanwhile, low-carbon production routes are being gradually implemented. Technologies for silica production from biomass silicon sources such as rice husk ash keep maturing, enabling silicon resource recycling using agricultural solid waste. This route delivers lower carbon emissions and superior energy efficiency compared with conventional routes based on quartz sand and sodium silicate, making it a key focus for leading manufacturers. Some pilot production lines have entered trial operation.

　　On the supply side, China has sufficient overall silica capacity yet severe product differentiation. Conventional precipitated silica suffers from overcapacity. Small and medium manufacturers compete fiercely in the low-end segment with shrinking profit margins. Some producers adjust operating rates in response to market swings and cut output passively to hedge risks. There remains a supply gap for highly dispersed, ultra-pure modified silica tailored for high-end tires and electronic materials, leaving considerable room for import substitution. Leading enterprises prioritize research on surface modification systems. By adjusting coupling agent types, controlling reaction temperature and duration, and optimizing post-treatment processes for powders, they balance powder dispersion, reinforcing effect and processing fluidity to meet differentiated formulation requirements from downstream clients, while providing supporting formulation testing and technical services. Still, multiple constraints persist. Tire formulation certification cycles are lengthy, often taking 2 to 4 years for new materials to complete verification, leading to an obvious lag in demand release. Silica production also consumes soda ash, sulfuric acid, large volumes of industrial water and electric power. Volatile prices of coal and basic chemicals continuously pressure corporate costs and squeeze profit margins. In addition, stricter environmental regulations raise investment in wastewater, waste gas and solid waste treatment, lifting industry entry barriers and accelerating the phase-out of backward capacity.

　　Changes are also unfolding in overseas markets. High-end tire and new material enterprises outside China show steadily growing procurement demand for premium silica made in China, making export orders an important growth driver for domestic leading producers. Rubber product industries in Southeast Asia, Europe and America continue to recover. Coupled with limited capacity expansion of local high-end silica overseas, domestic modified silica is gaining stronger export competitiveness.

　　Market analysts point out that silica will maintain a differentiated trend in the short term. Prices of standard grades stay stable, with orders fluctuating following peak and off-peak seasons of downstream rubber and coating industries. High-end modified products hold firm prices backed by tight order books. In the medium to long run, the implementation of low-carbon tire policies, expanding demand from new energy and electronic materials, and rising export volumes will collectively support growth in high-value silica. Industry competition will shift from pure price wars toward formulation support services, custom powder development and reliable product certification systems. Manufacturers mastering core modification technologies and complete downstream customer certification systems will gain greater market initiative, as industrial resources keep concentrating on leading players.