Sustained summer heat and the traditional consumption off-season have dragged down overall activity in China’s chemical market, yet the white carbon black sector has avoided the sluggish downturn marked by price cuts and inventory clearance seen in previous off-seasons. The operational logic of the industry has undergone quiet shifts. The most prominent feature at present is market polarization: conventional precipitated silica edges up slightly supported by exports and rigid domestic demand, while low-end homogeneous fillers remain under strain from overcapacity. High-end fumed silica for photovoltaic, lithium battery and electronic applications stays tight in supply with firm prices. Intertwined factors including raw material costs, varied production rates, evolving downstream demand and adjustments in international trade policies are pushing the industry to bid farewell to the era of extensive mass production at a fast pace.

　　Upstream raw material prices vary across regions, and mild cost hikes have underpinned the market bottom. Sodium silicate and sulfuric acid serve as two core feedstocks for precipitated silica production, whose prices differ greatly in various regions this month. Ample capacity release has kept soda ash prices lingering at a low level for a long time, effectively offsetting cost increases brought by modest quartz sand price rises. Affected by summer environmental inspections and staggered high-temperature production limits, small and medium-sized sodium silicate manufacturers in East and South China have slashed operating rates, tightening local supply and lifting factory prices moderately. North and Northwest China boast sufficient raw material reserves and relaxed supply-demand relations, with prices largely unchanged from earlier periods. The sulfuric acid market presents a stark north-south contrast: off-season demand from southern fertilizer and metallurgical sectors shrinks sharply, leading to inventory accumulation and minor price declines; northern prices inch up backed by overseas orders and local heavy industrial demand. Overall, the production cost per ton of finished white carbon black sees only a limited uptick, insufficient to fuel a major market rally yet effectively curbing steep price drops during the off-season. Leading enterprises maintain solid cost advantages through long-term fixed-price procurement contracts, widening the gap with small and medium manufacturers.

　　Polarized production rates become increasingly evident: major manufacturers run at full capacity to secure orders, while small and medium enterprises opt for maintenance to evade risks. At this stage, the comprehensive national operating rate of white carbon black stabilizes between 75% and 80%. Leading firms hold abundant order backlogs scheduled all the way to late September, operating production lines nonstop round the clock and keeping inventories at a healthy low level. They prioritize supplies for major tire conglomerates, silicone manufacturers and long-term overseas partners, with no intention to dump inventories at discounted prices. A large number of small and medium precipitated silica producers face mounting operational pressure. High temperatures accelerate equipment wear, paired with more frequent environmental inspections, making stable continuous production difficult. Restricted to basic rubber reinforcement applications, they lack customized modification technologies for hydrophilicity, hydrophobicity and high specific surface area, resulting in weak customer loyalty. To recover working capital, some factories accept orders at slight discounts, dragging down overall prices of low-end products. New capacity is released slowly, with no large-scale new production lines scheduled for commissioning in the near term, which cannot alter the current supply-demand structure. Fumed silica features high technical barriers, with premium domestic capacity concentrated among a handful of enterprises. High-end modified grades tailored for new energy and semiconductors remain scarce, accompanied by extended delivery cycles, a supply shortage hard to ease in the short run.

　　The transition between old and new downstream demand momentum accelerates: traditional industries shore up the overall market, while emerging high-end fields drive incremental growth. Tires remain the largest consumption scenario for white carbon black, accounting for over 60% of total demand. Domestic automobile production and sales recover steadily alongside rising penetration of new energy vehicles, boosting output of low rolling-resistance green tires. New energy vehicle tires require a higher proportion of white carbon black, nearly 20% more than fuel vehicle tires, continuously depleting inventories of high-dispersity precipitated silica. Nevertheless, the automobile market is in its traditional off-season, and major tire companies adopt on-demand procurement and low-inventory strategies without large-scale stockpiling, failing to trigger a buying spree. Demand for traditional rubber products such as hoses, conveyor belts and footwear rubber stays muted, only covering routine replenishment and exerting little pulling effect on the market.

　　Emerging sectors including photovoltaic encapsulant adhesives, lithium battery diaphragm coatings, potting compounds for 3C electronics, optical fiber cladding, daily care products and pharmaceutical excipients have evolved into the core growth engine for high-end white carbon black. Accelerated capacity expansion of new-generation photovoltaic cells fuels robust demand for silicone sealants used in module encapsulation, making high-specific-surface-area fumed silica — a vital reinforcing and thickening ingredient — in short supply. Demand for impurity-free high-purity fumed silica surges year on year in lithium batteries and solid-state battery packaging. In addition, demand rises steadily for weather-resistant construction sealants, industrial anti-corrosion coatings, ink matting agents and food anti-caking agents, with full order books for various customized modified special grades. Exports maintain a robust momentum. Purchasing demand for building materials and rubber goods from Southeast Asia stays stable. Constrained by the EU Carbon Border Adjustment Mechanism and tire energy efficiency regulations, European buyers show greater preference for environmentally compliant Chinese white carbon black, which effectively absorbs surplus domestic low-end capacity and stabilizes domestic spot prices. Many domestic enterprises have built overseas production bases to circumvent trade barriers and further expand global sales channels.

　　Price gaps between different products keep widening, forming a complete market tier system. The mainstream negotiated ex-factory price of general rubber-grade precipitated silica ranges from 5800 to 6200 CNY per ton; ultra-fine 1250-mesh high-activity precipitated silica, widely used in high-end silicone rubber and electronic seals, is priced between 8300 and 8600 CNY per ton; food and pharmaceutical high-purity grades undergo stringent production control with steady prices of 6400 to 6700 CNY per ton. The price hierarchy of fumed silica is even more pronounced: conventional domestic Grade 200 fumed silica costs 20 to 23.5 CNY per kilogram; hydrophobic modified high-end grades are priced at 25 to 28 CNY per kilogram; ultra-high-purity semiconductor-specific grades imported from Europe and the US sell for 28 to 38.5 CNY per kilogram and remain chronically undersupplied. Clear regional price disparities exist nationwide: Central China registers a lower average price for general industrial white carbon black; South China offers moderate prices for rubber-grade products; Shandong boasts a complete industrial chain and full product categories, with cheap low-end powder and notable premiums for high-end modified products. Traders allocate goods based on actual demand, and overall market transactions proceed in a rational and mild atmosphere.

　　The rollout of new environmental regulations coupled with adjustments to the global trade landscape has established low-carbon production and domestic substitution as the long-term development themes of the industry. The revised clean production standards for silicon-based new materials have been fully enforced, tightening thresholds for wastewater recycling rates and waste gas pollutant emission limits. Backward inefficient capacities failing environmental assessments are being phased out rapidly, lifting industrial concentration and steadily expanding the market share of leading enterprises. The official launch of the EU Carbon Border Adjustment Mechanism covers carbon emission accounting across the entire chain from raw material extraction to finished product delivery, compelling domestic enterprises to upgrade production techniques. Rice husk-based bio-synthetic white carbon black and low-temperature energy-saving synthesis processes have gradually achieved large-scale mass production, markedly enhancing the export competitiveness of green low-carbon products. Frequent overseas anti-dumping and anti-subsidy investigations have accelerated the domestic substitution of high-end fumed silica. At present, the self-sufficiency rate of domestic high-end fumed silica has increased substantially, and only ultra-high-purity specialty grades for semiconductor applications still rely on small-volume imports.

　　Multiple chemical research institutions have released forecasts for the future market trend: from late August to early September, the market will continue its mild upward trend, with conventional precipitated silica expected to rise by 100 to 300 CNY per ton. Supported by rigid demand from new energy industries, high-end fumed silica prices will hold firm with limited downside. Upon the arrival of September, rubber and coating industries will enter their traditional consumption peak, and concentrated pre-holiday stocking demand ahead of the Mid-Autumn Festival and National Day will drive the overall white carbon black market into an upward cycle. In the long run, the extensive development model centered on vicious price competition has come to an end. Surface modification technology, customized formula development, low-carbon eco-friendly production processes and ultra-fine high-purity processing capabilities will serve as core benchmarks to distinguish enterprise competitiveness. Leading enterprises will keep expanding market share by leveraging strengths in production capacity, technology, customer resources and cost control, while the living space of small and medium manufacturers relying on homogeneous low-end products will continue to shrink. The whole industry will forge ahead steadily toward refined customization, high-end application and green low-carbon production.