The fiberglass industry is experiencing increasing divergence in its business climate; how much growth potential do high-quality sub-sectors possess?
In 2026, the fiberglass industry exhibited a distinct structural trend, with a widening gap in prosperity between different sectors. Significant stratification emerged across various sub-sectors in terms of demand growth potential, supply-demand balance, and corporate profitability. Based on product characteristics and downstream applications, the fiberglass market can be categorized into three main segments: high-end fiberglass for new energy, special fiberglass for AI and electronic applications, and traditional general-purpose fiberglass. Each of these three sectors possesses its own independent growth logic, with clearly identifiable paths for industrial upgrading and market evolution.
New Energy Fiberglass forms the core growth engine of the industry, ranking at the top of the industry's prosperity spectrum.
New energy fiberglass encompasses a comprehensive product system including high-modulus ECR fiberglass for offshore and onshore wind power, energy storage anti-corrosion materials, and lightweight composite materials for new energy vehicles. It represents the sector with the strongest growth certainty and best profitability stability in the fiberglass industry in 2026. Calculations show that the domestic new energy fiberglass market size will surpass 52 billion yuan this year, with a year-on-year growth rate of 16.5%, significantly exceeding the industry average.
The wind power market is the largest source of growth for this sector. Large-megawatt offshore wind turbines are widely deployed domestically, and deep-sea wind power projects are being constructed in batches. Ultra-long wind turbine blades (hundred-meter-long) are gradually replacing older short blades, and high-modulus ECR fiberglass has become the standard raw material for blade manufacturing, gradually phasing out conventional E-fiber products. In 2026, the domestic demand for high-modulus fiberglass for wind power is expected to reach 2.1 million tons, a year-on-year increase of 18%. Insufficient supply of high-end qualified production capacity and tight orders have become the norm in the market. In the new energy vehicle industry, the demand for lightweight modifications in body structural components, chassis parts, and battery casings is continuously increasing, and the trend of fiberglass composite materials replacing traditional metal materials is becoming increasingly stable, continuously driving up the demand for high-strength fiberglass products. Meanwhile, the complex operating environment of energy storage equipment places stringent requirements on the corrosion resistance, weather resistance, and insulation properties of materials, helping to steadily increase the market penetration rate of corrosion-resistant special fiberglass, laying a solid foundation for the long-term stable development of this sector. The superposition of multiple downstream demands ensures that new energy fiberglass has long maintained its position as the industry's leading growth engine.
AI drives a shortage of specialty electronic and electrical fiberglass, accelerating the localization of high-end products.
Electronic fiberglass is the highest value-added and most technologically advanced segment within the fiberglass category, broadly categorized into ordinary electronic fiberglass and high-frequency ultra-thin specialty electronic fiberglass. In 2026, the AI server, high-speed communication switch, high-end printed circuit board, and semiconductor packaging substrate industries experienced explosive growth, leading to a concentrated release of demand for high-frequency, low-dielectric, ultra-thin, and homogeneous specialty electronic fiberglass. The market size exceeded 23 billion yuan for the year, a significant year-on-year increase of 22%, making it the most elastic sector in the industry.
Ordinary electronic fiberglass mainly supplies the consumer electronics and low-end PCB markets, with moderate demand, ample market capacity, and fierce industry competition. 1015/1027 ultra-thin fiberglass, low-dielectric modified fiberglass, and quartz fiberglass, suitable for 800G, 1.6T high-speed optical module transmission and high-precision circuit boards, have long been monopolized by foreign companies, with extremely high technological barriers and a scarcity of domestic supply. In 2026, leading domestic fiberglass companies made continuous breakthroughs in process research and development, steadily expanding the mass production scale of high-end electronic fiberglass and increasing the localization rate year by year. This effectively broke the long-term market monopoly of Japanese and Taiwanese companies, making the high-end electronic fiberglass sector the most important blue ocean for value growth in the fiberglass industry.
Traditional general-purpose fiberglass entered a period of stock optimization, with the industry maintaining a low-speed and stable operating state
General-purpose fiberglass used in building insulation materials, various pipes, sanitary ware products, ordinary industrial parts, and traditional fuel vehicle parts belongs to the existing basic market of the industry. Overall demand growth is slow, and market competition is fierce. In 2026, the traditional general-purpose fiberglass market size was approximately 70 billion yuan, with a year-on-year growth rate of only about 3%, consistently exhibiting characteristics of low growth, low gross profit, and small price fluctuations.
This sector has low entry barriers, and the market is filled with a large number of small and medium-sized manufacturers. Past blind expansion has led to a long-term oversupply in the industry, and the problem of product price inflation is difficult to resolve. In 2026, with the continued implementation of supply-side reforms in China and tightened environmental inspections and energy consumption control policies, a large amount of low-end and ineffective production capacity gradually exited the market, leading to a slight recovery in the supply-demand relationship of the sector. However, compared to the new energy and high-end electronic fiberglass sectors, the profitability of traditional fiberglass still lags significantly. Industry capital, capacity, and R&D resources continue to concentrate on high-value-added sectors, and the traditional fiberglass sector as a whole can only achieve slow quality improvement through capacity reduction.
Overall Summary
In 2026, the fiberglass industry will no longer experience a general cyclical rise and fall, but rather a structurally differentiated market driven by demand. New energy fiberglass will contribute the main revenue growth, AI electronic fiberglass will open up profit growth potential, and traditional fiberglass will provide a safety net for the industry. For companies in the industry, developing high-end specialty fiberglass products and integrating with the new energy and computing power industry chains are the core directions for improving operational quality at this stage. Traditional general-purpose fiberglass manufacturers need to accelerate the elimination of outdated capacity and optimize product formulas to stabilize their operating efficiency in the existing market. The tiered market structure has also propelled the domestic fiberglass industry to completely move away from extensive scale expansion and fully enter a new stage of high-quality and differentiated development.
