China's carbon fiber industry is undergoing a qualitative shift from 'having it or not' to 'good or not'. On June 28, 2026, CNBM commissioned three world-largest carbon fiber production lines in Lianyungang, covering high-strength, high-modulus, and large-tow technology routes. The total design capacity reaches 31,000 tons, with an investment of 6 billion yuan on 1,500 mu of land. This signals China's official entry into full-spectrum, large-scale manufacturing of this 'king of materials'.
For downstream buyers, the signal is more concrete than a headline: more options, broader choices, and a cost structure being reshaped.
Industry Impact: From Bottleneck to Bedrock
The specifications of the three lines deserve close attention. The first is a 1,000-ton-per-year SYT70 (T1100 grade) high-strength line, the world's largest single line at this grade, targeting aerospace demands for lightweight and high load-bearing. The second is a 5,000-ton-per-year SYT45S-48K large-tow line, serving cost-sensitive industrial markets like wind turbine blades and new energy vehicles. The third is a 600-ton-per-year M40 grade and above high-modulus line, for deep-sea/space exploration, sports equipment, and 3C electronics. Together, they form a full-spectrum matrix of high-strength, high-modulus, and large-tow products.
What does this mean? In the past, Chinese carbon fiber firms focused on niche breakthroughs—for example, Zhongfu Shenying in dry-jet wet spinning, and Guangwei Composites in military applications. But single capacity couldn't systematically supply the entire downstream market. Lianyungang's 'three lines in parallel' breaks this pattern: one base, one process system, producing three performance grades simultaneously. For downstream customers, this means greatly improved supply stability and flexible allocation.
From a cost perspective, large-tow carbon fiber scaling is key to cost reduction. The 5,000-ton SYT45S-48K line significantly lowers the unit cost of industrial-grade carbon fiber. Wind blade manufacturers and new energy vehicle body suppliers will benefit directly. In wind power, carbon fiber use in blade spars is rising but was limited by price and supply stability. Now with domestic large-tow capacity at the 10,000-ton level, wind companies can more confidently design carbon fiber blades.
Technology Route: From Single Breakthrough to System Leadership
A notable detail: the Lianyungang base broke ground in June 2023 and commissioned the first three lines in just three years, with trial runs achieving 'production as designed' within one month. This speed is rare in advanced materials. It reflects China's maturing engineering capability—from lab formula to pilot scale to mass production, the scale-up challenges are being systematically solved.
An official from SASAC's Science and Technology Innovation Bureau mentioned that central SOEs are 'systematically breaking through carbon fiber bottlenecks'. This underscores industry chain synergy: upstream precursor, midstream carbonization, downstream composite molding—each has technical barriers. In recent years, Chinese firms tackled precursor purity, carbonization temperature uniformity, and surface treatment one by one, leading to today's full-spectrum output.
For foreign trade firms, this is also a signal. The global carbon fiber market has long been dominated by Toray, Hexcel, etc., with Chinese products mainly competing in low-end price segments. Now with high-end grades like T1100 and M40 scaling up, China's export competitiveness in aerospace and high-end sports equipment will significantly increase. International certification and market access barriers remain, but the capacity foundation is laid.