While the low-altitude economy is still debating airworthiness certification and airspace management, the upstream material sector has already cast a decisive vote with capacity expansion. On August 12, Jilin Chemical Fiber Group announced the successful startup of its high-efficiency large-tow carbonization line dedicated to low-altitude applications, marking the fourth 4,000-ton large-tow line launched this year. With this, the company's annual carbon fiber capacity is approaching the 100,000-ton threshold, a significant portion of which will flow into civil low-altitude equipment such as agricultural spraying and logistics drones.
Capacity Race and Industrial Logic
The new line took only two months from construction to operation, a testament to the maturity of the production process. More importantly, it can mass-produce 35K large-tow carbon fiber, signaling a shift from "capability" to "cost-effectiveness." The cost-performance advantage of large-tow fiber aligns perfectly with the low-altitude economy's dual demands for lightweight and low cost—every kilogram saved on an aircraft yields disproportionate gains in endurance and payload.
This expansion is not an isolated event. Industry data show that Jilin Chemical Fiber has launched four similar lines this year, all running at full capacity with orders exceeding supply. Behind this supply-demand balance is the low-altitude economy's inclusion in national strategic emerging industries, turning expectations into firm orders. For buyers, this means the once-scarce high-end carbon fiber market is now segmenting into a more accessible large-tow niche.
Green Power Reshapes Cost and Carbon Footprint
Each new line is paired with a 600 MW green power direct-connection demonstration project, ensuring renewable electricity supply. This is not just corporate social responsibility but a structural change in cost. Carbon fiber production is energy-intensive, with electricity accounting for over 20% of production costs. Green power reduces long-term operational expenses and offers a lower embedded carbon footprint, crucial for exports to markets like the EU with carbon border adjustments. For trading firms, this is akin to an early ticket into green supply chains.
From an industrial cluster perspective, Jilin's deployment strengthens the Northeast's position in carbon fiber. With standardized project construction and self-developed line design, the company is replicating the "green power + green material" model in subsequent lines. Two more lines are slated for the second half of the year, pushing capacity beyond 100,000 tons. This scale will not only support the domestic low-altitude economy but may also reshape global large-tow supply dynamics.
Transmission Effects Across Applications
The ripple effects of carbon fiber capacity are spreading beyond low-altitude to aerospace, marine, and offshore wind sectors. For downstream manufacturers, supply stability and price volatility are top concerns. A higher share of large-tow products helps smooth the price curve—since large-tow is more efficient and cheaper to produce, its scale-up will pull down industry average prices. This could accelerate substitution of glass fiber with carbon fiber in cost-sensitive industrial applications like wind blades and hydrogen tanks over the next two years.
For traders and exporters, the focus should extend beyond capacity numbers to product certification and specification alignment. Although 35K large-tow is mainstream, different equipment requires specific tensile strength and modulus. Buyers are advised to secure quality consistency and batch traceability clauses in annual framework agreements. Exporters should seek third-party certification of green power carbon footprint to command premiums in Western markets.