China's aluminum extrusion output has continued to trend lower, with the construction segment acting as a significant drag. According to Mysteel's sampled manufacturers, industry output sustained a decline from July to September 2026. Within this, construction aluminum extrusion output fell by a cumulative 21.2% from early July to September, reflecting persistent weakness in traditional building demand. In contrast, industrial extrusion output declined by just 3.7% over the same period, demonstrating relative resilience and providing a floor for total production.
Total aluminum extrusion output dropped 11.8% from early July to September, while capacity utilization rates slid from 41.83% to 36.90%. The industry is operating at a low ebb overall, with more than 60% of capacity sitting idle or running at low loads.
On the supply side, the "produce-to-order" model is highly pronounced, with scheduling cycles shortening. The composite lead time has been compressed from 8.63 days to 7.76 days, that is, the production pace has accelerated but order backlogs have shrunk.
Both raw material and finished goods inventories destocked in tandem: raw material stocks fell 18.7%, outpacing the 15.6% drop in finished goods, indicating that amid unclear demand prospects, producers have been proactively scaling back input purchases to curb operational risk. Order drawdown has remained sluggish, with outstanding orders down 11.1%, underscoring feeble end-user demand recovery.
On the demand side, a stark structural divergence persists, with overseas market outperforming the domestic. In construction extrusions, the slump in real estate new starts and shrinking demand for doors, windows and curtain walls have left markets in China's Guangdong, Hubei and Jiangxi sluggish, with little prospect of near-term improvement.
Photovoltaics and new energy stand out as the bright spot. A concentrated delivery of ground-mounted solar projects in late Q2 spurred a demand recovery, and PV extrusion producers in Anhui and Jiangsu have been at full tilt, emerging as the core growth engine for industrial extrusions. For traditional domestic industrial demand, however, bellwethers such as Shandong Huajian reported a "peak season that never came". The orders from conventional industries have shrunk, and the timing of any domestic demand repair may be further delayed.
On the export front, aluminum extrusion shipments peaked in June, and the first MoM decline in July signaled a slowdown. China's exports in 2026 traced a "V-shaped rebound followed by high-level oscillation". The volumes topped out at 92,000 tonnes in June, then July posted the first MoM drop (-3%) alongside a deceleration in YoY growth (+10%), flashing an inflection-point signal.
Exports have been the critical pillar preventing the industry from collapsing, yet this export dividend is fading at the margin. The policy window in mid-to-late September and October has not fully closed, leaving external demand still supportive for now; however, after December 4, rising export costs will erode the dividend, and shipment volumes face a significant pullback risk. The industry would then confront a "double weakness" of insufficient domestic demand coupled with retreating exports.
The aluminum extrusion sector is currently locked in a "weak supply, weak demand, diverging structure" cycle. In the near term, the key variables are whether domestic construction and industrial orders materialize in September-October, particularly how effectively real estate policies transmit to the building segment, and whether export orders can hold at elevated levels.
Over the medium-to-long term, industry consolidation will accelerate. The players with high-end product portfolios and established export channels will be the beneficiaries, while traditional construction extruders will see their survival space severely squeezed and may even be forced out. Caution is warranted against domestic demand recovery falling short of expectations, which would allow excess pressure to persistently weigh on profits across the entire industrial chain.
Written by Regina WANG
wangjiaqie@mysteel.com
