Advanced Materials Price Trend Daily Report (2026-10-12): AlN Keeps Rising, PI Film Cost Pressure Builds

Advanced Materials Price Trend Daily Report (2026-10-12)

Price Overview

Key Price Movements

• Aluminum Nitride Powder: +2% (AI thermal-management shortage persists) — Communication-grade AlN powder holds at ¥280,000–320,000/ton. Rare-earth export controls have cut overseas top producers’ capacity by 25–30%, with lead times beyond 24 weeks and high-end substrate orders backlogged into late 2027. China’s powder gap is estimated to widen to 3,100 tons in 2025. Demand from AI compute hardware (1.6T optical modules, HBM packaging, AI server thermal management) keeps growing structurally, accelerating domestic substitution.

• PI Film: Flat, but upstream cost pressure is building — South-China electrical grade 25μm: uniaxial ¥130–170/kg, biaxial ¥190–220/kg, quotes flat for four straight weeks. However, upstream DMAC has surged since September (major plant maintenance + rising acetic acid), while PMDA/pyromellitic dianhydride prices jumped 22–26% MoM. Film producers’ margins are nearing inversion. If feedstock momentum continues, electrical-grade PI film prices could follow upward in Q4.

• PTFE Resin: Flat (commodity weak, electronic strong) — Longzhong’s Oct 9 report: PTFE medium-grain mainstream at ¥41,000–43,000/ton; Zhonghao Chenguang suspended medium-grain ex-works at ¥48,000/ton — the market range is broadly sideways. Operating rates at 60–70%; HFP supply slightly tight but downstream demand soft. Electronic-grade PTFE, driven by AI compute infrastructure (high-frequency high-speed CCL), has held above ¥150,000/ton, with the spread vs commodity grades still widening.

• PEEK Resin: +0.5% (robot demand underpins pricing) — Domestic pure resin firm at ¥320–380/kg, with mainstream trader quotes clustered around ¥350/kg. The first year of humanoid-robot mass production (5–7 kg per unit) and EV 800V platform demand support prices, while domestic capacity releases cap the upside.

• Carbon Fiber: Flat (value-recovery cycle continues) — T700 12K holds at ¥135/kg (tax-incl., ex-works) for a third straight week; T300 12K ~¥80/kg. Acrylonitrile up 8–10% YoY provides firm cost support. The industry has exited its price war and entered a “value-return plus divergent pricing” cycle; high-end small-tow (T800+, ¥180–240/kg) remains in short supply.

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Impact Analysis

• On Procurement Costs: AlN substrates still face the greatest cost pressure — overseas delivery delays may lift spot premiums by 10–15%. PI film feedstocks (DMAC, PMDA) are surging, so the locking window is closing; a Q4 contract-price increase is increasingly likely. PTFE and carbon fiber cost structures remain stable with no systematic upward pressure.

• On Supply Chain: AlN overseas lead times exceed 24 weeks — supply risk is concentrated in high-end electronic grades. Concentrated feedstock maintenance for PI warrants vigilance over Q4 supply fluctuations. PTFE/PI film overall supply is loose; industrial-grade carbon fiber is ample while high-end small-tow stays tight. Falling international oil prices (US–Iran talks progressing) ease energy-cost expectations.

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Action Recommendations

• Lock in immediately: Aluminum nitride powder (structural shortage in high-end electronic grades; secure volume and pricing during the domestic-substitution window); PI film (DMAC/PMDA cost pass-through is imminent — sign Q4 quotas early).
• Lock in: Carbon fiber T700 and above (cost support + value recovery; prices likely to hold firm or rise short term).
• Watch: PTFE commodity grades (buyer’s market; restock in phases on dips); electronic-grade PTFE remains firm — procure as needed.
• Procure as needed: Electrical-grade PI film and domestic PEEK resin (stable pricing; match purchases to production schedule).

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Data sources: Longzhong Information/MySteel (2026-10-09), Shengyi Society PTFE Channel (2026-10-09), ChemicalBook (2026-10-04), China Report Hall alumina monitor (2026-10-08), Eastmoney (2026-10-05).