Semi-Dull FDY Price Divergence Narrows: Capacity Game Behind East China Mills' Quotes

On August 6, three East China mills quoted semi-dull polyester FDY 150D/96F premium grade between 8410 and 8500 CNY per ton, with a narrow 90 CNY spread. This figure may seem unremarkable, but in the traditional off-season of Q3, it signals that price flexibility in polyester filament is shrinking, and the upstream-downstream chain is entering a delicate stalemate.

Price Convergence: Consensus or Market Choice

Rongsheng Petrochemical quoted 8500 CNY/ton, Zhejiang Juxing also 8500, and Zhejiang Jiabao 8410. All three used the same specification and grade, yet offered nearly overlapping prices. Superficially, this is market competition; but deeper, it reflects that during weak demand, large mills choose to stabilize prices to maintain cash flow, while smaller mills cannot cut deeply due to rigid costs. This 'price alliance' is not deliberate but a natural result of converging cost curves.

Notably, Rongsheng and Juxing priced equally, while Jiabao was 90 CNY lower. This gap roughly covers the short freight from Shaoxing to Hangzhou, meaning that for downstream buyers, the actual landed cost is nearly identical. This explains the convergence—in a transparent market, any quote above peers quickly loses orders, while below-peer quotes signal quality compromise.

Industrial Impact: Cost Transmission and Profit Redistribution

FDY 150D/96F is a staple for weavers, used in faux silk and peach-skin fabrics. Current quotes are about 5% below H1 peaks, but PX and PTA fell more, implying improved processing margins for polyester mills. However, this improvement has not passed downstream—grey fabric prices have limited declines, squeezing weavers' margins.

For traders, the narrowing spread eliminates arbitrage, forcing a shift to futures-linked or processing-fee-locked models. For brands, stable raw material costs aid autumn/winter order costing, but any crude oil fluctuation could disrupt this stability.

Practical Advice

For Buyers - Current quotes are at a cyclical low; if Q3 orders are confirmed, lock prices in batches to avoid spikes. - Consider Jiabao's lower-priced supply, but verify quality with small trial orders first. - Use the narrow spread to sign long-term contracts with suppliers to lock processing fees and hedge volatility.

For Exporters - When quoting export orders, base prices on current FDY levels and add a 3-5% flexibility clause for currency and raw material swings. - Monitor Southeast Asian price gaps; if domestic quotes stabilize, explore re-export opportunities. - Establish information sharing with upstream polyester mills to receive daily quotes and adjust order-taking strategies promptly.