The price gap for the same specification of polyester POY between two major producers in Zhejiang is only 150 yuan per tonne — a figure smaller than many would expect. According to industry public data, 150D/48F semi-dull first-grade melt-spun POY is quoted at 9,300 yuan per tonne from the Hangzhou direction and 9,150 yuan per tonne from Shaoxing. Identical specifications, both delivered within Zhejiang, yet the spread is compressed to under 2 percent. For a chemical fiber market accustomed to sharp swings, this kind of tight pricing is itself a signal.
What the Spread Structure Reveals
Look at the specification first. 150D/48F, semi-dull, first-grade, melt-spun — this is one of the most common raw material specifications in the texturing segment. Downstream it corresponds to standard DTY, and further down to plain and twill fabrics widely used in apparel and home textiles. In other words, this is not a niche differentiated product but the highest-volume standard item. When the spread on a standard item is squeezed to 150 yuan per tonne, it means regional supply is relatively ample and no single producer can capture excess returns by raising prices.
Hangzhou and Shaoxing both sit in Zhejiang's core chemical fiber belt, with short logistics radii and highly overlapping customer bases. When quotes from the two origins are this close, the buyer's bargaining space is effectively locked from both sides: push Shaoxing too hard and Hangzhou may not take the order; switch to Hangzhou and Shaoxing's quote becomes the reference. In this setup, the real competitive variables are no longer who is cheaper, but settlement terms, credit periods and pickup flexibility.
For upstream producers, the narrowing spread also reflects cost-side rigidity. Melt-spun POY is made from PTA and ethylene glycol, which account for an extremely high share of costs. When raw material price movements are quickly passed through to quotes, the processing spread a producer can compress is inherently limited. A 150 yuan per tonne gap may already be close to the practical operating range after deducting freight and capital costs.
Processing Margin Compression Transmits Downstream
The real pressure is not on POY producers but on texturing mills downstream. The profit model of a texturing mill is simple: POY purchase price plus processing fee, minus DTY selling price. When POY quotes cluster tightly between 9,150 and 9,300 yuan per tonne, texturing mills have almost no room to push down raw material costs and can only hope for higher DTY selling prices.
The problem is that DTY prices are equally constrained by end demand. If apparel and home textile orders do not visibly pick up, DTY will struggle to follow upward, and the texturing mill's processing margin will be squeezed from both ends. This transmission has a lag, typically one to two weeks before it shows up in mill operating rates and purchasing rhythm. Buyers who only watch POY quotes can easily miss the possibility of production cuts after downstream profits are eroded.
From a regional industrial belt perspective, texturing capacity is dense along the Shaoxing-Hangzhou line, generating large immediate demand for POY. Once the processing margin falls below breakeven, some small and medium texturing mills will be the first to reduce operating rates, which in turn cuts POY purchasing. If this negative feedback loop starts, the price support for POY will loosen. Whether the current 150 yuan per tonne narrow spread can hold therefore depends on whether the texturing segment's profit can be defended.
Practical Impact on Procurement and Exporters
For buyers, the marginal benefit of price comparison declines in a narrow-spread environment. Rather than repeatedly soliciting quotes between two suppliers, it is more worthwhile to focus on locking in futures pricing, agreeing on pickup windows and negotiating credit terms. When spot quotes are highly convergent, supply chain stability is worth more than a small difference in unit price.
For exporters, the key concern is the validity period of quotes. Chemical fiber raw material prices move fast, and POY quotes are often valid for the day only. If an export order is signed at a fixed price while the raw material side rises during the delivery period, the factory's willingness to perform will be affected. A more prudent approach is to include a raw material price linkage clause in the contract, or shorten quote validity and lock prices in batches.
It is worth noting that grade differences between semi-dull first-grade and ordinary products can also widen the spread when supply tightens. The current concentration of first-grade quotes suggests the market is dominated by mainstream quality, while differentiated and special specifications may see independent price movements due to thin supply. Buyers with special specification needs should not simply apply the 150D pricing logic.