A seemingly routine quote table often conceals the most authentic signals of industrial competition. On September 7, 2026, the domestic polyester DTY market presented a telling detail: for the same specification—150D/48F, melt-spun, AA grade, semi-dull low-elastic—Tongkun Group quoted 9,760 CNY/ton, while Rongsheng Petrochemical listed 10,350 CNY/ton, a gap of 590 CNY/ton. In the chemical fiber industry, a price difference exceeding 5% for identical quality and region is rarely a statistical error; it is a direct manifestation of divergent corporate strategies.
The Threefold Logic Behind Price Divergence
First, consider the cost side. Both companies are integrated polyester leaders, but their supply chain depths differ. Tongkun has a higher self-sufficiency rate in the PX-PTA-polyester chain, and the cost buffer from raw material self-supply gives it greater room to cut prices when the market weakens. Rongsheng, although also owning refining-integration projects, relies more on external raw material procurement for its filament segment, resulting in higher cost rigidity. When upstream PTA prices fluctuated recently, this difference in cost transmission sensitivity was directly reflected in ex-factory quotes.
Second, examine inventory and operating rates. According to public industry data, since late August, the average inventory days of polyester filament factories in the Jiangsu-Zhejiang region have been 15-20 days, at a medium-to-high level for the year. Tongkun has recently accelerated destocking through flexible promotions, with quotes close to the market bottom; Rongsheng, however, tends to maintain price system stability, pairing high quotes with moderate discounts, leaving elasticity between listed and actual transaction prices. This strategic difference between "stable but secretly lowering" and "one-step in place" has led to a rare stratification in public quotes.
More profoundly, this reflects divergent views among leading enterprises on the future market. DTY is a key raw material for apparel fabrics, home textiles, and industrial textiles, and its price trends often lead terminal consumption data. Tongkun's low-price strategy implies caution about the traditional "golden September and silver October" peak season, fearing weaker-than-expected demand and thus locking in orders early; Rongsheng's high-price stance expresses optimism about export resilience and autumn-winter fabric restocking. Neither judgment is right or wrong, but the widening price gap itself is the market repricing risk.
Transmission Effects on Downstream Procurement and Foreign Trade
For weaving enterprises, the current divergence in DTY quotes offers a rare bargaining window. Since there is virtually no quality difference among the same specification from different suppliers, buyers can fully compare prices between Tongkun and Rongsheng, and even use the gap as leverage in negotiations with third-party suppliers. However, it should be noted that low prices often come with stricter payment terms or longer delivery cycles; buyers should comprehensively calculate capital occupation costs rather than simply focusing on the per-ton price.
From a foreign trade perspective, loosening DTY prices helps alleviate cost pressures on export enterprises. In the first half of 2026, China's polyester filament exports increased by about 8% year-on-year, but average export prices were under pressure due to high freight rates and exchange rate fluctuations. If domestic DTY quotes can maintain the current range or even fall slightly, it will help fabric and garment exporters lock in more favorable raw material costs when taking orders. However, caution is needed regarding the risk of trade friction brought by low prices—when the price advantage of Chinese chemical fiber products expands in the international market, the shadow of anti-dumping investigations also deepens.
Practical Recommendations
For Procurement Departments - Establish a dual-supplier price comparison mechanism, focusing on the gap between listed and actual transaction prices of leading enterprises such as Tongkun and Rongsheng, to avoid being misled by a single quote. - When the price gap exceeds 300 CNY/ton, consider batch purchasing, splitting orders between low-priced and stable sources to balance cost and supply security. - Monitor PTA futures trends and polyester operating rates; if the raw material side continues to weaken, DTY quotes still have room to decline, so there is no need to rush large-scale stockpiling.
For Foreign Trade Companies - Utilize the current low DTY price window to sign fixed-price long-term contracts with upstream suppliers for about three months, locking in raw material costs for export orders. - Introduce raw material price linkage clauses in export quotations, allowing corresponding adjustments to FOB prices when DTY spot prices fluctuate by more than 5%, to hedge cost risks. - Strengthen monitoring of anti-dumping dynamics in target markets, avoid triggering trade remedy investigations due to low-price strategies, and adjust export destination structures when necessary.
Price divergence is not an endpoint but the starting point for market repricing. In the process of profit redistribution along the polyester chain, those who can interpret quote signals more accurately will take the initiative in the next cycle. Texworld will continue to track DTY and related upstream/downstream quote dynamics, providing industry decision-makers with more insightful analytical perspectives.