In September 2025, the raw materials for polyamide filament insufficiently supported, the supply and demand performance was bearish, the shipments from polyamide factories continued to show no improvement, the inventory level was high, and both the supply and demand sides lacked support for the price of polyamide filament. polyamide filament continued to operate weakly, and the price was at the lowest point of the year.

On the one hand, the price of raw materials continued to fall, lacking support for the cost side of polyamide filament; on the other hand, the contradiction between supply and demand was prominent. Although some orders were placed during the month, the quantity was relatively small. Therefore, all downstream links were mainly focused on digesting inventory when inventory was high. They were not motivated enough to purchase their respective upstream raw materials, and the demand was not transmitted smoothly from bottom to top, resulting in continued sluggish shipments from polyamide filament manufacturers and increasing inventory pressure. In general, the peak season was not prosperous, and the polyamide filament market was weak. However, with profits continuing to be poor, polyamide factories had a certain mentality of reducing losses. Therefore, the mainstream transaction price in the polyamide filament market was mainly stable at a low level.

Polyamide yarn prices fell weakly 

According to the SunSirs commodity market analysis system, polyamide filament prices weakened in September 2025, reaching their lowest point for the year. As of September 29, 2025, polyamide filament DTY (premium grade; 70D/24F) in Jiangsu Province was quoted at 13,880 RMB/ton, down 440 RMB/ton from the same period in August, a monthly decrease of 3.07%. polyamide POY (premium grade; 86D/24F) was quoted at 11,575 RMB/ton, down 475 RMB/ton from the same period in August, a monthly decrease of 3.94%. polyamide FDY (premium grade: 40D/12F) was quoted at 14,500 RMB/ton, down 400 RMB/ton from the same period in August, a monthly decrease of 2.68%.

The raw material sector was operating in a bearish trend

In September, polyamide PA6 cost-side prices fluctuated downward, and supply and demand remained imbalanced. Consequently, PA6 high-speed spinning market prices continued to decline, exerting a bearish influence on polyamide filament prices. As of September 29, 2025, the SunSirs caprolactam benchmark price was 8,693 RMB/ton, a weak decline of 2.9% month-over-month. The market price of polyamide PA6 high-speed spinning chips also declined, falling 1.29% month-over-month. This weakness was primarily supported by the cost side.

The contradiction between supply and demand was prominent, which was bearish for prices

Polyamide factory shipments continued to show no improvement throughout the month, with inventory levels remaining high. Both supply and demand sides lacked support for polyamide filament prices. Specifically, downstream orders were low and inventories were high, resulting in continued demand for polyamide filament, with speculative demand remaining scarce. polyamide manufacturers' inventory levels continued to rise, and while some manufacturers implemented production cuts, these measures had limited impact on easing inventory pressures, leading many in the industry to adopt a cautious wait-and-see approach.

Market outlook

Cost side: In terms of caprolactam, benzene is expected to be weaker, and chip manufacturers are not very enthusiastic about purchasing caprolactam. It is expected that the caprolactam market will be mainly weaker and low in the short term; in terms of polyamide PA6 chips, the cost side had limited support, the supply level of PA6 chips market may continue to increase, and the downstream market demand is weak. It is expected that the market price of polyamide PA6 chips will be mainly weakly consolidated.

Supply and Demand: While September is traditionally peak season, the distinction between peak and off-season has become less pronounced in recent years, and trading sentiment remained predominantly weak. Therefore, sluggish demand for polyamide filament is expected to persist next month. However, under inventory pressures, some polyamide filament manufacturers may reduce their production capacity. Furthermore, with the industry continuing to release new production capacity, overall supply pressure remains relatively high.

On the whole, the spot market of upstream raw material caprolactam and polyamide PA6 chip market will continue to operate in a weak position, with a lack of support on the cost side and relatively high supply pressure. It is difficult for the downstream market demand to improve significantly, and it will mainly follow up on demand. The contradiction between supply and demand is prominent, and there is no good news. The trend of low and stable will continue. Analysts of SunSirs predict that the polyamide filament market will continue to be stable at a low level in the short term, with prices mainly consolidating weakly.

If you have any inquiries or purchasing needs, please feel free to contact SunSirs with support@sunsirs.com.