Price trend

Last week (September 15-21, 2025), demand remained weak, and there was no significant improvement in terminal market demand. Downstream factories mostly maintained just-in-time purchases, and the trading atmosphere on the market was flat. Sinopec's high-end caprolactam weekly settlement price was lowered to 9,078 RMB/ton. The PA6 chip and high-speed spinning chip market was mainly stalemate, with weak support on the cost side. The polyamide fiber market price was mainly consolidation, and prices continued to be weak and stable.

According to the SunSirs commodity market analysis system, polyamide filament prices remained weak and stable last week (September 15-21, 2025). As of September 21, 2025, polyamide filament DTY (premium grade; 70D/24F) in Jiangsu Province was quoted at 14,320 RMB/ton; polyamide POY (premium grade; 86D/24F) was quoted at 12,050 RMB/ton; and polyamide FDY (premium grade: 40D/12F) was quoted at 14,900 RMB/ton, all unchanged from the previous period.

Analysis review

Costs: Last week (September 15-21, 2025), caprolactam spot market prices weakened and fell. Sinopec's weekly caprolactam settlement price was 9,078 RMB/ton (six-month acceptance, interest-free). The polyamide PA6 chips market was primarily consolidating, with stable prices and weak cost support. As of September 21, 2025, the SunSirs caprolactam benchmark price was 88,795 RMB/ton, reflecting a weak consolidation trend and a weekly decline of 0.12%. The polyamide PA6 chips high-speed spinning chips market was also weak, with prices remaining stable with minor fluctuations, primarily supported by weak cost support.

Supply and demand: The operating rates of some polyamide filament manufacturers decreased during the week, and the overall supply in the market was sufficient, but the industry's inventory level continued to increase, and the supply side performed poorly; the terminal market demand was weak, and some downstream manufacturers reduced production or switched production, which reduced the demand for polyamide filament. It was difficult to find favorable support on the demand side, and most people maintained a cautious wait-and-see attitude.

Market outlook

Cost side: As for caprolactam, benzene is expected to be weaker, and chip manufacturers were not very enthusiastic about purchasing caprolactam. It is expected that the caprolactam market will be mainly weak and consolidated at low levels in the short term; as for 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 was weak. It is expected that the market price of polyamide PA6 chips will fall weakly.

Supply and Demand: September is a month of traditional market demand and a positive trading atmosphere, leading to an expected increase in polyamide filament market demand next month. However, due to the inventory pressures, some polyamide filament manufacturers may reduce their production capacity. Furthermore, with the continued release of new production capacity, overall supply pressure remains high.

On the whole, the spot market of upstream raw material caprolactam and polyamide PA6 chips 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. With no positive news, analysts of SunSirs predict that the polyamide filament market will continue to be weak and stable in the short term, with prices mainly consolidating at a weak level.

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