The US Hexamethylene Diamine market suffered from surplus supply conditions and high inventory burden across the whole domestic market, and prices dropped by 6.5% in September 2025 comparing with that in August. The market is expected to have consolidated this month with a slight 1% gain, while in November and December, the market is expected to move sideways as balanced production and careful downstream purchasing are projected to be maintained until the end of the year.
Hexamethylene diamine prices declined drastically by 6.5% in September with a supply-demand imbalance. Domestic producers continued to run regular shifts, while the downstream buyers apparently tended to be cautious and more conservative in their purchases. Production facilities were running full-steam all month to supply the needs of nylon 6,6 feedstock, so Hexamethylene Diamine was readily available in all sectors.
Port activities returned to normal after being disrupted earlier, allowing Asian vendors to ship more smoothly, and these extra inbound shipments supplemented local supplies and aided in building up Hexamethylene Diamine stocks.
Hexamethylene Diamine consumption in the production of nylon 6,6 is dominated by automotive and textile companies; however, despite the overall positive environment, these industries continued to be cautious buyers in September. The automotive manufacturers and component suppliers posted a good month with robust sales numbers and two solid months of production. Battery electric vehicle sales spiked sharply ahead of the September 30 tax credit cutoff date, but manufacturers had enough supply to meet demand without aggressively restocking Hexamethylene Diamine.
Textiles showed a mixed signal. US retail sales of clothing rose somewhat from previous months, but shipments from leading foreign suppliers fell at the same time. Textile mills were still processing through an inventory correction and adjusting to sourcing changes, and this kept demand for industrial polyamides including Hexamethylene Diamine used in technical textile applications soft and limited their needs.
Domestic production facilities for Hexamethylene Diamine are expected to have remained stable this month. There were no interruptions in supply from large producers who maintained production and kept up with contract commitments and prices were probably driven slightly upwards by around 1% due to seasonal demand.
November is expected to be calm with Hexamethylene Diamine price only up around 0.5% maximum. Automotive and textile application will remain stable but buyers in both sectors will keep on preferring short term orders to heavy stock building. Business will be cautious in contract renewals and not commit to large volumes, so buying to support Hexamethylene Diamine price growth will be limited and not aggressive.
December is likely to be flat as year-end dynamics equalize supply and demand. Producers will continue to hold Hexamethylene Diamine production stable to fulfil contract needs, and some buyers may do small inventory drawdowns. Automotive and textile purchasers will maintain their preference for contract rather than spot purchases until the end of the year, thereby Hexamethylene Diamine market situation will stay firm going into 2026.
