- In March 2025, DOMO Chemicals announced it would cease production of hexamethylene diamine (HMD) and base polyamide 66 (PA66) at its Belle-Etoile facility in Saint-Fons, France, to focus on downstream processes and engineered materials. The closure is in response to tough market conditions in the polyamide sector, including rising costs and lower demand. Production of PA66 will continue at the company’s Blanes, Spain, and Valence, France, sites. The shutdown is expected to be completed by summer 2025, although DOMO Chemicals has not yet issued an official statement.
- In February 2025, Fujian Haichen Chemical Co., Ltd. marked the inauguration of the gasification purification section of its 400,000-ton annual adiponitrile production and raw material support project at the Gulei Petrochemical Base in Zhangzhou. This event signifies the transition of the project into its construction phase, following an investment of USD 2.02 billion. The project will utilize coal as its primary raw material and establish a full production chain that includes ethylene cracking, butadiene, adiponitrile, hexamethylenediamine, and nylon 66, enhancing the resource distribution of Fujian Energy and Chemical Group.
- In March 2022, Asahi Kasei Corporation formed a partnership with Genomatica Inc. to commercialize renewable nylon 6.6 derived from bio-based hexamethylenediamine building blocks. This collaboration is intended to further strengthen Asahi Kasei's position in the market.
- In January 2022, BASF SE announced plans to build a new hexamethylenediamine plant in Chlaampe, France. This facility will increase BASF's annual production capacity of hexamethylenediamine to 260,000 metric tons, with production expected to begin in 2024.
- In October 2024, Ascend Performance Materials celebrated the opening of its hexamethylene diamine (HMD) plant in Lianyungang, China, with a ribbon-cutting ceremony attended by government officials, customers, and suppliers. This marks Ascend's first chemical production site and its largest investment outside the U.S. The plant’s capacity increases the company’s total HMD output by about 50%, complementing its two existing plants in Decatur, Alabama, and Pensacola, Florida. HMD is a key ingredient in polyamide 66 production, and the plant will also manufacture Ascend’s FlexaTram specialty amines, used in industries like coatings, pharmaceuticals, and oil and gas.
