Acerinox SA (Acerinox) is a manufacturer and distributor of stainless steel. It produces flat and long stainless-steel products, with factories such as Acerinox Europa, North American Stainless, Columbus Stainless, Roldan, and Inoxfil. The company has a production volume of 1,783,496 metric tons (MT) of stainless steel and 82,835 MT of high-performance alloys. Acerinox operates 28 service centers, 27 warehouses, and 70 sales offices, with a sales network spanning 52 countries. Its products are used in various applications, including construction, electrical appliances, oil and gas, chemical industry, energy, industrial equipment, transport, food sector, and aerospace. The company has a sales network operating in 84 countries. Its stainless-steel factories are located in Spain, the US, and South Africa, while high-performance alloy factories are in Germany and the US. The company serves 13,345 customers globally.

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Acerinox continued to develop new and enhanced value-added products throughout 2025, focusing on sustainable production pathways. The company's R&D initiatives are structured around expert clusters, fostering agility and cross-fertilization of ideas. These initiatives align strategic and R&D efforts with evolving market needs, including emerging technologies such as carbon and hydrogen. The integration with Haynes International is progressing, with combined R&D teams working to unlock the potential of high value-added products. The company has launched the ‘Joint Capabilities for the Future’ initiative to identify new market opportunities for advanced materials by integrating its joint facilities into a cohesive production network. The company spent EUR26 million for various R&D projects in FY2025.