Accsys Technologies plc is a United Kingdom-based sustainable building materials company that develops and commercializes technology for improving the performance and durability of wood. Its core process, wood acetylation, modifies timber at a molecular level to increase resistance to rot, insects, moisture, and dimensional movement without relying on toxic preservatives.
The company’s principal product is Accoya, a high-performance modified wood used in windows, doors, cladding, decking, landscaping, and other exterior applications. Accsys also develops and supplies Tricoya, an acetylated wood element designed for use in panels and other engineered wood products. These materials are positioned as alternatives to tropical hardwoods, plastics, and other less sustainable construction materials.
Accsys serves customers internationally through its own manufacturing and commercial activities, technology licensing arrangements, and distribution networks. The company has historically manufactured Accoya in Arnhem, the Netherlands, and has supported the development of additional production capacity and Tricoya manufacturing in the United Kingdom. Accsys Technologies is headquartered in London and is listed on the London Stock Exchange’s AIM market; its ordinary shares also trade in the United States under the symbol ACSYF.
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