Altri to acquire majority stake in AeoniQ for sustainable textile yarn production

Altri SGPS S.A. signed an agreement to acquire a majority stake in AeoniQ, a cleantech spin-off of HeiQ Materials AG, to build the world's first industrial plant for climate-positive cellulosic filament yarn at Altri's Caima pulp mill in Portugal, with construction expected to begin in 2026.

“The Altri investment, including a capital increase, will allow building out commercial-scale AeoniQ production capacity.”heiq.com

• 1 source
• heiq.comAltri to acquire a majority stake in AeoniQ™ to scale world’s first industrial production of climate positive textile yarn | HeiQJul 1, 2025

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