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AgriSea’s NanoSea Nanocellulose Turns Paeroa Into a Blue-Bioeconomy Testbed

AgriSea’s NanoSea Nanocellulose Turns Paeroa Into a Blue-Bioeconomy

The global nanocellulose market is swelling fast, tipped to hit between US $1.5 billion and US $3.4 billion by 2032, depending on who’s counting. Now, New Zealand’s AgriSea wants a slice of that action. Its new NanoSea plant in Paeroa has just completed first trials, marking what’s believed to be the world’s first commercial-scale seaweed nanocellulose biorefinery.


It’s a big leap from kelp fertiliser to high-tech material science. The NanoSea facility extracts nanocellulose, alginates, and bioactives from the “waste-of-the-waste” of AgriSea’s long-running seaweed biostimulant business, now turning by-streams into multi-million-dollar feedstock for food, wellness, and biomaterials. Backed by regional MBIE Kanoa funding and the Bioeconomy Science Institute, it’s a clean-tech evolution putting Paeroa on the global biomaterials map.


At scale, the plant’s capacity sits around 1.6 tonnes of hydrogel per week, enough to anchor pilot contracts across food, personal care, and advanced composites. For New Zealand, that means something simple but powerful as AgriSae just upped seaweed’s value chain proposition.



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