Its role Owner
AFYREN NEOXY is a French industrial company operating the first large-scale biorefinery based on AFYREN's proprietary fermentation technology. Located on the Chemesis industrial platform in Carling Saint-Avold, Moselle region of France, the facility converts non-food sugar beet co-products into seven 100% biobased carboxylic acids, including butyric and acetic acids, along with a potassium sulfate fertilizer co-product. The plant employs a fully circular model with water recycling and achieves a significantly reduced carbon footprint compared to traditional petrochemical processes.
With a production capacity of approximately 16,000 tonnes per year of carboxylic acids and around 23,000 tonnes of fertilizer, the biorefinery represents a total investment of about 60 to 80 million euros. It is the flagship project of the EU AFTER-BIOCHEM initiative and the first of its kind at industrial scale. The company was established in 2018 as a joint venture between AFYREN and Bpifrance's SPI fund, with AFYREN acquiring full 100% ownership in 2026 through the purchase of the remaining stake.
AFYREN NEOXY serves primarily the European market, supplying biobased ingredients to sectors such as human and animal nutrition, flavors and fragrances, life sciences, materials, and lubricants. As a dedicated subsidiary now fully consolidated by its parent AFYREN, it plays a key role in the group's strategy to deploy sustainable bio-based chemical solutions and expand industrial capacity. The plant achieved continuous production in 2025 and is in the ramp-up phase, with secured offtake agreements providing substantial future revenue visibility.
Also known as AFYREN-NEOXY and AFYREN NEOXY SAS.
chemXplore tracks 1 project involving Afyren Neoxy.
Renewed partnership extends supply of French-made, bio-based potassium-rich fertilizer for high-value crop formulations, strengthening local potassium availability.
Plant passed 1,000 t of bio-based acids; capacity reached 30–40% after June works; process held up during heat/water stress; aims to double NEOXY H2 2026 revenue vs H1.
NEOXY plant generated ~€1M in early 2026, production in the hundreds of tonnes, capacity at 20%, and a June 2026 shutdown for reliability and optimisation.
The plant completed construction, began production, and delivered initial biobased acid lots. It aims for full capacity by 2023, targeting 16,000 tons annually and €35M in sales.
The financing will fund the first plant's design and development, advancing bio-based acid production technology for markets like cosmetics, nutrition, and fine chemicals.
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