A Spanish Startup Just Chose Portugal for a $130 Million Bio-Based Plant. Here's Why It Matters

Jan de Vries · 2026-07-22

Seville's Catalyxx, a bio-based chemicals company turning bioethanol into alternatives to fossil-derived industrial chemicals, has picked Sines, Portugal, for its $130 million commercial-scale production facility. This move signals a shift in how Europe is approaching sustainable manufacturing. ### The Funding Behind the Plant The plant is backed by a mix of private investment and public grants. Catalyxx recently secured $21.7 million from the Circular Bio-based Europe Joint Undertaking, a public-private partnership promoting Europe's circular bio-based industries. This funding will help the Sines project cut emissions and strengthen chemical supply chains across the continent. This latest round follows a $3.3 million financing for its Seville technology center and a pre-approval for $40.2 million from the European Investment Bank for an earlier proposed plant in France. Clearly, Catalyxx has been building momentum through multiple stages of development and demonstration. ### What the CEO Says "Our Catalyxx Ibérica facility represents the next step in Catalyxx's mission to replace fossil-based chemicals with renewable alternatives that are chemically identical, fully compatible with existing industrial applications and significantly lower in carbon intensity," said Joaquín Alarcón, CEO of Catalyxx. Alarcón added, "We are thrilled to be building our first commercial-scale plant in Portugal, and we are particularly grateful to the Portuguese Trade and Investment Agency, CCDR Alentejo, Câmara Municipal de Sines, Port of Sines and Algarve Authority, and all the Portuguese authorities for their support. This project will not only accelerate the defossilization of the chemical industry but also position Portugal as a European leader in sustainable industrial innovation." ### The Bigger Picture Catalyxx's award and facility are part of a broader, though still selective, flow of European financing into bio-based chemicals, industrial biomanufacturing, and renewable substitutes for petrochemical materials in 2026. EU-Startups has tracked about $63 million across eight adjacent deals, including funding for Octarine Bio's fermentation-derived pigments, Seprify's cellulose-based ingredients, D-CRBN's circular carbon molecules, and Foamlab's bacterial-cellulose materials. Including Catalyxx's award, the total hits roughly $85 million. ### The Technology and Its Impact Founded in 2017 by Joaquín Alarcón de la Lastra Romero, a former Abengoa executive with over 20 years in bioenergy, Catalyxx runs its R&D and demo plant in La Rinconada, Seville. That facility focuses on sustainable chemicals and research into sustainable aviation fuels. Catalyxx's technology converts bioethanol into what it calls drop-in, cost-competitive, and carbon-negative chemicals. "Drop-in" chemicals are chemically identical to their fossil-based counterparts, so manufacturers can use them without replacing equipment or reformulating products. This is a huge advantage—it means industrial customers can reduce emissions without major disruption. The company aims to provide another source of butanol, hexanol, and octanol while helping clients cut raw material emissions. These chemicals are used in coatings, adhesives, plastics, solvents, personal care products, and other industrial processes. The new $130 million plant, Catalyxx Ibérica, will produce butanol, hexanol, and octanol from bioethanol. These chemicals are already widely used, and Catalyxx's process offers a lower-carbon alternative to traditional petrochemical routes, without requiring customers to change their infrastructure or compromise performance. ### What This Means for the Industry This is not just another factory announcement. It's a signal that bio-based chemicals are moving from lab-scale to commercial reality. With strong public-private backing and a clear technology edge, Catalyxx is positioning itself as a key player in Europe's shift away from fossil fuels. For U.S. professionals watching European startup trends, this is a deal worth noting—it shows how targeted funding and strategic site selection can accelerate the green transition.