Investment gives 10 times boost to Grangemouth biorefinery production
21 Mar 2026
Scottish firm Celtic Renewables has won £16.23 million in public and private funding to scale its production of green chemicals.
The investment will help fund the planning and development of a new £120 million industrial-scale biorefinery at Grangemouth with 10 times the production capacity of the company’s current facility.
It includes £5 million from both Scottish Enterprise and existing private investors. A further £6.23 million in Scottish Government money awarded via Grangemouth Just Transition was announced by Scotland’s Secretary for Climate Action and Energy Gillian Martin on a visit to the firm’s Grangemouth biorefinery.
Celtic Renewables CEO Mark Simmers said, “Our demonstrator facility in Grangemouth is Scotland’s first biorefinery and has been operational since 2023. In that time, we’ve proven that our patented ABE fermentation process is scalable and commercially viable, de-risking future projects.
“Today, demand for our bio-based chemicals far outstrips current production capabilities at our demonstrator plant. With this latest investment, we’re now poised to take the knowledge gained at our demonstrator plant and scale to full industrial-level operations in Grangemouth.”
Founded in 2012 as an Edinburgh Napier University spinout, Celtic Renewables has to date secured more than £90 million in total private and public funding.
