ETA Bio is a Bulgaria-based renewable fuels company focused on advanced biofuels. It develops projects to produce cellulosic ethanol from agricultural residues such as wheat straw, using biochemical conversion processes to transform lignocellulosic feedstocks into fuel-grade ethanol.
The company’s output is intended for blending into gasoline as advanced biofuel in line with European sustainability frameworks, contributing to transport decarbonization and providing additional outlets for agricultural by-products. ETA Bio operates at the interface of the chemical and energy sectors, spanning feedstock handling, pretreatment, enzymatic hydrolysis, fermentation, and product purification to supply low‑carbon fuels.