CETEC Biotechnology (CETBIO) is a Spanish biotechnology company specialized in the development of sustainable bioplastics and the promotion of circular solutions.

As a spin-off of CETEC, it combines expertise in microbial fermentation, polymer science, and industrial biotechnology to develop bio-based materials. CETBIO operates pilot-scale facilities for PHBV production and contributes to the transition towards a circular bioeconomy through applied industrial biotechnology.

CETBIO leads PHBV production with programmed biodegradation using renewable carbon sources and Haloferax mediterranei, optimizing fermentation processes and tailoring polymer properties.