The poly-hexanoate-butyrate (PHBH) copolymer is produced by Kaneka from plant oil using a recombinant strain of Cupriavidus necator at a capacity of currently 1,000 tons, with plans to increase production to 5,000  and later to 100,000 tons a year. PHBH materials decompose not only on soil, but also in seawater (90% within 6 months at 30°C) and have obtained the “OK Biodegradable Marine” certificate from TÜV AUSTRIA Belgium NV. The biopolymer-producing strain is based on joint research by Yoshiharu Doi, former Professor of the Tokyo Institute of Technology and Director at RIKEN, and five Kaneka researchers who will share the award of 3 million ¥ (~25,000 €).

JBA news release, July 29, 2019