Researchers at the Fraunhofer Institute have succeeded in producing plastic by converting CO₂ into methanol and formic acid. These are then converted into building blocks for polymers by microorganisms:
https://innovationorigins.com/de/co2-als-rohstoff-fuer-kunststoffe-und-co/
https://innovationorigins.com/de/klimaziele-erreichen-co2-in-ameisensaeure-umwandeln/