Chemically identical to their petrochemical counterpart, but made from renewable resources. Examples include bio–PE, bio-PET, bio-propylene, bio-PP, and biobased nylons. Easy to implement using existing infrastructure. However, as they are chemically identical to their fossil-based counterparts, it also means they share their properties. So, if the counterpart is non-biodegradable, the bio-based is non biodegradable as well.