The polyolefin producer is joining the Belgian recycling start-up with a minority stake of ten percent.
UBA is having research carried out into economic instruments for less packaging and more plastics recycling.
Starting July 12, a campaign shall spend a week educating people about the benefits of recycling plastic packaging.
Since June, all disposable PET deposit bottles of Lidl's and Kaufland's own brands have been made of 100 percent recycled PET.
The plastics producer and the dairy group are cooperating in the production of PE-HD bottles based on chemically recycled PE.
Lego says the prototype is the first brick made from recycled plastic that meets strict quality and safety requirements.