After the launch of the public tender (dated 20/04/2018) for the subcontracting of the process of the synthesis and production of PET pellets by means of the polymerization of the monomer BHET, the University of the Basque Country obtains the most positive evaluation in this respect. Once numerous proposals had been received, the candidacy of UPV-EHU was objectively evaluated, consolidating the agreement after signing the collaboration contract for the production and characterisation of the PET obtained.