It allows depolymerizing selectively the PET fibers back to the original building blocks in smooth conditions and with a very reduced use of reagents and solvents without damaging the other fibers. In Europe, we are the pioneers in adopting low carbon and economically viable eco-depolymerization chemical technology in PET recycling. The monomers thus obtained can give back virgin PET of food grade or any other premium quality in an infinite closed loop.