Methodology

The Plastic Waste Makers Index Basis of Preparation provides detail regarding: the steering committee for the study, analytical components, the methods used to define and analyse single-use plastic material flows from polymer producers to waste, the methods used to estimate greenhouse gas emissions and our circularity assessment, and more.

An Independent Limited Assurance report from KPMG Australia which concluded that according to the evidence obtained from the performances performed, KPMG was not aware of material misstatements in the top 100 single-use plastic waste footprint, top 100 greenhouse gas emissions footprint, and top 50 circularity scores as presented in the ‘Results in Detail Section’ of the Plastic Waste Makers Index 2023.