Sources: China State Council’s “Water Pollution Prevention and Control Action Plan” 2015; Graedel et al “On the materials basis of modern society”. Proceedings of the National Academy of Sciences of the United States of America. 2015; China Water Risk and CLSA “Toxic Phones: Chine Controls the Core” 2017; USGs Mineral Factsheets 2017; China Environment Statistical Yearbook 2017; 13^th Five-Year Plan on National Mining Resources 2016; European Commission Revised list of CRMs 2014