This PDF file includes:

• Supplementary Materials and Methods
• Fig. S1. WSI and constituent components by year.
• Fig. S2. SR, DP, EV, and TE scores for years 2007–2015.
• Fig. S3. Hierarchical cluster analysis based on 2016 DP, EV, and TE scores.
• Fig. S4. Hierarchical cluster analysis based on 2007–2016 average SR scores.
• Table S1. Description of data for world primary and secondary production and prices for each commodity.
• Table S2. Description of data for U.S. apparent consumption calculation by component for each commodity.
• Table S3. Estimated elemental content of various steel alloys.
• Table S4. Description of applications, associated NAICS codes, and U.S. demand fractions for each commodity.
• Table S5. Rare earth oxide distribution (in percent of total) for various world regions.
• Table S6. Rare earth oxide distribution (in percent of total) for various regions in China.

Download PDF