Science Advances

Supplementary Materials

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.

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