Science Advances

Supplementary Materials

This PDF file includes:

  • Table S1. Companionality of the metals of the periodic table.
  • Table S2. Country-level production concentration.
  • Table S3. 2008 reported or estimated metal sales by platinum group element–producing operation.
  • Table S4. Platinum group element ore grade distributions, as reported in literature or company reports.
  • Table S5. Estimated elemental distribution of platinum group elements based on mix of ore body milled.
  • Table S6. Revenue contribution by metal and cost of sales as a percentage of revenue by operation.
  • Table S7. Companionality estimates for platinum group elements by operation and for overall production.
  • References (39–152)

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