Table 1: Results of quantitative and qualitative evaluation of supply risk and the 2022 list of critical minerals.

Table 1. Results of quantitative and qualitative evaluation of supply risk and the 2022 list of critical minerals. (Source: adapted from https://www.govinfo.gov/content/pkg/FR-2021-11-09/pdf/2021-24488.pdf)⁵

⁵ Ranked in order from highest to lowest risk based on a recency-weighted mean of the commodities’ overall supply risk scores. See the published methodology (https://doi.org/10.3133/ ofr20211045) for further details.

⁶ Most mineral commodities are recovered as byproducts to some degree, but the share of primary production as a byproduct for the mineral commodities that are not identified as byproducts in the table is typically small. Rare earth elements (REEs) are mined both as byproducts of other mineral commodities (for example, iron ore or heavy-mineral sands) and as the main product. Where REEs are mined as the main product, the individual REEs are either byproducts or coproducts of each other. For simplicity, all REEs are labeled in the table as having been produced mostly as byproducts. Byproduct status can and does change, although notable changes over short periods of time are rare.

⁷ Commodities that were not evaluated using the quantitative evaluation are not given a rank and are ordered alphabetically.