Each chapter of the 2019 edition of the U.S. Geological Survey (USGS) Mineral Commodity Summaries (MCS) includes information on events, trends, and issues for each mineral commodity as well as discussions and tabular presentations on domestic industry structure, Government programs, tariffs, 5-year salient statistics, and world
production and resources. The MCS is the earliest comprehensive source of 2018 mineral production data for the world. More than 90 individual minerals and materials are covered by two-page synopses.
For mineral commodities for which there is a Government stockpile, detailed information concerning the stockpile status is included in the two-page synopsis.