The Presidential Executive Order on a “Federal Strategy to Ensure Secure and Reliable Supplies of Critical Minerals,” issued on December 20, 2017, was a major step taken to decrease the dependency of the United States on imports of critical materials from foreign countries. During the 1950s, the U.S. depended on foreign imports for eight important minerals. Today, that number has grown to 20 minerals, plus the all-important 17 rare earth elements, most of which are imported to from China.