Interior Secretary Ryan Zinke is listing 35 minerals used in aircraft, cellphones, and other important technologies as “vital” to national security in a move to wean the U.S. off foreign suppliers.

The list includes such valuable metals as aluminum and titanium, as well as uranium, helium, lithium, platinum, potash, and strontium. The materials are used in aircraft and other aerospace technologies. Lithium is used in batteries to power a wide range of products from cellphones to electric cars.