1) ALLEGHENY TECHNOLOGIES INC.

2) AMERICAN DEFENSE INTERNATIONAL ON BEHALF OF MP MATERIALS

3) GLOBAL ADVANCED METALS

4) GLOBAL TUNGSTEN & POWDERS

5) GLOBALFOUNDRIES U.S. INC.

6) HOWMET AEROSPACE INC FORMALLY KNOWN AS ARCONIC INC

7) MAGNETIC HOLDINGS, LLC

8) MATERION BRUSH INC.

9) METALS AFFORDABILITY INITIATIVE ASSOCIATION

10) NATHAN TROTTER & CO

11) NOBELCLAD US MANUFACTURING

12) NOVEON MAGNETICS, INC

13) RESIN SOLUTIONS, LLC

14) SPECIALTY STEEL INDUSTRY OF NORTH AMERICA

15) TIMET - TITANIUM METALS CORPORATION

16) TTM TECHNOLOGIES, INC.

17) UCORE RARE METALS

18) UMICORE OPTICAL MATERIALS USA, INC.