[VMC] | Vulcan Materials Company |
[SLCA] | U.S. Silica Holdings Inc. |
[TCK] | Teck Resources Ltd |
[SUM] | Summit Materials Inc. |
[SQM] | Sociedad Quimica y Minera S.A. |
[MDU] | MDU Resources Group Inc. |
[MLM] | Martin Marietta Materials Inc. |
[IPI] | Intrepid Potash Inc |
[HCLP] | Hi-Crush Partners LP |
[HL] | Hecla Mining Company |
[HL^B] | Hecla Mining Company |
[FMSA] | Fairmount Santrol Holdings Inc. |
[CMP] | Compass Minerals International Inc. |
[CINR] | Ciner Resources LP |
[VMC] | Vulcan Materials Company |
[SLCA] | U.S. Silica Holdings Inc. |
[TCK] | Teck Resources Ltd |
[SUM] | Summit Materials Inc. |
[SQM] | Sociedad Quimica y Minera S.A. |
[MDU] | MDU Resources Group Inc. |
[MLM] | Martin Marietta Materials Inc. |
[IPI] | Intrepid Potash Inc |
[HCLP] | Hi-Crush Partners LP |
[HL^B] | Hecla Mining Company |
[HL] | Hecla Mining Company |
[FMSA] | Fairmount Santrol Holdings Inc. |
[CMP] | Compass Minerals International Inc. |
[CINR] | Ciner Resources LP |
[USLM] | United States Lime & Minerals Inc. |