Symbol Grade Name Industry
AA Grade c Alcoa Inc. Aluminum
AAU Grade d Almaden Minerals, Ltd. Gold Mining
ABX Grade d Barrick Gold Corporation Gold Mining
ACH Grade c Aluminum Corporation of China Aluminum
AEM Grade c Agnico Eagle Mines Limited Gold Mining
AG Grade d First Majestic Silver Corp. Silver Mining
AGI Grade f Alamos Gold Inc Gold Mining
AKG Grade d Asanko Gold Inc. Gold Mining
AKS Grade c AK Steel Holding Corporation Iron, Steel Mills & Foundries
ALB Grade f Albemarle Corporation Commodity Chemicals
ALJJ Grade c ALJ Regional Holdings, Inc. Iron, Steel Mills & Foundries
ALO Grade d Alio Gold Inc. Gold Mining
AMRK Grade f A-Mark Precious Metals, Inc. Integrated Mining
AMRS Grade c Amyris, Inc. Industrial Biotechnology Chemicals
APD Grade c Air Products and Chemicals, Inc. Commodity Chemicals
APDN Grade f Applied DNA Sciences Inc Specialty Chemicals
AQMS Grade f Aqua Metals, Inc. Nonferrous Metal Processing
ARD Grade f Ardagh Group S.A. Non-Paper Containers & Packaging
ARNC Grade b Arconic Inc. Aluminum
ASIX Grade d AdvanSix Inc. Specialty Chemicals
ASM Grade d Avino Silver & Gold Mines Ltd. Integrated Mining
ATI Grade b Allegheny Technologies Incorporated Integrated Mining
ATKR Grade c Atkore International Group Inc. Metallic Rolling & Drawing Products
ATR Grade b AptarGroup, Inc. Plastic Container & Packaging
AU Grade c AngloGold Ashanti Limited Gold Mining
AUMN Grade d Golden Minerals Company Silver Mining
AUY Grade b Yamana Gold Inc. Integrated Mining
AVD Grade c American Vanguard Corporation Agricultural Chemicals
AVY Grade b Avery Dennison Corporation Non-Paper Containers & Packaging
AWI Grade c Armstrong World Industries Inc Construction Materials
AXTA Grade d Axalta Coating Systems Ltd. Paint & Coating
BAA Grade f BANRO Corporation Gold Mining
BAK Grade b Braskem SA ADR Commodity Chemicals
BBL Grade b BHP Billiton plc Sponsored ADR Integrated Mining
BCC Grade a Boise Cascade, L.L.C. Logging & Sawmills
BERY Grade c Berry Plastics Group, Inc. Plastic Container & Packaging
BHP Grade b BHP Billiton Limited Integrated Mining
BIOA Grade d BioAmber Inc. Specialty Chemicals
BLL Grade d Ball Corporation Non-Paper Containers & Packaging
BMCH Grade c BMC Stock Holdings, Inc. Wood Products
BMS Grade c Bemis Company, Inc. Non-Paper Containers & Packaging
BOOM Grade b Dynamic Materials Corporation Steel
BRSS Grade d Global Brass and Copper Holdings, Inc. Nonferrous Metal Processing
BTG Grade c B2Gold Corp Gold Mining
BVN Grade b Buenaventura Mining Company Inc. Gold Mining
BXC Grade a Bluelinx Holdings Inc. Wood Product Wholesale
CADC Grade d China Advanced Construction Materials Group, Inc. Construction Materials
CBT Grade a Cabot Corporation Specialty Chemicals
CC Grade b Chemours Company (The) Commodity Chemicals
CCC Grade d Calgon Carbon Corporation Commodity Chemicals
CCK Grade d Crown Holdings, Inc. Non-Paper Containers & Packaging
CDE Grade d Coeur Mining, Inc. Silver Mining
CE Grade a Celanese Corporation Commodity Chemicals
CENX Grade b Century Aluminum Company Primary Aluminum Production
CF Grade c CF Industries Holdings, Inc. Fertilizer
CGA Grade c China Green Agriculture, Inc. Agricultural Chemicals
CINR Grade c Ciner Resources LP Agricultural Chemicals
CLF Grade c Cliffs Natural Resources Inc Steel
CLW Grade c Clearwater Paper Corporation Pulp Mills
CMC Grade c Commercial Metals Company Steel
CMP Grade c Compass Minerals Intl Inc Agricultural Chemicals
CMT Grade d Core Molding Technologies Inc Plastic Container & Packaging
CRH Grade b CRH PLC Construction Materials
CRS Grade b Carpenter Technology Corporation Steel
CSTM Grade b Constellium N.V. Aluminum Rolling
CSWI Grade b CSW Industrials, Inc. Commodity Chemicals
CX Grade d Cemex, S.A.B. de C.V. Sponsored ADR Construction Materials
DEL Grade b Deltic Timber Corporation Logging & Sawmills
DMLP Grade c Dorchester Minerals, L.P. - Integrated Mining
DRD Grade f DRDGOLD Gold Mining
DWDP Grade b DowDuPont Inc. Diversified Chemicals
ECL Grade a Ecolab Inc. Specialty Chemicals
EGI Grade d Entree Gold Inc Integrated Mining
EGO Grade d Eldorado Gold Corporation Gold Mining
EMN Grade a Eastman Chemical Company Commodity Chemicals
ENZY Grade b Enzymotec Ltd. Commodity Chemicals
EXK Grade d Endeavour Silver Corporation Silver Mining
EXP Grade c Eagle Materials Inc Cement & Concrete Manufacturing
FBR Grade b Fibria Celulose S.A. Pulp Mills
FCX Grade b Freeport-McMoRan Copper & Gold, Inc. Integrated Mining
FFHL Grade c Fuwei Films (Holdings) Co., Ltd. Non-Paper Containers & Packaging
FMC Grade d FMC Corporation Diversified Chemicals
FNV Grade d Franco-Nevada Corporation Gold
FOE Grade b Ferro Corporation Specialty Chemicals
FRTA Grade d Forterra, Inc. Construction Materials
FSI Grade d Flexible Solutions International Inc. Specialty Chemicals
FSM Grade c Fortuna Silver Mines Inc Integrated Mining
FSTR Grade c L.B. Foster Company Steel
FUL Grade c H. B. Fuller Company Adhesive
GCP Grade a GCP Applied Technologies Inc. Construction Materials
GEF Grade c Greif Inc. Non-Paper Containers & Packaging
GEF.B Grade c Greif, Inc. Corporation Class B Non-Paper Containers & Packaging
GFI Grade c Gold Fields Gold
GG Grade c Goldcorp Inc. Gold
GGB Grade c Gerdau S.A. Steel
GLT Grade b Glatfelter Paper Mills & Products
GMO Grade c General Moly, Inc. Specialty Mining & Metals
GMS Grade c GMS Inc. Wood Product Wholesale
GOLD Grade c Randgold Resources Limited Gold
GORO Grade c Gold Resource Corporation Integrated Mining
GPK Grade b Graphic Packaging Holding Company Paper Packaging
GPL Grade c Great Panther Silver Silver Mining
GRA Grade b W.R. Grace & Co. Specialty Chemicals
GSM Grade d Globe Specialty Metals Inc. Specialty Mining & Metals
GSS Grade d Golden Star Resources, Ltd Gold Mining
GSV Grade c Gold Standard Ventures Corporation (Canada) Gold Mining
GURE Grade d Gulf Resources, Inc. Commodity Chemicals
HAYN Grade c Haynes International, Inc. Iron, Steel Mills & Foundries
HBM Grade c Hudbay Minerals Inc Copper Ore Mining
HBP Grade c Huttig Building Products, Inc. Wood Product Wholesale
HCC Grade c Warrior Met Coal, Inc. Coke Coal Mining
HCLP Grade c Hi-Crush Partners LP Specialty Mining & Metals
HIHO Grade b Highway Holdings Limited Metal Service Centers
HL Grade d Hecla Mining Company Precious Metals & Minerals
HMY Grade f Harmony Gold Mining Company Limited Gold
HSC Grade c Harsco Corporation Mining Support Services & Equipment
HUN Grade a Huntsman Corporation Specialty Chemicals
HWKN Grade f Hawkins, Inc. Diversified Chemicals
IAG Grade c Iamgold Corporation Gold Mining
IKNX Grade f Ikonics Corporation Specialty Chemicals
IOSP Grade b Innospec Inc. Specialty Chemicals
IP Grade a International Paper Company Paper Packaging
IPHS Grade c Innophos Holdings, Inc. Commodity Chemicals
IPI Grade c Intrepid Potash, Inc Agricultural Chemicals
JCTCF Grade d Jewett-Cameron Trading Company Wood Products
JHX Grade c James Hardie Industries plc Cement & Concrete Manufacturing
KALU Grade b Kaiser Aluminum Corporation Primary Aluminum Production
KGC Grade d Kinross Gold Corporation Gold Mining
KLDX Grade f Klondex Mines Ltd. Gold Mining
KMG Grade c KMG Chemicals, Inc. Specialty Chemicals
KOP Grade d Koppers Holdings Inc. Commodity Chemicals
KRA Grade c Kraton Performance Polymers, Inc Specialty Chemicals
KRO Grade b Kronos Worldwide Inc Specialty Chemicals
KS Grade b KapStone Paper and Packaging Corporation Paper Packaging
KWR Grade c Quaker Chemical Corporation Commodity Chemicals
LBIX Grade c Leading Brands Inc Non-Paper Containers & Packaging
LODE Grade d Comstock Mining, Inc. Integrated Mining
LOMA Grade c Loma Negra Companía Industrial Argentina Sociedad Anónima ADS Cement & Concrete Manufacturing
LPX Grade b Louisiana-Pacific Corporation Wood Products
LXFR Grade c Luxfer Holdings PLC Specialty Mining & Metals
LXU Grade c LSB Industries, Inc. Fertilizer
LYB Grade a LyondellBasell Industries NV Commodity Chemicals
MAG Grade d Mag Silver Corporation Integrated Mining
MBII Grade d Marrone Bio Innovations, Inc. Agricultural Chemicals
MEOH Grade c Methanex Corporation Commodity Chemicals
MERC Grade a Mercer International Inc. Paper Products
METC Grade c Ramaco Resources, Inc. Coke Coal Mining
MLM Grade c Martin Marietta Materials, Inc. Construction Materials
MON Grade b Monsanto Company Agricultural Chemicals
MOS Grade c Mosaic Company (The) Fertilizer
MPVD Grade d Mountain Province Diamonds Inc. Precious Metals & Minerals
MT Grade b Arcelor Mittal Steel
MTL Grade c Mechel OAO Steel
MTRN Grade a Materion Corporation Nonferrous Metal Processing
MTX Grade c Minerals Technologies Inc. Specialty Chemicals
MUX Grade d McEwen Mining Inc. Integrated Mining
MYE Grade b Myers Industries, Inc. Plastic Container & Packaging
NAK Grade f Northern Dynasty Minerals, Ltd. Integrated Mining
NEM Grade b Newmont Mining Corporation Gold Mining
NEU Grade d NewMarket Corp Commodity Chemicals
NEXA Grade c Nexa Resources S.A. Integrated Mining
NG Grade d Novagold Resources Inc. Gold Mining
NGD Grade d New Gold Inc. Integrated Mining
NGVT Grade b Ingevity Corporation Commodity Chemicals
NP Grade a Neenah Paper, Inc. Paper Mills & Products
NSU Grade c Nevsun Resources Specialty Mining & Metals
NTR Grade c Nutrien Ltd. Agricultural Chemicals
NUE Grade c Nucor Corporation Steel
NWPX Grade b Northwest Pipe Company Steel
NXEO Grade c Nexeo Solutions, Inc. Commodity Chemicals Wholesale
OCIP Grade c OCI Partners LP Specialty Chemicals
OEC Grade a Orion Engineered Carbons S.A Specialty Chemicals
OI Grade d Owens-Illinois, Inc. Glass Containers & Packaging
OLN Grade c Olin Corporation Commodity Chemicals
OMN Grade b OMNOVA Solutions Inc. Specialty Chemicals
ONP Grade c Orient Paper, Inc. Paper Products
OSN Grade c Ossen Innovation Co., Ltd. Steel
PAAS Grade d Pan American Silver Corp. Silver Mining
PGEM Grade c Ply Gem Holdings, Inc. Construction Material Wholesale
PGLC Grade f Pershing Gold Corporation Gold Mining
PKG Grade c Packaging Corporation of America Paper Packaging
PKX Grade a POSCO Steel
PLG Grade d Platinum Group Metals Ltd. Platinum Mining
PLM Grade c Polymet Mining Corporation Integrated Mining
POL Grade c PolyOne Corporation Diversified Chemicals
POPE Grade c Pope Resources - Limited Partnership Timber Tract Operations
PPG Grade b PPG Industries, Inc. Paint & Coating
PQG Grade b PQ Group Holdings Inc. Commodity Chemicals
PVG Grade c Pretium Resources, Inc. Integrated Mining
PX Grade c Praxair, Inc. Commodity Chemicals
RELY Grade f Signature Group Holdings, Inc. Secondary Smelting & Alloying of Aluminum
RFP Grade a Resolute Forest Products Inc. Newsprint Mills
RGLD Grade b Royal Gold, Inc. Gold Mining
RIC Grade c Richmont Mines, Inc. Gold
RIO Grade c Rio Tinto Plc Integrated Mining
RKDA Grade d Arcadia Biosciences, Inc. Agricultural Chemicals
ROCK Grade c Gibraltar Industries, Inc. Steel
RPM Grade c RPM International Inc. Paint & Coating
RS Grade b Reliance Steel & Aluminum Co. Metal Service Centers
RYAM Grade c Rayonier Advanced Materials Inc. Specialty Chemicals
RYI Grade c Ryerson Holding Corporation Metal Service Centers
SA Grade d Seabridge Gold, Inc. Integrated Mining
SAND Grade b Sandstorm Gold Ltd. Gold Mining
SBGL Grade d Sibanye Gold Limited Gold
SCCO Grade a Southern Copper Corporation Specialty Mining & Metals
SCHN Grade b Schnitzer Steel Industries, Inc. Iron, Steel Mills & Foundries
SCL Grade d Stepan Company Specialty Chemicals
SEE Grade b Sealed Air Corporation Non-Paper Containers & Packaging
SEII Grade d Sharing Economy International Inc. Iron, Steel Mills & Foundries
SHLM Grade b A. Schulman, Inc. Commodity Chemicals
SHW Grade b Sherwin-Williams Company (The) Paint & Coating
SID Grade c Companhia Siderurgica Nacional S.A. Steel
SIF Grade f SIFCO Industries, Inc. Iron, Steel Mills & Foundries
SIM Grade c Grupo Simec, S.A.B. de C.V. Steel
SLCA Grade c U.S. Silica Holdings, Inc. Specialty Mining & Metals
SLGN Grade d Silgan Holdings, Inc. Non-Paper Containers & Packaging
SMG Grade c Scotts Miracle-Gro Company (The) Agricultural Chemicals
SND Grade c Smart Sand, Inc. Construction Materials
SON Grade b Sonoco Products Company Non-Paper Containers & Packaging
SQM Grade d Sociedad Quimica y Minera S.A. Agricultural Chemicals
SRDX Grade d SurModics, Inc. Adhesive
SSRM Grade d SSR Mining Inc. Silver Mining
STLD Grade b Steel Dynamics, Inc. Steel
SUM Grade c Summit Materials, Inc. Construction Materials
SVM Grade c Silvercorp Metals Inc. Silver Mining
SWM Grade b Schweitzer-Mauduit International, Inc. Paper Products
SXC Grade c SunCoke Energy, Inc. Steel
SXCP Grade b SunCoke Energy Partners, L.P. Steel
SXT Grade f Sensient Technologies Corporation Specialty Chemicals
SYNL Grade d Synalloy Corporation Steel
SYT Grade a Syngenta AG Agricultural Chemicals
TAHO Grade d Tahoe Resources, Inc. Precious Metals & Minerals
TANH Grade f Tantech Holdings Ltd. Commodity Chemicals
TECK Grade b Teck Resources Ltd Integrated Mining
TG Grade c Tredegar Corporation Plastic Container & Packaging
TGB Grade d Taseko Mines, Ltd. Specialty Mining & Metals
THM Grade d International Tower Hill Mines, Ltd. Gold Mining
TMQ Grade b Trilogy Metals Inc. Integrated Mining
TMST Grade c Timken Steel Corporation Iron, Steel Mills & Foundries
TNH Grade c Terra Nitrogen Company, L.P. Fertilizer
TORM Grade d TOR Minerals International Inc Specialty Chemicals
TREC Grade b Trecora Resources Iron Ore Mining
TRQ Grade c Turquoise Hill Resources Ltd. Integrated Mining
TRS Grade b TriMas Corporation Non-Paper Containers & Packaging
TRX Grade d Tanzanian Royalty Exploration Corporation Gold Mining
TSE Grade b Trinseo S.A. Specialty Chemicals
TX Grade c Ternium S.A. Iron, Steel Mills & Foundries
UAMY Grade d United States Antimony Corporation Specialty Mining & Metals
UAN Grade c CVR Partners, LP Fertilizer
UFAB Grade d Unique Fabricating, Inc. Plastics
UFPI Grade b Universal Forest Products, Inc. Logging & Sawmills
UFPT Grade c UFP Technologies, Inc. Commodity Chemicals
UFS Grade b Domtar Corporation Paper Products
UNVR Grade c Univar Inc. Commodity Chemicals Wholesale
USAP Grade b Universal Stainless & Alloy Products, Inc. Iron, Steel Mills & Foundries
USCR Grade d U S Concrete, Inc. Cement & Concrete Manufacturing
USEG Grade c U.S. Energy Corp. Mining Support Activities
USG Grade c USG Corporation Construction Materials
VALE Grade b VALE S.A. Iron Ore Mining
VALE.P Grade d VALE S.A. Iron Ore Mining
VEDL Grade c Vedanta Copper Ore Mining
VGZ Grade d Vista Gold Corp Gold Mining
VHI Grade c Valhi, Inc. Coloring Agent
VMC Grade b Vulcan Materials Company (Holding Company) Construction Materials
VNTR Grade c Venator Materials PLC Coloring Agent
VRTV Grade d Veritiv Corporation Paper Product Wholesale
VSM Grade b Versum Materials, Inc. Specialty Chemicals
VVV Grade b Valvoline Inc. Specialty Chemicals
WLK Grade c Westlake Chemical Corporation Commodity Chemicals
WLKP Grade c Westlake Chemical Partners LP Commodity Chemicals
WOR Grade c Worthington Industries, Inc. Iron, Steel Mills & Foundries
WPM Grade b Wheaton Precious Metals Corp Precious Metals & Minerals
WRK Grade b Westrock Company Paper Packaging
X Grade c United States Steel Corporation Steel
XPL Grade d Solitario Exploration & Royalty Corp Integrated Mining
XXII Grade b 22nd Century Group, Inc. Mining Support Activities
ZEUS Grade c Olympic Steel, Inc. Steel

Symbol Grade Name Industry
AA Grade c Alcoa Inc. Aluminum
AAU Grade d Almaden Minerals, Ltd. Gold Mining
ABX Grade d Barrick Gold Corporation Gold Mining
ACH Grade c Aluminum Corporation of China Aluminum
AEM Grade c Agnico Eagle Mines Limited Gold Mining
AG Grade d First Majestic Silver Corp. Silver Mining
AGI Grade f Alamos Gold Inc Gold Mining
AKG Grade d Asanko Gold Inc. Gold Mining
AKS Grade c AK Steel Holding Corporation Iron, Steel Mills & Foundries
ALB Grade f Albemarle Corporation Commodity Chemicals
ALJJ Grade c ALJ Regional Holdings, Inc. Iron, Steel Mills & Foundries
ALO Grade d Alio Gold Inc. Gold Mining
AMRK Grade f A-Mark Precious Metals, Inc. Integrated Mining
AMRS Grade c Amyris, Inc. Industrial Biotechnology Chemicals
APD Grade c Air Products and Chemicals, Inc. Commodity Chemicals
APDN Grade f Applied DNA Sciences Inc Specialty Chemicals
AQMS Grade f Aqua Metals, Inc. Nonferrous Metal Processing
ARD Grade f Ardagh Group S.A. Non-Paper Containers & Packaging
ARNC Grade b Arconic Inc. Aluminum
ASIX Grade d AdvanSix Inc. Specialty Chemicals
ASM Grade d Avino Silver & Gold Mines Ltd. Integrated Mining
ATI Grade b Allegheny Technologies Incorporated Integrated Mining
ATKR Grade c Atkore International Group Inc. Metallic Rolling & Drawing Products
ATR Grade b AptarGroup, Inc. Plastic Container & Packaging
AU Grade c AngloGold Ashanti Limited Gold Mining
AUMN Grade d Golden Minerals Company Silver Mining
AUY Grade b Yamana Gold Inc. Integrated Mining
AVD Grade c American Vanguard Corporation Agricultural Chemicals
AVY Grade b Avery Dennison Corporation Non-Paper Containers & Packaging
AWI Grade c Armstrong World Industries Inc Construction Materials
AXTA Grade d Axalta Coating Systems Ltd. Paint & Coating
BAA Grade f BANRO Corporation Gold Mining
BAK Grade b Braskem SA ADR Commodity Chemicals
BBL Grade b BHP Billiton plc Sponsored ADR Integrated Mining
BCC Grade a Boise Cascade, L.L.C. Logging & Sawmills
BERY Grade c Berry Plastics Group, Inc. Plastic Container & Packaging
BHP Grade b BHP Billiton Limited Integrated Mining
BIOA Grade d BioAmber Inc. Specialty Chemicals
BLL Grade d Ball Corporation Non-Paper Containers & Packaging
BMCH Grade c BMC Stock Holdings, Inc. Wood Products
BMS Grade c Bemis Company, Inc. Non-Paper Containers & Packaging
BOOM Grade b Dynamic Materials Corporation Steel
BRSS Grade d Global Brass and Copper Holdings, Inc. Nonferrous Metal Processing
BTG Grade c B2Gold Corp Gold Mining
BVN Grade b Buenaventura Mining Company Inc. Gold Mining
BXC Grade a Bluelinx Holdings Inc. Wood Product Wholesale
CADC Grade d China Advanced Construction Materials Group, Inc. Construction Materials
CBT Grade a Cabot Corporation Specialty Chemicals
CC Grade b Chemours Company (The) Commodity Chemicals
CCC Grade d Calgon Carbon Corporation Commodity Chemicals
CCK Grade d Crown Holdings, Inc. Non-Paper Containers & Packaging
CDE Grade d Coeur Mining, Inc. Silver Mining
CE Grade a Celanese Corporation Commodity Chemicals
CENX Grade b Century Aluminum Company Primary Aluminum Production
CF Grade c CF Industries Holdings, Inc. Fertilizer
CGA Grade c China Green Agriculture, Inc. Agricultural Chemicals
CINR Grade c Ciner Resources LP Agricultural Chemicals
CLF Grade c Cliffs Natural Resources Inc Steel
CLW Grade c Clearwater Paper Corporation Pulp Mills
CMC Grade c Commercial Metals Company Steel
CMP Grade c Compass Minerals Intl Inc Agricultural Chemicals
CMT Grade d Core Molding Technologies Inc Plastic Container & Packaging
CRH Grade b CRH PLC Construction Materials
CRS Grade b Carpenter Technology Corporation Steel
CSTM Grade b Constellium N.V. Aluminum Rolling
CSWI Grade b CSW Industrials, Inc. Commodity Chemicals
CX Grade d Cemex, S.A.B. de C.V. Sponsored ADR Construction Materials
DEL Grade b Deltic Timber Corporation Logging & Sawmills
DMLP Grade c Dorchester Minerals, L.P. - Integrated Mining
DRD Grade f DRDGOLD Gold Mining
DWDP Grade b DowDuPont Inc. Diversified Chemicals
ECL Grade a Ecolab Inc. Specialty Chemicals
EGI Grade d Entree Gold Inc Integrated Mining
EGO Grade d Eldorado Gold Corporation Gold Mining
EMN Grade a Eastman Chemical Company Commodity Chemicals
ENZY Grade b Enzymotec Ltd. Commodity Chemicals
EXK Grade d Endeavour Silver Corporation Silver Mining
EXP Grade c Eagle Materials Inc Cement & Concrete Manufacturing
FBR Grade b Fibria Celulose S.A. Pulp Mills
FCX Grade b Freeport-McMoRan Copper & Gold, Inc. Integrated Mining
FFHL Grade c Fuwei Films (Holdings) Co., Ltd. Non-Paper Containers & Packaging
FMC Grade d FMC Corporation Diversified Chemicals
FNV Grade d Franco-Nevada Corporation Gold
FOE Grade b Ferro Corporation Specialty Chemicals
FRTA Grade d Forterra, Inc. Construction Materials
FSI Grade d Flexible Solutions International Inc. Specialty Chemicals
FSM Grade c Fortuna Silver Mines Inc Integrated Mining
FSTR Grade c L.B. Foster Company Steel
FUL Grade c H. B. Fuller Company Adhesive
GCP Grade a GCP Applied Technologies Inc. Construction Materials
GEF Grade c Greif Inc. Non-Paper Containers & Packaging
GEF.B Grade c Greif, Inc. Corporation Class B Non-Paper Containers & Packaging
GFI Grade c Gold Fields Gold
GG Grade c Goldcorp Inc. Gold
GGB Grade c Gerdau S.A. Steel
GLT Grade b Glatfelter Paper Mills & Products
GMO Grade c General Moly, Inc. Specialty Mining & Metals
GMS Grade c GMS Inc. Wood Product Wholesale
GOLD Grade c Randgold Resources Limited Gold
GORO Grade c Gold Resource Corporation Integrated Mining
GPK Grade b Graphic Packaging Holding Company Paper Packaging
GPL Grade c Great Panther Silver Silver Mining
GRA Grade b W.R. Grace & Co. Specialty Chemicals
GSM Grade d Globe Specialty Metals Inc. Specialty Mining & Metals
GSS Grade d Golden Star Resources, Ltd Gold Mining
GSV Grade c Gold Standard Ventures Corporation (Canada) Gold Mining
GURE Grade d Gulf Resources, Inc. Commodity Chemicals
HAYN Grade c Haynes International, Inc. Iron, Steel Mills & Foundries
HBM Grade c Hudbay Minerals Inc Copper Ore Mining
HBP Grade c Huttig Building Products, Inc. Wood Product Wholesale
HCC Grade c Warrior Met Coal, Inc. Coke Coal Mining
HCLP Grade c Hi-Crush Partners LP Specialty Mining & Metals
HIHO Grade b Highway Holdings Limited Metal Service Centers
HL Grade d Hecla Mining Company Precious Metals & Minerals
HMY Grade f Harmony Gold Mining Company Limited Gold
HSC Grade c Harsco Corporation Mining Support Services & Equipment
HUN Grade a Huntsman Corporation Specialty Chemicals
HWKN Grade f Hawkins, Inc. Diversified Chemicals
IAG Grade c Iamgold Corporation Gold Mining
IKNX Grade f Ikonics Corporation Specialty Chemicals
IOSP Grade b Innospec Inc. Specialty Chemicals
IP Grade a International Paper Company Paper Packaging
IPHS Grade c Innophos Holdings, Inc. Commodity Chemicals
IPI Grade c Intrepid Potash, Inc Agricultural Chemicals
JCTCF Grade d Jewett-Cameron Trading Company Wood Products
JHX Grade c James Hardie Industries plc Cement & Concrete Manufacturing
KALU Grade b Kaiser Aluminum Corporation Primary Aluminum Production
KGC Grade d Kinross Gold Corporation Gold Mining
KLDX Grade f Klondex Mines Ltd. Gold Mining
KMG Grade c KMG Chemicals, Inc. Specialty Chemicals
KOP Grade d Koppers Holdings Inc. Commodity Chemicals
KRA Grade c Kraton Performance Polymers, Inc Specialty Chemicals
KRO Grade b Kronos Worldwide Inc Specialty Chemicals
KS Grade b KapStone Paper and Packaging Corporation Paper Packaging
KWR Grade c Quaker Chemical Corporation Commodity Chemicals
LBIX Grade c Leading Brands Inc Non-Paper Containers & Packaging
LODE Grade d Comstock Mining, Inc. Integrated Mining
LOMA Grade c Loma Negra Companía Industrial Argentina Sociedad Anónima ADS Cement & Concrete Manufacturing
LPX Grade b Louisiana-Pacific Corporation Wood Products
LXFR Grade c Luxfer Holdings PLC Specialty Mining & Metals
LXU Grade c LSB Industries, Inc. Fertilizer
LYB Grade a LyondellBasell Industries NV Commodity Chemicals
MAG Grade d Mag Silver Corporation Integrated Mining
MBII Grade d Marrone Bio Innovations, Inc. Agricultural Chemicals
MEOH Grade c Methanex Corporation Commodity Chemicals
MERC Grade a Mercer International Inc. Paper Products
METC Grade c Ramaco Resources, Inc. Coke Coal Mining
MLM Grade c Martin Marietta Materials, Inc. Construction Materials
MON Grade b Monsanto Company Agricultural Chemicals
MOS Grade c Mosaic Company (The) Fertilizer
MPVD Grade d Mountain Province Diamonds Inc. Precious Metals & Minerals
MT Grade b Arcelor Mittal Steel
MTL Grade c Mechel OAO Steel
MTRN Grade a Materion Corporation Nonferrous Metal Processing
MTX Grade c Minerals Technologies Inc. Specialty Chemicals
MUX Grade d McEwen Mining Inc. Integrated Mining
MYE Grade b Myers Industries, Inc. Plastic Container & Packaging
NAK Grade f Northern Dynasty Minerals, Ltd. Integrated Mining
NEM Grade b Newmont Mining Corporation Gold Mining
NEU Grade d NewMarket Corp Commodity Chemicals
NEXA Grade c Nexa Resources S.A. Integrated Mining
NG Grade d Novagold Resources Inc. Gold Mining
NGD Grade d New Gold Inc. Integrated Mining
NGVT Grade b Ingevity Corporation Commodity Chemicals
NP Grade a Neenah Paper, Inc. Paper Mills & Products
NSU Grade c Nevsun Resources Specialty Mining & Metals
NTR Grade c Nutrien Ltd. Agricultural Chemicals
NUE Grade c Nucor Corporation Steel
NWPX Grade b Northwest Pipe Company Steel
NXEO Grade c Nexeo Solutions, Inc. Commodity Chemicals Wholesale
OCIP Grade c OCI Partners LP Specialty Chemicals
OEC Grade a Orion Engineered Carbons S.A Specialty Chemicals
OI Grade d Owens-Illinois, Inc. Glass Containers & Packaging
OLN Grade c Olin Corporation Commodity Chemicals
OMN Grade b OMNOVA Solutions Inc. Specialty Chemicals
ONP Grade c Orient Paper, Inc. Paper Products
OSN Grade c Ossen Innovation Co., Ltd. Steel
PAAS Grade d Pan American Silver Corp. Silver Mining
PGEM Grade c Ply Gem Holdings, Inc. Construction Material Wholesale
PGLC Grade f Pershing Gold Corporation Gold Mining
PKG Grade c Packaging Corporation of America Paper Packaging
PKX Grade a POSCO Steel
PLG Grade d Platinum Group Metals Ltd. Platinum Mining
PLM Grade c Polymet Mining Corporation Integrated Mining
POL Grade c PolyOne Corporation Diversified Chemicals
POPE Grade c Pope Resources - Limited Partnership Timber Tract Operations
PPG Grade b PPG Industries, Inc. Paint & Coating
PQG Grade b PQ Group Holdings Inc. Commodity Chemicals
PVG Grade c Pretium Resources, Inc. Integrated Mining
PX Grade c Praxair, Inc. Commodity Chemicals
RELY Grade f Signature Group Holdings, Inc. Secondary Smelting & Alloying of Aluminum
RFP Grade a Resolute Forest Products Inc. Newsprint Mills
RGLD Grade b Royal Gold, Inc. Gold Mining
RIC Grade c Richmont Mines, Inc. Gold
RIO Grade c Rio Tinto Plc Integrated Mining
RKDA Grade d Arcadia Biosciences, Inc. Agricultural Chemicals
ROCK Grade c Gibraltar Industries, Inc. Steel
RPM Grade c RPM International Inc. Paint & Coating
RS Grade b Reliance Steel & Aluminum Co. Metal Service Centers
RYAM Grade c Rayonier Advanced Materials Inc. Specialty Chemicals
RYI Grade c Ryerson Holding Corporation Metal Service Centers
SA Grade d Seabridge Gold, Inc. Integrated Mining
SAND Grade b Sandstorm Gold Ltd. Gold Mining
SBGL Grade d Sibanye Gold Limited Gold
SCCO Grade a Southern Copper Corporation Specialty Mining & Metals
SCHN Grade b Schnitzer Steel Industries, Inc. Iron, Steel Mills & Foundries
SCL Grade d Stepan Company Specialty Chemicals
SEE Grade b Sealed Air Corporation Non-Paper Containers & Packaging
SEII Grade d Sharing Economy International Inc. Iron, Steel Mills & Foundries
SHLM Grade b A. Schulman, Inc. Commodity Chemicals
SHW Grade b Sherwin-Williams Company (The) Paint & Coating
SID Grade c Companhia Siderurgica Nacional S.A. Steel
SIF Grade f SIFCO Industries, Inc. Iron, Steel Mills & Foundries
SIM Grade c Grupo Simec, S.A.B. de C.V. Steel
SLCA Grade c U.S. Silica Holdings, Inc. Specialty Mining & Metals
SLGN Grade d Silgan Holdings, Inc. Non-Paper Containers & Packaging
SMG Grade c Scotts Miracle-Gro Company (The) Agricultural Chemicals
SND Grade c Smart Sand, Inc. Construction Materials
SON Grade b Sonoco Products Company Non-Paper Containers & Packaging
SQM Grade d Sociedad Quimica y Minera S.A. Agricultural Chemicals
SRDX Grade d SurModics, Inc. Adhesive
SSRM Grade d SSR Mining Inc. Silver Mining
STLD Grade b Steel Dynamics, Inc. Steel
SUM Grade c Summit Materials, Inc. Construction Materials
SVM Grade c Silvercorp Metals Inc. Silver Mining
SWM Grade b Schweitzer-Mauduit International, Inc. Paper Products
SXC Grade c SunCoke Energy, Inc. Steel
SXCP Grade b SunCoke Energy Partners, L.P. Steel
SXT Grade f Sensient Technologies Corporation Specialty Chemicals
SYNL Grade d Synalloy Corporation Steel
SYT Grade a Syngenta AG Agricultural Chemicals
TAHO Grade d Tahoe Resources, Inc. Precious Metals & Minerals
TANH Grade f Tantech Holdings Ltd. Commodity Chemicals
TECK Grade b Teck Resources Ltd Integrated Mining
TG Grade c Tredegar Corporation Plastic Container & Packaging
TGB Grade d Taseko Mines, Ltd. Specialty Mining & Metals
THM Grade d International Tower Hill Mines, Ltd. Gold Mining
TMQ Grade b Trilogy Metals Inc. Integrated Mining
TMST Grade c Timken Steel Corporation Iron, Steel Mills & Foundries
TNH Grade c Terra Nitrogen Company, L.P. Fertilizer
TORM Grade d TOR Minerals International Inc Specialty Chemicals
TREC Grade b Trecora Resources Iron Ore Mining
TRQ Grade c Turquoise Hill Resources Ltd. Integrated Mining
TRS Grade b TriMas Corporation Non-Paper Containers & Packaging
TRX Grade d Tanzanian Royalty Exploration Corporation Gold Mining
TSE Grade b Trinseo S.A. Specialty Chemicals
TX Grade c Ternium S.A. Iron, Steel Mills & Foundries
UAMY Grade d United States Antimony Corporation Specialty Mining & Metals
UAN Grade c CVR Partners, LP Fertilizer
UFAB Grade d Unique Fabricating, Inc. Plastics
UFPI Grade b Universal Forest Products, Inc. Logging & Sawmills
UFPT Grade c UFP Technologies, Inc. Commodity Chemicals
UFS Grade b Domtar Corporation Paper Products
UNVR Grade c Univar Inc. Commodity Chemicals Wholesale
USAP Grade b Universal Stainless & Alloy Products, Inc. Iron, Steel Mills & Foundries
USCR Grade d U S Concrete, Inc. Cement & Concrete Manufacturing
USEG Grade c U.S. Energy Corp. Mining Support Activities
USG Grade c USG Corporation Construction Materials
VALE Grade b VALE S.A. Iron Ore Mining
VALE.P Grade d VALE S.A. Iron Ore Mining
VEDL Grade c Vedanta Copper Ore Mining
VGZ Grade d Vista Gold Corp Gold Mining
VHI Grade c Valhi, Inc. Coloring Agent
VMC Grade b Vulcan Materials Company (Holding Company) Construction Materials
VNTR Grade c Venator Materials PLC Coloring Agent
VRTV Grade d Veritiv Corporation Paper Product Wholesale
VSM Grade b Versum Materials, Inc. Specialty Chemicals
VVV Grade b Valvoline Inc. Specialty Chemicals
WLK Grade c Westlake Chemical Corporation Commodity Chemicals
WLKP Grade c Westlake Chemical Partners LP Commodity Chemicals
WOR Grade c Worthington Industries, Inc. Iron, Steel Mills & Foundries
WPM Grade b Wheaton Precious Metals Corp Precious Metals & Minerals
WRK Grade b Westrock Company Paper Packaging
X Grade c United States Steel Corporation Steel
XPL Grade d Solitario Exploration & Royalty Corp Integrated Mining
XXII Grade b 22nd Century Group, Inc. Mining Support Activities
ZEUS Grade c Olympic Steel, Inc. Steel