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

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