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SARA 312 Inventory Repor t Reporting Year 2012 The following OSHA hazardous chemicals were present in your facility. Those chemicals present with a maximum daily quantity in excess of 10,000 pounds during last year must have a Tier One or Tier Two report completed for each product. Tradename MSDS ID CAS YTD Avg Qty Max Qty YTD Component % Mix KRYLON INT/EXT PAINT, BANNER RED 2108 70971635 108656 1,-methoxy-2-propanol acetate 8.00 10 lbs lbs 0 KRYLON INT/EXT PAINT, GLOSSY BLACK 1601 70971650 108656 1,-methoxy-2-propanol acetate 8.00 8 lbs lbs 0 REFRIGERANT 134A (HFC-134A) 8001491 811972 1,1,1,2-tetrafluorethane 100.00 156 lbs lbs 2 CONTACT CLEANER 2000 CLNR-2000 1717006 1,1-dichloro-1-fluoroethane 96.00 946 lbs lbs 7 MARATHON REGULAR UNLEADED GASOLINE 71347120 95636 1,2,4-trimethylbenzene 4.50 10,360 lbs lbs 86 CARBON PITCH LIQUID 9170 56553 1,2-benzanthracene 1.04 159,238 lbs lbs 2,385 CARBON PITCH LIQUID N/A 56553 1,2-benzanthracene 1.04 650,044 lbs lbs 7,864 CARBON PITCH LIQUID 9170 218019 1,2-benzphenanthrene 1.06 162,300 lbs lbs 2,430 CARBON PITCH LIQUID N/A 218019 1,2-benzphenanthrene 1.06 662,545 lbs lbs 8,015 BUCKMAN LABORATORIES BROMINE 8015440 16079882 1-bromo-3-chloro-5,5- dimethylhydantoin 96.00 1,152 lbs lbs 23 KRYLON 1501 INT/EXT GLOSSY WHITE 70971692 71363 1-butanol 2.00 0 lbs lbs 0 Copyright (c) 2006 by MSDS1, Inc. All rights reserved. Saturday, January 12, 2013 Company: Century Aluminum Of Kentucky, LLC Address: P.O. Box 500 Hawesville KY 42348 Page 1

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SARA 312 Inventory ReportReporting Year 2012

The following OSHA hazardous chemicals were present in your facility. Those chemicals present with a maximum daily quantity in excess of 10,000 pounds during last year must have a Tier One or Tier Two report completed for each product.

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

KRYLON INT/EXT PAINT, BANNERRED 2108

70971635 1086561,-methoxy-2-propanol acetate 8.00 10 lbs lbs0

KRYLON INT/EXT PAINT, GLOSSYBLACK 1601

70971650 1086561,-methoxy-2-propanol acetate 8.00 8 lbs lbs0

REFRIGERANT 134A (HFC-134A) 8001491 8119721,1,1,2-tetrafluorethane 100.00 156 lbs lbs2

CONTACT CLEANER 2000 CLNR-2000 17170061,1-dichloro-1-fluoroethane 96.00 946 lbs lbs7

MARATHON REGULARUNLEADED GASOLINE

71347120 956361,2,4-trimethylbenzene 4.50 10,360 lbs lbs86

CARBON PITCH LIQUID 9170 565531,2-benzanthracene 1.04 159,238 lbs lbs2,385

CARBON PITCH LIQUID N/A 565531,2-benzanthracene 1.04 650,044 lbs lbs7,864

CARBON PITCH LIQUID 9170 2180191,2-benzphenanthrene 1.06 162,300 lbs lbs2,430

CARBON PITCH LIQUID N/A 2180191,2-benzphenanthrene 1.06 662,545 lbs lbs8,015

BUCKMAN LABORATORIESBROMINE

8015440 160798821-bromo-3-chloro-5,5-dimethylhydantoin

96.00 1,152 lbs lbs23

KRYLON 1501 INT/EXT GLOSSYWHITE

70971692 713631-butanol 2.00 0 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 1

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

KRYLON HIGH HEAT & RADIATORPAINT BLACK

70971593 713631-butanol 1.00 0 lbs lbs0

KRYLON OSHA COLORS SAFETYYELLOW 1813

70971668 713631-butanol 1.00 1 lbs lbs0

SUVA 124 71315097 3542561-chloro-1,1,2,2-tetrafluoroethane 5.00 72 lbs lbs0

KRYLON 1501 INT/EXT GLOSSYWHITE

70971692 1086561-methoxy-2-propanol acetate 6.00 1 lbs lbs0

KRYLON INT/EXT TRUE BLUE1910

70971643 1086561-methoxy-2-propanol acetate 7.00 9 lbs lbs0

KRYLON OSHA COLORS SAFETYPOP ORNG 2410

70971601 1086561-methoxy-2-propanol acetate 7.00 2 lbs lbs0

KRYLON OSHA COLORS SAFETYPURPLE 1929

70971619 1086561-methoxy-2-propanol acetate 8.00 4 lbs lbs0

KRYLON OSHA COLORS SAFETYYELLOW 1813

70971668 1086561-methoxy-2-propanol acetate 7.00 10 lbs lbs0

SW ENGINE PAINTS 1612UNIVERSAL BLACK

N/A 1086561-methoxy-2-propanol acetate 5.00 4 lbs lbs0

CRAZY CLEAN ALL PURPOSECLEANER

N/A 1117622-butoxy ethanol 4.85 0 lbs lbs0

CRC BATTERY CLEANER 8015660 1117622-butoxyethanol 2.90 0 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 2

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

SUVA 124 71315097 28378902-chloro-1,1,1,2-tetrafluoroethane 94.70 1,369 lbs lbs9

CHEVRON SOLUBLE OIL B,CPS233703

71341440 1074152-methyl-2, 4-pentanediol 25.00 2,644 lbs lbs24

FORM A GASKET #1 SEALANT 70372438 676302-propanol 2.00 0 lbs lbs0

CARBON PITCH LIQUID 9170 83329acenaphthene 0.11 16,842 lbs lbs252

SUPERFLEX BLU RTV SILICONEADHES SEALANT

70863477 64197acetic acid 35.90 37 lbs lbs0

ACETYLENE ACETYLENE 67641acetone 5.00 1 lbs lbs0

BAFCO FILM FREE GLASSCLEANER

GLASSCLN 67641acetone 5.00 10 lbs lbs0

KRYLON 1501 INT/EXT GLOSSYWHITE

70971692 67641acetone 35.00 7 lbs lbs0

KRYLON 1701 INT./EXT. BRIGHTGOLD

70971676 67641acetone 14.00 0 lbs lbs0

KRYLON HIGH HEAT & RADIATORPAINT BLACK

70971593 67641acetone 36.00 9 lbs lbs0

KRYLON HIGH HEAT & RADIATORPAINT,ALUM.

70971585 67641acetone 57.00 90 lbs lbs1

KRYLON INT/EXT PAINT, BANNERRED 2108

70971635 67641acetone 36.00 43 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 3

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

KRYLON INT/EXT PAINT, GLOSSYBLACK 1601

70971650 67641acetone 36.00 34 lbs lbs0

KRYLON INT/EXT TRUE BLUE1910

70971643 67641acetone 37.00 48 lbs lbs0

KRYLON OSHA COLORS SAFETYPOP ORNG 2410

70971601 67641acetone 39.00 11 lbs lbs0

KRYLON OSHA COLORS SAFETYPURPLE 1929

70971619 67641acetone 39.00 17 lbs lbs0

KRYLON OSHA COLORS SAFETYYELLOW 1813

70971668 67641acetone 35.00 49 lbs lbs0

PPG QUICK DRY SPRAY ENML,55-B (302,...)

PPG 55-B 67641acetone 30.00 16 lbs lbs0

SPRAYON RED INSULATINGVARNISH

70947320 67641acetone 18.00 1 lbs lbs0

STEEL INK BLUE (AEROSOL) 70968904 67641acetone 44.00 1 lbs lbs0

SW ENGINE PAINTS 1612UNIVERSAL BLACK

N/A 67641acetone 25.00 20 lbs lbs0

SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER

70971627 67641acetone 37.00 2 lbs lbs0

SW TOUGH COAT S00329MACHINERY BLUE GRAY

70971437 67641acetone 27.00 15 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 4

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

WELDERS BLACK MAGIC 8001890 67641acetone 35.00 8 lbs lbs0

ACETYLENE ACETYLENE 74862acetylene 99.60 25 lbs lbs1

ACETYLENE ACETY 74862acetylene 100.00 5,002 lbs lbs28

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220 1333864acetylene black 7.00 270 lbs lbs2

YELLOW 77 WIRE PULLINGLUBRICANT

70947304 8042475acrylamide sodium acrylatecopolymer w/t

1.00 0 lbs lbs0

KROIL KROIL 123422aliphatic alcohols 10.00 552 lbs lbs3

KROIL KROIL 78922aliphatic alcohols(1) 5.00 276 lbs lbs2

KROIL KROIL 111762aliphatic hydrocarbon solvent 10.00 552 lbs lbs3

LIQUID WRENCH SUPERPENETRANT (POUR)

LIQ. 8008206aliphatic petroleum distillate 90.00 28 lbs lbs0

FLEETWELD 180 ELECTRODESAWS E6011

E6011 584087alkali carbonates 0.50 5 lbs lbs0

PORTERGUARD ALKYD METALPRIMER-WHITE 276

PORTR276alkyd resin 20.00 19 lbs lbs1

CRAZY CLEAN ALL PURPOSECLEANER

N/A 7128918alkyl dimethyl amine oxide 5.00 0 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 5

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

PLIOBOND 30 70934757alkylphenolic resin 12.00 2 lbs lbs0

KAST-O-LITE 50-25 DS LITECAST 1302938alumina silicate 60.00 39,354 lbs lbs290

KAST-O-LITE 50-25 DS LITECAST 1302767alumina silicate (kyanite) 20.00 13,118 lbs lbs97

MORCOSET 50, 50 FIRM & 50DIPPING

9569 1344281aluminium oxide 48.00 16,358 lbs lbs157

MORCOSET 50, 50 FIRM & 50DIPPING

9569 66402684aluminium silicate 25.00 8,520 lbs lbs82

CLEAVER CAST,FURNACAST,HISTRGTH 28-LI..

CLEAVER 66402684alumino silicates 100.00 1,760 lbs lbs59

PHOXBOND PHOXBOND 66402684alumino silicates 100.00 220 lbs lbs5

DERBY 3000 70995692 1302938aluminosilicate 70.00 8,057 lbs lbs77

FIBERFRAX QF CEMENTS CEMNTQF 142844006aluminosilicate fiber refractories 60.00 458 lbs lbs3

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 7429905aluminum 0.10 2 lbs lbs0

HOBART BROTHERS 811N2WELDINGWIRE

71238372 7429905aluminum 3.00 113 lbs lbs1

METAL-COR 6L WELDING WIRE 1000004281 7429905aluminum 5.00 1,584 lbs lbs9

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 6

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

PALCO 450 PAL450 7429905aluminum 10.00 3 lbs lbs0

PALCO 808 8001010 7429905aluminum 1.00 0 lbs lbs0

SILICON METAL SILCN METL 7429905aluminum 1.00 90 lbs lbs2

SODIUM ALUMINUMTETRAFLUORIDE

8015742 7429905aluminum 100.00 88,160 lbs lbs2,939

INNERSHIELD NS-3M ALL SIZES 70977913 7429905aluminum and aluminum alloys 5.00 238 lbs lbs3

CALCINED ALUMINA 9110 1344281aluminum oxide 99.10 91,539,763 lbs lbs3,051,325

DURALUM 70997788 1344281aluminum oxide 99.00 12,474 lbs lbs240

MORCO FEATHERLITE 1600 MORCO160 1344281aluminum oxide 12.00 120 lbs lbs4

MORCOCAST 45-28 SF-0 8001720 1344281aluminum oxide 45.00 52,013 lbs lbs676

MORCOCAST 95C-0 70995600 1344281aluminum oxide 98.00 539 lbs lbs18

MORCOCAST HS-0 MORCOCAS 1344281aluminum oxide 100.00 79,360 lbs lbs811

WHITEBLAST 9562aluminum oxide 0.40 1,091 lbs lbs11

UNI-PLAS 85ESS 70995683 1344281aluminum oxide (alumina) 100.00 76,176 lbs lbs436

LINCOLN 7018 AC ELECTRODE JET LH73 1344281aluminum oxide / bauxite 5.00 3 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 7

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

JETWELD 3, AWS E7024 70977467 1344281aluminum oxide and/or bauxite 1.00 1 lbs lbs0

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220 7429905aluminum paste 3.00 116 lbs lbs1

MORCO FEATHERLITE 1600 MORCO160 66402684aluminum silicate 100.00 1,000 lbs lbs33

MORCOCAST 45-28 SF-0 8001720 66402684aluminum silicate 53.00 61,260 lbs lbs796

MORCOCAST HS-0 MORCOCAS 66402684aluminum silicate 38.00 30,157 lbs lbs308

OATEY #5 PASTE FLUX SOLDRPAS 12125029ammonium chloride 5.00 0 lbs lbs0

KAST-O-LITE 50-25 DS LITECAST 69012642amorphous silica 10.00 6,559 lbs lbs48

METAL-COR 6L WELDING WIRE 1000004281 69012642amorphous silica fumed 2.00 634 lbs lbs4

CARBON PITCH LIQUID 9170 120127anthracene 0.18 27,560 lbs lbs413

YELLOW 77 WIRE PULLINGLUBRICANT

70947304 52517antimicrobial agent 0.10 0 lbs lbs0

44 RESIN FLUX CORED SOLDER 70977327 7440360antimony 10.00 1 lbs lbs0

ACID FLUX CORED SOLDER ACIDFLUX 7440360antimony 100.00 9 lbs lbs0

MOLY E.P. SEMI-SYNTHETICGREASE #2, 274

GREASE #2 15980252antimony dithiocarbamate 3.00 38 lbs lbs1

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 8

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

SNAP STARTING FLUID 70437108antioxidant 1.00 1 lbs lbs0

BAFCO FILM FREE GLASSCLEANER

GLASSCLN 1336216aqua ammonia 5.00 10 lbs lbs0

ARGON ARGONPRA 7440371argon 100.00 37,904 lbs lbs264

HYDROGEN (25%-45%) IN ARGON 71319598 7440371argon 100.00 4,403 lbs lbs83

M-5, 0-5, SIGMA-5 71322584 7440371argon 95.00 194 lbs lbs4

P-10 GAS MIXTURE 70608253 7440371argon 90.00 28 lbs lbs0

STARGOLD C-25 SHIELDING GASMIX

C-25 GAS 7440371argon 75.00 25,962 lbs lbs149

MARATHON REGULARUNLEADED GASOLINE

71347120aromatic hydrocarbons 36.00 82,880 lbs lbs691

U-PRIME, UNIVERSAL PRIMER282,284,285

70971726 64742956aromatic naphtha 5.00 2 lbs lbs0

AEROLEX PLUS AEROSOL AEROLEX 64742956aromatic petroleum distillate 100.00 82 lbs lbs1

PORTERGUARD ALKYD METALPRIMER-WHITE 276

PORTR276 64742956auomatic petroleum distillates 10.00 10 lbs lbs0

PALCO 808 8001010 513779barium carbonate 24.00 1 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 9

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

HOBART BROTHERS 811N2WELDING

71238372 7787328barium fluoride 15.00 564 lbs lbs6

METAL-COR 6L WELDING WIRE 1000004281 7787328barium fluoride 15.00 4,752 lbs lbs28

PALCO 808 8001010 7787328barium fluoride 6.00 0 lbs lbs0

KRYLON INT/EXT TRUE BLUE 70971643 7727437barium sulfate 2.00 3 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 1302789bentonite 5.00 2 lbs lbs0

MARATHON REGULARUNLEADED GASOLINE

71347120 71432benzene 3.20 7,367 lbs lbs61

CARBON PITCH LIQUID 9170 238846benzo(a)fluorene 0.25 38,278 lbs lbs573

CARBON PITCH LIQUID 9170 50328benzo(a)pyrene 1.43 218,952 lbs lbs3,279

CARBON PITCH LIQUID N/A 50328benzo(a)pyrene 1.43 893,811 lbs lbs10,813

CARBON PITCH LIQUID 9170 205992benzo(b)fluoranthene 0.93 142,395 lbs lbs2,132

CARBON PITCH LIQUID N/A 205992benzo(b)fluoranthene 0.93 581,290 lbs lbs7,032

CARBON PITCH LIQUID 9170 243174benzo(b)fluorene 0.35 53,590 lbs lbs803

CARBON PITCH LIQUID 9170 192972benzo(e)pyrene 1.03 157,707 lbs lbs2,362

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 10

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

CARBON PITCH LIQUID 9170 191242benzo(g,h,i)perylrene 1.48 226,608 lbs lbs3,393

CARBON PITCH LIQUID N/A 191242benzo(g,h,i)perylrene 1.48 925,063 lbs lbs11,191

CARBON PITCH LIQUID 9170 205823benzo(j)fluoranthene 0.66 101,055 lbs lbs1,513

CARBON PITCH LIQUID N/A 205823benzo(j)fluoranthene 0.66 412,528 lbs lbs4,991

CARBON PITCH LIQUID 9170 207089benzo(k)fluoranthene 0.62 94,930 lbs lbs1,422

CARBON PITCH LIQUID N/A 207089benzo(k)fluoranthene 0.62 387,527 lbs lbs4,688

44 RESIN FLUX CORED SOLDER 70977327 7440699bismuth 70.00 6 lbs lbs0

ACID FLUX CORED SOLDER ACIDFLUX 7440699bismuth 100.00 9 lbs lbs0

ADHESIVE/SEALANT 271 ADHESI 271 39382257bisphenol a fumarate resin 25.00 0 lbs lbs0

DUPLEX BRAKE FLUID BRAKEFLUIblend of glycol ethers, glycol &polygly

100.00 508 lbs lbs3

SUPERFLEX BLU RTV SILICONEADHES SEALANT

70863477 1345160blue pigment 1.00 1 lbs lbs0

DRI-VIBE (ALL VARIETIES) DRIVIBE 10043353boric acid 5.00 3,189 lbs lbs24

PALCO 808 8001010 7440428boron 0.20 0 lbs lbs0

DRI-VIBE (ALL VARIETIES) DRIVIBE 1303862boron oxide 5.00 3,189 lbs lbs24

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 11

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

KRYLON 1701 INT./EXT. BRIGHTGOLD

70971676bronze pigment 5.00 0 lbs lbs0

CRC DRY GRAPHITE LUBE GRAPHITE 74986butane 20.00 10 lbs lbs0

KRYLON 1501 INT/EXT GLOSSYWHITE

70971692 106978butane 6.00 1 lbs lbs0

KRYLON 1701 INT./EXT. BRIGHTGOLD

70971676 106978butane 16.00 0 lbs lbs0

KRYLON INT/EXT PAINT, BANNERRED 2108

70971635 106978butane 6.00 7 lbs lbs0

KRYLON INT/EXT PAINT, GLOSSYBLACK 1601

70971650 106978butane 6.00 6 lbs lbs0

KRYLON INT/EXT TRUE BLUE1910

70971643 106978butane 6.00 8 lbs lbs0

KRYLON OSHA COLORS SAFETYPOP ORNG 2410

70971601 106978butane 7.00 2 lbs lbs0

KRYLON OSHA COLORS SAFETYPURPLE 1929

70971619 106978butane 6.00 3 lbs lbs0

KRYLON OSHA COLORS SAFETYYELLOW 1813

70971668 106978butane 6.00 8 lbs lbs0

SPRAYON RED INSULATINGVARNISH

70947320 106978butane 13.00 1 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 12

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

STEEL INK BLUE (AEROSOL) 70968904 106978butane 15.00 0 lbs lbs0

SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER

70971627 106978butane 6.00 0 lbs lbs0

SW TOUGH COAT S00329MACHINERY BLUE GRAY

70971437 106978butane 13.00 7 lbs lbs0

STEEL BLUE LAYOUT FLUID STEELBLUE 71363butanol 20.00 5 lbs lbs0

STEEL BLUE LAYOUT FLUID STEELBLUE 123864butyl acetate 30.00 7 lbs lbs0

SILICON METAL SILCN METL 7440702calcium 1.00 90 lbs lbs2

MORCO FEATHERLITE 1600 MORCO160 12042681calcium aluminate 40.00 400 lbs lbs13

MORCOCAST 45-28 SF-0 8001720 12042681calcium aluminate 6.00 6,935 lbs lbs90

MORCOCAST 95C-0 70995600 12042681calcium aluminate 20.00 110 lbs lbs4

MORCOCAST HS-0 MORCOCAS 12042681calcium aluminate 24.00 19,046 lbs lbs195

HI-IMPACT ELECTRODE MANGTROD 1317653calcium carbonate 100.00 150 lbs lbs5

METAL-COR 6L WELDING WIRE 1000004281 1317653calcium carbonate 2.00 634 lbs lbs4

PALCO 700 71344555 1317653calcium carbonate 5.00 3 lbs lbs0

PLIOBOND 30 70934757 471341calcium carbonate 6.00 1 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 13

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

PRESTOCHLOR CALCIUMHYPOCHLORIT GRANULES

71315982 471341calcium carbonate 2.00 2 lbs lbs0

HI-ALLOY 500 WELDINGELECTRODE

500HIALLOY 7789755calcium fluoride 11.00 2 lbs lbs0

HI-IMPACT ELECTRODE MANGTROD 14542233calcium fluoride 100.00 150 lbs lbs5

KAST-O-LITE 50-25 DS LITECAST 12042681calcium fluoride 5.00 3,280 lbs lbs24

PALCO 700 71344555 7789755calcium fluoride 5.00 3 lbs lbs0

PALCO 808 8001010 14542235calcium fluoride 6.00 0 lbs lbs0

FLUORSPAR 9150 7789755calcium fluoride (fluorspar) 100.00 177,000 lbs lbs2,180

HYDRATED LIME 8001691calcium hydroxide 100.00 10,219,348 lbs lbs63,491

PRESTOCHLOR CALCIUMHYPOCHLORIT GRANULES

71315982 1305620calcium hydroxide 2.00 2 lbs lbs0

ACCU-TAB WHITE CALCIUMHYPOCHLORITE

8001121 7778543calcium hypochlorite 100.00 30,250 lbs lbs174

PRESTOCHLOR CALCIUMHYPOCHLORIT GRANULES

71315982 7778543calcium hypochlorite 95.82 96 lbs lbs3

WHITEBLAST 9562calcium oxide 8.58 23,406 lbs lbs238

CARBON PITCH LIQUID 9170 86748carbazole 0.10 15,311 lbs lbs229

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 14

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

CARBON PITCH LIQUID N/A 86748carbazole 0.10 62,504 lbs lbs756

CALCINED FLUID PETROLEUMCOKE

9551 7440440carbon 99.00 8,146,298 lbs lbs50,470

CALCINED PETROLEUM COKE 9160 7440440carbon 99.00 234,670,646

lbs lbs1,549,002

CAST STEEL SHOT,LOW CARBONCAST STL SHOT

AMASTEEL 7440440carbon 0.15 177 lbs lbs2

FOUNDRY PIG IRON PIGIRONcarbon 4.50 86,769 lbs lbs489

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 7440440carbon 0.50 9 lbs lbs0

PALCO 808 8001010 7782425carbon 2.10 0 lbs lbs0

INNERSHIELD NS-3M ALL SIZES 70977913 1333864carbon black 0.50 24 lbs lbs0

KRYLON HIGH HEAT & RADIATORPAINT BLACK

70971593 1333864carbon black 2.00 0 lbs lbs0

KRYLON INT/EXT PAINT, GLOSSYBLACK 1601

70971650 1333864carbon black 0.50 0 lbs lbs0

CARBON DIOXIDE, GAS BOCCARBO 124389carbon dioxide 100.00 1,620 lbs lbs13

CONTACT CLEANER 2000 CLNR-2000 124389carbon dioxide 4.00 39 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 15

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

CRC 2-26 70508494 124389carbon dioxide 6.00 1 lbs lbs0

POWER LUBE MULTI-PURPLUBRICANT

70935002 124389carbon dioxide 10.00 125 lbs lbs1

SNAP STARTING FLUID 70437108 124389carbon dioxide 10.00 12 lbs lbs0

STARGOLD C-25 SHIELDING GASMIX

C-25 GAS 124389carbon dioxide 25.00 8,654 lbs lbs50

FLEETWELD 180 ELECTRODESAWS E6011

E6011 7439896carbon steel core wire 80.00 776 lbs lbs6

FLEETWELD 5P AWS E6010 LIN6010 7439896carbon steel core wire 85.00 510 lbs lbs5

JETWELD LH-70, E7018 LIN LH-70 7439896carbon steel core wire 60.00 3,738 lbs lbs20

LINCOLN 7018 AC ELECTRODE JET LH73 7439896carbon steel core wire 85.00 43 lbs lbs1

INNERSHIELD NS-3M ALL SIZES 70977913 7439896carbon steel tube 80.00 3,800 lbs lbs47

U-PRIME, UNIVERSAL PRIMER282,284,285

70971726 56235carbon tetrachloride 0.16 0 lbs lbs0

CAUSTIC POTASH, LIQUID, 30-60%

8002050 1310583caustic potash potassium hydroxide 45.00 18,666 lbs lbs144

PALCO 808 8001010 9004324cellulose 5.00 0 lbs lbs0

FLEETWELD 180 ELECTRODESAWS E6011

E6011 65996614cellulose and other carbohydrates 5.00 49 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 16

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

FLEETWELD 5P AWS E6010 LIN6010 65996614cellulose and other carbohydrates 5.00 30 lbs lbs0

JETWELD 3, AWS E7024 70977467 65996614cellulose and other carbohydrates 5.00 3 lbs lbs0

BEARING MOUNT/GRADE B 70934807 9004368cellulose ester 3.00 0 lbs lbs0

CLEAVER CAST,FURNACAST,HISTRGTH 28-LI..

CLEAVER 65997162cement, calcium aluminate 20.00 352 lbs lbs12

PHOXBOND PHOXBOND 65997162cement, calcium aluminate 20.00 44 lbs lbs1

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 36653824cetyl alcohol 5.00 2 lbs lbs0

REFRIGERANT 22 (HCFC-22) 70801048 75456chlorodifluoromethane (hcfc-22) 100.00 270 lbs lbs4

SBS-44 PROTECTIVE CREAM,WATER RESISTANT

70969795 88040chloroxylenol 0.10 0 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 88040chloroxylenol 1.00 0 lbs lbs0

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 7440473chromium 1.20 21 lbs lbs1

HI-ALLOY 500 WELDINGELECTRODE

500HIALLOY 7440473chromium 40.00 8 lbs lbs0

HOBART BROTHERS 811N2WELDINGWIRE

71238372 7440473chromium 3.00 113 lbs lbs1

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 17

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

METAL-COR 6L WELDING WIRE 1000004281 7440473chromium 20.00 6,336 lbs lbs37

PALCO 700 71344555 7440473chromium 40.00 20 lbs lbs1

DERBY 3000 70995692 1332587clay 13.00 1,496 lbs lbs14

FORM A GASKET #2 SEALANT GASKET #2clay 55.00 7 lbs lbs0

METAL-COR 6L WELDING WIRE 1000004281 7440484cobalt 1.00 317 lbs lbs2

SUPER RAM CP-50 9180 65996772coke 95.00 1,527,016 lbs lbs8,156

INNERSHIELD NS-3M ALL SIZES 70977913 66402684complex compounds 0.50 24 lbs lbs0

44 RESIN FLUX CORED SOLDER 70977327 7440508copper 10.00 1 lbs lbs0

ARCAIR AIR CARBON ARCELECTRODES

WELD ROD 7440508copper 30.00 7,107 lbs lbs50

C-5A ANTISEIZE ANTISEIZE 7440508copper 25.00 25 lbs lbs0

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 7440508copper 0.50 9 lbs lbs0

HOBART BROTHERS 811N2WELDINGWIRE

71238372 7440508copper 2.00 75 lbs lbs1

LENOX STERLING LEAD-FREE 70977319 7440508copper 5.00 0 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 18

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

METAL-COR 6L WELDING WIRE 1000004281 7440508copper 2.00 634 lbs lbs4

PALCO 450 PAL450 7440508copper 100.00 30 lbs lbs1

PALCO 808 8001010 7440508copper 2.50 0 lbs lbs0

MILBRO PASTE (F) 8015690 14464461cristobalite 100.00 21,600 lbs lbs248

MORCO FEATHERLITE 1600 MORCO160 14464461cristobalite 1.00 10 lbs lbs0

MORCOCAST 45-28 SF-0 8001720 14464461cristobalite 2.00 2,312 lbs lbs30

MORCOCAST HS-0 MORCOCAS 14464461cristobalite 1.00 794 lbs lbs8

MORCOSET 50, 50 FIRM & 50DIPPING

9569 14464461cristobalite 2.00 682 lbs lbs7

PIG REPAIR PUTTY PTY201,202,209,230

71002703 74808607crystal line silica 10.00 11 lbs lbs0

FORM A GASKET #1 SEALANT 70372438 14808607crystalline silica 1.00 0 lbs lbs0

HYDRATED LIME 8001691crystalline silica (quartz) 0.10 10,219 lbs lbs63

KAST-O-LITE 50-25 DS LITECAST 7789755crystalline silica (quartz) 5.00 3,280 lbs lbs24

OIL-DRI FLOOR ABSORBENT OIL-DRI 14808607crystalline silica as quartz 20.00 11,606 lbs lbs69

PORTERGUARD ALKYD METALPRIMER-WHITE 276

PORTR276 14808607crystalline silica-quartz 10.00 10 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 19

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

ADHESIVE/SEALANT 271 ADHESI 271 80159cumene hydroperoxide 3.00 0 lbs lbs0

BEARING MOUNT/GRADE B 70934807 80159cumene hydroperoxide 3.00 0 lbs lbs0

LOCTITE 242 THREADLOCKER LOC242 80159cumene hydroperoxide 5.00 0 lbs lbs0

ODC-FREE CLEANER &DEGREASER

70376028 5989275d-limonene 25.00 1 lbs lbs0

SBS-44 PROTECTIVE CREAM,WATER RESISTANT

70969795 2717160dea-stearate 5.00 9 lbs lbs0

CRC BATTERY CLEANER 8015660detergent 1.00 0 lbs lbs0

ELECTRICAL JOINT COMPOUNDNO. 2

CMPD #2detergent with fluoride 45.00 236 lbs lbs1

STEEL BLUE LAYOUT FLUID STEELBLUE 123422diacetone alcohol 5.00 1 lbs lbs0

CARBON PITCH LIQUID 9170 53703dibenz(a,h)anthracene 0.33 50,527 lbs lbs757

CARBON PITCH LIQUID N/A 53703dibenz(a,h)anthracene 0.33 206,264 lbs lbs2,495

CARBON PITCH LIQUID 9170 192654dibenzo(a,e)pyrene 0.60 91,868 lbs lbs1,376

CARBON PITCH LIQUID N/A 192654dibenzo(a,e)pyrene 0.60 375,026 lbs lbs4,537

CARBON PITCH LIQUID 9170 189640dibenzo(a,h)pyrene 0.98 150,051 lbs lbs2,247

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 20

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

CARBON PITCH LIQUID N/A 189640dibenzo(a,h)pyrene 0.93 581,290 lbs lbs7,032

CARBON PITCH LIQUID 9170 189559dibenzo(a,i)pyrene 0.51 78,088 lbs lbs1,169

CARBON PITCH LIQUID N/A 189559dibenzo(a,i)pyrene 0.51 318,772 lbs lbs3,856

DIESEL FUEL NO. 2 HSDIESEL 68476346diesel fuel no. 2 100.00 1,186,818 lbs lbs7,485

HOUGHTO-SAFE 620 8001120 100378diethylaminoethanol 1.00 10 lbs lbs0

CHEVRON SUPREMEANTIFREEZE COOLANT

70945621 111466diethylene glycol 5.00 108 lbs lbs2

HOUGHTO-SAFE 620 8001120 111466diethylene glycol 50.00 491 lbs lbs14

PIG REPAIR PUTTY PTY201,202,209,230

71002703 25068386diglycidylether of bisphenol-a 15.00 16 lbs lbs0

MOBILITH SHC 100 GREASE MOBILITH 122394diphenylamine 0.01 0 lbs lbs0

DOW 77 PART ASSEMBLY PASTE 70935010 33204761diphenylhexamethylcyclotetrasiloxane

0.10 0 lbs lbs0

CRYSTAL CLEAN 142 + MINERALSPIRITS

71236962 64742478distillates petroleum aliphatic 100.00 726 lbs lbs24

DIESEL FUEL NO. 2 HSDIESEL 64741599distillates, (petroleum) lt catalytic... 50.00 593,409 lbs lbs3,742

DIESEL FUEL NO. 2 HSDIESEL 64742809distillates, hydrodesulfurized, middle 100.00 1,186,818 lbs lbs7,485

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 21

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

CHEVRON SOLUBLE OIL B,CPS233703

71341440 64742525distillates, hydrotreated heavynaphthen

100.00 10,576 lbs lbs94

CHEVRON SOLUBLE OIL B,CPS233703

71341440 64742536distillates, hydrotreated lightnaphthen

100.00 10,576 lbs lbs94

DIESEL FUEL NO. 2 HSDIESEL 64741442distillates, straight run middle (gas oi 100.00 1,186,818 lbs lbs7,485

CALCINED PETROLEUM COKE 9160dust 0.50 1,185,205 lbs lbs7,823

PROPANE 71337737 74840ethane 6.00 4,630 lbs lbs116

FORM A GASKET #1 SEALANT 70372438 64175ethanol 30.00 1 lbs lbs0

STEEL BLUE LAYOUT FLUID STEELBLUE 64175ethanol 50.00 12 lbs lbs0

CHEVRON SOLUBLE OIL B,CPS233703

71341440 111762ethanol, 2-butoxy 2.00 212 lbs lbs2

YELLOW 77 WIRE PULLINGLUBRICANT

70947304 61791444ethoxylated tallow amine 1.00 0 lbs lbs0

MARATHON REGULAR UNLEADEDGASOLINE

71347120 64175ethyl alcohol 10.00 23,022 lbs lbs192

MARATHON REGULAR UNLEADEDGASOLINE

71347120 100414ethyl benzene 1.80 4,144 lbs lbs35

QUICK SET 404 INSTANTADHESIVE

QUICK 404 7085850ethyl cyanoacrylate 95.00 2 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 22

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

SNAP STARTING FLUID 70437108 60297ethyl ether 30.00 37 lbs lbs0

KRYLON 1501 INT/EXT GLOSSYWHITE

70971692 100414ethylbenzene 1.00 0 lbs lbs0

KRYLON 1701 INT./EXT. BRIGHTGOLD

70971676 100414ethylbenzene 3.00 0 lbs lbs0

KRYLON HIGH HEAT & RADIATORPAINT BLACK

70971593 100414ethylbenzene 0.40 0 lbs lbs0

KRYLON HIGH HEAT & RADIATORPAINT,ALUM.

70971585 100414ethylbenzene 2.00 3 lbs lbs0

KRYLON INT/EXT PAINT, BANNERRED 2108

70971635 100414ethylbenzene 2.00 2 lbs lbs0

KRYLON INT/EXT PAINT, GLOSSYBLACK 1601

70971650 100414ethylbenzene 2.00 2 lbs lbs0

KRYLON INT/EXT TRUE BLUE1910

70971643 100414ethylbenzene 1.00 1 lbs lbs0

KRYLON OSHA COLORS SAFETYPOP ORNG 2410

70971601 100414ethylbenzene 2.00 1 lbs lbs0

KRYLON OSHA COLORS SAFETYPURPLE 1929

70971619 100414ethylbenzene 2.00 1 lbs lbs0

KRYLON OSHA COLORS SAFETYYELLOW 1813

70971668 100414ethylbenzene 1.00 1 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 23

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

SPRAYON RED INSULATINGVARNISH

70947320 100414ethylbenzene 3.00 0 lbs lbs0

SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER

70971627 100414ethylbenzene 2.00 0 lbs lbs0

SW TOUGH COAT S00329MACHINERY BLUE GRAY

70971437 100414ethylbenzene 4.00 2 lbs lbs0

BTN COVE BASE CONSTRUCTIONADHESIVE

70997705 107211ethylene glycol 3.00 0 lbs lbs0

CHEVRON SUPREMEANTIFREEZE COOLANT

70945621 107211ethylene glycol 97.00 2,094 lbs lbs34

BAFCO FILM FREE GLASSCLEANER

GLASSCLN 111762ethylene glycol monobutyl ether 5.00 10 lbs lbs0

BOSS 310 GEN PURPOSE INDSILICONE SLNT

70997812 17689779ethyltriacetoxysilane 5.00 33 lbs lbs0

DOW CORNING 732 M/P SEALANT,WHITE

RUBR ADHE 17689779ethyltriacetoxysilane 2.00 2 lbs lbs0

SUPERFLEX BLU RTV SILICONEADHES SEALANT

70863477 17689779ethyltriacetoxysilane 5.00 5 lbs lbs0

PALCO 700 71344555 68476255feldspar 5.00 3 lbs lbs0

RC1114 RAM MIX 9183 63476255feldspar 5.00 3,550 lbs lbs28

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 24

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

MORCO FEATHERLITE 1600 MORCO1600ferric oxide 2.00 20 lbs lbs1

MORCOCAST 45-28 SF-0 8001720ferric oxide 1.00 1,156 lbs lbs15

MORCOCAST HS-0 MORCOCASferric oxide 3.50 2,778 lbs lbs28

MORCOSET 50, 50 FIRM & 50DIPPING

9569ferric oxide 1.50 511 lbs lbs5

KAO-TEX 1000 CLOTH 70995428 65997173fiberglass, filament 98.00 7,244 lbs lbs49

PPG QUICK DRY SPRAY ENML,55-B (302,...)

PPG 55-Bfilm formers, resins, and additives 20.00 11 lbs lbs0

CARBON PITCH LIQUID 9170 206440fluoranthene 1.40 214,359 lbs lbs3,210

CARBON PITCH LIQUID N/A 206440fluoranthene 1.40 875,060 lbs lbs10,586

CARBON PITCH LIQUID 9170 86737fluorene 0.09 13,780 lbs lbs206

INNERSHIELD NS-3M ALL SIZES 70977913 7789755fluorides 5.00 238 lbs lbs3

JETWELD LH-70, E7018 LIN LH-70 7789755fluorides 5.00 312 lbs lbs2

LINCOLN 7018 AC ELECTRODE JET LH73 7789755fluorides 1.00 1 lbs lbs0

HOBART BROTHERS 811N2WELDING

71238372 7789755fluorospar 5.00 188 lbs lbs2

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 25

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

METAL-COR 6L WELDING WIRE 1000004281 7789755fluorspar 10.00 3,168 lbs lbs18

PLIOBOND 30 70934757 50000formaldehyde 1.00 0 lbs lbs0

SBS-44 PROTECTIVE CREAM,WATER RESISTANT

70969795fragrance 0.10 0 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803fragrance 0.10 0 lbs lbs0

HAWTHORN BOND CLAY.. 8001740 1344281free aluminum oxide 70.00 14,700 lbs lbs315

HAWTHORN BOND CLAY.. 8001740 14464461free cristobalite 25.00 5,250 lbs lbs113

HAWTHORN BOND CLAY.. 8001740 14808607free quartz 25.00 5,250 lbs lbs113

HAWTHORN BOND CLAY.. 8001740 13463677free titanium dioxide 3.50 735 lbs lbs16

CAST OFF 8001457 68476302fuel oil #2 60.00 484 lbs lbs16

PIG REPAIR PUTTY PTY201,202,209,230

71002703 60676860fused silica 20.00 22 lbs lbs0

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220 7782425graphite 7.00 270 lbs lbs2

C-5A ANTISEIZE ANTISEIZE 7782425graphite 20.00 20 lbs lbs0

CRC DRY GRAPHITE LUBE GRAPHITE 7782425graphite 2.00 1 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 26

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

FLEETWELD 180 ELECTRODESAWS E6011

E6011 7782425graphite 0.50 5 lbs lbs0

FLEETWELD 5P AWS E6010 LIN6010 7782425graphite 0.50 3 lbs lbs0

NATURAL GRAPHITE 8001571 7782425graphite 100.00 5,000 lbs lbs167

ARCAIR AIR CARBON ARCELECTRODES

WELD ROD 7782425graphite, natural 90.00 21,321 lbs lbs150

ARCAIR AIR CARBON ARCELECTRODES

WELD ROD 7440440graphite, synthetic 90.00 21,321 lbs lbs150

44 RESIN FLUX CORED SOLDER 70977327 8050097gum rosin 10.00 1 lbs lbs0

CRC DRY GRAPHITE LUBE GRAPHITE 142825heptane 49.00 26 lbs lbs0

GOLDEN BELT DRESSINGAEROSOL

70997135 142825heptane 7.00 6 lbs lbs0

SNAP STARTING FLUID 70437108 142825heptane 65.00 79 lbs lbs1

BLEND 2266 70975511 110543hexane 100.00 2 lbs lbs0

MARATHON REGULAR UNLEADEDGASOLINE

71347120 110543hexane 2.70 6,216 lbs lbs52

SW ENGINE PAINTS 1612UNIVERSAL BLACK

N/A 110543hexane 13.00 10 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 27

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

CARBON PITCH LIQUID N/A 65996932high temp coal tar pitch 100.00 62,504,276 lbs lbs756,149

CARBON PITCH LIQUID 9170 65996932high temperature coal tar pitch 100.00 15,311,332 lbs lbs229,289

CHEVRON RANDO HD HYDROLICOIL

71341430highly refined mineral oil c15-c50 100.00 2,394 lbs lbs62

FIBERFRAX QF CEMENTS CEMNTQF 12199370hydrated magnesium aluminumsilicate

3.00 23 lbs lbs0

CHEVRON HEATING FUEL NO. 1 8000132 64742809hydrodesulfurized middle distillate 100.00 105,395 lbs lbs1,212

HYDROGEN (25%-45%) IN ARGON 71319598 1333740hydrogen 45.00 1,981 lbs lbs38

ELECTRICAL JOINT COMPOUNDNO. 2

CMPD #2 7664393hydrogen fluoride 6.00 31 lbs lbs0

QUICK SET 404 INSTANTADHESIVE

QUICK 404 123319hydroquinone 1.00 0 lbs lbs0

ODC-FREE CLEANER &DEGREASER

70376028 64742489hydrotreated heavy naphtha 85.00 4 lbs lbs0

C-5A ANTISEIZE ANTISEIZE 64742525hydrotreated petroleum distillates 25.00 25 lbs lbs0

CHEVRON HEATING FUEL NO. 1 8000132 64742810hydrotreated sulfurized kerosene 100.00 105,395 lbs lbs1,212

DOW 77 PART ASSEMBLY PASTE 70935010 7620771hydroxy lithium stearate 4.00 0 lbs lbs0

DURALUM 70997788impurities 1.00 126 lbs lbs2

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 28

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

CARBON PITCH LIQUID 9170 193395indeno(1,2,3-cd)pyrene 1.37 209,765 lbs lbs3,141

CARBON PITCH LIQUID N/A 193395indeno(1,2,3-cd)pyrene 1.37 856,309 lbs lbs10,359

WELDERS BLACK MAGIC 8001890inert ingredients 15.00 3 lbs lbs0

CRC 2-26 70508494inhibited paraffin oil 35.00 5 lbs lbs0

POWER LUBE MULTI-PURPLUBRICANT

70935002inhibited paraffinic oil 30.00 376 lbs lbs2

CAST STEEL SHOT,LOW CARBONCAST STL SHOT

AMASTEEL 1309371iron 100.00 118,000 lbs lbs1,611

FLEETWELD 180 ELECTRODESAWS E6011

E6011 7439896iron 5.00 49 lbs lbs0

FLEETWELD 5P AWS E6010 LIN6010 7439896iron 5.00 30 lbs lbs0

FOUNDRY PIG IRON PIGIRONiron 94.25 1,817,325 lbs lbs10,241

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 7439896iron 100.00 1,712 lbs lbs52

HI-IMPACT ELECTRODE MANGTROD 7439896iron 100.00 150 lbs lbs5

HOBART BROTHERS 811N2WELDINGWIRE

71238372 7439896iron 95.00 3,574 lbs lbs36

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 29

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

INNERSHIELD NS-3M ALL SIZES 70977913 7439896iron 5.00 238 lbs lbs3

JETWELD 3, AWS E7024 70977467 7439896iron 30.00 15 lbs lbs1

JETWELD LH-70, E7018 LIN LH-70 7439896iron 15.00 935 lbs lbs5

LINCOLN 7018 AC ELECTRODE JET LH73 7439896iron 15.00 8 lbs lbs0

METAL-COR 6L WELDING WIRE 1000004281 7439896iron 98.00 31,046 lbs lbs180

PALCO 450 PAL450 7439896iron 5.00 2 lbs lbs0

PALCO 700 71344555 7439896iron 60.00 30 lbs lbs1

PALCO 808 8001010 7439896iron 6.00 0 lbs lbs0

SILICON METAL SILCN METL 7439896iron 1.50 135 lbs lbs2

DURALUM 70997788 1309371iron oxide 1.50 189 lbs lbs4

HOBART BROTHERS 811N2WELDINGWIRE

71238372 1309371iron oxide 2.00 75 lbs lbs1

METAL-COR 6L WELDING WIRE 1000004281 1309371iron oxide 2.00 634 lbs lbs4

WHITEBLAST 9562iron oxide 0.36 971 lbs lbs10

FLEETWELD 180 ELECTRODESAWS E6011

E6011 65996749iron oxides 0.50 5 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 30

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

FLEETWELD 5P AWS E6010 LIN6010 65996749iron oxides (as fe) 0.50 3 lbs lbs0

AEROLEX PLUS AEROSOL AEROLEX 75285isobutane 100.00 82 lbs lbs1

GOLDEN BELT DRESSINGAEROSOL

70997135 75285isobutane 30.00 25 lbs lbs0

PPG QUICK DRY SPRAY ENML,55-B (302,...)

PPG 55-B 75285isobutane 15.00 8 lbs lbs0

WELDERS BLACK MAGIC 8001890 75285isobutane 5.00 1 lbs lbs0

SW ENGINE PAINTS 1612UNIVERSAL BLACK

N/A 107835isohexane isomers 8.00 6 lbs lbs0

AEROLEX PLUS AEROSOL AEROLEX 67630isopropanol 100.00 82 lbs lbs1

CRC DRY GRAPHITE LUBE GRAPHITE 67630isopropanol 28.00 15 lbs lbs0

STEEL BLUE LAYOUT FLUID STEELBLUE 67630isopropanol 5.00 1 lbs lbs0

STEEL INK BLUE (AEROSOL) 70968904 67630isopropanol 8.00 0 lbs lbs0

AVIATION FORM-A-GASKET #3 AVIATION#3 67630isopropyl alcohol 25.00 2 lbs lbs0

BAFCO FILM FREE GLASSCLEANER

GLASSCLN 67630isopropyl alcohol 5.00 10 lbs lbs0

FORM A GASKET #2 SEALANT GASKET #2isopropyl alcohol 15.00 2 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 31

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

FORM A GASKET #1 SEALANT 70372438 1332587kaolin 60.00 2 lbs lbs0

SBS-44 PROTECTIVE CREAM,WATER RESISTANT

70969795 1332587kaolin 25.00 47 lbs lbs0

RC1114 RAM MIX 9183 1332587kaolin (clay) 10.00 7,099 lbs lbs55

CHEVRON HEATING FUEL NO. 1 8000132 8008206kerosene 100.00 105,395 lbs lbs1,212

DIESEL FUEL NO. 2 HSDIESEL 8008206kerosine 25.00 296,704 lbs lbs1,871

DIESEL FUEL NO. 2 HSDIESEL 64742810kerosine, hydrosulfurized 25.00 296,704 lbs lbs1,871

44 RESIN FLUX CORED SOLDER 70977327 7439921lead 100.00 8 lbs lbs0

ACID FLUX CORED SOLDER ACIDFLUX 7439921lead 100.00 9 lbs lbs0

FLEETWELD 5P AWS E6010 LIN6010 1317653limestone and/or calcium carbonate 0.50 3 lbs lbs0

JETWELD LH-70, E7018 LIN LH-70 1317653limestone and/or calcium carbonate 10.00 623 lbs lbs3

LINCOLN 7018 AC ELECTRODE JET LH73 1317653limestone and/or calcium carbonate 5.00 3 lbs lbs0

CRAZY CLEAN ALL PURPOSECLEANER

N/A 68476857liquefied petroleum gas 5.00 0 lbs lbs0

CRC BATTERY CLEANER 8015660 68479869liquefied petroleum gas 8.00 0 lbs lbs0

PALCO 700 71344555 12068761lithium aluminum silicate 5.00 3 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 32

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

LITHIUM CARBONATE 9650 554132lithium carbonate 100.00 760,900 lbs lbs5,365

LINCOLN 7018 AC ELECTRODE JET LH73 554132lithium compounds 0.50 0 lbs lbs0

HOBART BROTHERS 811N2WELDINGWIRE

71238372 7789244lithium fluoride 2.00 75 lbs lbs1

METAL-COR 6L WELDING WIRE 1000004281 7789244lithium fluoride 2.00 634 lbs lbs4

MORCO FEATHERLITE 1600 MORCO1600 1309484magnesia 2.00 20 lbs lbs1

MORCOCAST HS-0 MORCOCAS 1309484magnesia 1.00 794 lbs lbs8

MORCOSET 50, 50 FIRM & 50 9569 1309484magnesia 0.50 170 lbs lbs2

FLEETWELD 5P AWS E6010 LIN6010 1309484magnesite 1.00 6 lbs lbs0

INNERSHIELD NS-3M ALL SIZES 70977913 1309484magnesite 5.00 238 lbs lbs3

METAL-COR 6L WELDING WIRE 1000004281 7439954magnesium 3.00 950 lbs lbs6

PRESTOCHLOR CALCIUMHYPOCHLORIT GRANULES

71315982 7439954magnesium 0.18 0 lbs lbs0

INNERSHIELD NS-3M ALL SIZES 70977913 7439954magnesium compounds 0.50 24 lbs lbs0

METAL-COR 6L WELDING WIRE 1000004281 1309484magnesium oxide 3.00 950 lbs lbs6

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 33

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

WHITEBLAST 9562magnesium oxide 4.00 10,912 lbs lbs111

PIG REPAIR PUTTY PTY201,202,209,230

71002703 14807966magnesium silicate 30.00 32 lbs lbs0

STEEL BLUE LAYOUT FLUID STEELBLUE 569642malachite green 1.00 0 lbs lbs0

CAST STEEL SHOT,LOW CARBONCAST STL SHOT

AMASTEEL 7439965manganese 1.50 1,770 lbs lbs24

FOUNDRY PIG IRON PIGIRONmanganese 1.00 19,282 lbs lbs109

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 7439965manganese 2.00 34 lbs lbs1

HI-ALLOY 500 WELDINGELECTRODE

500HIALLOY 7439965manganese 0.10 0 lbs lbs0

HI-IMPACT ELECTRODE MANGTROD 7439965manganese 100.00 150 lbs lbs5

HOBART BROTHERS 811N2WELDINGWIRE

71238372 7439965manganese 4.00 150 lbs lbs2

METAL-COR 6L WELDING WIRE 1000004281 7439965manganese 4.50 1,426 lbs lbs8

PALCO 450 PAL450 7439965manganese 13.00 4 lbs lbs0

PALCO 700 71344555 7439965manganese 1.00 1 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 34

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

PALCO 808 8001010 7439965manganese 5.00 0 lbs lbs0

JETWELD 3, AWS E7024 70977467 7439965manganese and/or manganesealloys

5.00 3 lbs lbs0

FLEETWELD 180 ELECTRODESAWS E6011

E6011 7439965manganese and/or manganesealloys& compo

0.50 5 lbs lbs0

LINCOLN 7018 AC ELECTRODE JET LH73 7439965manganese and/or manganesealloys& compo

5.00 3 lbs lbs0

FLEETWELD 5P AWS E6010 LIN6010 7439965manganese compounds 1.00 6 lbs lbs0

INNERSHIELD NS-3M ALL SIZES 70977913 7439965manganese compounds 0.50 24 lbs lbs0

LIQUID PAPER CORRECTIONFLUID LPCF-19-1

CORRECTIOmasking fragrance 100.00 3 lbs lbs0

PIG REPAIR PUTTY PTY201,202,209,230

71002703mercaptan terminated polyether 10.00 11 lbs lbs0

FLEETWELD 180 ELECTRODESAWS E6011

E6011 563713metallic carbonates 0.50 5 lbs lbs0

P-10 GAS MIXTURE 70608253 74828methane 10.00 3 lbs lbs0

FREON 12 FREON12 75718methane, dichlorodifluoro-(""freon""12)

100.00 30 lbs lbs1

FREON 12 FREON12 75718methane, dichlorodifluoro-("freon"12) 100.00 30 lbs lbs1

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 35

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

FORM A GASKET #1 SEALANT 70372438 67561methanol 1.00 0 lbs lbs0

SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER

70971627 108856methoxy-2-propanol acetate 7.00 0 lbs lbs0

KRYLON 1501 INT/EXT GLOSSYWHITE

70971692 78933methyl ethyl ketone 10.00 2 lbs lbs0

KRYLON INT/EXT PAINT, BANNERRED 2108

70971635 78933methyl ethyl ketone 9.00 11 lbs lbs0

KRYLON INT/EXT PAINT, GLOSSYBLACK 1601

70971650 78933methyl ethyl ketone 13.00 12 lbs lbs0

KRYLON INT/EXT TRUE BLUE 1910 70971643 78933methyl ethyl ketone 8.00 10 lbs lbs0

KRYLON OSHA COLORS SAFETYPOP ORNG 2410

70971601 78933methyl ethyl ketone 9.00 2 lbs lbs0

KRYLON OSHA COLORS SAFETYPURPLE 1929

70971619 78933methyl ethyl ketone 8.00 4 lbs lbs0

KRYLON OSHA COLORS SAFETYYELLOW 1813

70971668 78933methyl ethyl ketone 9.00 13 lbs lbs0

PLIOBOND 30 70934757 78933methyl ethyl ketone 69.00 11 lbs lbs0

PPG QUICK DRY SPRAY ENML,55-B (302,...)

PPG 55-B 78933methyl ethyl ketone 15.00 8 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 36

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER

70971627 78933methyl ethyl ketone 8.00 0 lbs lbs0

KRYLON INT/EXT PAINT, BANNERRED 2108

70971635 108101methyl isobutyl ketone 2.00 2 lbs lbs0

KRYLON INT/EXT TRUE BLUE 1910 70971643 108101methyl isobutyl ketone 3.00 4 lbs lbs0

KRYLON OSHA COLORS SAFETYYELLOW 1813

70971668 108101methyl isobutyl ketone 5.00 7 lbs lbs0

SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER

70971627 108101methyl isobutyl ketone 1.00 0 lbs lbs0

STEEL BLUE LAYOUT FLUID STEELBLUE 8004873methyl violet xxa 1.00 0 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 9004675methylcellulose 1.00 0 lbs lbs0

GOLDEN BELT DRESSINGAEROSOL

70997135 75092methylene chloride 60.00 50 lbs lbs0

SBS-44 PROTECTIVE CREAM,WATER RESISTANT

70969795 99763methylparaben 1.00 2 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 99763methylparaben 1.00 0 lbs lbs0

BOSS 310 GEN PURPOSE INDSILICONE SLNT

70997812 4253343methyltriacetoxysilane 5.00 33 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 37

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

DOW CORNING 732 M/P SEALANT,WHITE

RUBR ADHE 4253343methyltriacetoxysilane 2.00 2 lbs lbs0

SUPERFLEX BLU RTV SILICONEADHES SEALANT

70863477 4253343methyltriacetoxysilane 5.00 5 lbs lbs0

ELECTRICAL JOINT COMPOUNDNO. 2

CMPD #2microcrystalline wax 50.00 262 lbs lbs2

FLEETWELD 5P AWS E6010 LIN6010 1332587mineral silicates 0.50 3 lbs lbs0

INNERSHIELD NS-3M ALL SIZES 70977913 1332587mineral silicates 0.50 24 lbs lbs0

JETWELD 3, AWS E7024 70977467 1332587mineral silicates 5.00 3 lbs lbs0

JETWELD LH-70, E7018 LIN LH-70 7439965mineral silicates 5.00 312 lbs lbs2

LINCOLN 7018 AC ELECTRODE JET LH73 1332587mineral silicates 5.00 3 lbs lbs0

BTN COVE BASE CONSTRUCTIONADHESIVE

70997705 64742887mineral spirits 5.00 1 lbs lbs0

KRYLON HIGH HEAT & RADIATORPAINT,ALUM.

70971585 64742887mineral spirits 1.00 2 lbs lbs0

LIQUID PAPER CORRECTIONFLUID LPCF-19-1

CORRECTIO 64742489mineral spirits 100.00 3 lbs lbs0

PORTERGUARD ALKYD METALPRIMER-WHITE 276

PORTR276 8052413mineral spirits 30.00 29 lbs lbs1

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 38

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

U-PRIME, UNIVERSAL PRIMER282,284,285

70971726 64742887mineral spirits 10.00 4 lbs lbs0

FORM A GASKET #2 SEALANT GASKET #2modified natural resins 35.00 4 lbs lbs0

HOBART BROTHERS 811N2WELDINGWIRE

71238372 7439987molybdenum 2.00 75 lbs lbs1

METAL-COR 6L WELDING WIRE 1000004281 7439987molybdenum 2.00 634 lbs lbs4

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220 1317335molybdenum disulfide 7.00 270 lbs lbs2

AEROLEX PLUS AEROSOL AEROLEX 1417335molybdenum disulfide 100.00 82 lbs lbs1

DOW 77 PART ASSEMBLY PASTE 70935010 1317335molybdenum disulfide 66.00 1 lbs lbs0

MOLY E.P. SEMI-SYNTHETICGREASE #2, 274

GREASE #2 1317335molybdenum disulfide 5.00 64 lbs lbs1

LIQUID PAPER CORRECTIONFLUID LPCF-19-1

CORRECTIO 57067mustard oil 100.00 3 lbs lbs0

STEEL INK BLUE (AEROSOL) 70968904 123864n butyl acetate 11.00 0 lbs lbs0

ADHESIVE/SEALANT 271 ADHESI 271 613489n,n-dialkyltoluidines 1.00 0 lbs lbs0

AEROLEX PLUS AEROSOL AEROLEX 106978n-butane 100.00 82 lbs lbs1

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 39

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

STEEL BLUE LAYOUT FLUID STEELBLUE 106978n-butane 15.00 4 lbs lbs0

U-PRIME, UNIVERSAL PRIMER282,284,285

70971726 123864n-butyl acetate 8.00 3 lbs lbs0

PROPANE 71337737n-pentane 2.50 1,929 lbs lbs48

STEEL BLUE LAYOUT FLUID STEELBLUE 109604n-propyl acetate 5.00 1 lbs lbs0

BEARING MOUNT/GRADE B 70934807 613489n.n-dialkyltoluidines 1.00 0 lbs lbs0

CHEVRON HEATING FUEL NO. 1 8000132 91203naphthalene 3.00 3,162 lbs lbs36

DIESEL FUEL NO. 2 HSDIESEL 91203naphthalene 0.20 2,374 lbs lbs15

MARATHON REGULAR UNLEADEDGASOLINE

71347120 91203naphthalene 0.50 1,151 lbs lbs10

YELLOW 77 WIRE PULLINGLUBRICANT

70947304 64742536naphthenic mineral oil 3.00 1 lbs lbs0

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 7440020nickel 1.50 26 lbs lbs1

HI-ALLOY 500 WELDINGELECTRODE

500HIALLOY 7440020nickel 15.00 3 lbs lbs0

HI-IMPACT ELECTRODE MANGTROD 7440020nickel 100.00 150 lbs lbs5

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 40

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

HOBART BROTHERS 811N2WELDING

71238372 7440020nickel 4.00 150 lbs lbs2

METAL-COR 6L WELDING WIRE 1000004281 7440020nickel 4.00 1,267 lbs lbs7

PALCO 450 PAL450 7440020nickel 5.00 2 lbs lbs0

PALCO 700 71344555 7440020nickel 13.00 7 lbs lbs0

PALCO 808 8001010 7440020nickel 100.00 5 lbs lbs0

PLIOBOND 30 70934757nitrile rubber 18.00 3 lbs lbs0

STEEL BLUE LAYOUT FLUID STEELBLUE 9004700nitrocellulose 5.00 1 lbs lbs0

NITROGEN NITROGN 7727379nitrogen 100.00 5,358 lbs lbs71

NITROGEN, COMPRESSED GAS 71305701 7727379nitrogen 99.00 1,695 lbs lbs15

KAST-O-LITE 50-25 DS LITECAST 1344281non-fibrous alumina 30.00 19,677 lbs lbs145

CHEVRON CLARITY HYDRA-OIL/AWISO32,46,68

HYDRAULICnon-hazardous 100.00 11,357 lbs lbs117

QUINTOLUBRIC 822-220 70906964non-hazardous components 100.00 6,616 lbs lbs101

KROIL KROILnon-hazardous proprietary mixture 20.00 1,103 lbs lbs7

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 41

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

WELDERS BLACK MAGIC 8001890 106978norbutane 5.00 1 lbs lbs0

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220olefin copolymer addititve 18.00 695 lbs lbs5

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220 68953582organophilic clay 6.00 232 lbs lbs2

NITROGEN, COMPRESSED GAS 71305701other inerts, <1.0% oxygen, traceamount

1.00 17 lbs lbs0

WHITEBLAST 9562other oxides 0.25 682 lbs lbs7

M-5, 0-5, SIGMA-5 71322584 7782447oxygen 5.00 10 lbs lbs0

OXYGEN OXGN PRAX 7782447oxygen 100.00 22,480 lbs lbs125

YELLOW 77 WIRE PULLINGLUBRICANT

70947304 64742434paraffin wax 5.00 2 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 61790816peg-75 lanoline 1.00 0 lbs lbs0

YELLOW 77 WIRE PULLINGLUBRICANT

70947304 25265718perfume 0.10 0 lbs lbs0

OATEY #5 PASTE FLUX SOLDRPAST 8009038petrolatum 100.00 3 lbs lbs0

SBS-44 PROTECTIVE CREAM,WATER RESISTANT

70969795 8009038petrolatum 25.00 47 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 42

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

YELLOW 77 WIRE PULLINGLUBRICANT

70947304 8009038petrolatum 3.00 1 lbs lbs0

C-5A ANTISEIZE ANTISEIZE 64742183petroleum distillate 15.00 15 lbs lbs0

CRC 2-26 70508494 64742489petroleum distillate 70.00 9 lbs lbs0

POWER LUBE MULTI-PURPLUBRICANT

70935002 64742478petroleum distillate 80.00 1,004 lbs lbs5

KROIL KROIL 64742887petroleum distillates 50.00 2,758 lbs lbs17

CAST OFF 8001457 64742525petroleum distillates hydrotreatedheavy

40.00 323 lbs lbs11

CAST OFF 8001457 64742536petroleum distillates hydrotreatedlight

40.00 323 lbs lbs11

LIQUID WRENCH SUPERPENETRANT (POUR)

LIQ. 54742069petroleum mineral oil 11.00 3 lbs lbs0

KROIL KROIL 64742478petroleum naphtha 50.00 2,758 lbs lbs17

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220 64741566petroleum oils 44.00 1,698 lbs lbs12

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220 64742161petroleum oils(1) 44.00 1,698 lbs lbs12

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220 64742014petroleum oils(2) 44.00 1,698 lbs lbs12

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 43

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220 64742575petroleum oils(3) 44.00 1,698 lbs lbs12

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220 64742627petroleum oils(4) 47.00 1,814 lbs lbs12

KROIL KROIL 64742956petroleum solvent 10.00 552 lbs lbs3

CARBON PITCH LIQUID 9170 85018phenanthrene 0.61 93,399 lbs lbs1,399

PLIOBOND 30 70934757 108952phenol 1.00 0 lbs lbs0

DOW 77 PART ASSEMBLY PASTE 70935010 10448096phenylheptamethyl cyclotetrasiloxane 0.10 0 lbs lbs0

UNI-PLAS 85ESS 70995683 7664382phosphoric acid 100.00 76,176 lbs lbs436

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 7723140phosphorous 0.05 1 lbs lbs0

FOUNDRY PIG IRON PIGIRONphosphorus 0.10 1,928 lbs lbs11

PPG QUICK DRY SPRAY ENML,55-B (302,...)

PPG 55-Bpigments 15.00 8 lbs lbs0

SUPER RAM CP-50 9180 65996932pitch,coal tar 30.00 482,216 lbs lbs2,576

STEEL INK BLUE (AEROSOL) 70968904 108636pm acetate 7.00 0 lbs lbs0

QUICK SET 404 INSTANTADHESIVE

QUICK 404 9011147poly (methyl methacrylate) 10.00 0 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 44

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

SUPERFLEX BLU RTV SILICONEADHES SEALANT

70863477 63148629poly(dimethylsiloxane), dimethyl 30.00 31 lbs lbs0

SUPERFLEX BLU RTV SILICONEADHES SEALANT

70863477 70131678poly(dimethylsiloxane),hydroxyterminate

80.00 81 lbs lbs1

#322 BLACK BEAUTY OPEN GEARLUBE 200 MED

71341220 68037014polyalphaolefin synthetic base fluid 20.00 772 lbs lbs5

YELLOW 77 WIRE PULLINGLUBRICANT

70947304 9005087polyethylene glycol ester 4.00 1 lbs lbs0

ADHESIVE/SEALANT 271 ADHESI 271 25852475polyglycol dimethacrylate 70.00 0 lbs lbs0

BEARING MOUNT/GRADE B 70934807 25852475polyglycol dimethacrylate 80.00 1 lbs lbs0

LOCTITE 242 THREADLOCKER LOC242 25852475polyglycol dimethacrylate 100.00 7 lbs lbs0

BEARING MOUNT/GRADE B 70934807 18268707polyglycol dioctanoate 15.00 0 lbs lbs0

LOCTITE 242 THREADLOCKER LOC242 9004960polyglycol oleate 30.00 2 lbs lbs0

CAUSTIC POTASH, LIQUID, 30-60% 8002050 584087potassium carbonate potash 2.00 830 lbs lbs6

PALCO 450 PAL450 13775525potassium cryolite 5.00 2 lbs lbs0

HI-ALLOY 500 WELDINGELECTRODE

500HIALLOY 7789233potassium fluoride 12.00 2 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 45

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

STEAM CLEANER 70935358 1310583potassium hydroxide 5.00 26 lbs lbs1

PALCO 700 71344555 6487485potassium oxalate 1.50 1 lbs lbs0

WHITEBLAST 9562potassium oxide 0.40 1,091 lbs lbs11

PALCO 700 71344555 1312761potassium silicate 5.00 3 lbs lbs0

PALCO 808 8001010 1312761potassium silicate 4.00 0 lbs lbs0

AEROLEX PLUS AEROSOL AEROLEX 74986propane 100.00 82 lbs lbs1

CRC DRY GRAPHITE LUBE GRAPHITE 74986propane 20.00 10 lbs lbs0

GOLDEN BELT DRESSINGAEROSOL

70997135 74986propane 30.00 25 lbs lbs0

KRYLON 1501 INT/EXT GLOSSYWHITE

70971692 74986propane 14.00 3 lbs lbs0

KRYLON 1701 INT./EXT. BRIGHTGOLD

70971676 74986propane 16.00 0 lbs lbs0

KRYLON HIGH HEAT & RADIATORPAINT BLACK

70971593 74986propane 18.00 4 lbs lbs0

KRYLON HIGH HEAT & RADIATORPAINT,ALUM.

70971585 74986propane 18.00 28 lbs lbs0

KRYLON INT/EXT PAINT, BANNERRED 2108

70971635 74986propane 14.00 17 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 46

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

KRYLON INT/EXT PAINT, GLOSSYBLACK 1601

70971650 74986propane 14.00 13 lbs lbs0

KRYLON INT/EXT TRUE BLUE 1910 70971643 74986propane 14.00 18 lbs lbs0

KRYLON OSHA COLORS SAFETYPOP ORNG 2410

70971601 74986propane 15.00 4 lbs lbs0

KRYLON OSHA COLORS SAFETYPURPLE 1929

70971619 74986propane 14.00 6 lbs lbs0

KRYLON OSHA COLORS SAFETYYELLOW 1813

70971668 74986propane 14.00 19 lbs lbs0

PPG QUICK DRY SPRAY ENML,55-B (302,...)

PPG 55-B 74986propane 15.00 8 lbs lbs0

PROPANE 71337737 74986propane 100.00 77,167 lbs lbs1,934

SPRAYON RED INSULATINGVARNISH

70947320 74986propane 14.00 1 lbs lbs0

STEEL BLUE LAYOUT FLUID STEELBLUE 74986propane 15.00 4 lbs lbs0

STEEL INK BLUE (AEROSOL) 70968904 74986propane 19.00 0 lbs lbs0

SW ENGINE PAINTS 1612UNIVERSAL BLACK

N/A 74986propane 18.00 14 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 47

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER

70971627 74986propane 14.00 1 lbs lbs0

SW TOUGH COAT S00329MACHINERY BLUE GRAY

70971437 74986propane 14.00 8 lbs lbs0

WELDERS BLACK MAGIC 8001890 74986propane 15.00 3 lbs lbs0

44 RESIN FLUX CORED SOLDER 70977327proprietary 5.00 0 lbs lbs0

PROPANE 71337737 115071propylene 20.00 15,433 lbs lbs387

CER-WOOL MOLDABLE 9561 57556propylene glycol 10.00 413 lbs lbs14

LOCTITE 242 THREADLOCKER LOC242 57556propylene glycol 5.00 0 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 57556propylene glycol 5.00 2 lbs lbs0

SBS-44 PROTECTIVE CREAM,WATER RESISTANT

70969795 94133propylparaben 0.10 0 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 94133propylparaben 1.00 0 lbs lbs0

CARBON PITCH LIQUID 9170 129000pyrene 1.26 192,923 lbs lbs2,889

CARBON PITCH LIQUID N/A 129000pyrene 1.26 787,554 lbs lbs9,527

DERBY 3000 70995692 14808607quartz 3.00 345 lbs lbs3

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 48

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

JETWELD 3, AWS E7024 70977467 14808607quartz 5.00 3 lbs lbs0

LC1207 SAINT GOBAIN WETSICARB MORTAR

LC1207 14808607quartz 5.00 4,295 lbs lbs28

MILBRO PASTE (F) 8015690 14808607quartz 100.00 21,600 lbs lbs248

MORCO FEATHERLITE 1600 MORCO1600 148086070quartz 1.00 10 lbs lbs0

MORCOCAST 45-28 SF-0 8001720 148086070quartz 5.00 5,779 lbs lbs75

MORCOCAST HS-0 MORCOCAS 148086070quartz 2.00 1,587 lbs lbs16

MORCOSET 50, 50 FIRM & 50DIPPING

9569 148086070quartz 0.50 170 lbs lbs2

CRAZY CLEAN ALL PURPOSECLEANER

N/A 5197808quaternary ammonium chloride 0.50 0 lbs lbs0

THERMINOL 66 HEAT TRANSFERFLUID

70995121 68956741quaterphenyls and higherpolyphenyls

18.00 1,385 lbs lbs20

CER-WOOL MOLDABLE 9561 142844006refractories fibers aluminosilicate 55.00 2,270 lbs lbs76

CERAFIBER KAOWOOL PYRO-BLOC

KAOWOOLF 142844006refractory ceramic fiber 100.00 11,404 lbs lbs70

LIQUID PAPER CORRECTIONFLUID LPCF-19-1

CORRECTIOresin, dispersant, colorant(s) 100.00 3 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 49

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

OIL-DRI FLOOR ABSORBENT OIL-DRIrespirable crystalline silica 0.10 58 lbs lbs0

AVIATION FORM-A-GASKET #3 AVIATION#3 8050097rosin 25.00 2 lbs lbs0

FORM A GASKET #1 SEALANT 70372438 8050097rosin 30.00 1 lbs lbs0

ADHESIVE/SEALANT 271 ADHESI 271 81072saccharin 5.00 0 lbs lbs0

BEARING MOUNT/GRADE B 70934807 81072saccharin 3.00 0 lbs lbs0

LOCTITE 242 THREADLOCKER LOC242 81072saccharin 5.00 0 lbs lbs0

MARATHON REGULAR UNLEADEDGASOLINE

71347120saturated hydrocarbons 77.00 177,272 lbs lbs1,477

LENOX STERLING LEAD-FREESOLDER

70977319 7782492selenium 0.20 0 lbs lbs0

KROIL KROIL 64742525severely hydrotreated pretroleumdistill

50.00 2,758 lbs lbs17

HOBART BROTHERS 811N2WELDINGWIRE

71238372 14808607silica 2.00 75 lbs lbs1

METAL-COR 6L WELDING WIRE 1000004281 14808607silica 2.00 634 lbs lbs4

NATURAL GRAPHITE 8001571 14808607silica 100.00 5,000 lbs lbs167

FIBERFRAX QF CEMENTS CEMNTQF 7631869silica (amorphous) 15.00 115 lbs lbs1

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 50

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

DRI-VIBE (ALL VARIETIES) DRIVIBE 14808607silica (quartz) 100.00 63,789 lbs lbs476

CER-WOOL MOLDABLE 9561 7631869silica amorphous 30.00 1,238 lbs lbs41

LOCTITE 242 THREADLOCKER LOC242 112945525silica amorphous fumed crystallinefree

5.00 0 lbs lbs0

UNI-PLAS 85ESS 70995683 14808607silica crystalline (quartz) 100.00 76,176 lbs lbs436

DOW CORNING 732 M/P SEALANT,WHITE

RUBR ADHE 7631869silica, amorphous 11.00 10 lbs lbs0

SUPERFLEX BLU RTV SILICONEADHES SEALANT

70863477 7631869silica, amorphous 30.00 31 lbs lbs0

CLEAVER CAST,FURNACAST,HISTRGTH 28-LI..

CLEAVER 14464461silica, crystalline cristobalite 20.00 352 lbs lbs12

PHOXBOND PHOXBOND 14464461silica, crystalline cristobalite 20.00 44 lbs lbs1

SUPER RAM CP-50 9180 69012642silica,amorphous 5.00 80,369 lbs lbs429

FLEETWELD 180 ELECTRODESAWS E6011

E6011 1344098silicates and other binders 5.00 49 lbs lbs0

FLEETWELD 5P AWS E6010 LIN6010 1344098silicates and other binders 5.00 30 lbs lbs0

JETWELD 3, AWS E7024 70977467 1344098silicates and other binders 5.00 3 lbs lbs0

JETWELD LH-70, E7018 LIN LH-70 1344098silicates and other binders 5.00 312 lbs lbs2

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 51

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

LINCOLN 7018 AC ELECTRODE JET LH73 1344098silicates and other binders 5.00 3 lbs lbs0

CAST STEEL SHOT,LOW CARBONCAST STL SHOT

AMASTEEL 7440213silicon 1.20 1,416 lbs lbs19

FOUNDRY PIG IRON PIGIRONsilicon 3.50 67,487 lbs lbs380

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 7440213silicon 1.00 17 lbs lbs1

HI-ALLOY 500 WELDINGELECTRODE

500HIALLOY 7440213silicon 2.00 0 lbs lbs0

HI-IMPACT ELECTRODE MANGTROD 7440213silicon 100.00 150 lbs lbs5

HOBART BROTHERS 811N2WELDING

71238372 7440213silicon 4.00 150 lbs lbs2

METAL-COR 6L WELDING WIRE 1000004281 7440213silicon 4.00 1,267 lbs lbs7

PALCO 808 8001010 7440213silicon 4.00 0 lbs lbs0

SILICON METAL SILCN METL 7440213silicon 99.50 8,955 lbs lbs159

LINCOLN 7018 AC ELECTRODE JET LH73 7440213silicon / silicon alloys and compounds 0.50 0 lbs lbs0

JETWELD 3, AWS E7024 70977467 7440213silicon and/or silicon alloys 0.50 0 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 52

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

JETWELD LH-70, E7018 LIN LH-70 7440213silicon and/or silicon alloys 1.00 62 lbs lbs0

LC1207 SAINT GOBAIN WETSICARB MORTAR

LC1207 409212silicon carbide 90.00 77,310 lbs lbs503

RC1114 RAM MIX 9183 409212silicon carbide 98.00 69,570 lbs lbs541

INNERSHIELD NS-3M ALL SIZES 70977913 7440213silicon compounds 0.50 24 lbs lbs0

C-5A ANTISEIZE ANTISEIZE 14808607silicon dioxide 0.20 0 lbs lbs0

DURALUM 70997788 7631869silicon dioxide 1.70 214 lbs lbs4

KAST-O-LITE 50-25 DS LITECAST 7631869silicon dioxide 20.00 13,118 lbs lbs97

WHITEBLAST 9562silicon dioxide 81.00 220,968 lbs lbs2,248

UNI-PLAS 85ESS 70995683 7631869silicon dioxide (silica) 100.00 76,176 lbs lbs436

SUPERFLEX BLU RTV SILICONEADHES SEALANT

70863477 68583493siloxane treated fumed silica 30.00 31 lbs lbs0

44 RESIN FLUX CORED SOLDER 70977327 7440224silver 10.00 1 lbs lbs0

ACID FLUX CORED SOLDER ACIDFLUX 7440224silver 100.00 9 lbs lbs0

KAO-TEX 1000 CLOTH 70995428sizing 5.00 370 lbs lbs2

ULTREX PLUS PBB 8001760 64665572sodium 4 or 5 methyl-1h-benzotriazolide

10.00 172 lbs lbs6

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 53

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

SODIUM ALUMINUMTETRAFLUORIDE

8015742 7784169sodium aluminum tetrachloride 100.00 88,160 lbs lbs2,939

SODIUM ALUMINUMTETRAFLUORIDE

8015742 13821153sodium aluminum tetrafluoride 100.00 88,160 lbs lbs2,939

CRC BATTERY CLEANER 8015660 144558sodium bicarbonate 10.00 0 lbs lbs0

ULTREX PLUS PBB 8001760 7647156sodium bromide 10.00 172 lbs lbs6

SODIUM CARBONATE,ANHYDROUS

SODA ASH 497198sodium carbonate 99.80 882,751 lbs lbs6,465

PALCO 450 PAL450 15096523sodium cryolite 30.00 9 lbs lbs0

CRAZY CLEAN ALL PURPOSECLEANER

N/A 64028sodium ethylene diamine tetraacetate 5.00 0 lbs lbs0

HI-ALLOY 500 WELDINGELECTRODE

500HIALLOY 7681494sodium fluoride 11.00 2 lbs lbs0

PALCO 450 PAL450 7681494sodium fluoride 5.00 2 lbs lbs0

ALKA-BRITE 8001732 1310732sodium hydroxide (caustic soda) 10.00 7 lbs lbs0

STEAM CLEANER 70935358 6834920sodium metasilicate 10.00 53 lbs lbs2

WHITEBLAST 9562sodium oxide 14.00 38,192 lbs lbs389

MORCOSET 50, 50 FIRM & 50DIPPING

9569 1344098sodium silicate 25.00 8,520 lbs lbs82

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 54

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

PALCO 450 PAL450 1344098sodium silicate 5.00 2 lbs lbs0

PALCO 700 71344555 1344098sodium silicate 5.00 3 lbs lbs0

PALCO 808 8001010 1344098sodium silicate 12.00 1 lbs lbs0

DERBY 3000 70995692 1344098sodium silicate solution 20.00 2,302 lbs lbs22

LIQUID PAPER CORRECTIONFLUID LPCF-19-1

CORRECTIO 64742898solvent naphtha 100.00 3 lbs lbs0

SBS-44 PROTECTIVE CREAM,WATER RESISTANT

70969795 93823stearamide dea 5.00 9 lbs lbs0

SBS-44 PROTECTIVE CREAM,WATER RESISTANT

70969795 57114stearic acid 5.00 9 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 57114stearic acid 5.00 2 lbs lbs0

SBS-44 PROTECTIVE CREAM,WATER RESISTANT

70969795 112925stearyl alcohol 5.00 9 lbs lbs0

CHEVRON HEATING FUEL NO. 1 8000132 64741442straight run middle distillates 100.00 105,395 lbs lbs1,212

PALCO 808 8001010 1633052strontium carbonate 8.00 0 lbs lbs0

METAL-COR 6L WELDING WIRE 1000004281 7783484strontium fluoride 2.00 634 lbs lbs4

CALCINED FLUID PETROLEUMCOKE

9551 7704349sulfur 5.50 452,572 lbs lbs2,804

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 55

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

CALCINED PETROLEUM COKE 9160 7704349sulfur 4.50 10,666,848 lbs lbs70,409

FOUNDRY PIG IRON PIGIRONsulfur 0.04 771 lbs lbs4

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 7704349sulfur 0.05 1 lbs lbs0

SULFURIC ACID 70631776 7664939sulfuric acid 98.00 71,991 lbs lbs568

AVIATION FORM-A-GASKET #3 AVIATION#3 14807966talc 20.00 2 lbs lbs0

PORTERGUARD ALKYD METALPRIMER-WHITE 276

PORTR276 14807966talc 10.00 10 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 14807966talc 5.00 2 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 4568289tea-stearate 5.00 2 lbs lbs0

THERMINOL 66 HEAT TRANSFERFLUID

70995121 26140603terphenyl 8.00 616 lbs lbs9

THERMINOL 66 HEAT TRANSFERFLUID

70995121 61788327terphenyl, hydrogenated 87.00 6,696 lbs lbs98

ULTREX PLUS PBB 8001760 3794830tetrasodium 1-hydroxyethylidenebisphosp

30.00 515 lbs lbs17

44 RESIN FLUX CORED SOLDER 70977327 7440315tin 100.00 8 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 56

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

ACID FLUX CORED SOLDER ACIDFLUX 7440315tin 100.00 9 lbs lbs0

LENOX STERLING LEAD-FREESOLDER

70977319 7440315tin 95.00 6 lbs lbs0

HOBART BROTHERS 811N2WELDINGWIRE

71238372 7440326titanium 2.00 75 lbs lbs1

METAL-COR 6L WELDING WIRE 1000004281 7440326titanium 2.00 634 lbs lbs4

LINCOLN 7018 AC ELECTRODE JET LH73 12719903titanium / titanium alloys 0.50 0 lbs lbs0

DURALUM 70997788 13463677titanium dioxide 4.00 504 lbs lbs10

FORM A GASKET #1 SEALANT 70372438 13463677titanium dioxide 1.00 0 lbs lbs0

HI-IMPACT ELECTRODE MANGTROD 13463677titanium dioxide 100.00 150 lbs lbs5

HOBART BROTHERS 811N2WELDINGWIRE

71238372 13463677titanium dioxide 10.00 376 lbs lbs4

JETWELD 3, AWS E7024 70977467 13463677titanium dioxide 5.00 3 lbs lbs0

KRYLON 1501 INT/EXT GLOSSYWHITE

70971692 13463677titanium dioxide 7.00 1 lbs lbs0

KRYLON OSHA COLORS SAFETYYELLOW 1813

70971668 13463677titanium dioxide 2.00 3 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 57

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

LIQUID PAPER CORRECTIONFLUID LPCF-19-1

CORRECTIO 13463677titanium dioxide 100.00 3 lbs lbs0

LOCTITE 242 THREADLOCKER LOC242 13463677titanium dioxide 1.00 0 lbs lbs0

METAL-COR 6L WELDING WIRE 1000004281 13463677titanium dioxide 10.00 3,168 lbs lbs18

MORCO FEATHERLITE 1600 MORCO1600 13463677titanium dioxide 0.10 1 lbs lbs0

MORCOCAST 45-28 SF-0 8001720 13463677titanium dioxide 3.00 3,468 lbs lbs45

MORCOCAST HS-0 MORCOCAS 13463677titanium dioxide 2.50 1,984 lbs lbs20

MORCOSET 50, 50 FIRM & 50DIPPING

9569 13463677titanium dioxide 2.00 682 lbs lbs7

PALCO 700 71344555 13463677titanium dioxide 30.00 15 lbs lbs1

PORTERGUARD ALKYD METALPRIMER-WHITE 276

PORTR276 13463677titanium dioxide 20.00 19 lbs lbs1

PPG QUICK DRY SPRAY ENML, 55-B (302,...)

PPG 55-B 13463677titanium dioxide 15.00 8 lbs lbs0

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 13463677titanium dioxide 1.00 0 lbs lbs0

SW TOUGH COAT S00329MACHINERY BLUE GRAY

70971437 13463677titanium dioxide 1.00 1 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 58

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

FLEETWELD 180 ELECTRODESAWS E6011

E6011 13463677titanium dioxides 5.00 49 lbs lbs0

LINCOLN 7018 AC ELECTRODE JET LH73 13463677titanium dioxides 10.00 5 lbs lbs0

FLEETWELD 5P AWS E6010 LIN6010 13463677titanium dioxides (as ti) 5.00 30 lbs lbs0

UNI-PLAS 85ESS 70995683 13463677titanium oxide 100.00 76,176 lbs lbs436

BLEND 2266 70975511 108883toluene 100.00 2 lbs lbs0

CRC DRY GRAPHITE LUBE GRAPHITE 108883toluene 2.00 1 lbs lbs0

KRYLON 1701 INT./EXT. BRIGHTGOLD

70971676 108883toluene 38.00 1 lbs lbs0

KRYLON HIGH HEAT & RADIATORPAINT BLACK

70971593 108883toluene 28.00 7 lbs lbs0

MARATHON REGULAR UNLEADEDGASOLINE

71347120 108883toluene 13.50 31,080 lbs lbs259

SPRAYON RED INSULATINGVARNISH

70947320 108883toluene 17.00 1 lbs lbs0

STEEL INK BLUE (AEROSOL) 70968904 108883toluene 27.00 0 lbs lbs0

WELDERS BLACK MAGIC 8001890 108883toluene 20.00 4 lbs lbs0

DIESEL FUEL NO. 2 HSDIESELtotal sulfur 0.50 5,934 lbs lbs37

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 59

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

LC1207 SAINT GOBAIN WETSICARB MORTAR

LC1207trade secret 20.00 17,180 lbs lbs112

PIG REPAIR PUTTY PTY201,202,209,230

71002703 90722tri (dimethylaminomethyl) phenol 3.00 3 lbs lbs0

MARATHON REGULAR UNLEADEDGASOLINE

71347120unsaturated hydrocarbons 13.50 31,080 lbs lbs259

SW ENGINE PAINTS 1612UNIVERSAL BLACK

N/A 64742898v.m.&p. naphtha 20.00 16 lbs lbs0

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 7440626vanadium 0.10 2 lbs lbs0

JETWELD LH-70, E7018 LIN LH-70 7440822vanadium alloys 0.50 31 lbs lbs0

AVIATION FORM-A-GASKET #3 AVIATION#3 68187848vegetable oil 40.00 4 lbs lbs0

FORM A GASKET #1 SEALANT 70372438 68187848vegetable oil 5.00 0 lbs lbs0

AVIATION FORM-A-GASKET #3 AVIATION#3 7732185water 3.00 0 lbs lbs0

CER-WOOL MOLDABLE 9561 7732185water 60.00 2,476 lbs lbs83

CERAFIBER KAOWOOL PYRO-BLOC

KAOWOOLF 7732185water 60.00 6,842 lbs lbs42

CRC BATTERY CLEANER 8015660 7732185water 90.00 4 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 60

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

DERBY 3000 70995692 7732185water 7.00 806 lbs lbs8

FIBERFRAX QF CEMENTS CEMNTQF 7732185water 50.00 382 lbs lbs2

SBS-44 PROTECTIVE CREAM,WATER RESISTANT

70969795 7732185water 100.00 187 lbs lbs1

SBS-46 PROTECTIVE CREAM,SOLVENT-RESIST.

70969803 7732185water 100.00 34 lbs lbs0

SULFURIC ACID 70631776water 2.00 1,469 lbs lbs12

YELLOW 77 WIRE PULLINGLUBRICANT

70947304 7732185water 90.00 29 lbs lbs1

BLEND 2266 70975511 1330207xylene 100.00 2 lbs lbs0

KRYLON 1501 INT/EXT GLOSSYWHITE

70971692 1330207xylene 7.00 1 lbs lbs0

KRYLON HIGH HEAT & RADIATORPAINT BLACK

70971593 1330207xylene 2.00 0 lbs lbs0

KRYLON HIGH HEAT & RADIATORPAINT,ALUM.

70971585 1330207xylene 12.00 19 lbs lbs0

KRYLON INT/EXT PAINT, BANNERRED 2108

70971635 1330207xylene 9.00 11 lbs lbs0

KRYLON INT/EXT PAINT, GLOSSYBLACK 1601

70971650 1330207xylene 9.00 9 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 61

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

KRYLON INT/EXT TRUE BLUE 1910 70971643 1330207xylene 8.00 10 lbs lbs0

KRYLON OSHA COLORS SAFETYPOP ORNG 2410

70971601 1330207xylene 9.00 2 lbs lbs0

KRYLON OSHA COLORS SAFETYPURPLE 1929

70971619 1330207xylene 10.00 4 lbs lbs0

KRYLON OSHA COLORS SAFETYYELLOW 1813

70971668 1330207xylene 7.00 10 lbs lbs0

MARATHON REGULAR UNLEADEDGASOLINE

71347120 1330207xylene 9.00 20,720 lbs lbs173

PPG QUICK DRY SPRAY ENML, 55-B (302,...)

PPG 55-B 1330207xylene 35.00 19 lbs lbs0

SPRAYON RED INSULATINGVARNISH

70947320 1330207xylene 15.00 1 lbs lbs0

SW IND. MNT.&TOUCHUP SPRAY-2501 LEATHER

70971627 1330207xylene 11.00 1 lbs lbs0

SW TOUGH COAT S00329MACHINERY BLUE GRAY

70971437 1330207xylene 25.00 14 lbs lbs0

U-PRIME, UNIVERSAL PRIMER282,284,285

70971726 1330207xylene 16.00 6 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 62

SARA 312 Inventory ReportReporting Year 2012

Tradename MSDS ID CAS YTD Avg Qty Max Qty YTDComponent % Mix

WELDERS BLACK MAGIC 8001890 133207xylene 5.00 1 lbs lbs0

YELLOW 77 WIRE PULLINGLUBRICANT

70947304 6358312yellow pigment 0.10 0 lbs lbs0

44 RESIN FLUX CORED SOLDER 70977327 7440666zinc 10.00 1 lbs lbs0

GALVANIZED SHEETS,HOT&COLDROLD CARB...

71343647 1314132zinc 10.00 171 lbs lbs5

JETWELD LH-70, E7018 LIN LH-70 1314132zinc and/or zinc oxides 0.50 31 lbs lbs0

ACID FLUX CORED SOLDER ACIDFLUX 7646857zinc chloride 100.00 9 lbs lbs0

OATEY #5 PASTE FLUX SOLDRPAST 7646857zinc chloride 30.00 1 lbs lbs0

MOBILGREASE XHP 222 8001800 68649423zinc dialkyl dithiophosphate 5.00 34 lbs lbs0

MOBILITH SHC 100 GREASE MOBILITH 68457794zinc dialkyl dithiophosphate 2.50 0 lbs lbs0

MOBILITH SHC 100 GREASE MOBILITH 27253298zinc neodecanoate 0.01 0 lbs lbs0

PIG REPAIR PUTTY PTY201,202,209,230

71002703 1314983zinc sulfide 3.00 3 lbs lbs0

Copyright (c) 2006 by MSDS1, Inc. All rights reserved.

Saturday, January 12, 2013

Company: Century Aluminum Of Kentucky, LLC

Address: P.O. Box 500

Hawesville KY 42348

Page 63