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3M Company
ACM Automation
ADA Carbon Solutions
Adare Pharmaceuticals, Inc.
ADCO Products, Inc.
Advanced Micro Devices Inc.
Advanced Silicon Materials Inc.
AEA Technology
Agave Energy Corporation
Agrifos Fertilizer Company LLC
Air Products and Chemicals
Akzo Nobel 
Akzo Nobel Coatings, Inc. 
Albright & Wilson 
Alcan Aluminum Company
Alcoa Technology
Alexander Chemical Corporation
All American Gourmet Company
Allied Signal Inc.
Alpha Owens Corning (AOC)
Altinex UK Ltd
ALTIVIA Petrochemicals
Alyeska Pipeline Service
AM Kinney
Amax Speciality Coppers
AMEC Process and Energy
American Home Products
American Industrial Refrigeration
American Institute of Chemical Engineers
American Refining Group
American Society of Safety Engineers
Americas Styrenics, LLC
AmeriGas Propange
AMVAC Chemical Corp.
Amway Corporation
Anadarko Petroleum Corporation
Anderson Development Corporation
Anglo American
Anheuser-Busch Companies, Inc.
APG Polytech
Aqualon Hercules Inc.
Aramco Services Company
Arboris LLC
Archer Daniels Midland (ADM) Company
Arco Alaska Inc.
Arco Chemical Company
Ardent Mills
Aristech Chemical Corporation
Arizona Chemical Company
Arkema Inc.
Armour Swift-Eckrich
Arnette Polymers, LLC
Ascensus Specialties
Ashland Chemical Company
Ashland Company
ASHTA Chemicals
ATK Thiokol Corporation
Atlantic LNG
Atlantic Methanol Production Company
Atlantic Richfield (ARCO)
Ausimont USA Inc.
Avery Dennison
Axalta Coating Systems
Axium Packaging
B.F. Goodrich Company
Babcock Naval Services
BASF Corporation
Basis Petroleum
Baxter Healthcare
Bayer AG
Bechtel Group
Ben & Jerry's
Ben Gurion University
Bethlehem Steel
BHP Billiton Petroleum
BNS Engineering N.V.
Boehringer Ingelheim Pharma
Borden Chemicals & Plastics
BP Chemicals Company
BP Oil Company
BP Pipelines
BP U.S. Logistics
Braven Environmental
Bridge Gap Engineers, LLC
Bristol-Meyers Squibb
British Gas Services
British Gas Trinidad & Tobago Ltd.
Broadcom Inc.
Burlington Resources
Butterball Turkey Company
BW Design Group
C&I Engineering
Cabot Corporation
Calabrian Corporation
Caltex Services Corporation
Calumet Superior, LLC
Cameron International Corporation
Campbell Soup Company
Canadian Oxy Chemicals
Canal Refining Company
Cargill Inc.
Carus Corporation
CasChem, Inc.
CDI Engineering Group
Celanese Chemicals
Cenovus Energy
Central Contra Costa Sanitary District
Ceradyne, Inc.
CF Industries Holdings, Inc.
CH2M Hill
Champion Technologies, Inc.
Chardon Custom Polymers, LLC
Chemical Engineering Partners
Chempute International
Chevron Research & Technology Co.
Chevron Specialty Chemicals
Chicago Bridge & Iron
China Light and Power Hong Kong
Christenson Engineering Corporation
Ciba Specialty Chemicals
City Brewing Company, LLC
City of Martinez, CA
City of Palo Alto, CA
City of Peoria
CJ Osborne Chemical Corporation
Clariant Corporation
Clark, Richardson and Biskup
Club Chef
CMC Materials
Coastal Eagle Point Oil Company
Cogen Technologies
Cognis Corporation
Columbus Division of Water
Cominco Fertilizers
Comision Chilena de Energia Nuclear
Comstock Michigan Fruit Division
Constellation Brands
Cornerstone Chemical Company
Corning Incorporated
Croda, Inc.
Crosstex Energy
Cumberland Farms
Cyanco Company
Dakota Gasification Company
Dairymple Bay Coal Terminal Pty Ltd.
Dames & Moore
Dart Polymers
Day-Glo Color Corp.
DCP Midstream
Denka Performance Elastomer
Devon Energy
Disaster Management Institute
Dominion Transmission Inc.
Dow Chemical USA
DPS Group
Dreyer's Grand Ice Cream
DSM Elastomers Europe BV
Duke Energy Corporation
Durban Institute of Technology
DynMcDermott Petroleum
Dyno Nobel
E&J Gallo Winery
E.I. DuPont
Eagle Rock Energy
East Bay (CA) Municipal Utility Dist.
Eastman Kodak Company
Eaton Corporation
Ecolab Company
ECRC, Inc.
EES Coke Battery, LLC.
EG&G Rocky Flats, Inc.
El Dorado Chemical
EM Science
Embry-Riddle Aeronautical Univ.
EMD Chemicals
EMD Millipore Corporation
Emirates National Oil Company
EN Engineering
Enbridge Pipelines
Energy Conversion Devices, Inc.
Enogex Products
ENSR Consulting & Engineering
Entec UK Ltd.
Entegris, Inc.
Enterprise Products Company
EOG Resources, Inc.
Epsilon Products Company
Epsilyte LLC
EQE International (S) Pte Ltd.
Equilon Enterprises
Esso Petroleum Company Limited
Ethicon Inc.
Ethyl Corporation
Excel Corporation
Excelsior Alchemy
Explorer Pipeline Co.
Exxon Mobile
Factory Mutual Research Corporation
Fauji Fertilizer Company Ltd.
Ferro Corporation
Ferro Pfanstiehl Lab. Inc.
Firestone Syn. Rubber & Latex Co.
Fish Engineering
Fisher Scientific Company
Flexsys America L.P.
Florida Power and Light
Fluor Daniel, Inc.
Flying J Refining
FMC Biopolymer
FMC Corporation
FMC SOFEC Floating Systems Inc.
Folger Coffee Company
Food Ingredients Development
Formosa Plastics Corporation
FortisBC Energy, Inc.
Foster Wheeler
Freeport LNG Development
Friendly Ice Cream Corporation
Frontier Refining Inc.
FutureFuel Corporation
Galp Energia
Garden City Community College
Gavilion, LLC
GE Lighting, Inc.
GE Nuclear Energy
Genzyme Corporation
Geo Specialty Chemicals Inc.
Geon Vinyl Corporation
Global Asset Solutions
Good Humor - Bryers Ice Cream
Goodrich Corporation
Grain Processing Corporation
Granherne Ltd.
Gray Solutions, LLC
Green Prairie Renewable Energy
Grimmway Farms
Grupo Mgo
Gulf Canada Ltd.
Halocarbon, LLC
Hampshire Chemical Corporation
Hatch Ltd.
Hebrew National / Kosher Foods
Helmerich and Payne Int. Drilling
Henkel Corporation
Hercules Inc.
Heritage Farms Dairy
Hess Corporation
Hess Oil Virgin Islands Corporation
Hexcel Corporation
HF Sinclair Corporation
Hibernia Management and Dev. Co.
Hillshire Farm & Kahn's.
Hi-Tek Polymers, Inc.
Home Oil Company
Honeywell International
Honeywell UOP
Howard Energy Partners
Hughes Associates Inc.
Huls America Inc.
Hunt Refining Company
Huntsman Corporation
Husky Energy Inc.
Hyplaines Beef, L.P.
IBM Corporation 
ICI Americas
ICI Canada
ICI Paints
ICU Environmental, Health & Safety
IHC Gusto Engineering B.V.
Illinois State University
Imperial Oil
Imperial West Chemical Company
Indian Oil Corporation Ltd. (IOCL)
Indian Register of Shipping
Indiana University of Pennsylvania
Indorama Ventures Public Company Limited
INDSPEC Chemical Corporation
Ineos Phenol
Ineos Silicas
Infineum International Limited
Inland Paperboard and Packaging
Int. Institute of Ammonia Refrigeration
International Paper Company
International Flavor & Fragrances
International Paint LLC
INVISTA Corporation
Irish Petroleum Company Limited
Irving Oil
Isis Pharmaceuticals, Inc.
ISP Chemicals
J.T. Baker, Inc.
Jacobs Engineering
James Hardle Building Products, Inc.
James River Corporation
JGC Corporation
Johanna Farms
John LaBatt, Ltd.
John Morrell Food Group
Johns Manville Corporation
Johnson & Johnson
Johnson Matthey Pharmaceutical Materials
J.R. Simplot Company
Jupiter GTL, LLC
Kao Specialties America LLC
Kalnin Ventures
Kemira Inc.
Kentucky Blue Gas Company
Kerr-McGee Corporation
Kinder Morgan
Kinder Morgan CO2 Company Ltd.
King Industries
Kingspan Group
KMG Electronic Chemicals
Koch Nitrogen
Koch Pipelines
Korea Gas Corporation
Kraton Polymers
Krupp Uhbe GmbH
Kuwait National Petroleum Company
Kvaerner Powergas India
Larsen & Toubro Limited 
Lesaffre Yeast Corporation
LG Engineering & Construction
Linde-KCA-Dresden GmbH
Lion Oil Company
Lloyd's Register
Loders Croklaan
LSB Industries
Lucent Technologies
Lucent Technologies
Lurgi Oel Gas Chemie GmbH
M&H Engineering
Mapco Natural Gas Liquids Inc.
Mapei Corporation
Marathon Petroleum Company
Marcal Paper Mills
Marchem Technologies, Inc.
MarkWest Hydrocarbon Partners
Martek Biosciences
Mary Kay Corporation
Matrix Engineering, Inc.
Maverick Engineering
MCB & Associates LLC
McCain Foods
McWhorter Technologies
Melamine Chemical Company
MEMC Pasadena, Inc.
Merch Animal Health
Merck & Company, Inc.
Merck Sharpe & Dohme
Metropolitan Water District
Michigan Dairy
Middlesex Water Company
Millennium Specialty Chemicals
Mitsubishi Chemical Corporation
Mitsubishi Polysilicon
Mobil Oil Corporation
Monsanto Company
Morgan Advanced Ceramics
Morrison & Foerster
Morrison Knudsen
Morton International
Mosaic Company
Mountaire Farms
Mrs. Smith's Frozen Foods Company
Murphy Oil Corporation
Mylan Laboratories
National Gas Corp. Of Trinidad
National Grid
National Industrial Gases Company
National Starch & Chemical Company
Neill and Gunter Limited
Nestle Beverage Company
Nuevo Midstream, LLC
Nicholas Consulting Group
Nippon Dynawave
Noltex LLC
Noramco Inc.
NOVA Chemicals
Novo Nordisk A/S
Nu-Iron Unlimited
NuSil Technology
NutraSweet Company
Nutrien AG Solution
O'Brien & Geer Engineers
Occidental Chemical Corporation
Occidental Petroleum Corporation
Ocean Spray
Oklahoma Safety Council
Omnova Solutions Inc.
Onyx Environmental Services
OSHA Training Institute
Owensboro Specialty Polymers, Inc.
Oxy Permian
Oxy Vinyls Canada
P.T. Arun
P.T. Badak
Pacific Ethanol
Pacific Gas & Electric Company
Pacific Refining
Pacific Scientific
Parsons International
Penford Products
Pennzoil Company
Pestritto Foods Inc.
Petresa Canada Inc.
Petro Star Inc.
PetroChina International Jabung Ltd.
PetroFac, Inc.
Petrogal, S.A.
Petrojam Limited
Petroleum Company of Trinidad
Petrosantander USA Inc.
Pfizer Inc.
Philbro Energy USA, Inc.
Phillippine Geothermal, Inc.
Phillips 66
Phillips Refining
Pilot Laboratories Inc.
Pioneer Americas, Inc.
Pittsburgh Glass Works
Placid Refining Company
Plastics Engineering Co.
Plug Power
POET Biorefining
PolyOne Corporation
PolySource, Inc.
PPG Aerospace
PPG Industries Inc.
PQ Corporation
Praxair, Inc.
Premcor Reginning Group
Primex Technologies
Process Plant Services Limited
Processos-Solucoes de Engenharia
Procon India Pvt. Ltd.
Proctor & Gamble Company
Progress Energy
Protein Technologies
PT Kvaerner Indonesia
PT Tripatra Engineering
PT. Inti Karya Persada Tehnik
Puna Geothermal Venture
Purdue Pharma
Qatar Petroleum
Quaker Chemical
Quality Assurance Management
Quantum Chemical Corporation
Questar Gas Management
R.F. Webb Corporation
Rahway Valley Sewerage Authority
Rally Engineering
Randall's Food Markets, Inc.
REC Silicon
Recontek Inc.
Refineria Isla
Reichhold, Inc.
Reliance Industries Ltd.
Renessenz, LLC
Rensselaer Polytechnic Inst.
Repsol YPF
Rhone-Poulenc Inc.
Roche Vitamins Inc.
Rohm Tech, Inc.
RPM International
RSP Consultores, CA
Rust International
S & B Infastructure
Sacramento Area Water Works
Safwan Petroleum Technologies Co.
Salsbury Chemicals, Inc.
Sandoz Chemicals Corporation
Sara Lee Corporation
Sargent & Lundy
Saskatoon Chemicals Ltd.
SASP Offshore Engineering SpA
Saudi Aramco
Saudi European Petrochemical
Schenectady International
Schering-Plough Products Inc.
SchmArt Engineering, Inc.
Seaboard Foods, Inc.
Seabrook Brothers and Sons Inc.
Seneca Foods Corporation
Sensient Flavors, LLC
SGE Energia Group
Shell Chemical
Shell Oil Company
Shepherd Color Company
Sherritt Gordon
Sherwin-Williams Company
Shintech Louisianna LLC
Sibelco North America
Sidock Group Inc.
Siemens AG
Siemens Axiva
Sila Nanotechnologies Inc.
Silberline Manufacturing Company Inc.
Sinclair Oil Company
Singapore Refining Company Pte. Ltd.
Single Buoy Moorings Inc.
Sinopec Engineering
SK Engineering & Construction Co.
Smithfield Packaging
SNC Lavalin Inc.
Solutia, Inc.
Somerset Raritan Valley
Sonneborn Inc.
Special Devices Inc.
Specialty Polymers Antwerp NA
Stepan Company
Sterling Chemicals Inc.
Stone & Webster
Stouffer Foods
Stryrolution America LLC
Sulvaris, Inc.
Suncor Energy Services, Inc.
Sunny Fresh Foods
Sunoco Chemical
Sunoco Oil
Tamarack Farms Dairy
Taminco Chemical Inc.
Tampa Electric Company
Technical Consultants, Inc.
Tecnicas Reunidas SA
Tesoro Alaska Company
Tetra Process Services
Texaco Inc.
Texas A&M University
Texas International Terminals
The Kroger Company
Thermogas Company
Thomas Consulting
Thompson Publishing
ThyssenKrupp Robins
Tosco Refining Company
TOTAL E&P Nigeria Ltd.
TOTAL North America
Toyo Engineering
Treetop MidstreamServices, LLC
Tremco Inc.
Trend Gathering and Treating LP
Triton Equoatorial Guinea Inc.
Tropicana Products, Inc.
Troy Chemical Corporation
Trunkline LNG Company
Tuscan Daily Farms Inc.
U.S. Cold Storage
U.S. Department of Labor (OSHA)
U.S. Env. Protection Agency (EPA)
UCB Chemicals
Uhde Edeleanu GmbH
UCI Energy Services
UM Engineering S.A.
Unconventional Gas Solutions (UGS)
Unifield Engineering
Union Carbide Chemicals & Plastics
Union Carbide Corporation
Union Texas
United Refining Company
UOP Inc.
US Steel Corporation
USA Compression Partners
Valero Energy
Valero Refining Corporation
Valspar Corporation
Van Den Bergh Foods Company
Van Waters & Rogers
Vanderbilt Chemical Corporation
Veco Rocky Mountain, Inc.
Ventech Engineers International
Veolia Water North America
Vertellus Agriculture and Nutrition Specialties
Vertex Inc.
Vico Indonesia
Vitro Meadville Flat Glass, LLC
Wacker Silicones Corporation
Wärtsilä Oil & Gas Systems
Waste Management, Inc.
Waste Technologies Industries
WB Services, LLC
WCM Group Inc.
Webb, Murray & Associates
Wegman's Food Pharmacy
Western Fuels Association, Inc.
Westinghouse Electric
Westlake Chemical Corporation
Westlake Group of Companies
Weyerhaeuser Company
Winchester Farms Dairy
Wis-Pak Foods
Witco Corporation
Wood Group Mustang, Inc.
Woodbridge Group
Worley Parsons Ltd.
XTO Energy Inc.
Zeneca Chemicals
Zurich University
ZXP Technologies