Albis GMBH, Germany

Great Lakes Chemical, Memphis, TN

American Cyanamid, Westwego, LA

Greenwich Distillers, London, UK

Atochem, Houston, TX

Gulf Chemical Co., Freeport, TX

Bahamas Refining Co., Freeport, Bahamas

Huntsman Labs., Austin, TX

Borden, Baytown, TX

International Gasohol Corp., Metairie, LA

Calgon Corp., Pasadena, TX

Liquid Air, Houston, TX

Ciba Geigy, McIntosh, AL

Lyondell Petrochemical Co.., Houston, TX

Ciba Geigy, St. Gabriel, LA

Marathon Oil, Garyville, LA

Cit-Con, Westlake, LA

Mt. Airy Refining Co., Mt. Airy, LA

Continental Airlines, Houston, TX

Murphy Oil, Meraux, LA

Devon Energy, Houston, TX

NGO (Oxy), Baytown, TX

Du Pont, La Place, LA

Ocean Energy, Houston, TX

Diversified CPC, Chicago, IL

Occidental Chemical Co., Taft, LA

Duke Energy, Gruver, TX

Occidental Chemical Co., Lake Charles, LA

El Dorado Chemical Co., El Dorado, AR

Pennwalt, Houston, TX

Elf Atochem, Houston, TX

Quantum Chemical Co., Deer Park, TX

Englehard, Pasadena, TX

Sooner Refining Co., Egan, LA

Enjet, Houston, TX

South Louisiana Prod. Co., Lafayette, LA

Evalca, Pasadena, TX

T & S Refining Co., Jennings, LA

General Electric, Houston, TX

Tenneco, Chalmette, LA

Goodyear (Celeron), Egan, LA

Tate & Lyle, London, UK

Goodyear Tire, Pasadena, TX

Texaco, Convent, LA

Goodyear Tire, Akron, OH

Union Carbide, Greensburg, LA

Grant Chemicals, Baton Rouge, LA

Vulcan Materials Co., Geismar, LA

Great Lakes Chemical Co., El Dorado, AR

Witco, Taft, LA

Albis GMBH, Germany

Great Lakes Chemical, Memphis, TN

American Cyanamid, Westwego, LA

Greenwich Distillers, London, UK

Atochem, Houston, TX

Gulf Chemical Co., Freeport, TX

Bahamas Refining Co., Freeport, Bahamas

Huntsman Labs., Austin, TX

Borden, Baytown, TX

International Gasohol Corp., Metairie, LA

Calgon Corp., Pasadena, TX

Liquid Air, Houston, TX

Ciba Geigy, McIntosh, AL

Lyondell Petrochemical Co.., Houston, TX

Ciba Geigy, St. Gabriel, LA

Marathon Oil, Garyville, LA

Cit-Con, Westlake, LA

Mt. Airy Refining Co., Mt. Airy, LA

Continental Airlines, Houston, TX

Murphy Oil, Meraux, LA

Devon Energy, Houston, TX

NGO (Oxy), Baytown, TX

Du Pont, La Place, LA

Ocean Energy, Houston, TX

Diversified CPC, Chicago, IL

Occidental Chemical Co., Taft, LA

Duke Energy, Gruver, TX

Occidental Chemical Co., Lake Charles, LA

El Dorado Chemical Co., El Dorado, AR

Pennwalt, Houston, TX

Elf Atochem, Houston, TX

Quantum Chemical Co., Deer Park, TX

Englehard, Pasadena, TX

Sooner Refining Co., Egan, LA

Enjet, Houston, TX

South Louisiana Prod. Co., Lafayette, LA

Evalca, Pasadena, TX

T & S Refining Co., Jennings, LA

General Electric, Houston, TX

Tenneco, Chalmette, LA

Goodyear (Celeron), Egan, LA

Tate & Lyle, London, UK

Goodyear Tire, Pasadena, TX

Texaco, Convent, LA

Goodyear Tire, Akron, OH

Union Carbide, Greensburg, LA

Grant Chemicals, Baton Rouge, LA

Vulcan Materials Co., Geismar, LA

Great Lakes Chemical Co., El Dorado, AR

Witco, Taft, LA

Albis GMBH, Germany

Great Lakes Chemical, Memphis, TN

American Cyanamid, Westwego, LA

Greenwich Distillers, London, UK

Atochem, Houston, TX

Gulf Chemical Co., Freeport, TX

Bahamas Refining Co., Freeport, Bahamas

Huntsman Labs., Austin, TX

Borden, Baytown, TX

International Gasohol Corp., Metairie, LA

Calgon Corp., Pasadena, TX

Liquid Air, Houston, TX

Ciba Geigy, McIntosh, AL

Lyondell Petrochemical Co.., Houston, TX

Ciba Geigy, St. Gabriel, LA

Marathon Oil, Garyville, LA

Cit-Con, Westlake, LA

Mt. Airy Refining Co., Mt. Airy, LA

Continental Airlines, Houston, TX

Murphy Oil, Meraux, LA

Devon Energy, Houston, TX

NGO (Oxy), Baytown, TX

Du Pont, La Place, LA

Ocean Energy, Houston, TX

Diversified CPC, Chicago, IL

Occidental Chemical Co., Taft, LA

Duke Energy, Gruver, TX

Occidental Chemical Co., Lake Charles, LA

El Dorado Chemical Co., El Dorado, AR

Pennwalt, Houston, TX

Elf Atochem, Houston, TX

Quantum Chemical Co., Deer Park, TX

Englehard, Pasadena, TX

Sooner Refining Co., Egan, LA

Enjet, Houston, TX

South Louisiana Prod. Co., Lafayette, LA

Evalca, Pasadena, TX

T & S Refining Co., Jennings, LA

General Electric, Houston, TX

Tenneco, Chalmette, LA

Goodyear (Celeron), Egan, LA

Tate & Lyle, London, UK

Goodyear Tire, Pasadena, TX

Texaco, Convent, LA

Goodyear Tire, Akron, OH

Union Carbide, Greensburg, LA

Grant Chemicals, Baton Rouge, LA

Vulcan Materials Co., Geismar, LA

Great Lakes Chemical Co., El Dorado, AR

Witco, Taft, LA