| ADM Corn Sweeteners | Irving Pulp & Paper |
| ADM Agri-Industries LTD | ITT Rayonier |
| Alcan | Jersey Central Power & Light |
| Alcoa | Johnson & Johnson |
| Alpo Products | Kaiser Cement |
| Alton Box Board | Kelly Springfield |
| American Biltrite | Lehigh Portland Cement |
| American Chrome & Chemical | Lincoln Pulp & Paper |
| Appleton Paper | Lone Star Cement |
| Bacardi Rum Company | Lorillard Inc. |
| Boise Cascade Paper Group | Louisiana Cement |
| Brunswick Pulp & Paper | MacMillan Bloedel Inc. |
| CalMat Company | Marathon Oil Company |
| Campbell Soup Company | Martin Marietta Cement |
| Celanese Fibers | Mead Coated Board |
| Cemento El Salvador | Mead Paper |
| Champion International | Michelin Tire Company |
| Chesapeake Corporation | Milliken Industries |
| Container Corp. of America | Mosinee Paper Company |
| Continental Lime Company | Nekoosa Paper |
| Crown Zellerbach | Owens Illinois |
| Domtar Industries | Pacific Bell |
| Dow Chemical | Potlach Paper |
| Dupont | Ralston Purina |
| Eli Lilly | Refined Sugars & Syrups |
| Federal Paper Board Company | Reynolds Metal |
| Florida Coast Paper Company | Rinker Portland Cement |
| Frontier Industries | S.D. Warren Company |
| General Motors | Sibonong Cement |
| General Electric Corporation | St. Anne Nackawic Pulp & Paper |
| Georgia Gulf Corporation | St. Joe Paper |
| Georgia Kraft | St. Lawrence Cement |
| Georgia-Pacific Corp. | Stone Container Corporation |
| Gilman Paper Company | Suez Cement |
| Great Southern Paper Company | Sun Oil Company |
| Grefco Minerals | Teledyne-Landis |
| Hanes Knitwear | Tennessee River Pulp & Paper |
| IBM | Todd Shipyards |
| International Paper | UCAR Carbon Corporation |
| Interstate Paper Company | Union Camp Corporation |
| Iowa Electric | Westinghouse |