final look ena ees sic codes following list industries ena responsible covering end use customers covered ees based input added big three automakers cement primary metals large agricultural addition ena 8 companies listed aerospace please let john know soon possible concerns else done regards chris industries mining oil gas refining paper forest products petroleum coal manufacturing plastics rubber fertilizer rail transportation auto manufacturing big three cement manufacturing primary metals large agricultural aerospace boeing raytheon mcdonnel douglas allied signal aerospace ge aircraft hamilton sundstrand john deere newport news shipbuilding