The document discusses National Mine Service Company's use of trade shows for marketing. It describes the company's divisions and product lines. National Mine Service Company actively participates in annual trade shows, especially the large American mining congress international coal show. Management previously saw trade shows as important for launching new products and boosting employee morale but were losing interest in their effectiveness. However, trade shows provide personal selling opportunities, allow exhibiting new products, and help maintain the company's image and access to key decision-makers.