General Studies · Porter's Value Chain

GHJ Co is a manufacturing company that makes a specialized, labor-intensive product and provides maintenance and after-sales service. - Department W uses materials and labor to produce the final product. - Department X stores the final product and delivers it to customers. - Department Y handles advertising and promotion of the final product. - Department Z provides spare parts and maintenance services to customers. Match the departments of GHJ Co to the primary activities of Porter's value chain.