Some examples of secondary industries are textile production, steel production, oil refining, food processing, aerospace manufacturing and consumer electronics. The automotive, brewing, energy, tobacco, ship-making and chemical industries are also secondary.
Primary industries include all industries that produce raw materials, such as wool and wheat. Primary industries make use of natural resources, such as forests, to produce their goods. Secondary industries take raw materials and turn them into retail items. For example, in the textile industry, manufacturers produce clothing from cotton or wool. Tertiary industries deal with the framework of business and provide services, such as transportation, banking and sales.