Secondary industries are those that manufacture products for individuals to use, and they include the construction and production industries. The secondary industry is in contrast to the primary industry, which produces raw materials like natural resources, and the tertiary industry, which focuses on services needed by the primary and secondary industries.
Companies in the secondary industry may produce such items as automobiles, clothes and computers. Some characteristics of secondary industries are that they use a lot of energy and produce much waste. As of 2014, the European Union had the largest industrial output and was followed by China, the United States and Japan. According to ACTU Worksite, less tariff protection and increased competition have both led to a decline in manufacturing.