More than 50 percent of the electricity generated in the United States comes from coal-fired power plants. Joy Global is a worldwide mining machinery and services company. Through its market leading divisions, P&H Mining Equipment and Joy Mining Machinery, the company manufactures underground and surface mining equipment and offers aftermarket-related services. P&H Mining Equipment and Joy Mining Machinery are both recognized leaders in the design, manufacture, distribution, service and enhancement of mining machinery and equipment. Joy Global s products and related services are used extensively for the mining of coal, copper, iron, gold and other mineral resources. Headquartered in Milwaukee, the company employs more than 7,000 employees at its constituent companies throughout the world.