With annual sales revenue of more than $55 billion, The Dow Chemical Company manufactures over 3,000 types of products. It has a work force of nearly 45,000 employees and operations in approximately 35 countries. The company and its subsidiaries are engaged in the infrastructure, electronics, chemicals, plastics, coatings, specialty materials, and health and agricultural science sectors. The Dow Chemical Company also manufactures performance products, such as epoxy, polyurethanes, emulsion polymers and oxygenated solvents. It has operations in North America, South America, Asia-Pacific, Europe, Africa and the Middle East. The company's subsidiary, Union Carbide Corporation, manufactures a variety of chemicals and polymers. The Dow Chemical Company markets its products under the STYROFOAM and Walocel brand names.