Mueller Industries, Inc. engages in the manufacture of copper, brass, aluminum, and plastic products. The company is headquartered in Collierville, Tennessee and currently employs 5,137 full-time employees. The firm manufacture a range of products, including copper tube and fittings; line sets; PEX plastic tube and fittings; aluminum and brass forgings; aluminum impact extrusions; compressed gas valves; refrigeration valves and fittings; pressure vessels; coaxial heat exchangers; and insulated flexible duct systems. The company operates in the United States and in Canada, Mexico, Great Britain, South Korea, the Middle East and China. The company operates through three segments, which include Piping Systems segment, which is composed of Domestic Piping Systems Group, Great Lakes Copper, Heatlink Group, European Operations, Trading Group, Jungwoo-Mueller and Mueller Middle East; The Industrial Metals segment that is composed of Brass Rod, Impacts & Micro Gauge and Brass Value-Added Products, and Climate segment, which is composed of Refrigeration Products, Westermeyer, Turbotec, Flex Duct and Linesets, Inc.