Otter Tail Corp. is a holding company, which engages in the energy, infrastructure, and production businesses. The company is headquartered in Fergus Falls, Minnesota and currently employs 2,133 full-time employees. The firm operates through three segments: Electric, Manufacturing and Plastics. The Electric segment includes the production, transmission, distribution and sale of electric energy in Minnesota, North Dakota and South Dakota by the Company. The Manufacturing segment consists of businesses in manufacturing activities, including contract machining, metal parts stamping, fabrication and painting, and production of plastic thermoformed horticultural containers, life science and industrial packaging, and material handling components. These businesses have manufacturing facilities in Georgia, Illinois and Minnesota. The Plastics segment consists of businesses producing PVC pipe at plants in North Dakota and Arizona. The PVC pipe is sold primarily in the western half of the United States and Canada.