Continental Materials Corporation s principal activities are production and sales of construction materials and heating and air conditioning equipment. The company operates in the two business segments of construction materials and heating and air conditioning. The construction materials segment produces and sells ready mix concrete, construction aggregates and other building materials. The heating and air conditioning segment manufactures wall furnaces, console heaters, evaporative air coolers, fan coil and air handler product lines. In addition, it also conducts a real estate operation and the holding cost for certain mining interests in mining operations. In 2002, the company acquired McKinney Door and Hardware. Construction materials typically account for more than 50 percent of revenues while heating and air conditioning accounts for approximately 40 percent and other services a nominal percent. Continental Materials Corporation is headquartered in Chicago.