0 Construction Materials Industry

Martin Marietta Materials is one of the United States' largest producer of construction aggregates (crushed stone, sand, and gravel). In 2019, Martin Marietta sold 191 million tons of aggregates. Martin Marietta's most important markets include Colorado, Florida, Georgia, Indiana, Iowa, Maryland, Nebraska, North Carolina, South Carolina, and Texas, accounting for most of its sales. The company also produces cement in Texas and uses its aggregates in its asphalt and ready-mixed concrete businesses. Martin's specialty product business produces magnesia-based chemical products and dolomitic lime.

AAON is a manufacturer of air-conditioning and heating equipment. The products include rooftop units, chillers, packaged outdoor mechanical rooms, air-handling units, makeup air units, energy-recovery units, condensing units, geothermal heat pumps, and self-contained units and coils. AAON's products serve the commercial and industrial new construction and replacement markets, primarily in North America.

Continental Materials Corp is a manufacturer of heating and cooling systems. The company's operating segment includes Heating, ventilation and air conditioning (HVAC); Doors and Construction Materials. It generates maximum revenue from the HVAC segment. The HVAC segment produces and sells a variety of products including wall furnaces, fan coils, evaporative coolers, boiler room equipment and dryer boxes and related accessories. Its Doors segment sells hollow metal and wood doors, door frames and related hardware, sliding door systems and electronic access and security systems. The Construction Materials segment offers a variety of construction related products including limestone, gravel, sand, steel rebar and consumable construction products.