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Centex Corporation forms Centex Construction Products. Construction and start-up of the Nevada Cement plant, and purchase of Centex Materials take place


Mathews Readymix is purchased. Illinois Cement Company joint-venture is formed, the plant start-up occurs two years later. Centex starts construction of a new cement plant in Buda, TX.


A gypsum plant in Albuquerque, NM is purchased, forming Centex American Gypsum. The Buda, TX cement plant expands to an annual capacity of over 1 million tons. Cement plant in Laramie, WY is purchased, becoming Mountain Cement Company. Texas Lehigh Cement Company joint venture is formed, Centex retains 50% ownership.


Start up of Centex American Gypsum's second wallboard plant in Bernalillo, NM. Initial Public Offering of 49% of Centex Construction Product's stock to the public. Mountain Cement's second kiln starts up. Purchase of American Gypsum's third plant in Eagle, CO., with a 60% expansion added two years later.


At the close of FY2000, Centex Construction Products (CXP) reports its sixth consecutive record year. CXP acquires a gypsum wallboard plant, a short line railroad, three recycled paper fiber collections sites and a lightweight paper mill in Lawton, OK (Republic Paperboard Company), making CXP the nation’s fourth largest gypsum wallboard producer. Centex Corporation spins-off its 65% interest in CXP, upon completion, the company’s new name is Eagle Materials Inc. and trades on the NYSE under the symbol “EXP”. Eagle Materials purchases remaining 50% interest in the Illinois Cement Company joint venture. Eagle Materials’ board of directors approve a $65 million expansion and modernization project for Illinois Cement Company plant in LaSalle, IL. American Gypsum announces plans to build a new high-speed, environmentally friendly gypsum wallboard plant near Georgetown, SC -- construction begins late 2005. Eagle Materials’ stock performance is strong and a 3-for-1 stock split is announce in January 2006. Expansion at Mountain and Illinois Cement plants increased capacity to nearly 3 million tons. Texas Lehigh Cement increases its cement capacity with an investment in Houston Cement Import Terminals. Eagle Materials proudly reports multiple record highs for annual and quarterly revenues during 2004-2007. American Gypsum’s Georgetown, SC wallboard plant opens for production in January 2008. In mid-2008 EXP sees decline in earnings as residential activity weakens. American Gypsum's gypsum wallboard products attain GREENGUARD Indoor Air Quality® status and GREENGUARD Children and SchoolsSM certification. American Gypsum’s Bernalillo, NM gypsum wallboard plant is idled at the end of 2009.



EXP’s joint venture, Texas Lehigh Cement, is recognized as a 2010 Texas Environmental Excellence Award winner for their pioneering work with using alternative fuels from recycled waste streams to heat cement kilns. American Gypsum’s complete line of M-Bloc® mold and moisture resistant gypsum panel products passes the toughest mold resistance test, with the best possible score. EXP continues to remain profitable each year despite operating in the most challenging construction market of a lifetime. American Gypsum successfully develops a line of lightweight gypsum wallboard panels, making installation faster and easier. In November 2012, EXP acquires two Lafarge cement plants and related assets, which increases its cement production capacity by 60% and expands its market reach into the south central US -- the transaction includes two cement plants, eight ready-mix concrete plants, two aggregates quarries and six distribution terminals. During the first half of 2013, EXP joins the S&P MidCap 400. In 2014, EXP begins the first shipments of raw sand from the company's mine in Utica, Illinois to its processing facility in Corpus Christi, Texas. Late that same year, EXP acquires CRS Proppants LLC, which includes a northern white frac sand mine and processing facility in Wisconsin as well as distribution assets. In late 2016, EXP acquires a cement plant and related assets, now known as Fairborn Cement Company. Mid-2019, the company announces that its Board of Directors approves plans to separate its Heavy Materials and Light Materials business into two independent, publicly traded corporations in a tax-free spin-off to EXP shareholders. In August 2019, the company acquired 3-D Concrete in Northern Nevada.



In Spring 2020, Eagle Materials announced that plans to separate its heavy materials and light materials are put on hold due to uncertainties created by COVID-19. Also in early 2020, EXP acquired the Kosmos Kentucky cement plant, along with seven distribution terminals and substantial raw material reserves.