VULCAN MATERIALS COMMENTS ON DELAWARE SUPREME

COURT RULING IN FAVOR OF THE COMPANY

Court Upholds Delaware Chancery Court Decision to Enjoin Martin Marietta Materials from Prosecuting Proxy Contest and Exchange Offer for Vulcan

Birmingham, Alabama, May 31, 2012 — Vulcan Materials Company (NYSE: VMC) today issued the following statement on the decision by the Delaware Supreme Court to affirm the May 4, 2012 ruling of the Delaware Court of Chancery to enjoin Martin Marietta Materials (NYSE: MLM) for a period of four months from prosecuting a proxy contest, making an exchange or tender offer, or otherwise taking steps to acquire control of Vulcan shares or assets and from any further violations of two confidentiality agreements between the parties.

“We appreciate the Delaware Supreme Court’s careful consideration of this matter and are pleased with the Court’s ruling affirming the May 4th decision of the Delaware Court of Chancery.  Vulcan’s Board and management team are committed to enhancing long-term value for all shareholders, and we look forward to continuing to deliver on our growth strategy and cost savings initiatives.”

Wachtell, Lipton, Rosen & Katz is acting as legal advisor to Vulcan.  Goldman, Sachs & Co. and BofA Merrill Lynch are acting as financial advisors to Vulcan.

About Vulcan Materials Company

Vulcan Materials Company, a member of the S&P 500 index, is the nation’s largest producer of construction aggregates, a major producer of asphalt mix and concrete and a leading producer of cement in Florida.

ADDITIONAL INFORMATION

Vulcan has filed a definitive proxy statement and a WHITE proxy card with the SEC with respect to the 2012 Annual Meeting of Shareholders.  The definitive proxy statement and WHITE proxy card has been mailed to shareholders of Vulcan. Vulcan, its directors and certain of its executive officers may be deemed to be participants in the solicitation of proxies from

Vulcan shareholders in connection with the matters to be considered at the annual meeting. INVESTORS AND SECURITY HOLDERS OF VULCAN ARE URGED TO READ THE DEFINITIVE PROXY STATEMENT, ACCOMPANYING WHITE PROXY CARD AND OTHER DOCUMENTS FILED WITH THE SEC CAREFULLY IN THEIR ENTIRETY AS THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION.  Investors and security holders will be able to obtain free copies of these documents (when available) and other documents filed with the SEC by Vulcan through the website maintained by the SEC at http://www.sec.gov.

Detailed information regarding the identity of potential participants, and their direct or indirect interests, by security holdings or otherwise, is set forth in the definitive proxy statement and other materials filed with the SEC in connection with Vulcan’s 2012 Annual Meeting.  Information regarding the direct and indirect beneficial ownership of Vulcan’s directors and executive officers in Vulcan’s securities is included in their SEC filings on Forms 3, 4 and 5, and additional information can also be found in Vulcan’s Annual Report on Form 10-K for the year ended December 31, 2011, filed with the SEC on February 29, 2012, and its Quarterly Report on Form 10-Q  for the first quarter ended March 31, 2012, filed on May 2, 2012.  Shareholders will be able to obtain any proxy statement, any amendments or supplements to the proxy statement and other documents filed by Vulcan with the SEC for no charge at the SEC’s website at www.sec.gov. Copies will also be available at no charge under the “Investor Relations” tab of our corporate website at www.vulcanmaterials.com.

FORWARD-LOOKING STATEMENT DISCLAIMER

This document contains forward-looking statements.  Statements that are not historical fact, including statements about Vulcan’s beliefs and expectations, are forward-looking statements.  Generally, these statements relate to future financial performance, results of operations, business plans or strategies, projected or anticipated revenues, expenses, earnings (including EBITDA and other measures), dividend policy, shipment volumes, pricing, levels of capital expenditures, intended cost reductions and cost savings, anticipated profit improvements and/or planned divestitures and asset sales. These forward-looking statements are sometimes identified by the use of terms and phrases such as “believe,” “should,” “would,” “expect,” “project,” “estimate,” “anticipate,” “intend,” “plan,” “will,” “can,” “may” or similar expressions elsewhere in this document.  These statements are subject to numerous risks, uncertainties, and assumptions, including but not limited to general business conditions, competitive factors, pricing, energy costs, and other risks and uncertainties discussed in the reports Vulcan periodically files with the SEC.

Forward-looking statements are not guarantees of future performance and actual results, developments, and business decisions may vary significantly from those expressed in or implied by the forward-looking statements. The following risks related to Vulcan’s business, among others, could cause actual results to differ materially from those described in the forward-looking statements: risks that Vulcan’s intentions, plans and results with respect to cost reductions, profit enhancements and asset sales, as well as streamlining and other strategic actions adopted by Vulcan, will not be able to be realized to the desired degree or within the desired time period and that the results thereof will differ from those anticipated or desired; uncertainties as to the timing and valuations that may be realized or attainable with respect to intended asset sales; future events relating to Martin Marietta’s unsolicited offer to acquire Vulcan; those associated with general economic and business conditions; the timing and amount of federal, state and local

funding for infrastructure; the lack of a multi-year federal highway funding bill with an automatic funding mechanism; the reluctance of state departments of transportation to undertake federal highway projects without a reliable method of federal funding; the impact of a prolonged economic recession on Vulcan’s industry, business and financial condition and access to capital markets; changes in the level of spending for private residential and nonresidential construction; the highly competitive nature of the construction materials industry; the impact of future regulatory or legislative actions; the outcome of pending legal proceedings; pricing of Vulcan’s products; incurred and potential costs associated with Martin Marietta’s  unsolicited takeover attempt and proxy contest; weather and other natural phenomena; energy costs; costs of hydrocarbon-based raw materials; healthcare costs; the amount of long-term debt and interest expense incurred by Vulcan; changes in interest rates; the impact of Vulcan’s below investment grade debt rating on Vulcan’s cost of capital; volatility in pension plan asset values which may require cash contributions to the pension plans; the impact of environmental clean-up costs and other liabilities relating to previously divested businesses; Vulcan’s ability to secure and permit aggregates reserves in strategically located areas; Vulcan’s ability to manage and successfully integrate acquisitions; the potential of goodwill impairment; the potential impact of future legislation or regulations relating to climate change or greenhouse gas emissions or the definition of minerals; and other assumptions, risks and uncertainties detailed from time to time in the reports filed by Vulcan with the SEC. All forward-looking statements in this communication are qualified in their entirety by this cautionary statement.  Vulcan disclaims and does not undertake any obligation to update or revise any forward-looking statement in this document except as required by law. Vulcan notes that forward-looking statements made in connection with a tender offer are not subject to the safe harbors created by the Private Securities Litigation Reform Act of 1995.  Vulcan is not waiving any other defenses that may be available under applicable law.