On July 2, 2021, Martin Marietta Materials, Inc. issued $700 million aggregate principal amount of 0.650% Senior Notes due 2023 (the “2023 Notes”), $900 million aggregate principal amount of 2.400% Senior Notes due 2031 (the “2031 Notes”) and $900 million aggregate principal amount of 3.200% Senior Notes due 2051 (the “2051 Notes” and, together with the 2023 Notes and the 2031 Notes, the “Notes”) pursuant to a base indenture, dated as of May 22, 2017 (the “Base Indenture”), as amended and supplemented from time to time, including by the Fourth Supplemental Indenture, dated as of July 2, 2021 (the “Fourth Supplemental Indenture” and, together with the Base Indenture, the “Indenture”) between Martin Marietta and Regions Bank, as trustee (the “Trustee”), governing the Notes. The 2023 Notes will mature on July 15, 2023 and will accrue interest at a rate of 0.650% per annum. The 2031 Notes will mature on July 15, 2031 and will accrue interest at a rate of 2.400% per annum. The 2051 Notes will mature on July 15, 2051 and will accrue interest at a rate of 3.200% per annum. Interest on each series of the Notes will be paid semiannually on the 15th day of January and July, commencing January 15, 2022. The Notes are Martin Marietta’s senior unsecured obligations and rank equally in right of payment with all of its existing and future senior indebtedness and will rank senior in right of payment to all of its future subordinated indebtedness. The Notes are effectively subordinated to all of Martin Marietta’s existing and future secured indebtedness to the extent of the value of the assets securing such indebtedness. The Notes are not guaranteed by any of Martin Marietta’s subsidiaries and are structurally subordinated to all of the existing and future indebtedness and other liabilities (including trade accounts payable) and preferred equity of Martin Marietta’s subsidiaries. The net proceeds of the 2031 Notes and the 2051 Notes are expected to be used, together with cash on hand, to pay the consideration for Martin Marietta’s previously announced acquisition of the Lehigh West Region Business (the “Acquisition”) and to pay related fees and expenses. The net proceeds of the 2023 Notes are expected to be used for general corporate purposes, which may include funding acquisitions (including without limitation the Acquisition) or repaying indebtedness.