 RALEIGH, N.C., June 21, 2021 GLOBE NEWSWIRE -- Martin Marietta Materials, Inc. NYSE:MLM Martin Marietta or the Company announced today the pricing of its offering of 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. The 2023 Notes will mature on July 15, 2023, will have an interest rate of 0.650 per annum and will be issued at 99.988 of par value. The 2031 Notes will mature on July 15, 2031, will have an interest rate of 2.400 per annum and will be issued at 99.937 of par value. The 2051 Notes will mature on July 15, 2051, will have an interest rate of 3.200 per annum and will be issued at 99.197 of par value. Interest on each series of Notes will be paid semiannually on January 15 and July 15, commencing January 15, 2022. The Notes will be sold pursuant to Martin Mariettas shelf registration statement, base prospectus and prospectus supplement on file with the Securities and Exchange Commission SEC. 