<SEC-DOCUMENT>0001564590-18-030932-index.html : 20181214 <SEC-HEADER>0001564590-18-030932.hdr.sgml : 20181214 <ACCEPTANCE-DATETIME>20181214154812 ACCESSION NUMBER: 0001564590-18-030932 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20181210 ITEM INFORMATION: Mine Safety - Reporting of Shutdowns and Patterns of Violations FILED AS OF DATE: 20181214 DATE AS OF CHANGE: 20181214 FILER: COMPANY DATA: COMPANY CONFORMED NAME: MARTIN MARIETTA MATERIALS INC CENTRAL INDEX KEY: 0000916076 STANDARD INDUSTRIAL CLASSIFICATION: MINING, QUARRYING OF NONMETALLIC MINERALS (NO FUELS) [1400] IRS NUMBER: 561848578 STATE OF INCORPORATION: NC FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-12744 FILM NUMBER: 181235539 BUSINESS ADDRESS: STREET 1: 2710 WYCLIFF ROAD CITY: RALEIGH STATE: NC ZIP: 27607 BUSINESS PHONE: 919-781-4550 MAIL ADDRESS: STREET 1: 2710 WYCLIFF ROAD CITY: RALEIGH STATE: NC ZIP: 27607 </SEC-HEADER> <DOCUMENT> <TYPE>8-K <SEQUENCE>1 <FILENAME>mlm-8k_20181214.htm <DESCRIPTION>8-K <TEXT> Document 1 - file: mlm-8k_20181214.htm
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