<SEC-DOCUMENT>0001292814-18-000345-index.html : 20180209 <SEC-HEADER>0001292814-18-000345.hdr.sgml : 20180209 <ACCEPTANCE-DATETIME>20180208201923 ACCESSION NUMBER: 0001292814-18-000345 CONFORMED SUBMISSION TYPE: 6-K PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20180331 FILED AS OF DATE: 20180209 DATE AS OF CHANGE: 20180208 FILER: COMPANY DATA: COMPANY CONFORMED NAME: NATIONAL STEEL CO CENTRAL INDEX KEY: 0001049659 STANDARD INDUSTRIAL CLASSIFICATION: STEEL WORKS, BLAST FURNACES & ROLLING & FINISHING MILLS [3310] IRS NUMBER: 000000000 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 6-K SEC ACT: 1934 Act SEC FILE NUMBER: 001-14732 FILM NUMBER: 18587306 BUSINESS ADDRESS: STREET 1: RUA LAURO MULLER STREET 2: 116 36 ANDAR CITY: RIO DE JANEIRO RJ BR STATE: D5 ZIP: 00000 </SEC-HEADER> <DOCUMENT> <TYPE>6-K <SEQUENCE>1 <FILENAME>sid20180208_6k.htm <DESCRIPTION>6-K <TEXT> Document 1 - file: sid20180208_6k.htm
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