May 14 (Reuters) - Companhia Siderurgica Nacional :
* BRAZIL’S CSN SAYS BOARD APPROVED SALE OF U.S. UNIT CSN STEEL - FILING
* BRAZILIAN STEELMAKER CSN EXPECTS TO CLOSE SALE OF U.S. UNIT TO STEEL DYNAMICS IN 90 DAYS- FILING
* BRAZIL’S CSN SAYS DEAL VALUE IS $400 MILLION, TO BE ADJUSTED BY WORKING CAPITAL OF $60 MILLION- FILING
* BRAZIL’S CSN SAYS SALE WILL REDUCE STEELMAKER’S NET DEBT BY 1.8 BILLION REAIS- FILING Source text for Eikon: Further company coverage: (Reporting by Tatiana Bautzer)