OREANDA-NEWS. Companhia Sider?rgica Nacional (CSN) (BM&FBOVESPA: CSNA3) (NYSE: SID) announces today its consolidated results for the first quarter of 2015 (1Q15), which are presented in Brazilian Reais and in accordance with International Financial Reporting Standards (IFRS) issued by the International Accounting Standards Board (IASB), and with Brazilian accounting practices, which are fully convergent with the international accounting norms issued by the Accounting Pronouncements Committee (CPC) and approved by the Brazilian Securities and Exchange Commission (CVM), pursuant to CVM Instruction 485 of September 1, 2010. The comments herein refer to the Company’s consolidated results and comparisons refer to the fourth quarter of 2014 (4Q14) and the first quarter of 2014 (1Q14), unless otherwise stated. On March 31, 2015, the Real/US Dollar exchange rate was R\$3.208.