Announcement of Expiration of Tender Offer for Any and All 2026 Notes by CSN Resources S.A.

SAO PAULO, Dec. 5, 2023 /PRNewswire/ -- Companhia Siderúrgica Nacional ("CSN") (NYSE: SID) announced today that the cash tender offer (the "Tender Offer") by its subsidiary, CSN Resources S.A. ("CSN Resources"), for any and all of its outstanding US$300,000,000 in aggregate principal amount of 7.625% Senior Unsecured Guaranteed Notes due 2026 (the "Notes") (144A CUSIP / ISIN: 12644VAC2 / US12644VAC28 and Regulation S CUSIP / ISIN: L21779AD2 / USL21779AD28), fully, unconditionally and irrevocably guaranteed by CSN, expired today at 5:00 p.m., New York City time (the "Expiration Time"). At the Expiration Time, valid tenders had been received with respect to US$117,021,000 in aggregate principal amount of Notes.