Basis of Interim Presentation

6 Months Ended

Jun. 29, 2013

Basis of Interim Presentation

1. BASIS OF INTERIM PRESENTATION: The information furnished in Item I reflects all adjustments which are, in the opinion of management, necessary to a fair statement of the results for the interim periods and are of a normal and recurring nature unless otherwise noted. The information furnished has not been audited; however, the December 31, 2012 condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America. The unaudited condensed consolidated financial statements in this Item 1 should be read in conjunction with the consolidated financial statements and the notes thereto included in Nucor’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012.

Recently Adopted Accounting Pronouncements — In the first quarter of 2013, Nucor adopted new accounting guidance requiring additional disclosures on reclassifications from accumulated other comprehensive income into net income. The new accounting guidance requires entities to report either parenthetically on the face of the financial statements or in the notes to the financial statements these reclassifications for each financial statement line item. Nucor elected to report this information within the notes to the financial statements. This new guidance only impacts disclosures and has no impact on Nucor’s consolidated financial position, results of operations or cash flows.

In the first quarter of 2014, Nucor will adopt new accounting guidance which requires unrecognized tax benefits to be presented as a decrease in net operating loss, similar tax loss or tax credit carryforward if certain criteria are met. The new guidance may affect balance sheet classification of certain unrecognized tax benefits and will have no impact on Nucor’s consolidated results of operations or cash flows.