Exhibit 99.1 News Release Nucor Reports Results for the Third Quarter of 2025 Third Quarter of 2025 Highlights • Net earnings attributable to Nucor stockholders of $607 million, or $2.63 per diluted share • Net sales of $8.52 billion • Net earnings before noncontrolling interests of $683 million; EBITDA of $1.27 billion CHARLOTTE, N.C. – October 27, 2025 - Nucor Corporation (NYSE: NUE) today announced consolidated net earnings attributable to Nucor stockholders of $607 million, or $2.63 per diluted share, for the third quarter of 2025. By comparison, Nucor reported consolidated net earnings attributable to Nucor stockholders of $603 million, or $2.60 per diluted share, for the second quarter of 2025 and $250 million, or $1.05 per diluted share, for the third quarter of 2024. “We continue to execute on Nucor’s strategy of growing our core steelmaking capabilities, while expanding into downstream, steel-adjacent businesses,” said Leon Topalian, Nucor’s Chair, President and Chief Executive Officer. “During the third quarter, we began ramping up production at two recently completed bar mill projects, advanced our sheet steel production and coating projects, and commenced pole production at our Alabama Towers & Structures facility. Throughout a period of capital investment, Nucor continues to have the strongest balance sheet of any major steel producer in North America and has returned nearly $1 billion to shareholders year-to-date, representing more than 70% of net earnings through the third quarter.” Earnings (loss) before income taxes and noncontrolling interests by segment (in millions) Three Months (13 Weeks) Ended Nine Months (39 Weeks) Ended October 4, 2025 July 5, 2025 September 28, 2024 October 4, 2025 September 28, 2024 Steel mills $ 793 $ 843 $ 309 $ 1,867 $ 2,057 Steel products 319 392 314 999 1,267 Raw materials 43 57 (66 ) 129 (17 ) Corporate/eliminations (272 ) (393 ) (168 ) (928 ) (795 ) $ 883 $ 899 $ 389 $ 2,067 $ 2,512 Analysis of Third Quarter of 2025 Results Compared to the Second Quarter of 2025 Earnings in the steel mills segment decreased in the third quarter of 2025 primarily due to slightly lower volumes coupled with margin compression. The decrease in the steel products segment’s earnings in the third quarter was due to higher average costs per ton on stable average realized pricing and moderately higher volumes. The raw materials segment had lower earnings in the third quarter of 2025 primarily due to lower realized pricing in our direct reduced iron and scrap processing operations. Third quarter of 2025 consolidated net earnings attributable to Nucor stockholders was positively impacted by lower profit elimination related to intracompany sales and a decrease in the amount of earnings attributable to noncontrolling interests. Page 1 of 10 Nucor Executive Offices: 1915 Rexford Road, Charlotte, North Carolina 28211 Phone 704-366-7000 Fax 704-362-4208 www.nucor.com Nucor Reports Results for the Third Quarter of 2025 (Continued) Financial Strength At the end of the third quarter of 2025, Nucor had $2.75 billion in cash and cash equivalents and short-term investments on hand. The Company’s $2.25 billion revolving credit facility remains undrawn and does not expire until March 2030. The Company continues to have the strongest credit ratings in the North American steel sector (A-/A-/A3) with stable outlooks at Standard & Poor’s, Fitch Ratings and Moody’s, respectively. During September 2025, Moody’s upgraded Nucor’s long-term credit ratings to A3 from Baa1 with a stable outlook. Commitment to Returning Capital to Stockholders During the third quarter of 2025, Nucor repurchased approximately 0.7 million shares of its common stock at an average price of $140.46 per share (approximately 4.8 million shares during the first nine months of 2025 at an average price of $126.26 per share). As of October 4, 2025, Nucor had approximately $506 million remaining authorized and available for repurchases under its share repurchase program. This share repurchase authorization is discretionary and has no scheduled expiration date. On September 4, 2025, Nucor’s Board of Directors declared a cash dividend of $0.55 per share. This cash dividend is payable on November 10, 2025, to stockholders of record as of September 30, 2025 and is Nucor’s 210 th consecutive quarterly cash dividend. Fourth Quarter of 2025 Outlook Compared to the Third Quarter of 2025 We expect earnings in the fourth quarter of 2025 to be lower than the third quarter of 2025. In the steel mills segment, the expected decrease is primarily due to lower overall volumes, along with lower average selling prices in our sheet mills. In the steel products segment, the expected decrease is mainly due to lower volumes. In the raw materials segment, the expected decrease is due to lower realized pricing as well as planned outages at our direct reduced iron facilities. Earnings Conference Call An earnings call is scheduled for October 28, 2025 at 10:00 a.m. Eastern Time to review Nucor’s third quarter of 2025 financial results and provide a business update. The call can be accessed via webcast from the Investor Relations section of Nucor’s website (nucor.com/investors). A presentation with supplemental information to accompany the call has been posted to Nucor’s Investor Relations website. A playback of the webcast will be posted to the same site within one day of the live event. About Nucor Nucor and its affiliates are manufacturers of steel and steel products, with operating facilities in the United States, Canada and Mexico. Products produced include: carbon and alloy steel — in bars, beams, sheet and plate; hollow structural section tubing; electrical conduit; steel racking; steel piling; steel joists and joist girders; steel deck; fabricated concrete reinforcing steel; cold finished steel; precision castings; steel fasteners; metal building systems; insulated metal panels; overhead doors; steel grating; wire and wire mesh; and utility structures. Nucor, through The David J. Joseph Company and its affiliates, also brokers ferrous and nonferrous metals, pig iron and hot briquetted iron / direct reduced iron; supplies ferro-alloys; and processes ferrous and nonferrous scrap. Nucor is North America’s largest recycler. Page 2 of 10 Nucor Executive Offices: 1915 Rexford Road, Charlotte, North Carolina 28211 Phone 704-366-7000 Fax 704-362-4208 www.nucor.com Nucor Reports Results for the Third Quarter of 2025 (Continued) Non-GAAP Financial Measures The Company uses certain non-GAAP (Generally Accepted Accounting Principles) financial measures in this news release, including EBITDA. Generally, a non-GAAP financial measure is a numerical measure of a company’s performance or financial position that either excludes or includes amounts that are not normally excluded or included in the most directly comparable financial measure calculated and presented in accordance with GAAP. We define EBITDA as net earnings before noncontrolling interests, adding back the following items: interest expense (income), net; provision for income taxes; losses and impairments of assets; depreciation; and amortization. Please note that other companies might define their non-GAAP financial measures differently than we do. Management presents the non-GAAP financial measure of EBITDA in this news release because it considers it to be an important supplemental measure of performance. Management believes that this non-GAAP financial measure provides additional insight for analysts and investors evaluating the Company’s financial and operational performance by providing a consistent basis of comparison across periods. Forward-Looking Statements Certain statements contained in this news release are “forward-looking statements” that involve risks and uncertainties which we expect will or may occur in the future and may impact our business, financial condition and results of operations. The words “anticipate,” “believe,” “expect,” “intend,” “project,” “may,” “will,” “should,” “could” and similar expressions are intended to identify those forward-looking statements. These forward-looking statements reflect the Company’s best judgment based on current information, and, although we base these statements on circumstances that we believe to be reasonable when made, there can be no assurance that future events will not affect the accuracy of such forward-looking information. As such, the forward-looking statements are not guarantees of future performance, and actual results may vary materially from the projected results and expectations discussed in this news release. Factors that might cause the Company’s actual results to differ materially from those anticipated in forward-looking statements include, but are not limited to: (1) competitive pressure on sales and pricing, including pressure from imports and substitute materials; (2) U.S. and foreign trade policies affecting steel imports or exports; (3) the sensitivity of the results of our operations to general market conditions, and in particular, prevailing market steel prices and changes in the supply and cost of raw materials, including pig iron, iron ore and scrap steel; (4) the availability and cost of electricity and natural gas, which could negatively affect our cost of steel production or result in a delay or cancellation of existing or future drilling within our natural gas drilling programs; (5) critical equipment failures and business interruptions; (6) market demand for steel products, which, in the case of many of our products, is driven by the level of nonresidential construction activity in the United States; (7) impairment in the recorded value of inventory, equity investments, fixed assets, goodwill or other long-lived assets; (8) uncertainties and volatility surrounding the global economy, including excess world capacity for steel production, inflation and interest rate changes; (9) fluctuations in currency conversion rates; (10) significant changes in laws or government regulations affecting environmental compliance, including legislation and regulations that result in greater regulation of greenhouse gas emissions that could increase our energy costs, capital expenditures and operating costs or cause one or more of our permits to be revoked or make it more difficult to obtain permit modifications; (11) the cyclical nature of the steel industry; (12) capital investments and their impact on our performance; (13) our safety performance; (14) our ability to Page 3 of 10 Nucor Executive Offices: 1915 Rexford Road, Charlotte, North Carolina 28211 Phone 704-366-7000 Fax 704-362-4208 www.nucor.com Nucor Reports Results for the Third Quarter of 2025 (Continued) integrate businesses we acquire; and (15) the impact of any pandemic or public health situation. These and other factors are discussed in Nucor’s regulatory filings with the United States Securities and Exchange Commission, including those in “Item 1A. Risk Factors” of Nucor’s Annual Report on Form 10-K for the year ended December 31, 2024. The forward-looking statements contained in this news release speak only as of this date, and Nucor does not assume any obligation to update them, except as may be required by applicable law. Contact Information For Investor/Analyst Inquiries – Chris Jacobi, chris.jacobi@nucor.com, or Paul Donnelly, paul.donnelly@nucor.com For Media Inquiries – Katherine Miller, katherine.miller@nucor.com Page 4 of 10 Nucor Executive Offices: 1915 Rexford Road, Charlotte, North Carolina 28211 Phone 704-366-7000 Fax 704-362-4208 www.nucor.com Nucor Reports Results for the Third Quarter of 2025 (Continued) Consolidated Financial Statements Condensed Consolidated Statements of Earnings (Unaudited) (In millions, except per share data) Three Months (13 Weeks) Ended Nine Months (39 Weeks) Ended October 4, 2025 July 5, 2025 September 28, 2024 October 4, 2025 September 28, 2024 Net sales $ 8,521 $ 8,456 $ 7,444 $ 24,807 $ 23,658 Costs, expenses and other: Cost of products sold 7,333 7,233 6,686 21,791 20,183 Marketing, administrative and other expenses 300 304 244 885 883 Equity in earnings of unconsolidated affiliates (10 ) (10 ) (5 ) (24 ) (24 ) Losses and impairments of assets — 11 123 40 137 Interest expense (income), net 15 19 7 48 (33 ) 7,638 7,557 7,055 22,740 21,146 Earnings before income taxes and noncontrolling interests 883 899 389 2,067 2,512 Provision for income taxes 200 193 86 452 538 Net earnings before noncontrolling interests 683 706 303 1,615 1,974 Earnings attributable to noncontrolling interests 76 103 53 249 234 Net earnings attributable to Nucor stockholders $ 607 $ 603 $ 250 $ 1,366 $ 1,740 Net earnings per share: Basic $ 2.63 $ 2.60 $ 1.05 $ 5.89 $ 7.23 Diluted $ 2.63 $ 2.60 $ 1.05 $ 5.88 $ 7.22 Average shares outstanding: Basic 229.9 230.6 236.5 231.1 239.7 Diluted 230.2 230.8 236.8 231.4 239.8 Page 5 of 10 Nucor Executive Offices: 1915 Rexford Road, Charlotte, North Carolina 28211 Phone 704-366-7000 Fax 704-362-4208 www.nucor.com Nucor Reports Results for the Third Quarter of 2025 (Continued) Condensed Consolidated Balance Sheets (Unaudited) (In millions) October 4, 2025 December 31, 2024 ASSETS Current assets: Cash and cash equivalents $ 2,221 $ 3,558 Short-term investments 524 581 Accounts receivable, net 3,288 2,675 Inventories, net 5,393 5,106 Other current assets 382 555 Total current assets 11,808 12,475 Property, plant and equipment, net 14,821 13,243 Goodwill 4,294 4,288 Other intangible assets, net 2,943 3,134 Other assets 910 800 Total assets $ 34,776 $ 33,940 LIABILITIES Current liabilities: Short-term debt $ 136 $ 225 Current portion of long-term debt and finance lease obligations 31 1,042 Accounts payable 2,145 1,832 Salaries, wages and related accruals 899 903 Accrued expenses and other current liabilities 1,046 975 Total current liabilities 4,257 4,977 Long-term debt and finance lease obligations due after one year 6,686 5,683 Deferred credits and other liabilities 1,902 1,863 Total liabilities 12,845 12,523 Commitments and contingencies EQUITY Nucor stockholders’ equity: Common stock 152 152 Additional paid-in capital 2,233 2,223 Retained earnings 31,255 30,271 Accumulated other comprehensive loss, net of income taxes (189 ) (208 ) Treasury stock (12,681 ) (12,144 ) Total Nucor stockholders’ equity 20,770 20,294 Noncontrolling interests 1,161 1,123 Total equity 21,931 21,417 Total liabilities and equity $ 34,776 $ 33,940 Page 6 of 10 Nucor Executive Offices: 1915 Rexford Road, Charlotte, North Carolina 28211 Phone 704-366-7000 Fax 704-362-4208 www.nucor.com Nucor Reports Results for the Third Quarter of 2025 (Continued) Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Nine Months (39 Weeks) Ended October 4, 2025 September 28, 2024 Operating activities: Net earnings before noncontrolling interests $ 1,615 $ 1,974 Adjustments: Depreciation 910 809 Amortization 191 189 Impairment of assets 20 137 Stock-based compensation 102 114 Deferred income taxes 2 (92 ) Distributions from affiliates 6 8 Equity in earnings of unconsolidated affiliates (24 ) (24 ) Changes in assets and liabilities (exclusive of acquisitions and dispositions): Accounts receivable (614 ) 47 Inventories (295 ) 496 Accounts payable 296 (207 ) Federal income taxes 177 17 Salaries, wages and related accruals 20 (314 ) Other operating activities 29 92 Cash provided by operating activities 2,435 3,246 Investing activities: Capital expenditures (2,620 ) (2,294 ) Investment in and advances to affiliates (1 ) — Sale of business — 1 Disposition of plant and equipment 42 12 Acquisitions (net of cash acquired) — (672 ) Purchases of investments (872 ) (1,037 ) Proceeds from the sale of investments 938 1,210 Other investing activities 4 10 Cash used in investing activities (2,509 ) (2,770 ) Financing activities: Net change in short-term debt (89 ) 95 Repayment of long-term debt (1,012 ) (5 ) Bond issuance costs (9 ) — Proceeds from issuance of long-term debt, net of discount 997 — Proceeds from exercise of stock options 1 3 Payment of tax withholdings on certain stock-based compensation (32 ) (50 ) Distributions to noncontrolling interests (231 ) (333 ) Cash dividends (385 ) (394 ) Acquisition of treasury stock (600 ) (1,901 ) Proceeds from government incentives 77 — Other financing activities 14 (12 ) Cash used in financing activities (1,269 ) (2,597 ) Effect of exchange rate changes on cash 6 (3 ) Decrease in cash and cash equivalents (1,337 ) (2,124 ) Cash and cash equivalents - beginning of year 3,558 6,387 Cash and cash equivalents - end of nine months $ 2,221 $ 4,263 Non-cash investing activity: Change in accrued plant and equipment purchases $ 14 $ 70 Page 7 of 10 Nucor Executive Offices: 1915 Rexford Road, Charlotte, North Carolina 28211 Phone 704-366-7000 Fax 704-362-4208 www.nucor.com Nucor Reports Results for the Third Quarter of 2025 (Continued) Select Financial and Operational Data (Dollars in millions, tons in thousands, per unit amounts as noted) Three Months (13 Weeks) Ended Nine Months (39 Weeks) Ended Oct. 4, 2025 July 5, 2025 % Change Sep. 28, 2024 Year Ago % Change Oct. 4, 2025 Sep. 28, 2024 % Change Consolidated Financial & Operational Data Net Sales $ 8,521 $ 8,456 1 % $ 7,444 14 % $ 24,807 $ 23,658 5 % External Average Sales Price per Ton $ 1,258 $ 1,240 1 % $ 1,201 5 % $ 1,215 $ 1,265 -4 % Sales Tons to External Customers 6,774 6,820 -1 % 6,196 9 % 20,424 18,709 9 % Pre-Operating & Start-Up Costs $ 103 $ 136 -24 % $ 168 -39 % $ 408 $ 430 -5 % Pre-Operating & Start-Up Costs per Diluted Share $ 0.34 $ 0.45 $ 0.54 $ 1.34 $ 1.36 Number of Days in Period 91 91 91 277 272 Steel Mills Segment Data Total Shipments 6,428 6,474 -1 % 5,719 12 % 19,365 17,476 11 % Sales Tons to External Customers 4,976 5,044 -1 % 4,607 8 % 15,246 13,900 10 % Percentage of Sales to Internal Customers 23 % 22 % 19 % 21 % 20 % External Average Sales Price per Ton $ 1,038 $ 1,041 — $ 967 7 % $ 1,005 $ 1,042 -4 % Average Scrap/Scrap Substitute Cost per Gross Ton $ 391 $ 403 -3 % $ 378 3 % $ 396 $ 399 -1 % Utilization 85 % 85 % 75 % 83 % 77 % Steel Products Segment Data Sales Tons to External Customers 1,183 1,141 4 % 1,011 17 % 3,372 3,050 11 % Average Sales Price per Ton $ 2,358 $ 2,331 1 % $ 2,469 -4 % $ 2,329 $ 2,530 -8 % Page 8 of 10 Nucor Executive Offices: 1915 Rexford Road, Charlotte, North Carolina 28211 Phone 704-366-7000 Fax 704-362-4208 www.nucor.com Nucor Reports Results for the Third Quarter of 2025 (Continued) Tonnage Data (in thousands) Three Months (13 Weeks) Ended Nine Months (39 Weeks) Ended Oct. 4, 2025 July 5, 2025 % Change Sep. 28, 2024 Year Ago % Change Oct. 4, 2025 Sep. 28, 2024 % Change Steel mills total shipments: Sheet 3,030 3,057 -1 % 2,837 7 % 9,068 8,680 4 % Bars 2,190 2,148 2 % 1,926 14 % 6,628 5,843 13 % Structural 595 635 -6 % 493 21 % 1,807 1,555 16 % Plate 594 606 -2 % 435 37 % 1,777 1,295 37 % Other 19 28 -32 % 28 -32 % 85 103 -17 % 6,428 6,474 -1 % 5,719 12 % 19,365 17,476 11 % Sales tons to outside customers: Steel mills 4,976 5,044 -1 % 4,607 8 % 15,246 13,900 10 % Joist and deck 254 217 17 % 169 50 % 653 534 22 % Rebar fabrication products 356 306 16 % 278 28 % 909 781 16 % Tubular products 206 243 -15 % 213 -3 % 719 635 13 % Building Systems 62 64 -3 % 60 3 % 174 181 -4 % Other steel products 305 311 -2 % 291 5 % 917 919 0 % Raw materials 615 635 -3 % 578 6 % 1,806 1,759 3 % 6,774 6,820 -1 % 6,196 9 % 20,424 18,709 9 % Page 9 of 10 Nucor Executive Offices: 1915 Rexford Road, Charlotte, North Carolina 28211 Phone 704-366-7000 Fax 704-362-4208 www.nucor.com Nucor Reports Results for the Third Quarter of 2025 (Continued) Non-GAAP Financial Measures Reconciliation of EBITDA (Unaudited) (In millions) Three Months (13 Weeks) Ended Nine Months (39 Weeks) Ended Oct. 4, 2025 July 5, 2025 Sept. 28, 2024 Oct. 4, 2025 Sept. 28, 2024 Net earnings before noncontrolling interests $ 683 $ 706 $ 303 $ 1,615 $ 1,974 Depreciation 304 303 281 910 809 Amortization 63 63 69 191 189 Losses and impairments of assets — 11 123 40 137 Interest expense (income), net 15 19 7 48 (33 ) Provision for income taxes 200 193 86 452 538 EBITDA $ 1,265 $ 1,295 $ 869 $ 3,256 $ 3,614 Page 10 of 10 Nucor Executive Offices: 1915 Rexford Road, Charlotte, North Carolina 28211 Phone 704-366-7000 Fax 704-362-4208 www.nucor.com

the item shown at left

other guidance in this release

Text is the filed exhibit, verbatim.