EXHIBIT 99.1 Exhibit 99.1 Press Release April 20, 2026 7575 W. Jefferson Blvd. Fort Wayne, IN 46804 Steel Dynamics Reports First Quarter 2026 Results FORT WAYNE, INDIANA, April 20, 2026 / PRNewswire / First Quarter 2026 Performance Highlights: § Record steel shipments of 3.6 million tons § Continued commissioning and increased production from aluminum flat rolled sheet operations § Net sales of $5.2 billion, operating income of $538 million, and net income of $403 million § Adjusted EBITDA of $700 million and cash flow from operations of $148 million, which was reduced by the annual companywide retirement profit-sharing distribution of $120 million § First quarter 2026 cash dividend increase of six percent Steel Dynamics, Inc. (NASDAQ/GS: STLD) today announced first quarter 2026 financial results. The company reported first quarter 2026 net sales of $5.2 billion and net income of $403 million, or $2.78 per diluted share. Comparatively, the company’s sequential fourth quarter 2025 net income was $266 million, or $1.82 per diluted share and prior year first quarter net income was $217 million, or $1.44 per diluted share. “The teams executed well, delivering a strong first quarter 2026 performance across all of our platforms, with operating income increasing $228 million, or 73 percent,” said Mark D. Millett, Chairman and Chief Executive Officer. “The improvement in earnings was driven by record steel shipments combined with higher steel prices. Our three-year after-tax return-on-invested capital of 13 percent is a testament to our ongoing high-return capital allocation execution. We are growing, returning capital to shareholders, and maintaining strong returns with best-in-class performance compared to domestic manufacturers. “Underlying steel demand strengthened during the first quarter 2026, as customer orders rebounded and backlogs increased across our steel and steel fabrication operations,” said Millett. “Steel prices continued to improve, and lead times extended. Additionally, value- added flat rolled steel margins expanded from fourth quarter 2025 lows. We are seeing an improved steel market environment, supported by domestic trade actions, manufacturing onshoring, infrastructure program funding, and the increasing regionalization of supply chains in the United States. Long product steel demand remains very strong, especially for structural steel and railroad rail. Looking ahead, we expect to benefit from strong demand across our platforms. “The aluminum team is continuing with the successful commissioning and startup of our Columbus, Mississippi aluminum flat rolled products mill,” continued Millett. “The teams successfully produced finished products for the industrial and beverage can sectors, receiving product qualifications from numerous can sheet consumers and additional qualifications are ongoing. They also produced and received qualifications for aluminum hot band for use in automotive applications and are currently in the process of qualifying automotive quality finished products from our first recently operational continuous anneal and solution heat treat (CASH) line. Alongside our additional investments throughout the company, aluminum provides an exciting avenue for our ongoing growth.” First Quarter 2026 Comments First quarter 2026 operating income for the company’s steel operations was $557 million, or 73 percent higher than sequential fourth quarter results, due to record shipments and metal spread expansion across the platform, as steel pricing increased more than ferrous scrap costs. The first quarter 2026 average external product selling price for the company’s steel operations increased $86 sequentially to $1,193 per ton. The average ferrous scrap cost per ton melted at the company’s steel mills increased $22 sequentially to $396 per ton. The energy, non-residential construction, automotive, and industrial sectors led steel demand in the quarter. Flat rolled steel pricing has rebounded from the recent lows experienced in the second half 2025, and steel producer lead times are at strong levels. Compared to sequential fourth quarter results, first quarter 2026 operating income from the company’s metals recycling operations increased 155 percent to $47 million, driven by higher ferrous and nonferrous average selling values. Shipments were marginally lower, as scrap flows were negatively impacted by winter weather conditions in portions of January and February. The company’s steel fabrication operations achieved operating income of $90 million in the first quarter 2026, steady with fourth quarter sequential results, as higher shipments were offset by metal spread compression primarily related to increased steel raw material input costs. Customer order activity has significantly increased since the end of 2025, with the customer order backlog over 38 percent higher than a year ago and extending through the third quarter and into October 2026. Improved demand was supported largely by the commercial, data center, manufacturing, warehouse, and healthcare sectors. Further, the accelerated announcements related to meaningful domestic investments in manufacturing and increased onshoring, coupled with the U.S. infrastructure program, are expected to positively impact demand for not only steel joist and deck products, but also for flat rolled and long product steel. First quarter 2026 operating losses associated with the continued construction and startup of the company’s aluminum operations in the U.S. and Mexico were $65 million, or $17 million higher than fourth quarter sequential results. Aluminum flat rolled finished product shipments increased from 14,600 metric tons in the sequential fourth quarter to 22,500 metric tons in the first quarter 2026. Operating costs were significantly higher in January, as the team experienced normal startup issues, necessitating a temporary pause in operations and the write-off of some inventory. The issues were resolved and the company believes both shipments and earnings will increase sharply in the second quarter 2026. Demand for aluminum flat rolled products across the company’s consumer sectors remains strong, with the supply deficit growing. T he company generated cash flow from operations of $148 million during the first quarter 2026, after funding the annual companywide retirement profit-sharing distribution of $120 million. Working capital (excluding profit-sharing and income taxes) increased $413 million in the first quarter, as product pricing and demand improved across the business and the aluminum operations continued to ramp. The company also invested $138 million in capital investments, paid cash dividends of $72 million, and repurchased $115 million of its outstanding common stock, while maintaining strong liquidity of $2.0 billion as of March 31, 2026. Outlook “We remain constructive that market conditions are in place for domestic steel and aluminum consumption to be strong through 2026 and into the following years,” said Millett. “Customer optimism, order entry activity, and pricing have been improving across our business. Additionally, discussions with our customers further underscore the growing importance of lower-carbon, domestically produced steel and aluminum products, positioning our businesses for a sustainable long-term competitive advantage. As unfair trade practices diminish, policy clarity improves, and U.S. manufacturing continues to expand, we believe a favorable market environment will follow. “The aluminum team continues to make progress commissioning the company’s Columbus, Mississippi aluminum flat rolled products mill, as well as the San Luis Potosi, Mexico satellite recycled aluminum slab center. Two of the three planned cold mills are ramping operations and producing prime products, with the third cold mill scheduled to commission in the third quarter 2026. Additionally, the first of our two planned CASH lines to be used for the production of finished automotive products is now operational and has produced qualification material for automotive customers. The second CASH line is also expected to commission in the third quarter 2026. “We have deliberately aligned our growth strategy with our customers’ developing needs, prioritizing product excellence, supply-chain efficiency, and sustainability. Building on our strong positions in steel, we are expanding into high recycled-content aluminum to serve adjacent markets where customer demand is accelerating. This opportunity spans the counter-cyclical beverage can and packaging segment and extends to automotive, industrial, and construction applications. Backed by a performance-based culture and a proven ability to develop and operate cost-efficient, high-margin mills, we are well positioned to deliver attractive long-term value through this expansion. “Our commitment is to the health and safety of our teams, families, and communities, while meeting the current and future needs of our customers. Our culture and business model continues to positively differentiate our performance from the rest of the industry. We continue to focus on delivering superior value to our team members, customers, and shareholders,” concluded Millett. Conference Call and Webcast Steel Dynamics, Inc. will hold a conference call to discuss first quarter 2026 operating and financial results on Tuesday, April 21, 2026, at 11:00 a.m. Eastern Daylight Time. You may access the call and find dial-in information on the Investors section of the company’s website at www.steeldynamics.com. A replay of the call will be available on our website until 11:59 p.m. Eastern Daylight Time on April 30, 2026. About Steel Dynamics, Inc. Steel Dynamics is a leading industrial metals solutions company, with facilities located throughout the United States, and in Mexico. The company operates using a circular manufacturing model, producing lower-carbon-emission, quality products with recycled scrap as the primary input. Steel Dynamics is one of the largest domestic steel producers and metal recyclers in North America, combined with a meaningful downstream steel fabrication platform. The company has also recently added aluminum operations, further diversifying its product offerings to supply aluminum flat rolled products with higher recycled content to the countercyclical sustainable beverage can industry, in addition to the automotive and industrial sectors. Steel Dynamics is committed to operating with the highest integrity and to being the safest, most efficient producer of high-quality, broadly diversified, value-added metal products. Note Regarding Financial Metrics The company believes that after-tax return-on-invested capital (After-tax ROIC) provides an indication of the effectiveness of the company’s invested capital and is calculated as follows: After-tax ROIC = Net Income Attributable to Steel Dynamics, Inc. (Quarterly Average Current Maturities of Long-term Debt + Long-term Debt + Total Equity) Note Regarding Non-GAAP Financial Measures The company reports its financial results in accordance with U.S. generally accepted accounting principles (GAAP). Management believes that the non-GAAP financial measures EBITDA and Adjusted EBITDA provide additional meaningful information regarding the company’s performance and financial strength. Non-GAAP financial measures should be viewed in addition to and not as an alternative for the company’s reported results prepared in accordance with GAAP. In addition, not all companies use identical calculations for EBITDA or Adjusted EBITDA; therefore, EBITDA and Adjusted EBITDA included in this release may not be comparable to similarly titled measures of other companies. Forward-Looking Statements This press release contains some predictive statements about future events, including statements related to conditions in domestic or global economies, conditions in steel, aluminum, and recycled metals marketplaces, Steel Dynamics' revenues, costs of purchased materials, future profitability and earnings, and the operation of new, existing or planned facilities. These statements, which we generally precede or accompany by such typical conditional words as “anticipate”, “intend”, “believe”, “estimate”, “plan”, “seek”, “project”, or “expect”, or by the words “may”, “will”, or “should”, are intended to be made as “forward-looking”, subject to many risks and uncertainties, within the safe harbor protections of the Private Securities Litigation Reform Act of 1995. These statements speak only as of this date and are based upon information and assumptions, which we consider reasonable as of this date, concerning our businesses and the environments in which they operate. Such predictive statements are not guarantees of future performance, and we undertake no duty to update or revise any such statements. Some factors that could cause such forward-looking statements to turn out differently than anticipated include: (1) domestic and global economic factors; (2) global steelmaking overcapacity and imports of steel, together with increased scrap prices; (3) the cyclical nature of the metals industries and the industries we serve; (4) volatility and major fluctuations in prices and availability of scrap metal, scrap substitutes and supplies, and our potential inability to pass higher costs on to our customers; (5) cost and availability of electricity, natural gas, oil, and other energy resources are subject to volatile market conditions; (6) increased environmental, greenhouse gas emissions and sustainability considerations from our customers and investors or related regulations; (7) compliance with and changes in environmental and remediation requirements; (8) significant price and other forms of competition from other steel and aluminum producers, scrap processors and alternative materials; (9) availability of an adequate source of supply of scrap for our metals recycling operations; (10) cybersecurity threats and risks to the security of our sensitive data and information technology; (11) the implementation of our growth strategy; (12) our ability to retain, develop and attract key personnel; (13) litigation and legal compliance; (14) unexpected equipment downtime or shutdowns; (15) difficulties in the launch or production ramp-up of new products; (16) our aluminum operations depend on a core group of significant customers; (17) governmental agencies may refuse to grant or renew some of our licenses and permits; (18) our existing debt agreements contain, and any future financing agreements may contain, restrictive covenants that may limit our flexibility; and (19) the impacts of impairment charges. More specifically, we refer you to our more detailed explanation of these and other factors and risks that may cause such predictive statements to turn out differently, as set forth in our most recent Annual Report on Form 10-K under the headings Special Note Regarding Forward-Looking Statements and Risk Factors, in our Quarterly Reports on Form 10-Q, or in other reports which we file with the Securities and Exchange Commission. These reports are available publicly on the Securities and Exchange Commission website, www.sec.gov, and on our website, www.steeldynamics.com under “Investors – SEC Filings.” Contact: Investor Relations — +1.260.969.3500 Steel Dynamics, Inc. CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) (in thousands, except per share data) Three Months Ended Three Months March 31, Ended 2026 2025 Dec. 31, 2025 Net sales $ 5,204,858 $ 4,369,195 $ 4,414,048 Costs of goods sold 4,441,635 3,882,651 3,884,757 Gross profit 763,223 486,544 529,291 Selling, general and administrative expenses 175,220 181,808 184,646 Profit sharing 42,198 22,695 27,196 Amortization of intangible assets 7,801 6,897 7,219 Operating income 538,004 275,144 310,230 Interest expense, net of capitalized interest 33,241 12,131 26,958 Other (income) expense, net (8,450 ) (17,641 ) (27,333 ) Income before income taxes 513,213 280,654 310,605 Income tax expense 113,108 62,975 46,090 Net income 400,105 217,679 264,515 Net loss (income) attributable to noncontrolling interests 3,331 (528 ) 1,518 Net income attributable to Steel Dynamics, Inc. $ 403,436 $ 217,151 $ 266,033 Basic earnings per share attributable to Steel Dynamics, Inc. stockholders $ 2.79 $ 1.45 $ 1.83 Weighted average common shares outstanding 144,797 150,262 145,627 Diluted earnings per share attributable to Steel Dynamics, Inc. stockholders, including the effect of assumed conversions when dilutive $ 2.78 $ 1.44 $ 1.82 Weighted average common shares and share equivalents outstanding 145,321 150,809 146,249 Dividends declared per share $ 0.53 $ 0.50 $ 0.50 Steel Dynamics, Inc. CONSOLIDATED BALANCE SHEETS (in thousands) March 31, December 31, 2026 2025 (unaudited) Assets Current assets Cash and equivalents $ 556,527 $ 769,878 Accounts receivable, net 2,056,434 1,682,660 Inventories 3,908,120 3,738,516 Other current assets 274,089 293,117 Total current assets 6,795,170 6,484,171 Property, plant and equipment, net 8,549,876 8,569,466 Intangible assets, net 323,489 331,290 Goodwill 477,471 477,471 Other assets 574,213 557,382 Total assets $ 16,720,219 $ 16,419,780 Liabilities and Equity Current liabilities Accounts payable $ 1,379,494 $ 1,231,358 Income taxes payable 135,202 67,315 Accrued expenses 633,899 788,926 Current maturities of long-term debt 22,124 34,655 Total current liabilities 2,170,719 2,122,254 Long-term debt 4,178,669 4,176,508 Deferred income taxes 1,042,980 1,004,375 Other liabilities 194,449 186,232 Total liabilities 7,586,817 7,489,369 Commitments and contingencies Redeemable noncontrolling interests 141,226 141,226 Equity Common stock 653 653 Treasury stock, at cost (8,088,699 ) (7,980,549 ) Additional paid-in capital 1,237,939 1,248,634 Retained earnings 16,015,823 15,689,042 Accumulated other comprehensive loss (858 ) (598 ) Total Steel Dynamics, Inc. equity 9,164,858 8,957,182 Noncontrolling interests (172,682 ) (167,997 ) Total equity 8,992,176 8,789,185 Total liabilities and equity $ 16,720,219 $ 16,419,780 Steel Dynamics, Inc. CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (in thousands) Three Months Ended March 31, 2026 2025 Operating activities: Net income $ 400,105 $ 217,679 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 159,280 133,756 Equity-based compensation 17,451 17,040 Deferred income taxes 32,669 16,249 Other adjustments (2,293 ) (4,195 ) Changes in certain assets and liabilities: Accounts receivable (373,774 ) (303,602 ) Inventories (174,427 ) 13,810 Other assets 21,001 (32,115 ) Accounts payable 156,905 248,600 Income taxes receivable/payable 74,432 42,815 Accrued expenses (163,033 ) (197,434 ) Net cash provided by operating activities 148,316 152,603 Investing activities: Purchases of property, plant and equipment (137,979 ) (305,506 ) Purchases of short-term investments - (10,000 ) Proceeds from maturities of short-term investments - 137,811 Other investing activities (1,087 ) (1,064 ) Net cash used in investing activities (139,066 ) (178,759 ) Financing activities: Issuance of current and long-term debt 599,469 1,405,943 Repayment of current and long-term debt (612,359 ) (432,527 ) Dividends paid (72,470 ) (69,514 ) Purchase of treasury stock (115,087 ) (250,138 ) Other financing activities (22,312 ) (30,469 ) Net cash (used in) provided by financing activities (222,759 ) 623,295 Increase (decrease) in cash, cash equivalents, and restricted cash (213,509 ) 597,139 Cash, cash equivalents, and restricted cash at beginning of period 775,272 595,010 Cash, cash equivalents, and restricted cash at end of period $ 561,763 $ 1,192,149 Supplemental disclosure information: Cash paid for interest $ 26,000 $ 28,477 Cash paid for income taxes, net $ 4,491 $ 3,717 Steel Dynamics, Inc. SUPPLEMENTAL INFORMATION (UNAUDITED) (dollars in thousands) First Quarter 2026 2025 Q4 2025 External Net Sales Steel $ 3,538,743 $ 3,067,016 $ 3,141,366 Steel Fabrication 355,433 352,307 347,252 Metals Recycling 593,183 534,895 463,039 Aluminum 227,393 66,576 157,747 Other 490,106 348,401 304,644 Consolidated Net Sales $ 5,204,858 $ 4,369,195 $ 4,414,048 Operating Income (Loss) Steel $ 556,564 $ 229,963 $ 322,337 Steel Fabrication 89,514 116,745 90,545 Metals Recycling 47,467 25,710 18,642 Aluminum (64,592 ) (28,735 ) (47,098 ) 628,953 343,683 384,426 Non-cash amortization of intangible assets (7,801 ) (6,897 ) (7,219 ) Profit sharing expense (42,198 ) (22,695 ) (27,196 ) Non-segment operations (40,950 ) (38,947 ) (39,781 ) Consolidated Operating Income $ 538,004 $ 275,144 $ 310,230 Adjusted EBITDA Net income $ 400,105 $ 217,679 $ 264,515 Income taxes 113,108 62,975 46,090 Net interest expense 26,053 2,316 17,135 Depreciation 149,194 125,122 136,467 Amortization of intangible assets 7,801 6,897 7,219 EBITDA 696,261 414,989 471,426 Non-cash adjustments Unrealized (gains) losses on derivatives and currency remeasurement (11,594 ) 19,153 9,482 Equity-based compensation 15,230 14,181 24,513 Adjusted EBITDA $ 699,897 $ 448,323 $ 505,421 Other Operating Information Steel Average external sales price (Per ton) $ 1,193 $ 998 $ 1,107 Average ferrous cost (Per ton Melted) $ 396 $ 386 $ 374 Flat Roll shipments Butler, Columbus, and Sinton 2,011,443 2,119,187 1,902,346 Steel Processing divisions * 686,440 492,627 556,336 Long Product shipments Structural and Rail Division 490,971 437,398 445,978 Engineered Bar Products Division 194,022 191,658 170,539 Roanoke Bar Division 167,837 144,186 139,287 Steel of West Virginia 88,155 96,483 89,648 Total Shipments ( Tons ) 3,638,868 3,481,539 3,304,134 External Shipments (Tons) 2,966,124 3,071,735 2,837,126 Steel Mill Production (Tons ) 3,039,367 3,021,593 2,838,233 Metals Recycling Nonferrous shipments ( 000's of pounds ) 197,385 233,080 195,003 Ferrous shipments ( Gross tons ) 1,473,457 1,452,432 1,521,629 External ferrous shipments ( Gross tons ) 553,367 557,618 507,102 Steel Fabrication Average sales price (Per ton) $ 2,478 $ 2,599 $ 2,509 Shipments (Tons) 143,422 135,581 138,375 * Includes Heartland, The Techs, United Steel Supply, and New Process Steel (beginning December 1, 2025) operations

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other guidance in this release

Text is the filed exhibit, verbatim.