🟢 New in Current Filing Our level of production and our sales and earnings are subject to significant fluctuations as a result of the cyclical nature of the steel industry and some of the industries we serve. 🔒

🟢 New in Current Filing The cost and availability of electricity, natural gas, oil and other energy resources are subject to volatile market conditions. 🔒

🟢 New in Current Filing We may face risks associated with our ability to retain, develop and attract key personnel. 🔒

🟢 New in Current Filing Steel Operations Segment 🔒

🟢 New in Current Filing Years Ended December 31, 🔒

🟢 New in Current Filing Aluminum Operations Segment 🔒

🟢 New in Current Filing Balances at December 31, 2023 🔒

🟢 New in Current Filing Note 1. Description of the Business and Summary of Significant Accounting Policies (Continued) 🔒

🟢 New in Current Filing Equity-Based Compensation 🔒

🟢 New in Current Filing (Denominator) 🔒

🟢 New in Current Filing Note 1. Description of the Business and Summary of Significant Accounting Policies (Continued) 🔒

🟢 New in Current Filing Recently Adopted Accounting Pronouncements 🔒

🟢 New in Current Filing Note 3. Long-Term Debt 🔒

🟢 New in Current Filing Compensation 🔒

🟢 New in Current Filing Note 6. Equity-Based Incentive Plans (Continued) 🔒

🟢 New in Current Filing Note 7. Fair Value Measurements 🔒

🟢 New in Current Filing Note 7. Fair Value Measurements (Continued) 🔒

🟢 New in Current Filing Identical Assets 🔒

🟢 New in Current Filing December 31, 2024 🔒

🟢 New in Current Filing December 31, 2023 🔒

🟢 New in Current Filing Note 8. Commitments and Contingencies 🔒

🔴 No Match in Current Filing Pandemics, epidemics, widespread illness or other health issues may adversely affect our business, results of operations, financial condition, cash flows, liquidity, and stock price. 🔒

🔴 No Match in Current Filing 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, may constrain operating levels and reduce profit margins. 🔒

🔴 No Match in Current Filing Steel Operations Segment 🔒

🔴 No Match in Current Filing Years Ended December 31, 🔒

🔴 No Match in Current Filing Balances at January 1, 2021 🔒

🔴 No Match in Current Filing Inventories 🔒

🔴 No Match in Current Filing (Denominator) 🔒

🔴 No Match in Current Filing Note 1. Description of the Business and Summary of Significant Accounting Policies (Continued) 🔒

🔴 No Match in Current Filing Long-Term Incentive Compensation Program (LTIP) 🔒

🔴 No Match in Current Filing Note 7. Derivative Financial Instruments 🔒

🔴 No Match in Current Filing Metric Tons 🔒

🔴 No Match in Current Filing December 31, 2022 🔒

🔴 No Match in Current Filing Note 7. Derivative Financial Instruments (Continued) 🔒

🔴 No Match in Current Filing For the Year Ended December 31, 2023 🔒

🔴 No Match in Current Filing For the Year Ended December 31, 2022 🔒

🔴 No Match in Current Filing For the Year Ended December 31, 2021 🔒

🟡 Modified Senior Unsecured Notes 🔒

🟡 Modified Note 3. Long-Term Debt (Continued) 🔒

🟡 Modified Net income attributable to Steel Dynamics, Inc. 🔒

🟡 Modified Steel Fabrication Operations Segment 🔒

🟡 Modified Award Issued/Issuable 🔒

🟡 Modified Short-Term Investments 🔒

🟡 Modified Business Combinations 🔒

🟡 Modified Unexpected equipment downtime or shutdowns may adversely affect our business, financial condition, results of operations and cash flows. 🔒

🟡 Modified Metals Recycling Operations Segment 🔒

🟡 Modified Commodity Risk 🔒

🟡 Modified Steel Fabrication Operations Segment 🔒

🟡 Modified Revenue from Contracts with Customers 🔒

🟡 Modified Aluminum Operations Segment 🔒

🟡 Modified Impairment of Long-Lived Tangible and Definite-Lived Intangible Assets 🔒

🟡 Modified Other comprehensive income (loss) - net unrealized gain (loss) on cash flow 🔒

🟡 Modified Consolidated Results 2024 vs. 2023 🔒

🟡 Modified Steel Operations Segment 🔒

🟡 Modified We may face risks associated with the implementation of our growth strategy. 🔒

🟡 Modified Investing activities: 🔒

🟡 Modified Note 4. Income Taxes (Continued) 🔒

🟡 Modified Aluminum Dynamics 🔒

🟡 Modified Cash Dividends 🔒

🟡 Modified Maximum Dollar Value of Shares That May Yet be Purchased Under the Program (in thousands) (1) 🔒

🟡 Modified Balances at January 1, 2022 🔒

🟡 Modified Principles of Consolidation 🔒

🟡 Modified Market Risk 🔒

🟡 Modified Supplemental disclosure information: 🔒

🟡 Modified Earnings Per Share 🔒

🟡 Modified 2023 Equity Incentive Plan 🔒

🟡 Modified Note 4. Income Taxes 🔒

🟡 Modified when dilutive 🔒

🟡 Modified Other Obligations 🔒

🟡 Modified Long-Term Incentive Compensation Program (LTIP) 🔒

🟡 Modified Metals Recycling Operations Segment 🔒

🟡 Modified Operating Statement Classifications 🔒

🟡 Modified Amortization 🔒

🟡 Modified Inventories 🔒

🟡 Modified Derivative Financial Instruments 🔒

🟡 Modified Inc. stockholders 🔒

🟡 Modified Description of the Business 🔒

🟡 Modified Comprehensive income attributable to Steel Dynamics, Inc. 🔒

🟡 Modified Intangible assets, net 🔒

🟡 Modified Years Ended December 31, 🔒

🟡 Modified Outstanding Debt Maturities 🔒

🟡 Modified Segment Results 2024 vs. 2023 🔒

🟡 Modified Financing activities: 🔒

🟡 Modified Balances at December 31, 2024 🔒

🟡 Modified Segment Results 2024 vs. 2023 🔒

🟡 Modified Income before income taxes 🔒

🟡 Modified Total net sales 🔒

🟡 Modified Comprehensive income 🔒

🟡 Modified (Denominator) 🔒

🟡 Modified Recently Issued Not Yet Adopted Accounting Pronouncements 🔒

🟡 Modified Note 6. Equity-Based Incentive Plans (Continued) 🔒

🟡 Modified Gross profit 🔒

🟡 Modified Operating activities: 🔒

🟡 Modified Years Ended December 31, 🔒

🟡 Modified Total liabilities and equity 🔒

🟡 Modified Operating income 🔒

🟡 Modified Note 4. Income Taxes (Continued) 🔒

🟡 Modified Dividends declared per share 🔒

🟡 Modified Segment Results 2024 vs. 2023 🔒

🟡 Modified Current liabilities 🔒

🟡 Modified Property, Plant and Equipment 🔒

🟡 Modified Redeemable noncontrolling interests 🔒

🟡 Modified Current assets 🔒

🟡 Modified Valuation of Goodwill 🔒

🟡 Modified Critical Audit Matter 🔒

🟡 Modified Impairment of Goodwill 🔒

🟡 Modified Note 1. Description of the Business and Summary of Significant Accounting Policies (Continued) 🔒

🟡 Modified 2024 Overview 🔒

🟡 Modified Variable Rate 🔒

🟡 Modified Years Ended December 31, 🔒

🟡 Modified 2018 Executive Incentive Compensation Plan (2018 Executive Plan) 🔒

🟡 Modified Years Ended December 31, 🔒