Forward-Looking Statements

This report contains some predictive statements about future events, including statements related to conditions in the steel marketplace, our revenue growth, and costs of raw materials, future profitability and earnings, and the operation of new or existing facilities. These statements 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. Such predictive statements are not guarantees of future performance, and actual results could differ materially from our current expectations. Factors that could cause such predictive statements to turn out other than as anticipated or predicted include, among others: changes in global economic conditions affecting steel consumption, steel scrap and non-ferrous material consumption; continuation of the current financial crisis; increased foreign imports; reduced domestic exports; increased price competition; difficulties in integrating acquired businesses; risks and uncertainties involving new products or new technologies; changes in the availability or cost of steel scrap or substitute materials; increases in energy costs; occurrence of unanticipated equipment failures and plant outages; labor unrest; and the effect of the elements on production or consumption.

In addition, we refer you to the sections titled Special Note Regarding Forward-Looking Statements and Risk Factorsin our annual report on Form 10-K for the year ended December 31, 2008, as well as in other reports which we file with the Securities and Exchange Commission, for a more detailed discussion of some of the many factors, variable risks and uncertainties that could cause actual results to differ materially from those we may have expected or anticipated. These reports are available publicly on the SEC web site, www.sec.gov, and on our web site, www.steeldynamics.com. Forward-looking or predictive statements we make are based on our knowledge of our businesses and the environment in which they operate as of the date on which the statements were made. Due to these risks and uncertainties, as well as matters beyond our control which can affect forward-looking statements, you are cautioned not to place undue reliance on these predictive statements, which speak only as of the date of this report. We undertake no duty to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.

Operating Statement Classifications

Net Sales. Net sales from our operations are a factor of net tons shipped, product mix and related pricing. We charge premium prices for certain grades of steel, product dimensions, certain smaller volumes, and for value-added processing or coating of the steel products. Except for our steel fabrication operations segment, we recognize revenue from sales and the allowance for estimated costs associated with returns from these sales at the time the title of the product is transferred to the customer. Provision is made for estimated product returns and customer claims based on estimates and actual historical experience. Net sales from steel fabrication operations are recognized from construction contracts utilizing a percentage-of-completion method, which is based on the percentage of steel consumed to date as compared to the estimated total steel required for each contract.

Costs of Goods Sold. Our costs of goods sold represent all direct and indirect costs associated with the manufacture of our products. The principal elements of these costs for our steel operations are steel scrap and scrap substitutes, alloys, zinc, natural gas, argon, direct and indirect labor and related benefits, electricity, oxygen, electrodes, depreciation, materials and freight. Our metallic raw materials, steel scrap and scrap substitutes, represent the most significant single component of our costs of goods sold. The primary costs related to our metals recycling and ferrous resources operations is the cost of raw materials, freight costs, and processing expenses.

Selling, General and Administrative Expenses. Selling, general and administrative expenses consist of all costs associated with our sales, finance and accounting, and administrative departments. These costs include, among other items, labor and benefits, professional services, insurance expense, property taxes, profit-sharing, and amortization of intangible assets.

Interest Expense, net Capitalized Interest. Interest expense consists of interest associated with our senior credit facilities and other debt (described in the notes to our financial statements included in our 2008 Annual Report on Form 10-K) net of capitalized interest costs that are related to construction expenditures during the construction period of material capital projects.

Other Income, net. Other income consists of interest income earned on our cash balances and any other non-operating income activity, including gains on certain short-term investments and income from equity investments. Other expense consists of any non-operating costs.

Acquisition

On June 9, 2008, we completed our acquisition of Recycle South, one of the nation's largest, privately-held, regional scrap metal recycling companies, headquartered in Spartanburg, South Carolina. OmniSource (which already owned 25% of Recycle South), acquired the remaining 75% equity interest for a purchase price of approximately $376.3 million. We paid approximately $236.6 million in cash, including transaction costs, and issued 3,938,000 shares of Steel Dynamics, Inc. common stock valued at $139.8 million. In addition, we assumed $144.9 million of net debt, of which approximately $142.8 million was repaid upon the closing of the acquisition.

We purchased Recycle South to expand our metals recycling business. Recycle South provides a significant presence in the southeastern United States through its 22 locations within North Carolina, South Carolina and Georgia. Recycle South's consolidated operating results have been reflected in our financial statements since June 9, 2008, in the metals recycling and ferrous resources reporting segment.

First Quarter Operating Results 2009 vs. 2008

Outlook. Net loss attributable to Steel Dynamics, Inc. was $87.9 million, or $.48 per diluted share, during the first quarter of 2009, compared with net income attributable to Steel Dynamics, Inc. of $142.6 million, or $.72 per diluted share, during the first quarter of 2008. As is the case throughout the global steel industry, we have been adversely impacted in recent quarters by the overall economic recession. While the negative trend in falling demand and pricing for our products appears to be slowing, we are still anticipating sluggish activity. We have taken steps to further reduce production and other costs, as our utilization rates were less than 50% of operational production capacity during the quarter. Certain raw material inputs at our steel operations were also written down during the quarter. With this even further reduced cost structure, we believe that we are well positioned in the near term to capitalize on any increase in demand given our low variable cost structure, which allows us to generate operating income even at reduced utilization rates.

Gross Profit. When comparing the first quarter of 2009 with the first quarter of 2008, our net sales decreased $1.1 billion, or 57%, to $815 million. Our gross profit percentage was a negative 5% during the first quarter of 2009 as compared to a positive 18% for the first quarter of 2008, and as compared to a negative 3% on a linked-quarter basis. The most significant non-operating component of our first quarter 2009 loss was a non-cash adjustment to inventory values of $83.3 million, or $.27 per diluted share, due principally to the rapid decline in flat-rolled steel product values. Excluding inventory write downs, gross profit percentage was 5% and 0% for the three-month periods ended March 31, 2009, and December 31, 2008, respectively.

                                Steel Operations



                                      Three Months       Three Months
                                          Ended             Ended
                                        March 31,        December 31,
                                    2009       2008          2008
Shipments (net tons)
Flat Roll Division                 303,938     685,320        361,145
Structural and Rail Division       129,555     299,687        228,132
Engineered Bar Products Division    71,540     147,948        123,449
Roanoke Bar Division                76,610     151,368         94,374
Steel of West Virginia              43,124      75,724         45,788
The Techs                          118,359     262,011         89,551
Total shipments                    743,126   1,622,058        942,439
Intra-company                      (52,012 )  (130,685 )      (51,803 )
External shipments                 691,114   1,491,373        890,636

Steel operations accounted for 59% and 58% of our net sales during the first quarter of 2009 and 2008, respectively. First quarter 2009 shipments were down dramatically compared to the same period in 2008 at all our steel operations divisions due to the depressed economic climate. We also experienced decreased linked-quarter shipments at all our steel operations divisions, with the exception of The Techs, which increased shipments by 29,000 tons, or 32%, due primarily to the timing of shipments rather than an increase in order entry activity.

Our first quarter 2009 average steel operations' selling price per ton shipped decreased $62 compared with the first quarter of 2008 and $193 compared with the fourth quarter of 2008. Demand for steel products has remained weak into the second quarter of 2009, putting further downward pressure on selling prices. Steel services center customers, which normally comprise approximately 60% of our steel operations shipments, have continued destocking efforts through the first quarter of 2009. We do not anticipate a meaningful increase in our steel operations shipping volumes until service center buying activity resumes. Likewise, our end markets are concentrated in the non-residential construction, heavy equipment, and automotive industries, sectors that have been negatively impacted by the economic downturn.

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Metallic raw materials used in our electric arc furnaces represent our most significant manufacturing cost. Our metallic raw material cost per net ton consumed in our steel operations decreased $56 compared with the first quarter of 2008, and $78 on a linked-quarter basis. During the first quarter of 2009 and 2008, respectively, our metallic raw material costs represented 49% and 62% of our steel operation's manufacturing costs, excluding the operations of The Techs, which purchases, rather than produces, the steel it further processes. During the first quarter of 2009, our steel operations' costs of goods sold included $83.3 million in additional costs related to decreasing our inventory values, which were above prevailing market selling values. We anticipate steel scrap prices to remain relatively steady during the remainder of 2009 which, when combined with the revaluation of our inventories at the end of 2008 and beginning of 2009, should result in a favorable cost structure.

               Metals Recycling and Ferrous Resources Operations



                                                 Three Months           Three Months
                                                    Ended                  Ended
                                                  March 31,             December 31,
                                             2009           2008            2008
Ferrous metals shipments
Total                                         729,869      1,391,382         897,922
Intra-company                                (246,728 )     (463,893 )      (438,532 )
External                                      483,141        927,489         459,390

Non-ferrous metals shipments
(thousands of pounds)                         190,394        238,788         177,246

Iron Dynamics shipments
Liquid pig iron                                41,226         45,443          21,171
Hot briquetted iron                            20,326         19,741          27,005
Other                                             674          2,809           3,834
                                               62,226         67,993          52,010

Metals recycling and ferrous resources operations accounted for 33% and 37% of our net sales during the first quarters of 2009 and 2008, respectively. Our metals recycling operations primarily engage in the brokerage, collection and processing of ferrous and non-ferrous metals for resale to steel companies, brokers and other metals processors. During the first quarter of 2009, this segment recorded external shipments of 483,000 tons of ferrous metals and 190.4 million pounds of non-ferrous materials, compared with 927,000 tons and 238.8 million pounds during the same period in 2008. On a linked-quarter basis, external shipments of ferrous metals and non-ferrous materials increased by 24,000 tons and 13.1 million pounds, respectively. External shipments for the quarter fell substantially compared to the same period in 2008, in spite of the acquisition in June 2008 of Recycle South. Due to the global economic recession, electric arc furnace utilization is running at levels below 50%, thus suppressing demand for ferrous metals. Conversely, the market for non-ferrous materials, particularly copper, has shown modest signs of strengthening, with demand from China appearing to be the primary driver.

We anticipate ferrous and non-ferrous material costs to remain relatively stable during the remainder of 2009, as suppressed demand is being offset by limited supply due to low levels of manufacturing activity, which generates our supply of industrial scrap.

Steel fabrication operations accounted for 7% and 4% of our net sales during the first quarters of 2009 and 2008, respectively. Our average steel fabrication operations' selling price per ton shipped increased $198, or 17%, during the first quarter of 2009 when compared with 2008, and decreased $117, or 8%, on a linked-quarter basis. The purchase of various steel products is the largest single cost of production for our steel fabrication operations. During the first quarters of 2009 and 2008, respectively, the cost of steel products purchased represented 75% and 70% of the total cost of manufacturing for our steel fabrication operations. In spite of the weak economy and decreased activity in non-residential construction, our steel fabrication segment was able to generate operating income in the first quarter of 2009. We anticipate non-residential construction activity to remain slow during the remainder of 2009, resulting in decreased shipping volumes and selling prices for this segment of our operations compared to 2008.

Selling, General and Administrative Expenses. Selling, general and administrative expenses (including profit sharing and amortization of intangible assets) were $73.0 million during the first quarter of 2009, as compared to $94.9 million during the first quarter of 2008, a decrease of $21.9 million, or 23%. Our selling, general and administrative expenses represented 9% and 5% of our total net sales during the first quarters of 2009 and 2008, respectively. The percentage increase is primarily a result of the significant decline in nets sales in the first quarter of 2009 compared with the prior year.

The decrease in our selling, general and administrative expenses were due primarily to not recording profit sharing expense during the first quarter of 2009 as a result of the quarter's net loss. We recorded expense of $16.3 million during 2008 related to our Steel Dynamics performance-based profit sharing plan allocation. During 2008 the company's board of directors modified the contribution percentage for this plan to consist of 2% of consolidated pretax earnings plus a unique percentage of each of the company's operating segments' pretax earnings. The resulting total contribution percentage was 8% of consolidated pretax earnings during the first quarter of 2008. During the first quarter of 2008, we recorded additional profit sharing expense of $2.2 million related to certain subsidiaries whose employees did not participate in the aforementioned plan.

Amortization of intangible assets increased $4.2 million during the first quarter of 2009 compared to the same period in 2008. This increase includes $4.8 million of additional amortization of intangible assets required to be recorded due to the adjustment of the purchase price allocation and intangible asset valuations related to the acquisition of Recycle South in June 2008. The Recycle South valuation of finite-lived intangibles is still preliminary, which could cause a change in the amount of amortization on a prospective basis.

Interest Expense, net Capitalized Interest. During the first quarter of 2009, gross interest expense increased $5.5 million, or 16%, to $39.3 million, and capitalized interest decreased $2.0 million to $3.1 million, when compared to the same period in 2008. This increase in interest expense was due to increased borrowings of $496.6 million. The interest capitalization that occurred during these periods resulted from the interest required to be capitalized with respect to construction activities at our various operating segments. Our weighted-average interest rate on our outstanding borrowings was 5.8% and 6.1% at March 31, 2009 and December 31, 2008, respectively. We currently anticipate gross interest expense to remain relatively stable during the remainder of 2009.

Other Income, net Other Expense. Other income was $748,000 during the first quarter of 2009, as compared to $7.8 million during the same period in 2008. During the first quarter of 2008, other income of $6.7 million was attributable to earnings from investments in scrap

procurement and processing entities which were accounted for under the equity method of accounting. As of the date of its acquisition, Recycle South, which was $6.4 million of other income during the first quarter of 2008, is no longer included in other income, as its results are consolidated in our financial statements after acquisition.

Income Taxes (Benefit). During the first quarter of 2009, our income tax provision was a benefit of $59.3 million, as compared to expense of $87.4 million during the same period in 2008. Our effective income tax rate was 40.3% and 38.0% during the first quarters of 2009 and 2008, respectively. Our first quarter 2009 effective income tax rate was impacted by a tax credit. We project our effective income tax rate to be 39.3% for the remainder of 2009. We account for income taxes and the related accounts under the liability method. Deferred tax liabilities and assets are determined based on the difference between the financial statement and tax basis of assets and liabilities using enacted rates expected to be in effect during the year in which the basis differences reverse.

Included in the amount of unrecognized tax benefits at March 31, 2009, are potential benefits of $37.1 million that, if recognized, would affect our effective tax rate. We recognize interest and penalties related to our tax contingencies on a net-of-tax basis in income tax expense. During the first quarter of 2009, we recognized interest of $329,000, net of tax, and benefits of $29,000. At March 31, 2009, we had $7.5 million accrued for the payment of interest and penalties.

We file income tax returns in the U.S. federal jurisdiction and in various state jurisdictions. The state of Indiana completed its examination of the calendar years 2000 through 2005 in the third quarter of 2008. We paid additional taxes of $20.7 million as a result of the examinations. This amount was recorded as an unrecognized tax benefit when we adopted Financial Accounting Standards Board (FASB) Interpretation 48 (FIN 48) on January 1, 2007. It is reasonably possible that the amount of unrecognized tax benefits could change in the next twelve months as a result of state income tax audits. Based on current audits in process, the payment of additional taxes could be in an amount from zero to $2.0 million during 2009, primarily related to state nexus issues. With few exceptions, we are no longer subject to federal, state and local income tax examinations by tax authorities for years ended before 2005.

Liquidity and Capital Resources

Our business is capital intensive and requires substantial expenditures for, among other things, the purchase and maintenance of equipment used in our steelmaking and finishing operations and to remain in compliance with environmental laws. Our short-term and long-term liquidity needs arise primarily from capital expenditures, working capital requirements and principal and interest payments related to our outstanding indebtedness. We have met these liquidity requirements with cash provided by operations, equity, long-term borrowings, state and local grants and capital cost reimbursements.

Working Capital. During the first quarter of 2009, our operational working capital position, representing our cash invested in trade receivables and inventories less trade payables and accruals decreased $224.7 million to $761.7 million compared to December 31, 2008. Trade receivables decreased $141.1 million, or 28%, during the first quarter of 2009 to $361.8 million, of which 94% were current or less than 60 days past due. Our largest customer is an affiliated company, Heidtman Steel, which represented 7% and 10% of our outstanding trade receivables at March 31, 2009 and December 31, 2008, respectively. Trade receivables declined substantially during the first quarter of 2009 due to a continued decrease in shipping volumes and product prices. The dollar value of our raw materials, primarily steel scrap inventories, decreased by approximately $174.2 million during the quarter. Approximately $78.9 million of this decrease related to the $83.3 million non-cash inventory write down. Steel scrap inventory volumes, including both steel operations and metals recycling and ferrous resources, increased by 41,000 gross tons during the first quarter of 2009. The dollar value of total inventories decreased $190.2 million, or 19%, to $833.1 million during the quarter, with volumes of work-in-process and finished goods inventories remaining relatively stable. Our trade payables and general accruals decreased $106.6 million, or 20%, during the first quarter of 2009. This is a reflection of the slowdown in our production process and commodity raw material prices purchased during the first quarter of 2009 to match the decrease in the demand for our products, as well as the payment in March 2009 of $61.7 million of accrued profit sharing related to calendar year 2008.

Capital Expenditures. During the first quarter of 2009, we invested $74.3 million in property, plant and equipment, of which $13.3 million related primarily to the addition of a second rolling mill at our Structural and Rail Division, $7.2 million related to metals recycling operations and $36.1 million related to construction at Mesabi Nugget, our planned iron-nugget manufacturing facility and related mining operations. The other capital expenditures of $17.7 million primarily represented maintenance projects at our other facilities. We believe these capital investments will benefit our net sales and related cash flows as each project reaches completion.

Capital Resources and Long-term Debt. During the first quarter of 2009, our total outstanding debt decreased $135.9 million to $2.5 billion. Our total long-term debt to capitalization ratio, representing our long-term debt, including current maturities divided by the sum of our long-term debt and our total stockholders' equity, was 62% at March 31, 2009 and December 31, 2008. At March 31, 2009, there were outstanding borrowings of $231.0 million under our $874.0 million senior secured revolver and $552.1 million outstanding under our term A loan (both due July 2012).

The senior secured credit agreement contains financial covenants and other covenants that limit or restrict our ability to make capital expenditures; incur indebtedness; permit liens on property; enter into transactions with affiliates; make restricted payments or investments; enter into mergers, acquisitions or consolidations; conduct asset sales; pay dividends or distributions and enter into other specified transactions and activities. Our ability to borrow funds within the terms of the revolver is dependent upon our continued compliance with the financial covenants and other covenants contained in the senior secured credit agreement. The financial covenants state that we must maintain at all times an interest coverage ratio of not less than 2.00:1.00 and must maintain a total debt to consolidated last-twelve-months trailing EBITDA (earnings before interest, taxes, depreciation, amortization, and certain other non-cash transaction adjustments as defined in the credit agreement) ratio of not more than 5.00:1.00. If the total debt to EBITDA ratio exceeds 3.50:1.00, then our ability to make restricted payments as defined in the credit

agreement (which includes cash dividends to stockholders and share purchases, among other things), is limited to $25 million per quarter. We were in compliance with these covenants at March 31, 2009 with an interest coverage ratio of 5.41 and a total debt to EBITDA ratio of 2.81. However, based on the current economic environment and our outlook, we believe we may be in violation of our financial covenants during 2009, which if not resolved, could also constitute a cross default under other debt instruments. We are considering a number of alternatives to address this situation, including but not limited to obtaining a waiver from our bank group. We may incur additional costs related to these alternatives.

Cash Dividends. We declared cash dividends of $18.2 million, or $.10 per share, during the first quarter of 2009 and $18.9 million, or $.10 per share, during the first quarter of 2008. We paid cash dividends of $18.2 million and $14.3 million during the first quarters of 2009 and 2008, respectively. Our board of directors, along with executive management, approves the payment of dividends on a quarterly basis. The determination to pay cash dividends in the future will be at the discretion of our board of directors, after taking into account various factors, including our financial condition, results of operations, outstanding indebtedness, current and anticipated cash needs and growth plans. In addition, the terms of our senior secured revolving credit agreement and the indenture relating to our senior notes restrict the amount of cash dividends we can pay.

Other. Our ability to meet our debt service obligations and reduce our total debt will depend upon our future performance which, in turn, will depend upon general economic, financial and business conditions, along with competition, legislation and regulatory factors that are largely beyond our control. In addition, we cannot assure you that our operating results, cash flow and capital resources will be sufficient for repayment of our indebtedness in the future. We . . .