Biggest changeManagement’s Discussion and Analysis of Financial Condition and Results of Operations in Part II of our Annual Report on Form 10-K for the year ended December 31, 2021, for additional information regarding results of operations for the year ended December 31, 2021, as compared to the year ended December 31, 2020, and segment operating results for 2021 as compared to 2020. 38 Table of Contents Segment Operating Results ( dollars in thousands ) Years Ended December 31, 2022 % Change 2021 Net sales Steel Operations $ 15,100,917 8% $ 14,023,133 Metals Recycling Operations 4,395,636 (4)% 4,590,121 Steel Fabrication Operations 4,257,207 141% 1,764,710 Other 1,288,984 2% 1,266,971 25,042,744 21,644,935 Intra-company (2,781,970) (3,236,085) $ 22,260,774 21% $ 18,408,850 Operating income (loss) Steel Operations $ 3,095,348 (29)% $ 4,360,488 Metals Recycling Operations 117,266 (36)% 181,986 Steel Fabrication Operations 2,424,655 564% 365,250 Other (599,828) (9)% (551,725) 5,037,441 4,355,999 Intra-company 54,381 (54,894) $ 5,091,822 18% $ 4,301,105 39 Table of Contents Steel Operations Segment Steel operations consist of our electric arc furnace steel mills, producing steel from ferrous scrap and scrap substitutes, utilizing continuous casting, automated rolling mills, numerous value-added downstream steel coating and processing operations, and distribution operations.
Biggest changeOur 2023 change in reportable segments did not change the discussion previously provided. 40 Table of Contents Segment Operating Results ( dollars in thousands ) Years Ended December 31, 2023 % Change 2022 Net sales Steel Operations $ 13,067,622 (13)% $ 15,100,996 Metals Recycling Operations 4,360,127 (1)% 4,395,668 Steel Fabrication Operations 2,806,777 (34)% 4,257,207 Aluminum Operations - - - Other 1,171,901 (9)% 1,287,980 21,406,427 25,041,851 Intra-company (2,611,111) (2,781,077) $ 18,795,316 (16)% $ 22,260,774 Operating income (loss) Steel Operations $ 1,881,600 (39)% $ 3,092,689 Metals Recycling Operations 88,654 (24)% 116,497 Steel Fabrication Operations 1,593,261 (34)% 2,424,655 Aluminum Operations (23,773) (909)% (2,355) Other (394,577) 34% (594,045) 3,145,165 5,037,441 Intra-company 6,016 54,381 $ 3,151,181 (38)% $ 5,091,822 41 Table of Contents Steel Operations Segment Steel operations consist of our electric arc furnace (EAF) steel mills, producing steel from ferrous scrap and scrap substitutes, utilizing continuous casting, automated rolling mills and numerous steel coating, processing lines and warehouse operations.
Other income consists of interest income earned on our temporary cash deposits and short-term investments; any other non-operating income activity, including income from investments in unconsolidated affiliates accounted for under the equity method.
Other income consists of interest income earned on our temporary cash deposits, short-term and other investments, and any other non-operating income activity, including income from investments in unconsolidated affiliates accounted for under the equity method.
Revenues from these plants are generated from the fabrication of steel joists, girders, trusses, and steel deck used within the non-residential construction industry.
Revenues from these plants are generated from the fabrication of trusses, girders, steel joists, and steel deck used within the non-residential construction industry.
We have met and intend to continue to meet these liquidity requirements primarily with available cash and cash provided by operations, and long-term borrowings, and we also have availability under our unsecured Revolver.
We have met and intend to continue to meet these liquidity requirements primarily with available cash and cash provided by operations, long-term borrowings, and we also have availability under our unsecured Revolver.
We have an accrual of $6.2 million recorded for environmental remediation related to our metals recycling operations, and $2.6 million related to our idled Minnesota ironmaking operations.
We have an accrual of $6.6 million recorded for environmental remediation related to our metals recycling operations, and $2.6 million related to our idled Minnesota ironmaking operations.
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) pandemics, epidemics, widespread illness or other health issues, such as COVID-19 or its variants; (4) the cyclical nature of the steel industry and the industries we serve; (5) 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; (6) cost and availability of electricity, natural gas, oil, or other energy resources are subject to volatile market conditions; (7) increased environmental, greenhouse gas emissions and sustainability considerations or regulations; (8) compliance with and changes in environmental and remediation requirements; (9) significant price and other forms of competition from other steel and aluminum producers, scrap processors and alternative materials; (10) availability of an adequate source of supply of scrap for our metals recycling operations; (11) cybersecurity threats and risks to the security of our sensitive data and information technology; (12) the implementation of our growth strategy; (13) litigation and legal compliance; (14) unexpected equipment downtime or shutdowns; (15) governmental agencies may refuse to grant or renew some of our licenses and permits; (16) our senior unsecured credit facility contains, and any future financing agreements may contain, restrictive covenants that may limit our flexibility; and (17) the impacts of impairment charges.
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) pandemics, epidemics, widespread illness or other health issues; (4) the cyclical nature of the steel industry and the industries we serve; (5) 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; (6) cost and availability of electricity, natural gas, oil, and other energy resources are subject to volatile market conditions; (7) increased environmental, greenhouse gas emissions and sustainability considerations from our customers or related regulations; (8) compliance with and changes in environmental and remediation requirements; (9) significant price and other forms of competition from other steel and aluminum producers, scrap processors and alternative materials; (10) availability of an adequate source of supply of scrap for our metals recycling operations; (11) cybersecurity threats and risks to the security of our sensitive data and information technology; (12) the implementation of our growth strategy; (13) litigation and legal compliance; (14) unexpected equipment downtime or shutdowns; (15) governmental agencies may refuse to grant or renew some of our licenses and permits; (16) our senior unsecured credit facility contains, and any future financing agreements may contain, restrictive covenants that may limit our flexibility; and (17) the impacts of impairment charges.
We believe that based upon current levels of operations and anticipated growth, cash flows from operations, together with other available sources of funds, including borrowings under our Revolver, if necessary, will be adequate for the next twelve months for making required payments of principal and interest on our indebtedness, funding working capital requirements, and funding anticipated capital expenditures.
We believe that based upon current levels of operations and anticipated growth, cash flows from operations, together with other available sources of funds, including borrowings under our Facility, if necessary, will be adequate for the next twelve months for making required payments of principal and interest on our indebtedness, funding working capital requirements, and funding anticipated capital expenditures.
We have firm contracts with various vendors for the completion of certain construction projects at our various divisions at December 31, 2022. Refer to Note 9. Commitments and Contingencies to the consolidated financial statements elsewhere in this report for this information. Lease commitments. We have entered into operating leases relating principally to transportation and other equipment, and some real estate.
We have firm contracts with various vendors for the completion of certain construction projects at our various divisions at December 31, 2023. Refer to Note 9. Commitments and Contingencies to the consolidated financial statements elsewhere in this report for this information. Lease commitments. We have entered into operating leases relating principally to transportation and other equipment, and some real estate.
The principal elements of these costs are scrap and scrap substitutes (which represent the most significant single component of our consolidated costs of goods sold), steel substrate, direct and indirect labor and related benefits, alloys, zinc, transportation and freight, repairs and maintenance, utilities such as electricity and natural gas, and depreciation. 37 Table of Contents Selling, General and Administrative Expenses .
The principal elements of these costs are scrap and scrap substitutes (which represent the most significant single component of our consolidated costs of goods sold), steel substrate, direct and indirect labor and related benefits, alloys, zinc, transportation and freight, repairs and maintenance, utilities such as electricity and natural gas, and depreciation. 39 Table of Contents Selling, General and Administrative Expenses .
Results may differ from these estimates due to actual outcomes being different from those on which we based our assumptions. We believe the following critical accounting estimates affect our more significant judgments and estimates used in the preparation of our consolidated financial statements. 47 Table of Contents Impairments of Long-Lived Tangible and Definite-Lived Intangible Assets.
Results may differ from these estimates due to actual outcomes being different from those on which we based our assumptions. We believe the following critical accounting estimates affect our more significant judgments and estimates used in the preparation of our consolidated financial statements. 49 Table of Contents Impairments of Long-Lived Tangible and Definite-Lived Intangible Assets.
A tax benefit that has been previously reserved because of a failure to meet the "more likely than not" recognition threshold would be recognized in our income tax expense in the first interim period when the uncertainty disappears. Settlement of any particular issue would usually require the use of cash. 49 Table of Contents
A tax benefit that has been previously reserved because of a failure to meet the "more likely than not" recognition threshold would be recognized in our income tax expense in the first interim period when the uncertainty disappears. Settlement of any particular issue would usually require the use of cash. 51 Table of Contents
Accordingly, discount rate scenario analysis is performed to evaluate the impact on estimated reporting unit fair values. Our fourth quarter 2022, 2021, and 2020 annual goodwill impairment analyses did not result in any impairment charges.
Accordingly, discount rate scenario analysis is performed to evaluate the impact on estimated reporting unit fair values. Our fourth quarter 2023, 2022, and 2021 annual goodwill impairment analyses did not result in any impairment charges.
The fair value of the reporting unit is determined by using an estimate of future cash flows utilizing a risk-adjusted discount rate to calculate the net present value of future cash flows (income approach), and for some years by using a market approach based upon an analysis of valuation metrics of comparable peer companies, using Level 3 fair value inputs as provided for under ASC 820.
The fair value of the reporting unit is determined using a complex valuation model including an estimate of future cash flows utilizing a risk-adjusted discount rate to calculate the net present value of future cash flows (income approach), and for some years by using a market approach based upon an analysis of valuation metrics of comparable peer companies, using Level 3 fair value inputs as provided for under ASC 820.
Our board of directors has authorized share repurchase programs during prior years, the most recent of which occurred in November 2022 for a program of up to $1.5 billion of the company’s common stock.
Our board of directors has authorized share repurchase programs during prior years, the most recent of which occurred in November 2023 for a program of up to $1.5 billion of the company’s common stock.
The share repurchase programs do not require us to acquire any specific number of shares, and may be modified, suspended, extended or terminated by us at any time. The share repurchase programs do not have an expiration date. There were $1.8 billion and $1.1 billion of share repurchases during 2022 and 2021, respectively.
The share repurchase programs do not require us to acquire any specific number of shares, and may be modified, suspended, extended, or terminated by us at any time. The share repurchase programs do not have an expiration date. There were $1.5 billion and $1.8 billion of share repurchases during 2023 and 2022, respectively.
As of December 31, 2022, we had $1.3 billion remaining available to purchase under the November 2022 share repurchase program. See Part II, Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities for additional information.
As of December 31, 2023, we had $1.4 billion remaining available to purchase under the November 2023 share repurchase program. See Part II, Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities for additional information.
Our steel operations sell directly to end-users, steel fabricators, and service centers. These products are used in numerous industry sectors, including the construction, automotive, manufacturing, transportation, heavy and agriculture equipment, and pipe and tube (including OCTG) markets. Steel operations accounted for 65% and 72% of our consolidated net sales during 2022 and 2021, respectively. See Item 1.
Our steel operations sell directly to end-users, steel fabricators, and service centers. These products are used in numerous industry sectors, including the construction, automotive, manufacturing, transportation, heavy and agriculture equipment, energy and pipe and tube (including OCTG) markets. Steel operations accounted for 67% and 65% of our consolidated net sales during 2023 and 2022, respectively. See Item 1.
It is reasonably possible that the amount of unrecognized tax benefits could change in the next twelve months in an amount ranging from zero to $3.3 million, as a result of the expiration of the statute of limitations and other federal and state income tax audits. 44 Table of Contents Liquidity and Capital Resources Capital Resources and Long-term Debt.
It is reasonably possible that the amount of unrecognized tax benefits could change in the next twelve months in an amount ranging from zero to $10.0 million, as a result of the expiration of the statute of limitations and other federal and state income tax audits. 46 Table of Contents Liquidity and Capital Resources Capital Resources and Long-term Debt.
Metals recycling operations accounted for 10% and 12% of our consolidated net sales during 2022 and 2021, respectively.
Metals recycling operations accounted for 12% and 10% of our consolidated net sales during 2023 and 2022, respectively.
Our short-term and long-term liquidity needs arise primarily from working capital requirements, capital expenditures, including expansion projects, principal and interest payments related to our outstanding indebtedness (no significant principal payments until 2024), dividends to our shareholders, and potential stock repurchases and acquisitions or investments.
Our short-term and long-term liquidity needs arise primarily from working capital requirements, capital expenditures, including expansion projects, principal and interest payments related to our outstanding indebtedness, dividends to our shareholders, and potential stock repurchases and acquisitions or investments.
Our steel mills utilize a large portion (approximately 66% in 2022 and 2021) of the ferrous scrap sold by our metals recycling operations as raw material in our steelmaking operations, and the remainder is sold to other consumers, such as other steel manufacturers and foundries.
Our steel mills utilize a large portion of the ferrous scrap sold by our metals recycling operations as raw material in our steelmaking operations, and the remainder is sold to other consumers, such as other steel manufacturers and foundries.
We file income tax returns in the United States federal jurisdiction as well as income tax returns in various state jurisdictions. The tax years 2019 through 2021 remain open to examination by the Internal Revenue Service and various state and local jurisdictions.
We file income tax returns in the United States federal jurisdiction as well as income tax returns in various state jurisdictions. The tax years 2020 through 2022 remain open to examination by the Internal Revenue Service and various state and local jurisdictions.
Included in the balance of unrecognized tax benefits at December 31, 2022, are potential benefits of $25.1 million that, if recognized, would affect the effective tax rate. We recognize interest and penalties related to our tax contingencies on a net-of-tax basis in income tax expense.
Included in the balance of unrecognized tax benefits at December 31, 2023, are potential benefits of $27.8 million that, if recognized, would affect the effective tax rate. We recognize interest and penalties related to our tax contingencies on a net-of-tax basis in income tax expense.
However, environmental laws and regulations evolve and change, and we may become subject to more stringent environmental laws and regulations in the future, such as the impact of United States government or various governmental agencies introducing regulatory changes in response to the potential of climate change.
However, environmental laws and regulations evolve and change, and we may become subject to more stringent environmental laws and regulations in the future, such as the impact of various governmental legislatures and agencies introducing regulatory changes in response to the potential of climate change.
Additionally, we are required to ensure that assumptions used to determine fair value in our analyses are consistent with the assumptions a hypothetical marketplace participant would use.
Additionally, we are required 50 Table of Contents to ensure that assumptions used to determine fair value in our analyses are consistent with the assumptions a hypothetical marketplace participant would use.
During the year ended December 31, 2022, we recognized expense from the increase of interest expense and penalties of $480,000, net of tax. In addition to the unrecognized tax benefits noted above, we had $1.2 million accrued for the payment of interest and penalties at December 31, 2022.
During the year ended December 31, 2023, we recognized expense from the increase of interest expense and penalties of $1.6 million, net of tax. In addition to the unrecognized tax benefits noted above, we had $3.2 million accrued for the payment of interest and penalties at December 31, 2023.
Our goodwill, relating to various business combinations, consisted of the following at December 31 (in thousands): 2022 2021 Steel Operations Segment $ 272,133 $ 272,133 Metals Recycling Operations Segment 228,009 179,777 Steel Fabrication Operations Segment 1,925 1,925 $ 502,067 $ 453,835 At least once annually (as of October 1), or when indicators of impairment exist, the company performs an impairment test for goodwill.
Our goodwill, relating to various business combinations, consisted of the following at December 31 (in thousands): 2023 2022 Steel Operations Segment $ 272,133 $ 272,133 Metals Recycling Operations Segment 203,413 228,009 Steel Fabrication Operations Segment 1,925 1,925 $ 477,471 $ 502,067 At least once annually (as of October 1), or when indicators of impairment exist, the company performs an impairment test for goodwill.
We paid cash dividends of $237.2 million and $213.0 million during 2022 and 2021, respectively. Our board of directors, along with executive management, approves the payment of dividends on a quarterly basis.
We paid cash dividends of $271.3 million and $237.2 million during 2023 and 2022, respectively. Our board of directors, along with executive management, approves the payment of dividends on a quarterly basis.
We consider historical and anticipated future results, general economic and market conditions, the impact of planned business and operational strategies and all other available information at the time the estimates are made. Those estimates and judgments may or may not ultimately prove accurate.
We consider historical and anticipated future results, general economic and market conditions, the impact of planned business and operational strategies and all available information at the time the fair values of its reporting units are estimated. Those estimates and judgments may or may not ultimately prove accurate.
We announced in July our plans to invest $2.5 billion in a new state-of-the-art low-carbon aluminum flat roll mill with two supporting satellite recycled aluminum slab centers, which is planned to be funded by available cash and cash flow from operations. Expenditures began in the third quarter of 2022 and are expected to continue through 2025. Cash Dividends.
We are currently executing our plan to invest $2.7 billion in a new state-of-the-art low-carbon recycled aluminum flat rolled products mill with two supporting satellite recycled aluminum slab centers, which is planned to be funded by available cash and cash flow from operations. Related expenditures began in the third quarter of 2022 and are expected to continue through early 2025.
Net sales for the steel operations segment were 8% higher in 2022 when compared to 2021, due to stable average steel selling prices and record volumes. Metallic raw materials used in our electric arc furnaces represent our single most significant steel manufacturing cost, generally comprising approximately 55% to 65% of our steel mill operations’ manufacturing costs.
Net sales for the steel operations segment were 13% lower in 2023 when compared to historically high prices in 2022, due to lower average steel selling prices more than offsetting record volumes. Metallic raw materials used in our electric arc furnaces represent our single most significant steel manufacturing cost, generally comprising approximately 55% to 65% of our steel mill operations’ manufacturing costs.
Of the costs incurred during 2022 for monitoring and compliance, approximately 70% were related to the normal transportation of certain types of waste produced in our steelmaking processes and other facilities, in accordance with legal requirements. We incurred combined environmental remediation costs of approximately $398,000 at all of our facilities during 2022.
Of the costs incurred during 2023 for monitoring and compliance, approximately 71% were related to the normal transportation of certain types of by-products produced in our steelmaking processes and other facilities, in accordance with legal requirements. We incurred combined environmental remediation costs of approximately $3.1 million at all of our facilities during 2023.
During 2022, income tax expense of $1.1 billion, at an effective income tax rate of 22.7%, increased 19% from the $962.3 million of income tax expense, at an effective income tax rate of 22.9%, during 2021, consistent with increased pretax earnings. Refer to Note 4. Income Taxes to the consolidated financial statements elsewhere in this report for additional information.
During 2023, income tax expense of $751.6 million, at an effective income tax rate of 23.3%, decreased 34% compared to the $1.1 billion, at an effective income tax rate of 22.7%, during 2022, consistent with decreased pretax earnings. Refer to Note 4. Income Taxes to the consolidated financial statements elsewhere in this report for additional information.
As a reflection of continued confidence in our current and future cash flow generation capability and financial position, we increased our quarterly cash dividend by 31% to $0.34 per share in the first quarter of 2022 (from $0.26 per share in 2021), resulting in declared cash dividends of $245.3 million during 2022, compared to $210.9 million during 2021.
As a reflection of continued confidence in our current and future cash flow generation capability and financial position, we increased our quarterly cash dividend by 25% to $0.425 per share in the first quarter of 2023, and continued at that level through the remainder of 2023 (from $0.34 per share in 2022), resulting in declared cash dividends of $280.5 million during 2023, compared to $245.3 million during 2022.
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, redeemable noncontrolling interests, and our total stockholders’ equity) was 27.7% and 32.9% at December 31, 2022, and 2021, respectively, decreasing due to the growth in stockholders’ equity from undistributed 2022 earnings.
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, redeemable noncontrolling interests, and our total stockholders’ equity) was 25.8% and 27.7% at December 31, 2023 and December 31, 2022, respectively.
Due to metal spread compression and additional costs during start-up at Sinton, operating income for the steel operations decreased 29%, to $3.1 billion, in 2022 compared to 2021. 41 Table of Contents Metals Recycling Operations Segment Metals recycling operations includes both ferrous and nonferrous scrap metal processing, transportation, marketing, brokerage, and scrap management services.
Due to this metal spread compression, operating income for the steel operations decreased 39%, to $1.9 billion, in 2023 compared to 2022. 43 Table of Contents Metals Recycling Operations Segment Metals recycling operations includes both ferrous and nonferrous scrap metal processing, transportation, marketing, brokerage, and scrap management services.
The average cost of steel consumed increased 24% in 2022, as compared to 2021. Selling prices per ton increased more than steel input costs per ton, resulting in metal spread (which we define as the difference between average selling prices and the cost of purchased steel) increasing 258% in 2022 compared to 2021.
The average cost of steel consumed decreased 26% in 2023, as compared to 2022. Due to decreased selling prices per ton more than offsetting decreased steel input costs per ton, metal spread (which we define as the difference between average selling prices and the cost of purchased steel) contracted 10% in 2023 compared to 2022.
Our interest coverage ratio is calculated by dividing our last-twelve-months (LTM) consolidated Adjusted EBITDA (earnings before interest, taxes, depreciation, amortization, and certain other non-cash transactions as allowed in the Facility) by our LTM gross interest expense, less amortization of financing fees. In addition, a debt to capitalization ratio of not more than 0.60:1.00 must be maintained.
Our interest coverage ratio is calculated by dividing our last-twelve-months (LTM) consolidated Adjusted EBITDA as defined in the Facility (earnings before interest, taxes, depreciation, amortization, and certain other non-cash transactions as defined in the Facility) by our LTM gross interest expense, less amortization of financing fees.
Our liquidity at December 31, 2022, is as follows (in thousands): Cash and equivalents $ 1,628,417 Short-term investments 628,215 Unsecured revolver availability 1,190,899 Total liquidity $ 3,447,531 Our total outstanding debt of $3.1 billion at December 31, 2022 is consistent with December 31, 2021.
Our liquidity at December 31, 2023, is as follows (in thousands): Cash and equivalents $ 1,400,887 Short-term and other investments 951,873 Unsecured revolver availability 1,190,873 Total liquidity $ 3,543,633 Our total outstanding debt of $3.1 billion is consistent with our total outstanding debt at December 31, 2022.
During 2022, we incurred costs related to the monitoring and compliance of environmental matters in the amount of approximately $47.7 million and capital expenditures related to environmental compliance of approximately $9.8 million.
During 2023, we incurred costs related to the monitoring and compliance of environmental matters in the amount of approximately $54.6 million and capital expenditures related to environmental compliance of approximately $5.4 million.
Our metallic raw material cost consumed in our steel mills increased $28 per net ton, or 6%, in 2022 compared to 2021. As a result of scrap costs increasing more than average selling prices, specifically for sheet steel products, metal spread (which we define as the difference between average steel mill selling prices and the cost of ferrous scrap consumed in our steel mills) decreased slightly in 2022 compared to 2021.
Our metallic raw material cost consumed in our steel mills decreased $61 per net ton, or 13%, in 2023 compared to 2022, consistent with overall decreased domestic scrap pricing noted below in the metals recycling operations segment discussion. As a result of average selling prices decreasing more than scrap costs, specifically for sheet steel products, metal spread (which we define as the difference between average steel mill selling prices and the cost of ferrous scrap consumed in our steel mills) decreased 20% in 2023 compared to 2022.
Estimated interest payments also include a 0.175% commitment fee on our available Revolver, and an average interest rate of 5.5% on our other debt of $63.7 million. Our estimated interest payments are $102.2 million, $98.3 million, $80.3 million, $75.0 million, $54.6 million, for the years 2023 through 2027, respectively, and $393.2 million thereafter. 46 Table of Contents Purchase obligations.
Estimated interest payments also include a 0.15% commitment fee on our available Revolver, and an average interest rate of 7.0% on our other debt of $61.8 million. Our estimated interest payments are $102.2 million, $80.1 million, $74.9 million, $54.5 million, $50.0 million, for the years 2024 through 2028, respectively, and $343.2 million thereafter. 48 Table of Contents Purchase obligations.
Other expense consists of any non-operating costs, such as certain acquisition and financing expenses. 2022 Overview During 2022, domestic steel demand continued to be strong throughout the year, supported most significantly by the construction, automotive, industrial, and energy sectors. Customer steel inventories remained below historical averages for most of the year, allowing for steady order patterns.
Other expense consists of any non-operating costs, such as certain acquisition and financing expenses. 2023 Overview During 2023, underlying domestic steel demand was firm, supported by the construction, automotive, and energy sectors. Customer steel inventories also remained below historical averages, in combination resulting in generally steady order patterns.
At December 31, 2022, our interest coverage ratio and debt to capitalization ratio were 54.42:1.00 and 0.27:1.00, respectively. We were, therefore, in compliance with these covenants at December 31, 2022, and we anticipate we will continue to be in compliance during the next twelve months. Working Capital.
In addition, a debt to capitalization ratio of not more than 0.60:1.00 must be maintained. At December 31, 2023, our interest coverage ratio and debt to capitalization ratio were 36.13:1.00 and 0.26:1.00, respectively. We were, therefore, in compliance with these covenants at December 31, 2023, and we anticipate we will continue to be in compliance during the next twelve months.
This expanded metal spread, coupled with record shipments, resulted in record operating income of $2.4 billion in 2022 compared to $365.3 million in 2021. 43 Table of Contents Other Operations Consolidated Results 2022 vs. 2021 Selling, General and Administrative Expenses.
Metal spread compression coupled with decreased volume resulted in operating income decreasing 34% to $1.6 billion in 2023, compared to $2.4 billion in 2022. 45 Table of Contents Other Operations Consolidated Results 2023 vs. 2022 Selling, General and Administrative Expenses.
Those estimates and judgments may or may not ultimately prove accurate. 48 Table of Contents Goodwill acquired in past transactions are naturally more susceptible to impairment, primarily due to the fact that they are recorded at fair value based on operating plans and economic conditions at the time of acquisition.
Goodwill acquired in past transactions is naturally more susceptible to impairment, primarily due to the fact that they are recorded at fair value based on operating plans and economic conditions at the time of acquisition. Consequently, if operating results and/or economic conditions deteriorate after an acquisition, it could result in the impairment of the acquired asset.
Record net sales for the segment of $4.3 billion increased 141% during 2022, compared to 2021, as shipments increased 8%, and average selling prices increased 123%, or $2,740 per ton. The purchase of various steel products is the largest single cost of production for our steel fabrication operations, historically representing approximately two-thirds of the total cost of manufacturing, increasing to approximately three-fourths during 2022 and 2021 consistent with the historically higher steel costs.
Net sales for the steel fabrication operations decreased 34% during 2023 compared to the record levels during 2022, as average selling prices decreased $740 per ton, or 15%, and volumes decreased 23% from the record volume during 2022. The purchase of various steel products is the largest single cost of production for our steel fabrication operations, historically representing approximately two-thirds of the total cost of manufacturing.
Metals recycling operations operating income in 2022 of $117.3 million decreased $64.7 million, or 36%, from the record in 2021, due to decreased ferrous and nonferrous shipments and metal spread. 42 Table of Contents Steel Fabrication Operations Segment Steel fabrication operations include seven New Millennium Building Systems joist and deck plants located throughout the United States, and in Northern Mexico.
As a result of the overall decreased metals spreads, metals recycling operations operating income decreased 24% to $88.7 million in 2023 compared to 2022. 44 Table of Contents Steel Fabrication Operations Segment Steel fabrication operations include seven New Millennium Building Systems joist and deck plants located throughout the United States, and in Northern Mexico.
The net other income in 2022 compared to net other expense in 2021 was due primarily to an increase in interest income of $28.0 million associated with our increased invested cash and short-term investment balances, as well as an increase in net earnings from equity investments of $18.6 million. Income Tax Expense.
Net other income was $144.2 million in 2023, compared to $20.8 million in 2022, due primarily to an increase in interest income of $88.2 million associated with an increase in invested balances and an increase in yield earned on our invested cash and short-term investments in 2023. Income Tax Expense.
The Facility contains financial covenants and other covenants pertaining to our ability to incur indebtedness and permit liens on certain assets. Our ability to borrow funds within the terms of the unsecured Revolver is dependent upon our continued compliance with the financial and other covenants.
The unsecured Revolver is available to fund working capital, capital expenditures, and other general corporate purposes. The Facility contains financial covenants and other covenants pertaining to our ability to incur indebtedness and permit liens on certain assets.
We generated cash flow from operations of $4.5 billion in 2022 compared to $2.2 billion in 2021.
Working Capital (representing excess of current assets over current liabilities). We generated cash flow from operations of $3.5 billion in 2023 compared to $4.5 billion in 2022.
Our unsecured credit agreement has a senior unsecured revolving credit facility (Facility), which provides a $1.2 billion unsecured Revolver, and matures in December 2024. Subject to certain conditions, we have the opportunity to increase the Facility size by $500.0 million. The unsecured Revolver is available to fund working capital, capital expenditures, and other general corporate purposes.
In the third quarter of 2023, we entered into a new unsecured credit agreement, replacing the previous one, which has a senior unsecured revolving credit facility (Facility), which provides a $1.2 billion Revolver and matures in July 2028. Subject to certain conditions, we have the ability to increase the Facility size by $500.0 million.
Ferrous metal spread (which we define as the difference between average selling prices and the cost of purchased scrap) decreased 2%, while nonferrous metal spread also decreased 2% in 2022 compared to 2021.
Net sales for our metals recycling operations in 2023 were comparable to 2022, as increased shipments were offset by ferrous and nonferrous average selling prices that decreased 7% and 8%, respectively, during 2023 compared to 2022. Ferrous metal spread (which we define as the difference between average selling prices and the cost of purchased scrap) decreased 7% and nonferrous metal spread increased 9% during 2023 compared to 2022.
At December 31, 2022, we had $1.2 billion of availability on the Revolver, $9.1 million of outstanding letters of credit and other obligations which reduce availability, and there were no borrowings outstanding. The financial covenants under our Facility state that we must maintain an interest coverage ratio of not less than 2.50:1.00.
Our ability to borrow funds within the terms of the unsecured Revolver is dependent upon our continued compliance with the financial and other covenants. At December 31, 2023, we had $1.2 billion of availability on the Revolver, $9.1 million of outstanding letters of credit and other obligations which reduce availability, and there were no borrowings outstanding.
Metals Recycling Operations Shipments: Years Ended December 31, 2022 % Change 2021 Ferrous metal (gross tons) Total 5,301,774 (3)% 5,442,478 Inter-company (3,475,662) 3% (3,574,668) External shipments 1,826,112 (2)% 1,867,810 Nonferrous metal (thousands of pounds) Total 1,053,852 (4)% 1,093,472 Inter-company (138,407) (2)% (135,914) External shipments 915,445 (4)% 957,558 Segment Results 2022 vs. 2021 Our metals recycling operations faced a challenging price environment during 2022.
Metals Recycling Operations Shipments: Years Ended December 31, 2023 % Change 2022 Ferrous metal (gross tons) Total 5,779,114 9% 5,301,774 Inter-company (3,579,958) (3,475,662) External shipments 2,199,156 20% 1,826,112 Nonferrous metal (thousands of pounds) Total 1,108,211 5% 1,053,852 Inter-company (157,892) (138,407) External shipments 950,319 4% 915,445 Segment Results 2023 vs. 2022 During 2023, our metals recycling operations continued to benefit from solid domestic steel industry demand, resulting in higher ferrous and nonferrous scrap shipments compared to 2022.
We consider historical and anticipated future results, general economic and market conditions, the impact of planned business and operational strategies and all available information at the time the fair values of its reporting units are estimated.
We consider historical and anticipated future results, general economic and market conditions, the impact of planned business and operational strategies and all other available information at the time the estimates are made. Those estimates and judgments may or may not ultimately prove accurate. There were no indicators of impairment or impairment charges recorded during 2023, 2022, of 2021. Goodwill.
Steel fabrication operations accounted for 19% and 10% of our consolidated net sales during 2022 and 2021, respectively. Segment Results 2022 vs. 2021 Our steel fabrication operations benefited in 2022 from a steady non-residential construction market, as order activity remained strong throughout the year, resulting in record shipments and significantly higher selling prices.
Steel fabrication operations accounted for 15% and 19% of our consolidated net sales during 2023 and 2022, respectively. Segment Results 2023 vs. 2022 Our steel fabrication operations continue to benefit from the solid non-residential construction market, as evidenced by our historically strong order backlog that extends through the first half of 2024.
Net income attributable to Steel Dynamics, Inc. for 2022 increased $648.6 million, or 20%, to $3.9 billion, compared to 2021. Diluted earnings per share attributable to Steel Dynamics, Inc. was $20.92 for 2022, compared to $15.56 for 2021. Refer to Item 7.
Net income attributable to Steel Dynamics, Inc. for 2023 decreased $1.4 billion, or 37%, to $2.5 billion, compared to a record in 2022. Diluted earnings per share attributable to Steel Dynamics, Inc. was $14.64 for 2023, compared to $20.92 for 2022.
We enter 2023 with ample liquidity of $3.4 billion and anticipated operating cash flow generation to provide for our planned 2023 capital requirements, including the four new flat roll coating lines at Sinton and Heartland.
Our liquidity of $3.5 billion and anticipated future operating cash flow generation is sufficient to provide for our planned 2024 capital requirements. Cash Dividends.
During 2022, we invested $908.9 million in property, plant and equipment, primarily within our steel operations segment, compared with $1.0 billion invested during 2021. Spending at Sinton decreased in 2022 versus 2021 as we completed the construction phase in early 2022.
In addition, our $400 million 2.800% senior notes were recorded as current at December 31, 2023. 47 Table of Contents Capital Investments. During 2023, we invested $1.7 billion in property, plant and equipment, primarily within our aluminum operations and steel operations segments, compared with $908.9 million invested during 2022.
The higher interest expense in 2022 compared to 2021 was due to higher capitalized interest in 2021 ($50.5 million, compared to $15.8 million in 2022) related to the construction of Sinton. Other (Income) Expense, net. Net other income was $20.8 million in 2022, compared to net other expense of $34.8 million in 2021.
Interest Expense, net of Capitalized Interest. During 2023, interest expense of $76.5 million decreased 16% from $91.5 million during 2022, due to higher capitalized interest in 2023 ($33.0 million, compared to $15.8 million in 2022) related to our ongoing expansion projects, most notably within Aluminum Operations. Other (Income) Expense, net.
Retirement Plans to the consolidated financial statements elsewhere in this report for further information. Interest Expense, net of Capitalized Interest. During 2022, interest expense of $91.5 million increased 60% from $57.2 million during 2021.
Selling, general and administrative expenses represented 3.1% and 2.5% of net sales during 2023 and 2022, respectively. Companywide profit sharing expense during 2023 of $272.0 million decreased 40% from $452.6 million during 2022, consistent with decreased pretax earnings. Refer to Note 11. Retirement Plans to the consolidated financial statements elsewhere in this report for further information.