Biggest changeAdjusted operating income Year Ended December 31, 2022 (In thousands) Americas International Corporate Consolidated Net sales $ 1,043,238 $ 484,715 $ — $ 1,527,953 GAAP operating income 239,137 Restructuring charges (Note 3) 7,965 Currency exchange losses, net 10,255 Product liability expense (Note 20) 20,590 Acquisition related costs (Note 14) (a) 12,440 Adjusted operating income (loss) 267,392 60,923 (37,928) 290,387 Adjusted operating margin % 25.6 % 12.6 % Depreciation and amortization (a) 34,334 12,256 520 47,110 Adjusted EBITDA 301,726 73,179 (37,408) 337,497 Adjusted EBITDA % 28.9 % 15.1 % 28 Table of Contents Adjusted operating income Year Ended December 31, 2021 (In thousands) Americas International Corporate Consolidated Net sales $ 908,068 $ 492,114 $ — $ 1,400,182 GAAP operating income 22,780 Restructuring charges (Note 3) 16,433 Currency exchange losses, net 216 Product liability expense (Note 20) 185,264 Acquisition related costs (Note 14) (a) 15,884 Adjusted operating income (loss) 202,496 73,279 (35,198) 240,577 Adjusted operating margin % 22.3 % 14.9 % Depreciation and amortization (a) 31,236 13,718 463 45,417 Adjusted EBITDA 233,732 86,997 (34,735) 285,994 Adjusted EBITDA % 25.7 % 17.7 % (a) Acquisition related costs include advisory, legal, accounting, valuation, and other professional or consulting fees incurred during due diligence and integration.
Biggest changeThese costs are included in selling, general and administrative expense in the Consolidated Statements of Income. 30 Table of Contents Adjusted operating income Year Ended December 31, 2022 (In thousands) Americas International Corporate Consolidated Net sales $ 1,043,238 $ 484,715 $ — $ 1,527,953 GAAP operating income 239,137 Restructuring charges (Note 3) 7,965 Currency exchange losses, net 10,255 Product liability expense (Note 20) 20,590 Amortization of acquisition-related intangible assets 9,207 Transaction costs (a) 3,233 Adjusted operating income (loss) 267,392 60,923 (37,928) 290,387 Adjusted operating margin % 25.6 % 12.6 % Depreciation and amortization 34,334 12,256 520 47,110 Adjusted EBITDA 301,726 73,179 (37,408) 337,497 Adjusted EBITDA % 28.9 % 15.1 % (a) Transaction costs include advisory, legal, accounting, valuation, and other professional or consulting fees incurred during acquisitions and divestitures.
Operations in other International segment countries focus primarily on sales and distribution in their respective home country markets. Although some of these companies may perform limited production, most of their sales are of products manufactured in our plants in Germany, France, the U.S., U.K., Ireland and China or are purchased from third-party vendors. Corporate .
Operations in other International segment countries focus primarily on sales and distribution in their respective home country markets. Although some of these companies may perform limited production, most of their sales are of products manufactured in our plants in Germany, France, the U.S., U.K., Ireland, Morocco and China or are purchased from third-party vendors. Corporate .
MSA Safety Incorporated ("MSA") is organized into four geographical operating segments that are aggregated into three reportable geographic segments: Americas, International and Corporate. The Americas segment is comprised of our operations in North America and Latin America geographies. The International segment is comprised of our operations of all geographies outside of the Americas.
MSA Safety Incorporated ("MSA") is organized into four geographical operating segments that are aggregated into three reportable segments: Americas, International and Corporate. The Americas segment is comprised of our operations in North America and Latin America geographies. The International segment is comprised of our operations of all geographies outside of the Americas.
These financial measures include organic constant currency changes, financial measures excluding the impact of acquisitions and related acquisition related costs (including acquisition related amortization), adjusted operating income, adjusted operating margin percentage, adjusted EBITDA and adjusted EBITDA margin percentage.
These financial measures include constant currency changes, financial measures excluding the impact of acquisitions and related acquisition related costs (including acquisition related amortization), adjusted operating income, adjusted operating margin percentage, adjusted EBITDA and adjusted EBITDA margin percentage.
Our actual results could differ materially from the results contemplated by these forward-looking statements due to a number of factors, including those discussed in the sections of this annual report entitled “Forward-Looking Statements” and “Risk Factors.” This section generally discusses the results of our operations for the year ended December 31, 2022 compared to the year ended December 31, 2021.
Our actual results could differ materially from the results contemplated by these forward-looking statements due to a number of factors, including those discussed in the sections of this annual report entitled “Forward-Looking Statements” and “Risk Factors.” This section generally discusses the results of our operations for the year ended December 31, 2023 compared to the year ended December 31, 2022.
The discount rate assumptions used in determining projected benefit obligations for our U.S. and foreign plans were based on the spot rate method at December 31, 2022. Expected returns on plan assets are based on capital market expectations by asset class. The following table summarizes the impact of changes in significant actuarial assumptions on our December 31, 2022 actuarial valuations.
The discount rate assumptions used in determining projected benefit obligations for our U.S. and foreign plans were based on the spot rate method at December 31, 2023. Expected returns on plan assets are based on capital market expectations by asset class. The following table summarizes the impact of changes in significant actuarial assumptions on our December 31, 2023 actuarial valuations.
All goodwill is assigned to and evaluated for impairment at the reporting unit level, which is defined as an operating segment or one level below an operating segment. The evaluation of impairment involves using either a qualitative or quantitative approach as outlined in Accounting Standards Codification ("ASC") Topic 350. In 2022, we performed a quantitative test at October 1, 2022.
All goodwill is assigned to and evaluated for impairment at the reporting unit level, which is defined as an operating segment or one level below an operating segment. The evaluation of impairment involves using either a qualitative or quantitative approach as outlined in Accounting Standards Codification ("ASC") Topic 350. In 2023, we performed a quantitative test at October 1, 2023.
On January 5, 2023, the Company divested Mine Safety Appliances LLC ("MSA LLC") a wholly owned subsidiary that holds legacy product liability claims relating to coal dust, asbestos, silica, and other exposures, to a joint venture between R&Q Insurance Holdings Ltd. and Obra Capital, Inc.
On January 5, 2023, the Company divested Mine Safety Appliances LLC ("MSA LLC") a wholly owned subsidiary that held legacy product liability claims relating to coal dust, asbestos, silica, and other exposures, to a joint venture between R&Q Insurance Holdings Ltd. and Obra Capital, Inc.
Forecasts are based on sales generated by the underlying trade name assets and are generally based on approved business unit operating plans for the early years and historical relationships in later years. At October 1, 2022, based on our quantitative test, the fair value of the trade name asset exceeded its carrying value by approximately 37%.
Forecasts are based on sales generated by the underlying trade name assets and are generally based on approved business unit operating plans for the early years and historical relationships in later years. At October 1, 2023, based on our quantitative test, the fair value of the trade name asset exceeded its carrying value by approximately 39%.
For a discussion on the year ended December 31, 2021 compared to the year ended December 31, 2020, please refer to Part II, Item 7, "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the year ended December 31, 2021 filed with the Securities and Exchange Commission on February 19, 2021.
For a discussion on the year ended December 31, 2022 compared to the year ended December 31, 2021, please refer to Part II, Item 7, "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the Securities and Exchange Commission on February 16, 2023.
At December 31, 2022, approximately 46% of our long-term debt is at fixed interest rates with repayment schedules through 2036. The remainder of our long-term debt is at variable rates on an unsecured revolving credit facility that is due in 2026.
At December 31, 2023, approximately 52% of our long-term debt is at fixed interest rates with repayment schedules through 2036. The remainder of our long-term debt is at variable rates on an unsecured revolving credit facility that is due in 2026.
On October 1st of each year, or more frequently if indicators of impairment exist or if a decision is made to sell a business, we evaluate goodwill for impairment.
On October 1 st of each year, or more frequently if indicators of impairment exist or if a decision is made to sell a business, we evaluate goodwill for impairment.
At December 31, 2022, $589.9 million of the existing $900.0 million senior revolving credit facility was unused, including letters of credit issued under the facility. The facility also provides an accordion feature that allows the Company to access an additional $400.0 million of capacity pending approval by MSA’s board of directors and from the bank group.
At December 31, 2023, $838.1 million of the existing $900.0 million senior revolving credit facility was unused, including letters of credit issued under the facility. The facility also provides an accordion feature that allows the Company to access an additional $400.0 million of capacity pending approval by MSA’s board of directors and from the bank group.
At October 1, 2022, based on our quantitative test, the fair values of each of our reporting units exceeded their respective carrying value by at least 42%. The intangible asset with an indefinite life is also subject to impairment testing on October 1st of each year, or more frequently if indicators of impairment exist.
At October 1, 2023, based on our quantitative test, the fair values of each of our reporting units exceeded their respective carrying value by at least 76%. The intangible asset with an indefinite life is also subject to impairment testing on October 1 st of each year, or more frequently if indicators of impairment exist.
There were no business combinations during 2022. Business combinations. In accordance with the accounting guidance for business combinations, the Company uses the acquisition method of accounting to allocate costs of acquired businesses to the assets acquired and liabilities assumed based on their estimated fair values at the dates of acquisition.
In accordance with the accounting guidance for business combinations, the Company uses the acquisition method of accounting to allocate costs of acquired businesses to the assets acquired and liabilities assumed based on their estimated fair values at the dates of acquisition.
These letters of credit serve to cover customer requirements in connection with certain sales orders and insurance companies. The Company is also required to provide cash collateral in connection with certain arrangements. At December 31, 2022, the Company has $1.5 million of restricted cash in support of these arrangements.
These letters of credit serve to cover customer requirements in connection with certain sales orders and insurance companies. The Company is also required to provide cash collateral in connection with certain arrangements. At December 31, 2023, the Company has $2.0 million of restricted cash in support of these arrangements.
We expect to make net contributions of $8.2 million to our pension plans in 2023 which are primarily associated with our International segment. We have not been required to make contributions to our U.S. based qualified defined benefit pension plan in many years.
We expect to make net contributions of $5.0 million to our pension plans in 2024 which are primarily associated with our International segment. We have not been required to make contributions to our U.S. based qualified defined benefit pension plan in many years.
Please refer to Note 20—Contingencies to the consolidated financial statements in Part II Item 8 of this Form 10-K for further discussion on the Company's product liabilities and divestiture of MSA LLC on January 5, 2023. Income taxes.
Refer to Note 20—Contingencies to the consolidated financial statements in Part II Item 8 of this Form 10-K for further discussion on the Company's product liability claims and divestiture of MSA LLC on January 5, 2023.
CUMULATIVE TRANSLATION ADJUSTMENTS The year-end position of the U.S. dollar relative to international currencies at December 31, 2022, resulted in a translation loss of $19.5 million being recorded to cumulative translation adjustments shareholders' equity account for the year ended December 31, 2022, compared to a translation loss of $25.4 million being recorded to the cumulative translation adjustments account during 2021.
CUMULATIVE TRANSLATION ADJUSTMENTS The year-end position of the U.S. dollar relative to international currencies at December 31, 2023, resulted in a translation gain of $21.7 million being recorded to cumulative translation adjustments shareholders' equity account for the year ended December 31, 2023, compared to a translation loss of $19.5 million being recorded to the cumulative translation adjustments account during 2022.
RECENTLY ADOPTED AND RECENTLY ISSUED ACCOUNTING STANDARDS None 34 Table of Contents
RECENTLY ADOPTED AND RECENTLY ISSUED ACCOUNTING STANDARDS None 36 Table of Contents
Net income was $179.6 million for the year ended December 31, 2022, or $4.56 per diluted share, compared to $21.3 million, or $0.54 per diluted share, for the year ended December 31, 2021. 29 Table of Contents Non-GAAP Financial Information To supplement our Consolidated Financial Statements presented in accordance with generally accepted accounting principles (“GAAP”), we use, and this report includes, certain non-GAAP financial measures.
Net income was $58.6 million for the year ended December 31, 2023, or $1.48 per diluted share, compared to $179.6 million, or $4.56 per diluted share, for the year ended December 31, 2022. 31 Table of Contents Non-GAAP Financial Information To supplement our Consolidated Financial Statements presented in accordance with generally accepted accounting principles (“GAAP”), we use, and this report includes, certain non-GAAP financial measures.
To best serve these customer preferences, we have organized our business into four geographical operating segments that are aggregated into three reportable geographic segments: Americas, International and Corporate. In 2022, 68% and 32% of our net sales were made by our Americas and International segments, respectively. Americas .
To best serve these customer preferences, we have organized our business into four geographical operating segments that are aggregated into three reportable segments: Americas, International and Corporate. In 2023, 69% and 31% of our net sales were made by our Americas and International segments, respectively. Americas .
Adjusted operating income (loss) is reconciled above to the nearest GAAP financial measure, Operating income (loss), and excludes restructuring, currency exchange, product liability expense, and acquisition related costs. Adjusted EBITDA is reconciled above to the nearest GAAP financial measure, Operating income (loss) and excludes depreciation and amortization expense.
Adjusted operating income (loss) is reconciled above to the nearest GAAP financial measure, Operating income (loss), and excludes restructuring, currency exchange, product liability expense, loss on divestiture of MSA LLC, transaction costs and acquisition-related amortization. Adjusted EBITDA is reconciled above to the nearest GAAP financial measure, Operating income (loss) and excludes depreciation and amortization expense.
Adjustments are made to the reserve as appropriate. 32 Table of Contents Cumulative trauma product liability claims involve exposures to harmful substances that occurred over many years and may have developed over long periods of time into diseases.
Adjustments are made to the reserve as appropriate. 34 Table of Contents Cumulative trauma product liability claims relate to the Company's now-divested subsidiary, MSA LLC and involve exposures to harmful substances that occurred over many years and may have developed over long periods of time into diseases.
We expect total interest expense for 2023 to be between $48 million and $50 million. 31 Table of Contents The Company had outstanding bank guarantees and standby letters of credit with banks as of December 31, 2022 totaling $9.3 million, of which $1.5 million relate to the senior revolving credit facility.
We expect total interest expense for 2024 to be approximately $40 million. 33 Table of Contents The Company had outstanding bank guarantees and standby letters of credit with banks as of December 31, 2023 totaling $9.1 million, of which $1.1 million relate to the senior revolving credit facility.
We remain active in evaluating additional acquisition opportunities that will allow us to continue to grow in key end markets and geographies. Financing activities. Financing activities used cash of $113.4 million for the year ended December 31, 2022, compared to providing cash of $203.9 million in 2021.
We remain committed to evaluating additional acquisition opportunities that will allow us to continue to grow in key end markets and geographies. Financing activities. Financing activities used cash of $52.3 million for the year ended December 31, 2023, compared to using cash of $113.4 million in 2022.
We capitalized approximately $8.7 million and $8.1 million of software development costs during the years ended December 31, 2022 and 2021, respectively. Depreciation expense for capitalized software development cost of $7.9 million and $4.9 million during the years ended December 31, 2022 and 2021, was recorded in costs of products sold on the Consolidated Statements of Income.
Amortization expense for capitalized software development cost of $10.4 million and $7.9 million during the years ended December 31, 2023 and 2022, was recorded in costs of products sold on the Consolidated Statements of Income.
We are subject to regular review and audit by both foreign and domestic tax authorities. While we believe our tax positions will be sustained, the final outcome of tax audits and related litigation may differ materially from the tax amounts recorded in our consolidated financial statements. Net income attributable to MSA Safety Incorporated .
We continue to monitor the potential financial impacts and compliance requirements of Pillar 2. We are subject to regular review and audit by both foreign and domestic tax authorities. While we believe our tax positions will be sustained, the final outcome of tax audits and related litigation may differ materially from the tax amounts recorded in our consolidated financial statements.
This compared to restructuring charges of $16.4 million during the year ended December 31, 2021, primarily related to our ongoing initiatives to drive profitable growth and acquisition integration activities. We remain focused on executing programs to optimize our cost structure. Currency exchange .
This compared to restructuring charges of $8.0 million during the year ended December 31, 2022, primarily related to our ongoing international initiatives to drive profitable growth and right size operations. We remain focused on executing programs to optimize our cost structure. Currency exchange .
Interest expense on fixed rate debt over the next five years is expected to be approximately $7.5 million in 2023, $7.3 million in 2024, $7.0 million in 2025, $6.8 million in 2026 and $6.6 million in 2027.
Interest payments on fixed rate debt over the next five years are excluded from the table above and are expected to be approximately $9.8 million in 2024, $9.6 million in 2025, $9.3 million in 2026, $8.5 million in 2027 and $7.0 million in 2028.
Net Sales Year Ended December 31, 2022 versus December 31, 2021 (Percent Change) Americas International Consolidated GAAP reported sales change 14.9% (1.5)% 9.1% Currency translation effects 0.2% 8.5% 3.1% Constant currency sales change 15.1% 7.0% 12.2% Less: Acquisitions (2.8)% (1.6)% (2.3)% Organic constant currency change 12.3% 5.4% 9.9% Note: Constant currency sales change and Organic constant currency sales change are non-GAAP financial measure provided by the Company to give a better understanding of the Company's underlying business performance.
Net Sales Year Ended December 31, 2023 versus December 31, 2022 (Percent Change) Americas International Consolidated GAAP reported sales change 18.4% 13.9% 17.0% Currency translation effects (0.9)% (0.7)% (0.9)% Constant currency sales change 17.5% 13.2% 16.1% Note: Constant currency sales change is a non-GAAP financial measure provided by the Company to give a better understanding of the Company's underlying business performance.
Investing activities. Investing activities used cash of $4.5 million for the year ended December 31, 2022, compared to using $415.5 million in 2021. The decrease in cash used in investing activities as compared to the same period in 2021 was primarily related to the absence of acquisitions.
Investing activities used cash of $40.0 million for the year ended December 31, 2023, compared to using $4.5 million in 2022. The increase in cash used in investing activities as compared to the same period in 2022 was primarily related to the absence of short-term investment activity.
Our significant cash obligations as of December 31, 2022, are as follows: (In millions) Total 2023 2024 2025 2026 2027 Thereafter Long-term debt $ 575.2 $ 7.4 $ 7.4 $ 7.4 $ 316.0 $ 7.4 $ 229.6 Operating leases 52.2 10.0 7.5 5.2 4.1 3.4 22.0 Inventory costing method change tax 8.0 2.7 2.7 2.6 — — — Transition tax 2.0 0.7 1.3 — — — — Totals $ 637.4 $ 20.8 $ 18.9 $ 15.2 $ 320.1 $ 10.8 $ 251.6 The significant obligations table does not include obligations to taxing authorities due to uncertainty surrounding the ultimate settlement of amounts and timing of these obligations.
Our significant cash obligations as of December 31, 2023, are as follows: (In millions) Total 2024 2025 2026 2027 2028 Thereafter Long-term debt $ 604.3 $ 26.5 $ 32.8 $ 256.1 $ 32.8 $ 32.8 $ 223.3 Operating leases 63.9 11.1 9.5 7.9 6.4 5.5 23.5 Inventory costing method change tax 5.3 2.7 2.6 — — — — Transition tax 1.3 1.3 — — — — — Totals $ 674.8 $ 41.6 $ 44.9 $ 264.0 $ 39.2 $ 38.3 $ 246.8 The significant obligations table does not include obligations to taxing authorities due to uncertainty surrounding the ultimate settlement of amounts and timing of these obligations.
During the years ended December 31, 2022, 2021 and 2020 corporate general and administrative costs were $40.3 million, $37.6 million, and $28.5 million, respectively.
During the years ended December 31, 2023, and 2022 corporate general and administrative costs were $52.7 million and $40.3 million, respectively.
Refer to Note 18—Derivative Financial Instruments of the consolidated financial statements in Part II Item 8 of this Form 10-K for information regarding our currency exchange rate risk management strategy. 27 Table of Contents Product liability expense.
During 2022, we also recognized non-cash cumulative translation losses as a result of our plan to close a foreign subsidiary. Refer to Note 18—Derivative Financial Instruments of the consolidated financial statements in Part II Item 8 of this Form 10-K for information regarding our currency exchange rate risk management strategy. 29 Table of Contents Product liability expense.
To the extent that a balance remains when the facility matures in 2026, we expect to refinance the remaining balance through new borrowing facilities.
We expect to generate sufficient operating cash flow to make payments against this amount each year. To the extent that a balance remains when the facility matures in 2026, we expect to refinance the remaining balance through new borrowing facilities.
Net sales for the International segment were $484.7 million for the year ended December 31, 2022, a decrease of $7.4 million, or 1.5%, compared to $492.1 million for the year ended December 31, 2021. Constant currency sales in the International segment increased 7.0% compared to the prior year period with organic constant currency growth of 5.4%.
Net sales for the International segment were $552.1 million for the year ended December 31, 2023, an increase of $67.4 million, or 13.9%, compared to $484.7 million for the year ended December 31, 2022. Constant currency sales in the International segment increased 13.2% compared to the prior year period.
As a result of the transaction, MSA will derecognize all legacy cumulative trauma product liability reserves, related insurance assets, and associated deferred tax assets of the divested subsidiary from its balance sheet in the first quarter of 2023. R&Q and Obra have assumed management of the divested subsidiary, including the management of its claims.
In connection with the closing, MSA contributed $341.2 million in cash and cash equivalents, while R&Q and Obra contributed an additional $35.0 million. As a result of the transaction, MSA derecognized all legacy cumulative trauma product liability reserves, related insurance assets, and associated deferred tax assets of the divested subsidiary from its balance sheet in the first quarter of 2023.
The Company believes our healthy balance sheet and access to significant capital at the year ended December 31, 2022, positions us well to navigate through challenging business conditions. Operating activities. Operating activities provided cash of $157.5 million in 2022, compared to providing cash of $199.1 million in 2021.
We believe MSA's healthy balance sheet and access to significant capital at the year ended December 31, 2023, positions us well to navigate through challenging business conditions and supply chain constraints or other unexpected events. 32 Table of Contents Operating activities. Operating activities provided cash of $92.9 million in 2023, compared to providing cash of $157.5 million in 2022.
Selling, general, and administrative expenses Year Ended December 31, 2022 versus December 31, 2021 (Percent Change) Consolidated GAAP reported change 1.8% Currency translation effects 2.9% Constant currency change 4.7% Less: Acquisitions and strategic transaction costs (0.7)% Organic constant currency change 4.0% Note: Constant currency SG&A change and Organic constant currency SG&A change are non-GAAP financial measure provided by the Company to give a better understanding of the Company's underlying business performance.
Please refer to the Selling, general and administrative expenses table for a reconciliation of the year-over-year expense change. 28 Table of Contents Selling, general, and administrative expenses Year Ended December 31, 2023 versus December 31, 2022 (Percent Change) Consolidated GAAP reported change 17.0% Currency translation effects (0.6)% Constant currency change 16.4% Note: Constant currency SG&A change is a non-GAAP financial measure provided by the Company to give a better understanding of the Company's underlying business performance.
Constant currency sales increased by 12.2% for the year ended December 31, 2022. Please refer to the Net Sales table below for a reconciliation of the year over year sales change.
Please refer to the Net Sales table below for a reconciliation of the year over year sales change.
The more critical judgments and estimates used in the preparation of our consolidated financial statements are discussed in Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations in this Form 10-K for the year ended December 31, 2022. During 2021, the Company made acquisitions that raised business combinations to a critical accounting policy and estimate.
The more critical judgments and estimates used in the preparation of our consolidated financial statements are discussed below. During 2021, the Company made acquisitions that raised business combinations to a critical accounting policy and estimate. There were no business combinations during 2023 or 2022. Business combinations.
Impact of Changes in Actuarial Assumptions Change in Discount Rate Change in Expected Return Change in Market Value of Assets (In thousands) 1% (1)% 1% (1)% 5% (5)% (Decrease) increase in net benefit cost $ (7,875) $ 9,942 $ (5,682) $ 5,682 $ (1,482) $ 1,333 (Decrease) increase in projected benefit obligation (61,274) 77,324 — — — — Increase (decrease) in funded status 61,274 (77,324) — — 25,853 (25,853) 33 Table of Contents Goodwill and Indefinite-lived Intangible Assets.
Impact of Changes in Actuarial Assumptions Change in Discount Rate Change in Expected Return Change in Market Value of Assets (In thousands) 1% (1)% 1% (1)% 5% (5)% (Decrease) increase in net benefit cost $ (906) $ 1,035 $ (5,767) $ 5,767 $ (384) $ 355 (Decrease) increase in projected benefit obligation (55,749) 67,271 — — — — Increase (decrease) in funded status 55,749 (67,271) — — 28,106 (28,106) 35 Table of Contents Goodwill and Indefinite-lived Intangible Assets.
These costs are included in SG&A expense in the unaudited Condensed Consolidated Statements of Income. Acquisition-related costs also include the acquisition related amortization, which is included in Cost of products sold in the Consolidated Statements of Income. Note: Adjusted operating income (loss) and adjusted EBITDA are non-GAAP financial measures.
These costs are included in selling, general and administrative expense in the Consolidated Statements of Income. Note: Adjusted operating income (loss) and adjusted EBITDA are non-GAAP financial measures.
Approximately $308.6 million of debt payable in 2026, included in the table above, relates to our unsecured senior revolving credit facility that has a weighted average interest rate of 5.13% as of December 31, 2022. We expect to generate sufficient operating cash flow to make payments against this amount each year.
We expect to meet our future debt service obligations through cash provided by operations. Approximately $60.8 million of debt payable in 2026, included in the table above, relates to our unsecured senior revolving credit facility that has a weighted average interest rate of 6.22% as of December 31, 2023.
R&Q and Obra have assumed management of the divested subsidiary, including the management of its claims. The divestiture enhances operating cash flow predictability by eliminating costs associated with defending and settling the transferred claims. 30 Table of Contents Please refer to Note 20—Contingencies of the consolidated financial statements in Part II Item 8 of this Form 10-K for additional information.
R&Q and Obra have assumed management of the divested subsidiary, including the management of its claims. Refer to Note 20—Contingencies of the consolidated financial statements in Part II Item 8 of this Form 10-K for further information. 26 Table of Contents BUSINESS OVERVIEW MSA is the global leader in advanced safety products, technology and solutions.
Research and development expense was $57.0 million for the year ended December 31, 2022, a decrease of $0.8 million, or 1.4%, compared to $57.8 million for the year ended December 31, 2021. Research and development expense was 3.7% of net sales in 2022, compared to 4.1% of net sales in 2021.
Research and development expense was 3.8% of net sales in 2023, compared to 3.7% of net sales in 2022. We capitalized approximately $12.1 million and $8.7 million of software development costs during the years ended December 31, 2023 and 2022, respectively.
These factors include, among other things, supply chain constraints, raw material or semiconductor availability, the risk of additional COVID lockdowns, industrial employment rates, interest rate changes, military conflict, currency exchange volatility, the pace of economic recovery, as well as geopolitical risk, particularly as it relates to energy uncertainty which could affect operations and suppliers based in Germany and broader Europe.
These factors include, among other things, supply chain constraints, raw material availability, industrial employment rates, interest rate changes, military conflict, currency exchange volatility, the pace of economic recovery, and geopolitical risk. These or other conditions could impact our future results and growth expectations into 2024.
Refer to Note 20—Contingencies of the consolidated financial statements in Part II Item 8 of this Form 10-K for further information. On July 1, 2021, the Company acquired Bacharach, Inc. and its affiliated companies ("Bacharach") in a transaction valued at $329.4 million, net of cash acquired.
Refer to Note 20— Contingencies to consolidated financial statements in Part II Item 8 of this Form 10-K for further information on the MSA LLC divestiture.
Please refer to Note 20—Contingencies of the consolidated financial statements in Part II Item 8 of this Form 10-K for additional information. GAAP operating income. Consolidated operating income for the year ended December 31, 2022 was $239.1 million compared to $22.8 million for the year ended December 31, 2021.
Refer to Note 8—Segment Information to the consolidated financial statements in Part II Item 8 of this Form 10-K, for information regarding sales by product group. Gross profit. Gross profit for the year ended December 31, 2023 was $852.1 million, an increase of $178.3 million, or 26.5%, compared to $673.8 million for the year ended December 31, 2022.
Corporate segment adjusted operating loss for the year ended December 31, 2022 was $37.9 million, an increase of $2.7 million, or 8%, compared to an adjusted operating loss of $35.2 million for the year ended December 31, 2021 due primarily to increased costs to support higher business activity.
Corporate segment adjusted operating loss for the year ended December 31, 2023 was $51.6 million, an increase of $13.7 million, or 36%, compared to an adjusted operating loss of $37.9 million for the year ended December 31, 2022 due primarily to higher performance based compensation expense related to sales growth and improved results from prior year.
We expect total interest expense for 2023 to be between $48 million and $50 million, this increase is primarily related to the additional long-term debt to divest MSA LLC as of January 5, 2023. We expect non-cash pension income to decline by $8 million compared to 2022. Income taxes.
We expect total interest expense for 2024 to be approximately $40 million, this decrease is primarily related to significant long-term debt payments made during 2023. We expect non-cash pension income to increase by $2 million compared to 2023. Income taxes.
At December 31, 2022, approximately 82% of our borrowings are denominated in US dollars, which limits our exposure to currency exchange rate fluctuations. At December 31, 2022, the Company had cash and cash equivalents, including restricted cash, totaling $164.4 million, and access to sufficient capital, providing ample liquidity and flexibility to continue to maintain our balanced capital allocation strategy.
At December 31, 2023, the Company had cash and cash equivalents, including restricted cash, totaling $148.4 million, and access to sufficient capital, providing ample liquidity and flexibility to continue to maintain our balanced capital allocation strategy that prioritizes growth investments, funding our dividends and servicing debt obligations.
There are a number of other evolving factors that will continue to influence our revenue and earnings outlook.
We expect to have greater visibility in the first half of the year and we will continue to be agile in the event the operating environment differs meaningfully from our expectations. There are a number of other evolving factors that will continue to influence our revenue and earnings outlook.
These increases primarily reflect an increase in centrally managed functions. 25 Table of Contents Year Ended December 31, 2022 Compared to Year Ended December 31, 2021 Net Sales 2022 2021 Dollar Increase (Decrease) Percent Increase (Decrease) (In millions) Consolidated $1,527.9 $1,400.2 $127.7 9.1% Americas 1,043.2 908.1 135.1 14.9% International 484.7 492.1 (7.4) (1.5)% Net Sales.
These increases reflect an increase in centrally managed functions and is primarily the result of higher variable compensation expense related to sales growth and improved performance results from prior year. 27 Table of Contents Year Ended December 31, 2023 Compared to Year Ended December 31, 2022 Net Sales 2023 2022 Dollar Increase Percent Increase (In millions) Consolidated $1,787.7 $1,527.9 $259.8 17.0% Americas 1,235.6 1,043.2 192.4 18.4% International 552.1 484.7 67.4 13.9% Net Sales.
Total spend on both software development and research and development activities was $65.7 million and $65.9 million during the years ended December 31, 2022 and 2021. Restructuring charges. During the year ended December 31, 2022, the Company recorded restructuring charges of $8.0 million primarily related to our ongoing international initiatives to drive profitable growth and right size operations.
Total spend on both software development and research and development activities was $80.1 million and $65.7 million during the years ended December 31, 2023 and 2022. Restructuring charges.
Total other expense, net, for the year ended December 31, 2022, was $0.6 million, a decrease of $1.4 million compared to other income, net, of $0.8 million for the year ended December 31, 2021, driven primarily by higher interest expense, related to rising interest rate environment, and a write-down of an equity investment, partially offset by higher pension income, resulting from higher expected rate of return on plan assets.
Total other expense, net, for the year ended December 31, 2023, was $24.6 million, an increase of $24.0 million compared to $0.6 million for the year ended December 31, 2022, due primarily to increased interest expense related to higher interest rates and increased debt balances associated with the MSA LLC divestiture as well as decreased pension income driven by a lower expected rate of return.
Product liability expense during the year ended December 31, 2022 was $20.6 million compared to $185.3 million for the year ended December 31, 2021. Product liability expense for both periods primarily relates to increases in MSA LLC's reserve for cumulative trauma product liability claims and defense costs incurred for these claims.
This compared to $20.6 million for the year ended December 31, 2022, which related primarily to defense costs incurred for cumulative trauma product liability claims as well as an increase in MSA LLC's reserve for cumulative trauma product liability claims resulting from the annual valuation. Loss on divestiture of MSA LLC .
During 2022, we had net payments on long-term debt of $13.0 million as compared to net proceeds on long-term debt of $293.2 million during the same period in 2021 to fund the acquisitions of Bacharach and Bristol and buy-out our minority partner in our China business.
During 2023, we had net proceeds on long-term debt of $23.9 million to fund the MSA LLC divestiture as compared to net payments on long-term debt of $13.0 million during the same period in 2022. Since the MSA LLC divestiture in January 2023, we have paid down $289.0 million of our outstanding borrowings.
Net sales for the year ended December 31, 2022, were $1.53 billion, an increase of $127.7 million, from $1.40 billion for the year ended December 31, 2021, driven by strategic price increases, volume growth, and acquisitions, partially offset by foreign currency translation. We saw strong growth across most of our core products and across both reporting segments.
Net sales for the year ended December 31, 2023, were $1.8 billion, an increase of $0.3 billion, from $1.5 billion for the year ended December 31, 2022, driven by volume growth and pricing actions. We saw healthy growth across product categories and both reporting segments. Constant currency sales increased by 16.1% for the year ended December 31, 2023.
Pricing and productivity efforts were partially offset by inflation, inventory and product warranty charges. 26 Table of Contents Selling, general and administrative expenses. Selling, general and administrative ("SG&A") expenses were $338.9 million for the year ended December 31, 2022, an increase of $6.0 million, or 1.8%, compared to $332.9 million for the year ended December 31, 2021.
Selling, general and administrative ("SG&A") expenses were $396.6 million for the year ended December 31, 2023, an increase of $57.7 million, or 17.0%, compared to $338.9 million for the year ended December 31, 2022. Overall, selling, general and administrative expenses were 22.2% of net sales in both periods.
The increase in adjusted operating income is primarily attributable to higher sales volumes driven by the full year impact of the Bacharach acquisition and organic business activity, partially offset by higher SG&A expenses to support business growth.
Americas adjusted operating income for the year ended December 31, 2023 was $359.6 million, an increase of $92.2 million or 34%, compared to $267.4 million for the year ended December 31, 2022. The increase in adjusted operating income is primarily attributable to higher sales and gross profit, partially offset by higher SG&A expenses to support business growth.
Gross profit for the year ended December 31, 2022 was $673.8 million, an increase of $58.5 million, or 9.5%, compared to $615.3 million for the year ended December 31, 2021. The ratio of gross profit to net sales was 44.1% in 2022 compared to 43.9% in 2021.
International adjusted operating income for the year ended December 31, 2023 was $89.7 million, an increase of $28.8 million, or 47%, compared to adjusted operating income of $60.9 million for the year ended December 31, 2022. The increase in adjusted operating income is primarily attributable to higher sales and gross profit.
Constant currency SG&A change is calculated by deducting the percentage impact from currency translation effects from the overall percentage change in SG&A. Organic constant currency SG&A change is calculated by deducting the percentage impact from acquisitions and related strategic transaction costs and currency translation effects from the overall percentage change in SG&A. Research and development expense.
Constant currency SG&A change is calculated by deducting the percentage impact from currency translation effects from the overall percentage change in SG&A. Research and development expense. Research and development expense was $68.0 million for the year ended December 31, 2023, an increase of $11.0 million, or 19.3%, compared to $57.0 million for the year ended December 31, 2022.
Net sales for the Americas segment were $1,043.2 million for the year ended December 31, 2022, an increase of $135.1 million, or 14.9%, compared to $908.1 million for the year ended December 31, 2021. During 2022, constant currency sales in the Americas segment increased 15.1% or on an organic constant currency basis increased 12.3%, excluding acquisitions.
Constant currency sales change is calculated by deducting the percentage impact from currency translation effects from the overall percentage change in net sales. Net sales for the Americas segment were $1.2 billion for the year ended December 31, 2023, an increase of $0.2 billion, or 18.4%, compared to $1.0 billion for the year ended December 31, 2022.
Overall, selling, general and administrative expenses were 22.2% of net sales in 2022 compared to 23.8% of net sales in 2021. Organic constant currency SG&A increased $13 million or 4.0%, demonstrating leverage on revenue growth. This increase was driven by wage inflation and strategic investments to support revenue growth.
Constant currency SG&A increased $55 million or 16.4%, to support our revenue growth. The increase in SG&A was driven by the higher level of sales, increased variable compensation and inflation.
As a result of the transaction, we will derecognize in the first quarter of 2023 all legacy cumulative trauma product liability reserves, related insurance assets, and associated deferred tax assets of the divested subsidiary from our balance sheet and recognize a loss of approximately $200 million.
The $129.2 million pre-tax loss on divestiture of MSA LLC for the year ended December 31, 2023 relates to the derecognition of all legacy cumulative trauma product liability reserves and related insurance assets of the divested subsidiary during the first quarter of 2023.
In the case of MSA LLC, the subsidiary's combined cumulative trauma product liability reserve is based upon estimates of its liability for asserted and IBNR cumulative trauma product liability claims.
Prior to the divestiture, MSA LLC's cumulative trauma product liability reserve was based upon an estimate of MSA LLC’s then current and potential future liability for cumulative trauma product liability claims, in accordance with applicable accounting principles.
Refer to Note 14—Acquisitions of the consolidated financial statements in Part II Item 8 of this Form 10-K for further information. During July 2021, the Company purchased the remaining 10% noncontrolling interest in MSA (China) Safety Equipment Co., Ltd. from our former China partner for $19.0 million, inclusive of a $5.6 million distribution.
The loss also includes a $341.2 million contribution of cash and cash equivalents, as well as transaction related costs of $5.6 million. Refer to Note 20—Contingencies to the consolidated financial statements in Part II Item 8 of this Form 10-K for further information. GAAP operating income.
We paid cash dividends of $71.5 million during 2022, compared to $68.6 million, exclusive of a $5.6 million dividend to our former noncontrolling interest partner in China as part of the buy-out, during 2021. We also used cash of $34.4 million during 2022 to repurchase shares, compared to using $6.2 million during the same period in 2021.
We paid cash dividends of $73.5 million during 2023, compared to $71.5 million during 2022. We used cash of $4.0 million during 2023 to repurchase shares related to our employee stock compensation transactions. We used cash of $34.4 million during 2022, including $30.4 million related to our share repurchase program with the remainder related to employee stock compensation transactions.