BORGWARNER INC

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

NOTE 1 BASIS OF PRESENTATION

The accompanying unaudited Condensed Consolidated Financial Statements of BorgWarner Inc. and Consolidated Subsidiaries (the “Company”) have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. Accordingly, they do not include all of the information and footnotes necessary for a comprehensive presentation of financial position, results of operations and cash flow activity required by GAAP for complete financial statements. In the opinion of management, all normal recurring adjustments necessary for a fair statement of results have been included. Certain prior period amounts have been reclassified to conform to the current period presentation. Operating results for the three and nine months ended September 30, 2025 are not necessarily indicative of the results that may be expected for the year ending December 31, 2025. The balance sheet as of December 31, 2024 was derived from the audited financial statements as of that date. For further information, refer to the Consolidated Financial Statements and Footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.

Management makes estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and accompanying notes, as well as the amounts of revenues and expenses reported during the periods covered by those financial statements and accompanying notes. Actual results could differ from these estimates.

On July 3, 2023, BorgWarner completed the previously announced spin-off (“Spin-Off”) of its Fuel Systems and Aftermarket segments in a transaction intended to qualify as tax free to the Company’s stockholders for U.S. federal income tax purposes, which was accomplished by the distribution of 100% of the outstanding common stock of PHINIA, Inc. (“PHINIA”) to holders of record of common stock of the Company on a pro-rata basis.

In connection with the Spin-Off, the Company entered into several agreements with PHINIA on or prior to the Distribution Date that, among other things, provide a framework for the Company’s relationship with PHINIA after the Spin-Off, including a separation and distribution agreement, an employee matters agreement, a tax matters agreement, an intellectual property cross-license agreement and a transition services agreement through which the Company and PHINIA continued to provide certain services to each other following the Spin-Off. In December 2024, the Company and PHINIA executed an amendment to the original transition services agreement to extend certain engineering services, which continued through September 30, 2025. The transition services agreement expired and all related services ended on September 30, 2025.

NOTE 2 NEW ACCOUNTING PRONOUNCEMENTS

In December 2023, the FASB issued Accounting Standard Updates (“ASU”) No. 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” It requires entities to disaggregate information related to the effective tax rate reconciliation and income taxes paid. The standard improves transparency by providing more detailed income tax disclosures that would be useful in making capital allocation decisions. This guidance is effective for annual reporting periods beginning after December 15, 2024. The ASU will modify the Company’s financial statement disclosures on an annual basis beginning with the 2025 Annual report on Form 10-K however, it will not have a significant impact on its consolidated financial statements.

In November 2024, the FASB issued ASU No. 2024-03, “Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” It requires entities to disclose, in the notes to financial statements, specified information related to certain costs and expenses disaggregated by type. The standard improves transparency by providing more detailed information about the components of costs and expenses that would enable investors to better understand the major components of an entity’s income statement by referencing specific disclosures in the notes to financial statements. This guidance is effective for annual reporting periods beginning after December 15, 2026 and interim periods within fiscal years beginning after December 15, 2027. The Company does not expect this guidance to have a material impact on its Consolidated Financial Statements other than related incremental disclosures.

In July 2025, the FASB issued ASU No. 2025-05, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets.” The standard provides entities with a practical expedient and accounting policy election when estimating expected credit losses on current accounts receivable and current contract assets arising from transactions under FASB Accounting Standards Codification Topic 606, “Revenue From Contracts With Customers”, including assets acquired in a business combinations. This guidance is effective for annual reporting periods beginning after December 15, 2025 including interim reporting periods within those annual reporting periods. The Company intends to apply the practical expedient and does not expect this guidance to have a material impact on its Consolidated Financial Statements.

In September 2025, the FASB issued ASU No. 2025-06, “Intangibles - Goodwill and Other - Internal Use Software (Subtopic 350-40): Targeted Improvements to the Accounting for Internal Use Software.” The standard modernizes and simplifies guidance for internal-use software costs. This guidance is effective for annual reporting periods beginning after December 15, 2027 including interim reporting periods within those annual reporting periods. The Company is evaluating the impact of this guidance on its Consolidated Financial Statements.

NOTE 3 ACQUISITIONS AND DISPOSITIONS

Acquisitions

In accordance with Accounting Standards Codification (“ASC”) Topic 805, “Business Combinations,” acquisitions are recorded using the acquisition method of accounting. The Company recognizes and measures the acquisition date fair value of the identifiable assets acquired, liabilities assumed and any non-controlling interest using a range of methodologies as indicated by generally accepted valuation practices. Various valuation techniques are used to determine the fair value of intangible assets, with the primary techniques being forms of the income approach, specifically the relief-from-royalty and multi-period excess earnings valuation methods. Under these valuation approaches, the Company is required to make estimates and assumptions from a market participant perspective and may include revenue growth rates, estimated earnings, royalty rates, obsolescence factors, contributory asset charges, customer attrition and discount rates.

Due to the insignificant size of the Company’s 2023 and 2022 acquisitions, both individually and in the aggregate, relative to the Company, supplemental pro forma financial information for the current and prior reporting periods is not provided.

Hubei Surpass Sun Electric Charging Business

On March 1, 2023, the Company completed its acquisition of 100% of the electric vehicle solution, smart grid and smart energy businesses (“SSE”) of Hubei Surpass Sun Electric, pursuant to an Equity Transfer

Agreement. The acquisition was expected to complement the Company’s existing European and North American charging footprint by adding a presence in China. The total consideration was ¥288 million ($42 million), including ¥268 million ($39 million) of base purchase price and ¥20 million ($3 million) of estimated earn-out payments. The Company paid ¥217 million ($31 million) of base purchase price in the year ended December 31, 2023. The Company paid ¥25 million ($4 million) during the year ended December 31, 2024. In accordance with ASC Topic 230, the payments made in 2024 were classified as financing activities in the Company’s Condensed Consolidated Statement of Cash Flows, as they occurred more than three months after the acquisition closing date. During the three months ended March 31, 2025, the Company recorded a post-closing adjustment of ¥6 million ($1 million) following the review of final closing payment details. The remaining ¥20 million ($3 million) of base purchase price was originally payable before October 31, 2025 and is now payable before March 31, 2026 due to ongoing negotiations, and was recorded in Other current liabilities in the Company’s Condensed Consolidated Balance Sheet as of September 30, 2025 and December 31, 2024.

Pursuant to the agreement, the Company’s obligation to remit up to ¥103 million ($15 million) of earn-out payments is contingent upon the achievement of certain revenue and pre-tax profit margin targets in 2023 and 2024, as well as the retention of key employees during the same time period. During the year ended December 31, 2024, the Company paid ¥10 million ($1 million) of earn-out-related amounts. During the nine months ended September 30, 2025, the Company paid the remaining earn-out of approximately ¥10 million ($2 million).

As described further below, in February 2025, the Company made the decision to exit its charging business within the Battery & Charging Systems reportable segment, which included SSE.

Drivetek AG

On December 1, 2022, the Company completed its acquisition of 100% of Drivetek AG (“Drivetek”), an engineering and product development company located in Switzerland. This acquisition strengthens the Company’s power electronics capabilities in auxiliary inverters, which has helped to accelerate the growth of its High Voltage eFan business. The total consideration was ₣37 million ($39 million), including ₣27 million ($29 million) of base purchase price and ₣10 million ($10 million) of estimated earn-out payments. The Company paid ₣27 million ($29 million) of base purchase price at closing. The Company’s obligation to remit up to ₣10 million ($10 million) of earn-out payments, over thethree years following closing, is contingent upon achievement of estimated future sales targets associated with newly awarded business and future turnover rate targets. During the nine months ended September 30, 2025, the Company paid ₣2 million ($2 million) of earn-out-related amounts. As of September 30, 2025, the Company’s estimate of the remaining earn-out payments was approximately ₣2 million ($3 million), which is recorded in Other current liabilities in the Company’s Condensed Consolidated Balance Sheet.

Dispositions

Exit of Charging Business

In February 2025, the Company made the decision to exit its charging business within the Battery & Charging Systems reportable segment. This decision was made following the Company’s continuing evaluation of its product portfolio and future investments. Production operations ceased during the second quarter of 2025.

The majority of the charging business related to the SSE business, which was marketed for sale and met the criteria to be reported as held-for-sale as of March 31, 2025. The SSE business sale closed in the second quarter of 2025 with proceeds totaling approximately $7 million. During the nine months ended September 30, 2025, the Company recorded charges of $22 million related to the loss on the sale of the SSE business. The other locations within the charging business ceased operations during the second quarter of 2025 and did not meet the criteria to be reported as held-for-sale. The Company’s exit of its charging business did not meet the criteria for presentation as a discontinued operation.

During the nine months ended September 30, 2025, the Company recorded charges of $32 million related to the exit of its charging business within the Battery & Charging Systems reportable segment. These charges primarily included the previously mentioned $22 million loss on the sale of the SSE business during the nine months ended September 30, 2025 which was recorded in Other operating expense, net, and the write off of $9 million of inventory during the nine months ended September 30, 2025, which was recorded in Cost of sales in the Condensed Consolidated Statements of Operations. In addition, the Company recorded charges totaling $39 million during the nine months ended September 30, 2025, which included impairments of intangible assets, goodwill and fixed assets of $22 million, $13 million and $4 million, respectively. Refer to Note 11, “Goodwill And Other Intangibles,” to the Condensed Consolidated Financial Statements for more information.

NOTE 4 REVENUE FROM CONTRACTS WITH CUSTOMERS

The Company manufactures and sells products, primarily to OEMs of light vehicles and, to a lesser extent, to other OEMs of commercial vehicles and off-highway vehicles, to certain tier one vehicle systems suppliers and into the aftermarket. The Company’s payment terms are based on customary business practices and vary by customer type and products offered. The Company evaluated the terms of its arrangements and determined that they do not contain significant financing components.

Generally, revenue is recognized upon shipment or delivery; however, a limited number of the Company’s customer arrangements for its highly customized products with no alternative use provide the Company with the right to payment during the production process. As a result, for these limited arrangements, revenue is recognized as goods are produced and control transfers to the customer using the input cost-to-cost method. The Company recorded a contract asset of $15 million at September 30, 2025 and December 31, 2024 for these arrangements. These amounts are reflected in Prepayments and other current assets in the Company’s Condensed Consolidated Balance Sheets.

In limited instances, certain customers have provided payments in advance of receiving related products, typically at the onset of an arrangement prior to the beginning of production. These contract liabilities are reflected as Other current liabilities and Other non-current liabilities in the Condensed Consolidated Balance Sheets and were $7 million and $36 million at September 30, 2025, and $13 million and $29 million at December 31, 2024, respectively. These amounts are reflected as revenue over the term of the arrangement (typically three toseven years) as the underlying products are shipped and represent the Company’s remaining performance obligations as of the end of the period.

The Company continually seeks business development opportunities and, at times, provides customer incentives for new program awards. When the Company determines that the payments are incremental and incurred only if the new business is obtained and expects to recover these amounts from the customer over the term of the new business arrangement, the Company capitalizes these amounts. As of September 30, 2025 and December 31, 2024, the Company recorded customer incentive payments of $11 million and $22 million, respectively, in Prepayments and other current assets, and $11 million and $23 million, respectively, in Other non-current assets on the Condensed Consolidated Balance Sheets. The Company evaluates the amounts capitalized each period end for recoverability and writes off any amounts that are no longer expected to be recovered over the term of the business arrangement. During the nine months ended September 30, 2025, the Company wrote off a $7 million customer incentive asset.

The Company’s products can be disaggregated by two types: eProducts and Foundational products. eProducts include all products utilized on or for electric vehicles (“EVs”) plus those same products and components that are included in hybrid powertrains whose underlying technologies are adaptable or applicable to those used in or for EVs. Foundational products include all products utilized on internal combustion engines plus those same products and components that are also included in hybrid powertrains. The following table represents a disaggregation of revenue from contracts with customers by Foundational products and eProducts for the three and nine months ended September 30, 2025 and 2024.

The following tables represent a disaggregation of revenue from contracts with customers by reportable segment and region. Refer to Note 22, “Reportable Segments,” to the Condensed Consolidated Financial Statements for more information.

NOTE 5 RESTRUCTURING

The Company undertakes restructuring activities, as necessary, to execute management’s strategy and streamline operations, consolidate and take advantage of available capacity and resources and ultimately achieve net cost reductions. Restructuring activities include efforts to integrate and rationalize the Company’s business and to relocate operations to best-cost locations.

The Company’s restructuring expenses consist primarily of employee termination benefits (principally severance and/or termination benefits) and other costs, which are primarily professional fees and costs related to facility closures and exits.

The following tables display the Company’s restructuring expense by reportable segment:

The following tables display rollforwards of the restructuring liability recorded within the Company’s Condensed Consolidated Balance Sheets and the related cash flow activity:

2024 Structural Cost Plan In June 2024, the Company approved an approximately $75 million restructuring plan to address the cost structure in its PowerDrive Systems segment due to electric vehicle adoption volatility across different regions, which could include realignment of the segment’s manufacturing footprint. During the three and nine months ended September 30, 2025, the Company recorded $12 million and $29 million, respectively, of restructuring charges related to this plan. During the three and nine months ended September 30, 2024, the Company recorded $3 million and $13 million, respectively, of restructuring charges related to this plan. Cumulatively, the Company has incurred $42 million of restructuring charges related to this plan.

2023 Structural Cost Plan In 2023, the Company announced a $130 million to $150 million restructuring plan to address structural costs primarily in its Foundational products businesses. During the nine months ended September 30, 2025, the Company recorded $8 million of restructuring costs related to this plan. During the three and nine months ended September 30, 2024, the Company recorded $18 million and $52 million, respectively, of restructuring charges related to this plan. Cumulatively, the Company has incurred $148 million of restructuring charges related to this plan. The actions under this plan are complete.

During the three and nine months ended September 30, 2025, the Company recorded $11 million and $34 million, respectively, of restructuring costs for individually approved restructuring actions, as more fully described below.

There have been no changes in previously initiated plans that have resulted (or are expected to result) in a material change to the Company’s restructuring costs.

The following provides details of restructuring expense incurred by the Company’s reportable segments during the three and nine months ended September 30, 2025 and 2024, related to the plans discussed above:

Turbos & Thermal Technologies

•During the nine months ended September 30, 2025, the segment recorded $7 million of restructuring costs under this plan. These costs primarily related to $5 million of employee termination benefits and $2 million of professional fees for facilities in Europe and China.

•During the three and nine months ended September 30, 2024, the segment recorded $15 million and $30 million, respectively, of restructuring costs under this plan. These costs primarily related to $16 million of employee termination benefits and $14 million of professional fees and equipment relocation costs for facilities in Europe and China.

Other Actions

•During the three and nine months ended September 30, 2025, the Company recorded $5 million and $15 million, respectively, of restructuring costs for individually approved restructuring actions. These costs primarily related to $13 million of employee termination benefits and $2 million of contractual settlement expense for facilities in Europe and China.

Drivetrain & Morse Systems

•During the three and nine months ended September 30, 2024, the segment recorded $1 million and $11 million, respectively, of restructuring costs under this plan. These costs primarily related to $10 million of employee termination benefits for facilities in Europe and the U.S.

Other Actions

•During the three and nine months ended September 30, 2025, the Company recorded $1 million and $2 million, respectively, of restructuring costs for individually approved restructuring actions related to equipment relocation costs for a facility in the U.S.

PowerDrive Systems

2024 Structural Cost Plan

•During the three and nine months ended September 30, 2025, the segment recorded $12 million and $29 million, respectively, of restructuring costs under this plan. These costs primarily related to $19 million of employee termination benefits and $10 million of equipment relocation costs for facilities in the U.S., Mexico, Asia and Europe.

•During the three and nine months ended September 30, 2024, the segment recorded $3 million and $13 million, respectively, of restructuring costs under this plan. These costs primarily related to $9 million of employee termination benefits and $4 million of professional fees.

•During the three and nine months ended September 30, 2024, the segment recorded $2 million and $9 million, respectively, of restructuring costs under this plan, primarily related to $8 million contract cancellations and equipment relocation costs.

Battery & Charging Systems

•During the three and nine months ended September 30, 2025, the segment recorded $5 million and $16 million, respectively, of individually approved restructuring costs. These costs primarily related to $13 million of employee termination benefits and $3 million of contract cancellations and professional fees for facilities in the U.S and China, including the consolidation of the Company’s North American battery systems business footprint and the exit of its charging business. Refer to Note 3, “Acquisitions and Dispositions” for more information.

Estimates of restructuring expense are based on information available at the time such charges are recorded. Due to the inherent uncertainty involved in estimating restructuring expenses, actual amounts paid for such activities may differ from amounts initially recorded. Accordingly, the Company may record revisions of previous estimates by adjusting previously established accruals.

The Company continues to evaluate different options across its operations to reduce existing structural costs over the next few years. The Company will recognize restructuring expense associated with any future actions at the time they are approved and become probable or are incurred. Any future actions could result in significant restructuring expense.

NOTE 6 RESEARCH AND DEVELOPMENT COSTS

The Company’s net Research & Development (“R&D”) expenditures are included in Selling, general and administrative expenses in the Condensed Consolidated Statements of Operations. Customer reimbursements are netted against gross R&D expenditures as they are considered a recovery of cost. Customer reimbursements for prototypes are recorded net of prototype costs based on customer contracts, typically either when the prototype is shipped or when it is accepted by the customer. Customer reimbursements for engineering services are recorded when performance obligations are satisfied in accordance with the contract. Financial risks and rewards transfer upon shipment, acceptance of a prototype component by the customer or upon completion of the performance obligation, as stated in the respective customer agreement. The Company has contracts with several customers relating to R&D activities that the Company performs at the Company’s various R&D locations.

The following table presents the Company’s gross and net expenditures on R&D activities:

NOTE 7 OTHER OPERATING EXPENSE, NET

Items included in Other operating expense, net consist of:

Legal settlement: During the three and nine months ended September 30, 2025, the Company recorded a charge of $38 million, related to a legal settlement, inclusive of associated legal fees. Refer to Note 20, “Contingencies,” to the Condensed Consolidated Financial Statements for more information.

Costs to exit charging business: During the nine months ended September 30, 2025, the Company recorded charges of $23 million related to the exit of its charging business within the Battery & Charging Systems reportable segment. Refer to Note 3, “Acquisitions and Dispositions,” and Note 11, “Goodwill And Other Intangibles,” to the Condensed Consolidated Financial Statements for more information.

Chief Executive Officer ("CEO") transition compensation: During the three and nine months ended September 30, 2025, the Company recorded charges of $5 million and $11 million, respectively, related to duplicative compensation.

Adjustments associated with Spin-Off related balances: During the three and nine months ended September 30, 2025, the Company recorded expense of $8 million and $7 million, respectively, primarily for adjustments related to the contract manufacturing agreement with PHINIA and adjustments to net amounts owed to the Company related to the tax matters agreement between the Company and PHINIA, unrelated to the legal settlement discussed above. During the three and nine months ended September 30, 2024, the Company recorded expense of $3 million and $14 million, respectively, primarily for adjustments to net amounts owed to the Company related to the tax matters agreement between the Company and PHINIA.

Loss on sale of assets: During the three and nine months ended September 30, 2025, the Company recorded a loss of $1 million and $6 million, respectively, related to the sale of equipment from a closed facility in North America.

Merger and acquisition expense, net: During the three and nine months ended September 30, 2025, the Company recorded merger and acquisition expense, net of $2 million and net of $4 million, respectively, primarily related to professional fees associated with specific acquisition initiatives. During the three months ended September 30, 2024, the Company recorded a gain related to merger and acquisition activity of $5 million, primarily due to $6 million revision of its expected earn-out-related to the Drivetek acquisition, offset by expense primarily related to professional fees associated with specific acquisition initiatives.

Loss on sale of businesses: During the three and nine months ended September 30, 2025, the Company recorded a net loss of $1 million and $2 million, respectively, related to a business closure in North America, plant disposal in China and the sale of an operation in Europe. During the three and nine months ended September 30, 2024, the Company recorded a net loss on sales of businesses of $6 million and $3 million, respectively, related to the estimated loss on an immaterial business that met held for sale accounting criteria.

Collective bargaining agreement ratification bonus: During the three months ended September 30, 2024, the Company recorded $4 million of expense for bonuses related to the ratification of a collective bargaining agreement at a facility in the State of New York.

Commercial contract settlement: During the nine months ended September 30, 2024, the Company recorded a loss of approximately $15 million related to the settlement of a commercial contract assumed in its 2023 acquisition of the electric hybrid systems business segment of Eldor Corporation.

NOTE 8 INCOME TAXES

The Company’s provision for income taxes is based upon an estimated annual tax rate for the year applied to federal, state and foreign income. On a quarterly basis, the annual effective tax rate is adjusted, as appropriate, based upon changed facts and circumstances, if any, as compared to those forecasted at the beginning of the fiscal year and each interim period thereafter.

The Company’s effective tax rate for the three months ended September 30, 2025 and 2024 was 30% and 5%, respectively. During the three months ended September 30, 2025, the Company recorded a discrete tax expense of $7 million related to various changes in filing positions for prior years and a discrete tax benefit of $6 million related to the exit of the charging business. During the three months ended September 30, 2024, the Company recorded a discrete tax benefit of $18 million related to a reduction in certain unrecognized tax benefits and accrued interest for matters where the statute of limitations lapsed, a discrete tax expense of $4 million related to net changes to valuation allowances, a discrete tax benefit of $36 million related to post Spin-Off restructuring and a discrete tax benefit of $1 million related to various changes in filing positions for prior years.

The Company’s effective tax rate for the nine months ended September 30, 2025 and 2024 was 25% and 5%, respectively. During the nine months ended September 30, 2025, the Company recorded a discrete tax benefit of $12 million related to the exit of the charging business, a discrete tax expense of $4 million related to net changes to valuation allowances and a discrete tax expense of $3 million related to various changes in filing positions for prior years. During the nine months ended September 30, 2024, the

Company recorded a discrete tax benefit of $107 million related to reductions in certain unrecognized tax benefits and accrued interest for matters where the statute of limitations lapsed, a discrete tax benefit of $36 million related to post Spin-Off restructuring and a discrete tax benefit of $4 million related to various changes in filing positions for prior years.

The Company’s annual effective tax rates differ from the U.S. statutory rate primarily due to foreign rates that vary from those in the U.S., jurisdictions with pretax losses for which no tax benefit could be realized, U.S. taxes on foreign earnings, the realization of certain business tax credits (including foreign tax credits) and permanent differences between book and tax treatment for certain items (including the Foreign-Derived Intangible Income (“FDII”) deduction and the enhanced deduction of research and development expenses in certain jurisdictions).

The One Big Beautiful Bill Act (the “Bill”) was enacted on July 4, 2025 and focuses on extending and enhancing several business-friendly tax measures originally introduced in the 2017 Tax Cuts and Jobs Act. Notably, the Bill restores 100% bonus depreciation for qualified property placed in service after January 19, 2025, allowing businesses to fully expense capital investments immediately. Additionally, the Bill suspends the requirement to capitalize and amortize domestic research and experimental (“R&E”) expenditures, allowing immediate expensing through a new Section 174A for tax years beginning after December 31, 2024. Internationally, it adjusts deductions for Global Intangible Low-Taxed Income (“GILTI”) and FDII to maintain lower effective tax rates and prevents scheduled increases. The Company determined that the enactment of the Bill did not have a material impact to its Consolidated Financial Statements.

NOTE 9 INVENTORIES

A summary of Inventories is presented below:

NOTE 10 OTHER ASSETS

Additional detail related to assets is presented below:

NOTE 11 GOODWILL AND OTHER INTANGIBLES

Goodwill is the excess of the purchase price over the estimated fair value of identifiable net assets acquired in business combinations. As of September 30, 2025, the Company hadfour reportable segments andfour goodwill reporting units. During the fourth quarter of each year, the Company assesses its goodwill and indefinite-lived intangible assets assigned to each of its reporting units. In addition, the Company may test goodwill in between annual test dates if an event occurs or circumstances change that could more-likely-than-not reduce the fair value of a reporting unit below its carrying value.

During the first quarter of 2025, as a result of the Company’s plan to exit the charging business, the Company separately allocated the goodwill from its historical reporting unit of Battery & Charging Systems to the battery systems business and to the charging business on a relative fair value basis. The Company estimated the allocated fair values of the businesses from the historical reporting unit based upon the present value of their anticipated future cash flows. The estimated fair value of the charging business was determined using a cost approach. The Company’s determination of fair value involved judgment and the use of estimates and assumptions. During the nine months ended September 30, 2025, the relative fair value analysis resulted in an allocation, and subsequent impairment, of $13 million related to the goodwill allocated to the charging business. Refer to Note 3, “Acquisitions and Dispositions,” to the Condensed Consolidated Financial Statements for more information.

In conjunction with the goodwill allocation in the first quarter of 2025, the Company performed a quantitative impairment assessment of the Battery & Charging Systems’ goodwill after the impairment of the charging business’ goodwill. The estimated fair value of the battery systems business was determined using an income approach, consistent with the Company’s analysis performed during the fourth quarter of 2024. The most critical assumptions used in the calculation of the fair value of the battery systems business were projected revenue growth rates, projected operating income and discount rates. Based on this interim impairment test, the Battery & Charging Systems reporting unit had an estimated fair value that exceeded its carrying value, including goodwill, by approximately 18%, resulting in no impairment.

The fair value of the Battery & Charging Systems reporting unit’s goodwill is sensitive to differences between estimated and actual cash flows, including changes in the projected revenue, projected operating margin and discount rate used to evaluate the fair value of these assets and market multiples assumptions applied by the Company. Future changes in the judgments, assumptions and estimates from those used in valuations and goodwill impairment testing, including discount rates or future operating results and related cash flow projections, could result in significantly different estimates of the fair values in the future. An increase in discount rates, a reduction in projected cash flows or a combination of the two could lead to a reduction in the estimated fair values, which may result in impairment charges that could materially affect the Company’s financial statements in any given year.

Additionally, as a result of the Company’s exit of the charging business, during the nine months ended September 30, 2025, the Company impaired $22 million of other intangible assets.

Other than as described above, the Company noted no events or circumstances related to any of the Company’s reporting units in the three and nine months ended September 30, 2025 that required additional assessment or testing.

A summary of the changes in the carrying amount of goodwill is as follows:

The Company’s other intangible assets, primarily from acquisitions, consist of the following:

NOTE 12 PRODUCT WARRANTY

The Company provides warranties on some, but not all, of its products. The warranty terms are typically fromone tothree years. Provisions for estimated expenses related to product warranty are made at the time products are sold. These estimates are established using historical information about the nature, frequency and average cost of warranty claim settlements, as well as product manufacturing and industry developments and recoveries from third parties. The Company actively studies trends of warranty claims and takes action to improve product quality and minimize warranty claims. The Company believes that the warranty accrual is appropriate; however, actual claims incurred could differ from the original estimates, requiring adjustments to the accrual. The product warranty accrual is allocated to current and non-current liabilities in the Condensed Consolidated Balance Sheets.

The following table summarizes the activity in the product warranty accrual accounts:

The product warranty liability is classified in the Condensed Consolidated Balance Sheets as follows:

During the three and nine months ended September 30, 2025, the Company recognized an insurance recovery of $21 million related to a resolved historical warranty matter as a reduction of Cost of sales in the Condensed Consolidated Statements of Operations. The related insurance proceeds were uncollected as of September 30, 2025, and included in Receivables, net in the Condensed Consolidated Balance Sheet.

NOTE 13 DEBT

As of September 30, 2025 and December 31, 2024, the Company had debt outstanding as follows:

On March 15, 2025, the Company’s 3.375% senior notes matured and were repaid in accordance with the terms of the indenture.

The Company may utilize uncommitted lines of credit for short-term working capital requirements. As of September 30, 2025 and December 31, 2024, the Company had $3 million and $61 million, respectively, in borrowings under these facilities, which are classified in Short-term debt in the Condensed Consolidated Balance Sheets. The short-term borrowings primarily relate to a European money market loan with an interest rate of Euribor plus 1.75% that is callable upon immediate notice by either party.

The following table provides details on Interest expense, net included in the Condensed Consolidated Statements of Operations:

The Company has a $2 billion multi-currency revolving credit facility that allows the Company to increase the facility by $1 billion with bank group approval. This facility matures in September 2028. The credit agreement contains customary events of default and one key financial covenant which is a debt-to-EBITDA (Earnings Before Interest, Taxes, Depreciation and Amortization) ratio. The Company was in compliance with the financial covenant at September 30, 2025. At September 30, 2025 and December 31, 2024, the Company hadno outstanding borrowings under this facility.

The Company’s commercial paper program allows the Company to issue up to $2 billion of short-term, unsecured commercial paper notes under the limits of its multi-currency revolving credit facility. Under this program, the Company may issue notes from time to time and use the proceeds for general corporate purposes. The Company hadno outstanding borrowings under this program as of September 30, 2025 and December 31, 2024.

The total current combined borrowing capacity under the multi-currency revolving credit facility and commercial paper program cannot exceed $2 billion.

As of September 30, 2025 and December 31, 2024, the estimated fair values of the Company’s senior unsecured notes totaled $3,689 million and $3,797 million, respectively. The estimated fair values were $173 million lower than their carrying value at September 30, 2025 and $257 million lower than their carrying value at December 31, 2024. Fair market values of the senior unsecured notes are developed using observable values for similar debt instruments, which are considered Level 2 inputs as defined by ASC Topic 820. The carrying values of the Company's multi-currency revolving credit facility, commercial paper program and other debt facilities approximate fair value. The fair value estimates do not necessarily reflect the values the Company could realize in the current markets.

The Company had outstanding letters of credit of $37 million and $29 million at September 30, 2025 and December 31, 2024, respectively. The letters of credit typically act as guarantees of payment to certain third parties in accordance with specified terms and conditions.

NOTE 14 OTHER LIABILITIES

Additional detail related to liabilities is presented in the table below:

NOTE 15 FAIR VALUE MEASUREMENTS

ASC Topic 820 emphasizes that fair value is a market-based measurement, not an entity-specific measurement. Therefore, a fair value measurement should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering market participant assumptions in fair value measurements, ASC Topic 820 establishes a fair value hierarchy, which prioritizes the inputs used in measuring fair values as follows:

Level 1: Observable inputs such as quoted prices for identical assets or liabilities in active markets;

Level 2: Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and

Level 3: Unobservable inputs for which there is little or no market data, which require the reporting entity to develop its own assumptions.

Assets and liabilities measured at fair value are based on one or more of the following three valuation techniques noted in ASC Topic 820:

A. Market approach: Prices and other relevant information generated by market transactions involving identical or comparable assets, liabilities or a group of assets or liabilities, such as a business.

B. Cost approach: Amount that would be required to replace the service capacity of an asset (replacement cost).

C. Income approach: Techniques to convert future amounts to a single present amount based upon market expectations (including present value techniques, option-pricing and excess earnings models).

The following tables classify assets and liabilities measured at fair value on a recurring basis as of September 30, 2025 and December 31, 2024:

1 Certain assets that are measured at fair value using the net asset value (“NAV”) per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. These amounts represent investments in commingled and managed funds that have underlying assets in fixed income securities, equity securities and other assets and the fair values have been estimated using the net asset value of the Company's ownership interest in partners' capital. The Company’s redemption of its investments with the funds is governed by the partnership agreements and subject to approval from the general partners. With the exception of annual distributions in connection with the Company’s deemed tax liability, distributions from each fund will be received as the underlying investments of the funds are liquidated, the timing of which is unknown.

The following table provides a reconciliation of the Company’s Level 3 earn-out assets and liabilities:

Refer to Note 3, “Acquisitions and Dispositions,” to the Condensed Consolidated Financial Statements for more information regarding earn-outs.

NOTE 16 FINANCIAL INSTRUMENTS

The Company’s financial instruments include cash and cash equivalents, marketable securities and accounts receivable. Due to the short-term nature of these instruments, their book value approximates their fair value. The Company’s financial instruments may also include long-term debt, investments in equity securities, interest rate and cross-currency swaps, commodity derivative contracts and foreign currency derivative contracts. All derivative contracts are placed with counterparties that have an S&P, or equivalent, investment grade credit rating at the time of the contracts’ placement. An adjustment for non-performance risk is considered in the estimate of fair value in derivative assets based on the counterparty credit default swap (“CDS”) rate. When the Company is in a net derivative liability position, the non-performance risk adjustment is based on its CDS rate. At September 30, 2025 and December 31, 2024, the Company had no derivative contracts that contained credit-risk-related contingent features.

Cash Flow Hedges

The Company, at times, uses certain commodity derivative contracts to protect against commodity price changes related to forecasted raw material and component purchases. At September 30, 2025 and December 31, 2024, the Company had no material commodity derivative contracts.

The Company manages its interest rate risk by balancing its exposure to fixed and variable rates while attempting to optimize its interest costs. The Company, at times, selectively uses interest rate swaps and options to reduce market value risk associated with changes in interest rates. At September 30, 2025 and December 31, 2024, the Company had no outstanding interest rate swaps or options.

The Company uses foreign currency forward and option contracts to protect against exchange rate movements for forecasted cash flows, including capital expenditures, purchases, operating expenses or sales transactions designated in currencies other than the functional currency of the operating unit. Foreign currency derivative contracts require the Company, at a future date, to either buy or sell foreign currency in exchange for the operating units’ local currency.

Effectiveness for cash flow hedges is assessed at the inception of the hedging relationship and quarterly, thereafter. Gains and losses arising from these contracts that are included in the assessment of effectiveness are deferred into accumulated other comprehensive income (loss) (“AOCI”) and reclassified into income as the underlying operating transactions are recognized. These realized gains or losses offset the hedged transaction and are recorded on the same line in the statement of operations. The initial value of any component excluded from the assessment of effectiveness is recognized in income using a systematic and rational method over the life of the hedging instrument. Any difference between the change in fair value of the excluded component and amounts recognized in income under that systematic and rational method is recognized in AOCI.

At September 30, 2025, the following notional amounts related to foreign currency derivative contracts were outstanding, which mature through September 2027:

Net Investment Hedges

In addition, the Company is also exposed to the risk that adverse changes in foreign currency exchange rates could impact its net investment in non-U.S. subsidiaries.

The Company selectively uses cross-currency swaps to hedge that foreign currency exposure. At September 30, 2025 and December 31, 2024, the following cross-currency swap contracts were outstanding and mature through August 2030:

During the nine months ended September 30, 2025, the Company unwound $700 million of cross-currency swap contracts originally maturing in July 2027, resulting in a cash outflow of approximately $4 million. The corresponding loss is expected to remain in accumulated other comprehensive income until the net investment is sold, completely liquidated or substantially liquidated. Concurrently, the Company executedtwo U.S. Dollar to Euro cross-currency swap contracts of $500 million maturing in July 2028 and $200 million maturing in August 2030.

In addition, the Company has designated the €1,000 million 1.000% Senior Notes due May 19, 2031, as a net investment hedge of the foreign currency exposure of its investments in certain Euro-denominated subsidiaries. Refer to Note 13, “Debt,” to the Condensed Consolidated Financial Statements for more information.

The Company assesses the effectiveness for net investment hedges at the inception of the hedging relationship and quarterly, thereafter. Gains and losses arising from these contracts that are included in the assessment of effectiveness are deferred into foreign currency translation adjustments and only released when the subsidiary being hedged is sold or substantially liquidated. The initial value of any component excluded from the assessment of effectiveness is recognized in income using a systematic and rational method over the life of the hedging instrument. Any difference between the change in fair value of the excluded component and amounts recognized in income under that systematic and rational method is recognized in AOCI.

Fair Value of Derivative Instruments in the Balance Sheet

At September 30, 2025 and December 31, 2024, the following amounts were recorded in the Condensed Consolidated Balance Sheets as being payable to or receivable from counterparties for derivative instruments under ASC Topic 815, “Derivatives and Hedging”:

Effect of Derivatives on the Statements of Operations and Statements of Comprehensive Income (Loss)

The table below shows deferred gains (losses) reported in AOCI as well as the amount expected to be reclassified to income in one year or less for designated hedges. The amount expected to be reclassified to income in one year or less assumes no change in the current relationship of the hedged item at September 30, 2025 market rates.

Derivative instruments designated as hedging instruments as defined by ASC Topic 815 held during the period resulted in the gains and losses recorded in income shown in the table below.

The were no gains or losses recorded in income related to components excluded from the assessment of effectiveness for derivative instruments designated as cash flow hedges for the periods presented.

Gains and losses on derivative instruments designated as net investment hedges were recognized in other comprehensive income (loss) during the periods presented below.

Derivatives designated as net investment hedge instruments, as defined by ASC Topic 815, held during the period resulted in the following gains recorded in Interest expense on components excluded from the assessment of effectiveness:

There were no gains or losses recorded in income related to components excluded from the assessment of effectiveness for foreign currency-denominated debt designated as net investment hedges. There were no gains and losses reclassified from AOCI for net investment hedges during the periods presented.

Derivatives Not Designated as Hedges

Derivatives not designated as hedging instruments are used to hedge remeasurement exposures of monetary assets and liabilities denominated in currencies other than the operating units’ functional currency. These derivatives resulted in gains (losses) recorded in income as shown in the table below.

NOTE 17 RETIREMENT BENEFIT PLANS

The Company has defined benefit pension plans and other postemployment benefit plans covering eligible salaried and hourly employees and their dependents. The Company expects to contribute a total of approximately $25 million into its defined benefit pension plans during 2025, of which $17 million has been contributed through the nine months ended September 30, 2025. The other postemployment benefit plans, which provide medical and life insurance benefits, are funded on a pay-as-you-go basis.

The components of net periodic benefit expense recorded in the Condensed Consolidated Statements of Operations are as follows:

The components of net periodic benefit expense other than the service cost component are included in Other postretirement expense in the Condensed Consolidated Statements of Operations.

In August 2025, the Company executed an amendment to the plan document of one of the Company’s U.S. defined benefit pension plans (“U.S. Pension Plan”) to terminate the plan effective October 31, 2025. The termination of the U.S. Pension Plan is expected to take up to eighteen months to complete. As part of the termination process, the Company expects to settle benefit obligations under the U.S. Pension Plan through a combination of lump sum payments to eligible plan participants and the purchase of a group annuity contract, under which future benefit obligations and administration will be transferred to a third-party insurance company. Such settlements will be funded primarily from plan assets. At December 31, 2024, the fair value of the U.S. Pension Plan’s assets exceeded projected benefit obligation by $8 million under U.S. GAAP.

In December 2024, the Company entered into a second buy-in contract with an insurance company related to its U.K. pension plan (the first buy-in contract was entered into in 2019). Pursuant to this agreement, the Company liquidated approximately $50 million of pension plan assets to invest in an insurance annuity. At December 31, 2024, the U.K. pension plan had plan assets of $118 million, of which 83% were held by the insurance company and invested in insurance annuities. The remaining plan assets of 17% were held in cash and transferred to the insurance company in 2025. The projected benefit obligation of the U.K. pension plan at December 31, 2024 was $98 million under U.S. GAAP. The U.K. pension plan was overfunded by $20 million as of December 31, 2024, under U.S. GAAP.

NOTE 18 STOCKHOLDERS' EQUITY

The changes of the Stockholders’ Equity items during the three and nine months ended September 30, 2025 and 2024, are as follows:

• Per share dividends amount declared relate to BorgWarner common stock.

NOTE 19 ACCUMULATED OTHER COMPREHENSIVE LOSS

The following tables summarize the activity within accumulated other comprehensive loss during the three and nine months ended September 30, 2025 and 2024.

NOTE 20 CONTINGENCIES

In the normal course of business, the Company is party to various commercial and legal claims, actions and complaints, including matters involving warranty claims, intellectual property claims, governmental investigations and related proceedings, general liability and other risks. It is not possible to predict with certainty whether the Company will ultimately be successful in any of these commercial and legal matters or what the impact might be. The Company does not believe that adverse outcomes in any of these commercial and legal claims, actions and complaints are reasonably likely to have a material adverse effect on the Company’s results of operations, financial position or cash flows. An adverse outcome could, nonetheless, be material to the results of operations or cash flows as the ultimate resolutions of these matters are inherently unpredictable.

On September 19, 2024, the Company commenced a lawsuit in Delaware Superior Court against PHINIA, seeking to recover from PHINIA approximately $120 million of value added tax (“VAT”) refunds that PHINIA has received or expects to receive from governmental agencies as well as damages and interest, which PHINIA refused to pay to the Company. These refunds consist of VAT paid by the Company in periods prior to or directly related to the Spin-Off that established PHINIA as an independent company. PHINIA responded to the lawsuit and also asserted counterclaims against the Company. On October 15, 2025, the Company entered into a settlement agreement (the “Settlement Agreement”) with PHINIA, pursuant to which PHINIA agreed to pay the Company $78 million, resolving the lawsuit and certain other matters relating to the Spin-Off. In connection with the Settlement Agreement, the Company and PHINIA have also entered into an amended and restated tax matters agreement that, among other things, limits the Company’s responsibility to certain defined tax obligations. As a result, during the three and nine months ended September 30, 2025, the Company recorded a net charge of $38 million, for the reduction of VAT-related receivables, the elimination of certain Company liabilities under the amended and restated tax matters agreement and related legal fees, which is included in Other operating expense, net in the Company’s Condensed Consolidated Statements of Operations. As of September 30, 2025, after giving effect to the Settlement Agreement, the Company had assets related to these VAT refunds of approximately $52 million and $26 million included in Receivables, net and Investments and long-term receivables, respectively, in the Company’s Condensed Consolidated Balance Sheet.

Environmental

The Company and certain of its current and former direct and indirect corporate predecessors, subsidiaries and divisions have been identified by the United States Environmental Protection Agency and certain local environmental agencies and private parties as potentially responsible parties (“PRPs”) at various hazardous waste disposal sites under the Comprehensive Environmental Response, Compensation and Liability Act (“Superfund”) and equivalent state or local laws and, as such, may have been liable for the cost of clean-up and other remedial activities at 16 and 17 such sites as of September 30, 2025 and December 31, 2024, respectively. Responsibility for clean-up and other remedial activities at a Superfund site is typically shared among PRPs based on an allocation formula.

The Company believes that none of these matters, individually or in the aggregate, will have a material adverse effect on its results of operations, financial position or cash flows. Generally, this is because either the estimates of the maximum potential liability at a site are not material or the liability will be shared with other PRPs, although no assurance can be given with respect to the ultimate outcome of any such matter.

The Company had an accrual for environmental liabilities of $5 million as of both September 30, 2025 and December 31, 2024, included in Other current and Other non-current liabilities in the Condensed Consolidated Balance Sheets. As of September 30, 2025, this accrual, which relates tofour of the sites, is based on information available to the Company (which, in most cases, includes an estimate of allocation of liability among PRPs; the probability that other PRPs, many of which are large, solvent public companies, will fully pay the cost apportioned to them; currently available information from PRPs and/or federal or local environmental agencies concerning the scope of contamination and estimated remediation and consulting costs; and remediation alternatives). Clean-up and other remedial activities are complete or nearing completion at the other 12 sites, for which there was no accrual as of September 30, 2025.

NOTE 21 EARNINGS PER SHARE

The Company presents both basic and diluted earnings per share of common stock (“EPS”) amounts. Basic EPS is calculated by dividing net earnings attributable to BorgWarner Inc. by the weighted average shares of common stock outstanding during the reporting period. Diluted EPS is calculated by dividing net earnings attributable to BorgWarner Inc. by the weighted average shares of common stock and common stock equivalents outstanding during the reporting period.

The dilutive impact of stock-based compensation is calculated using the treasury stock method. The treasury stock method assumes that the Company uses the assumed proceeds from the exercise of awards to repurchase common stock at the average market price during the period. The assumed proceeds under the treasury stock method include the purchase price that the grantee will pay in the future and compensation cost for future service that the Company has not yet recognized. The dilutive effects of performance-based stock awards are included in the computation of diluted earnings per share at the level the related performance criteria are met through the respective balance sheet date. There were 1.4 million and 1.0 million performance share units excluded from the computation of the diluted earnings for the three months ended September 30, 2025 and 2024, respectively. There were 1.3 million and 0.9 million performance share units excluded from the computation of the diluted earnings for the nine months ended September 30, 2025 and 2024, respectively. These units were excluded because the related performance criteria had not been met as of the balance sheet dates.

The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share of common stock:

NOTE 22 REPORTABLE SEGMENTS

The Company discloses segment information under four reportable segments: Turbos & Thermal Technologies, Drivetrain & Morse Systems, PowerDrive Systems and Battery & Charging Systems. Thefour reportable segments are consistent with the operating segments that are evaluated by management, including the chief operating decision maker (“CODM”). The Company’s CODM is its Chief Executive Officer. The reportable segments are further described below. These segments are strategic business groups that are managed separately as each represents a specific grouping of related automotive components and systems.

As further described in Note 3, “Acquisitions and Dispositions,” in February 2025, the Company made the decision to exit its charging business within the Battery & Charging Systems reportable segment. This plan did not result in a change to the Company’s reportable segments.

Segment Adjusted Operating Income (Loss) is the measure of segment income or loss used by the Company. Segment Adjusted Operating Income (Loss) is comprised of operating income for the Company’s reportable segments adjusted to exclude restructuring, merger, acquisition and divestiture expense, intangible asset amortization expense, impairment charges and other items not reflective of ongoing operating income or loss. The Company believes Segment Adjusted Operating Income (Loss) is most reflective of the operational profitability or loss of our reportable segments.

The Company’s CODM uses Segment Adjusted Operating Income (Loss) and the expenses disclosed below to assess the performance of its reportable segments. The CODM uses this information to assist with decisions about future growth, capital investments and cost reduction initiatives by reviewing trends in the business, monitoring variances to historical results and previously forecasted information and performing other analytical comparisons.

The following tables show net sales, segment expenses, Segment Adjusted Operating Income (Loss) and other segment information for the Company’s reportable segments. The segment expenses do not include non-comparable items that are excluded in the calculation of Segment Adjusted Operating Income (Loss):

Net Sales and Expenses by Reportable Segment

1 Other segment items include other income and expenses to derive at segment adjusted operating income.

Segment Adjusted Operating Income (Loss)

1 Accelerated depreciation represents charges related to property, plant and equipment that were decommissioned or are in the process of being decommissioned.

2 Refer to Note 7, “Other operating expense (income), net,” to the Condensed Consolidated Financial Statements for more information.

Segment information

1 Long-lived asset expenditures include capital expenditures and tooling outlays.

2 Corporate assets include cash and cash equivalents, investments and long-term receivables and deferred income taxes.

NOTE 23 OPERATING CASH FLOWS AND OTHER SUPPLEMENTAL FINANCIAL INFORMATION

NOTE 24 DISCONTINUED OPERATIONS

In connection with the Spin-Off, the Company entered into a transition services agreement through which the Company and PHINIA have continued to provide certain services to each other following the Spin-Off such as information technology, human resources, finance, facilities, procurement, sales, intellectual property and engineering. In December 2024, the Company and PHINIA executed an amendment to the original transition services agreement to extend certain engineering services, which continued through September 30, 2025. The transition services agreement expired and all related services ended on September 30, 2025. The combined impact of these services is reported in results of continuing operations in the Condensed Consolidated Financial Statements. During the three and nine months ended September 30, 2025, there wereno activities related to those services. During the nine months ended September 30, 2024, the Company provided services at a cost of $7 million to PHINIA and PHINIA provided services at a cost of $2 million to the Company.

The Company incurred an expense of $4 million and $28 million related to the Spin-Off during the three and nine months ended September 30, 2024, respectively. These costs are reflected within Net loss from discontinued operations in the Company’s Condensed Consolidated Statements of Operations. Spin-Off costs are primarily comprised of professional fees and costs to separate certain operational activities, including costs to separate information technology systems which substantially concluded as of December 31, 2024.