10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 _________________________________________

FORM 10-Q

 _________________________________________

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2023

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number 001-31225

 _________________________________________ 

ENPRO INDUSTRIES, INC.

(Exact name of registrant, as specified in its charter)

_____________________________________  

North Carolina	01-0573945
(State or other jurisdiction of incorporation)	(I.R.S. Employer Identification No.)
5605 Carnegie Boulevard
Suite 500
Charlotte
North Carolina	28209
(Address of principal executive offices)	(Zip Code)

(704) 731-1500

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

__________________________________________

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, $0.01 par value	NPO	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ý    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ý

As of April 27, 2023, there were 20,878,123 shares of common stock of the registrant outstanding, which does not include 178,646 shares of common stock held by a subsidiary of the registrant and accordingly are not entitled to be voted. There is only one class of common stock.

PART I

FINANCIAL INFORMATION

 Item 1.    Financial Statements

ENPRO INDUSTRIES, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)

Three Months Ended March 31, 2023 and 2022

(in millions, except per share amounts)

	2023		2022
Net sales	$	282.6	$	270.1
Cost of sales	166.5		175.4
Gross profit	116.1		94.7
Operating expenses:
Selling, general and administrative	71.5		71.7
Other	0.8		1.3
Total operating expenses	72.3		73.0
Operating income	43.8		21.7
Interest expense	(11.7)		(7.1)
Interest income	3.8		0.2
Other income (expense)	(1.8)		0.6
Income from continuing operations before income taxes	34.1		15.4
Income tax expense	(8.1)		(3.2)
Income from continuing operations	26.0		12.2
Income from discontinued operations, including gain on sale, net of tax	11.4		4.9
Net income	37.4		17.1
Less: net income attributable to redeemable non-controlling interests	—		0.3
Net income attributable to EnPro Industries, Inc.	$	37.4	$	16.8
Comprehensive income	$	44.5	$	4.4
Less: comprehensive loss attributable to redeemable non-controlling interests	—		(0.7)
Comprehensive income attributable to EnPro Industries, Inc.	$	44.5	$	5.1
Income attributable to EnPro Industries, Inc. common shareholders:
Income from continuing operations, net of tax	$	26.0	$	11.9
Income from discontinued operations, including gain on sale, net of tax	11.4		4.9
Net income attributable to EnPro Industries, Inc.	$	37.4	$	16.8
Basic earnings per share attributable to EnPro Industries, Inc.:
Continuing operations	$	1.25	$	0.57
Discontinued operations	0.55		0.24
Net income per share	$	1.80	$	0.81
Diluted earnings per share attributable to EnPro Industries, Inc.:
Continuing operations	$	1.24	$	0.57
Discontinued operations	0.55		0.24
Net income per share	$	1.79	$	0.81

See notes to consolidated financial statements (unaudited).

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ENPRO INDUSTRIES, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

Three Months Ended March 31, 2023 and 2022

(in millions)

	2023		2022
OPERATING ACTIVITIES OF CONTINUING OPERATIONS
Net income	$	37.4	$	17.1
Adjustments to reconcile net income to net cash provided by operating activities of continuing operations:
Income from discontinued operations, net of taxes	(11.4)		(4.9)
Taxes related to sale of discontinued operations	(3.5)		—
Depreciation	6.0		6.4
Amortization	17.6		19.6
Deferred income taxes	(0.4)		(0.7)
Stock-based compensation	2.4		1.5
Other non-cash adjustments	1.1		2.2
Change in assets and liabilities, net of effects of divestiture of businesses:
Accounts receivable, net	(11.5)		(11.6)
Inventories	(4.9)		(3.5)
Accounts payable	(4.6)		6.4
Other current assets and liabilities	(0.9)		(7.9)
Other non-current assets and liabilities	(0.9)		2.8
Net cash provided by operating activities of continuing operations	26.4		27.4
INVESTING ACTIVITIES OF CONTINUING OPERATIONS
Purchases of property, plant and equipment	(5.0)		(3.0)
Proceeds from sale of businesses, net	25.3		0.4
Purchase of short-term investments	(35.0)		—
Other	(0.1)		0.1
Net cash used in investing activities of continuing operations	(14.8)		(2.5)
FINANCING ACTIVITIES OF CONTINUING OPERATIONS
Proceeds from debt	—		4.5
Repayments of debt	(4.0)		(52.4)
Dividends paid	(6.2)		(5.9)
Other	(1.8)		(6.6)
Net cash used in financing activities of continuing operations	(12.0)		(60.4)
CASH FLOWS OF DISCONTINUED OPERATIONS
Operating cash flows	(0.6)		(0.2)
Investing cash flows	—		(1.0)
Net cash used by discontinued operations	(0.6)		(1.2)
Effect of exchange rate changes on cash and cash equivalents	2.7		(8.0)
Net increase (decrease) in cash and cash equivalents	1.7		(44.7)
Cash and cash equivalents at beginning of period	334.4		338.1
Cash and cash equivalents at end of period	$	336.1	$	293.4
Supplemental disclosures of cash flow information:
Cash paid (received) during the period for:
Interest, net	$	7.0	$	0.1
Income taxes, net	$	(0.1)	$	1.7
Non-cash investing and financing activities:
Non-cash acquisitions of property, plant, and equipment	$	0.1	$	0.1

See notes to consolidated financial statements (unaudited).

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ENPRO INDUSTRIES, INC.

CONSOLIDATED BALANCE SHEETS (UNAUDITED)

(in millions, except share amounts)

	March 31, 2023		December 31, 2022
ASSETS
Current assets
Cash and cash equivalents	$	336.1	$	334.4
Short-term investments	35.0		—
Accounts receivable, net	149.4		137.1
Inventories	157.1		151.9
Prepaid expenses and other current assets	37.7		44.9
Current assets of discontinued operation	—		15.9
Total current assets	715.3		684.2
Property, plant and equipment, net	184.7		185.2
Goodwill	866.1		863.8
Other intangible assets, net	783.8		799.8
Other assets	121.6		114.8
Total assets	$	2,671.5	$	2,647.8
LIABILITIES AND EQUITY
Current liabilities
Current maturities of long-term debt	$	15.6	$	15.6
Accounts payable	68.9		73.4
Accrued expenses	115.4		120.2
Current liabilities of discontinued operation	—		2.3
Total current liabilities	199.9		211.5
Long-term debt	771.2		775.1
Deferred taxes and non-current income taxes payable	136.3		136.5
Other liabilities	111.1		111.7
Total liabilities	1,218.5		1,234.8
Commitments and contingencies
Redeemable non-controlling interests	17.9		17.9
Shareholders’ equity
Common stock – $.01 par value; 100,000,000 shares authorized; issued, 21,055,668 shares in 2023 and 20,996,739 shares in 2022	0.2		0.2
Additional paid-in capital	300.8		299.2
Retained earnings	1,161.5		1,130.2
Accumulated other comprehensive loss	(26.2)		(33.3)
Common stock held in treasury, at cost – 177,868 shares in 2023 and 179,345 shares in 2022	(1.2)		(1.2)
Total shareholders’ equity	1,435.1		1,395.1
Total liabilities and equity	$	2,671.5	$	2,647.8

See notes to consolidated financial statements (unaudited).

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ENPRO INDUSTRIES, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

1.    Overview and Basis of Presentation

Overview

EnPro Industries, Inc. (“we,” “us,” “our,” “EnPro,” or the “Company”) is a leading-edge industrial technology company focused on critical applications across a diverse group of growing end markets such as semiconductor, photonics, industrial process, aerospace, food, biopharma and life sciences. EnPro is a leader in applied engineering and designs, develops, manufactures, and markets proprietary, value-added products and solutions that safeguard a variety of critical environments.

Over the past several years, we have executed several strategic initiatives to create a portfolio of businesses that offer proprietary, industrial technology-related products and solutions with high barriers to entry, compelling margins, strong cash flow, and perpetual recurring/aftermarket revenue in markets with favorable secular tailwinds.

Basis of Presentation

The accompanying interim consolidated financial statements are unaudited, and certain related information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been omitted in accordance with Rule 10-01 of Regulation S-X. They were prepared following the same policies and procedures used in the preparation of our annual financial statements. The accompanying interim consolidated financial statements reflect all adjustments (consisting of normal recurring adjustments) necessary for a fair statement of results for the periods presented. The Consolidated Balance Sheet as of December 31, 2022 was derived from the audited financial statements included in our annual report on Form 10-K for the year ended December 31, 2022. The results of operations for the interim periods are not necessarily indicative of the results for the fiscal year. These consolidated financial statements should be read in conjunction with our annual consolidated financial statements for the year ended December 31, 2022 included within our annual report on Form 10-K.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amount of assets and liabilities and the disclosures regarding contingent assets and liabilities at period end and the reported amounts of revenue and expenses during the reporting period.

All intercompany accounts and transactions between our consolidated operations have been eliminated.

2.    Discontinued Operations

On January 30, 2023 we completed the sale of Garlock Pipeline Technologies, Inc. ("GPT") for gross proceeds of $31.4 million. We recorded a pre-tax gain on the sale of discontinued operations of $14.6 million in the first quarter of 2023.

The sale of GPT, along with our GGB business that was divested on November 4, 2022 comprised our remaining Engineered Materials segment ("Engineered Materials"). We determined Engineered Materials to be a discontinued operation. Accordingly, we have reported, for all periods presented, the financial condition, results of operations, and cash flows of Engineered Materials as discontinued operations in the accompanying financial statements.

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For the three months ended March 31, 2023 and 2022, the results of operations from the discontinued Engineered Materials segment were as follows:

(in millions)	2023		2022
Net sales	$	2.0	$	58.7
Cost of sales	1.3		37.9
Gross profit	0.7		20.8
Operating expenses:
Selling, general and administrative	0.4		14.0
Other	—		0.1
Total operating expenses	0.4		14.1
Income from discontinued operation before income tax	0.3		6.7
Income tax expense	(0.1)		(1.8)
Income from discontinued operations, net of tax	0.2		4.9
Gain from sale of discontinued operation, net of tax	11.2		—
Income from discontinued operations, including gain on sale, net of tax	$	11.4	$	4.9

The major classes of assets and liabilities for the discontinued Engineered Materials segment are shown below:

(in millions)	December 31, 2022
Assets:
Accounts receivable	$	3.8
Inventories	3.1
Property, plant and equipment	7.6
Intangible assets	1.2
Other assets	0.2
Current assets of discontinued operation	$	15.9
Liabilities
Accounts payable	$	1.4
Accrued expenses	0.9
Current liabilities of discontinued operation	$	2.3

Pursuant to applicable accounting guidance for the reporting of discontinued operations, allocations to Engineered Materials for corporate services not expected to continue at the divested business subsequent to closing have not been reflected in the above financial statements of discontinued operations and have been reclassified to income from continuing operations in the accompanying consolidated financial statements of the Company for all periods. In addition, divestiture-related costs previously not allocated to Engineered Materials that were incurred as a result of the divestiture of Engineered Materials have been reflected in the financial results of discontinued operations. As a result, income before income taxes of Engineered Materials has been decreased by $0.4 million for the three months ended March 31, 2022, with offsetting changes in corporate expenses of continuing operations.

3.    Income Taxes

Our income tax expense and resulting effective tax rate on income from continuing operations are based upon the estimated annual effective tax rates applicable for the respective periods adjusted for the effect of items required to be treated as discrete in the interim periods. This estimated annual effective tax rate is affected by the relative proportions of revenue and income before taxes in the jurisdictions in which we operate. Based on the geographical mix of earnings, our annual effective tax rate fluctuates based on the portion of our profits earned in each jurisdiction. Additionally, in accordance with discontinued operations reporting requirements, income tax expense for the current and prior periods presented have been adjusted to reflect

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only the activity of continuing operations. This presentation requires removing all elements of income tax expense associated with discontinued operations entities as well as their indirect impact on the overall income tax provision.

The effective tax rates for the three months ended March 31, 2023 and 2022 were 23.7% and 20.7%, respectively. The effective tax rate for the three months ended March 31, 2023 is primarily driven by higher tax rates in most foreign jurisdictions partially offset by the release of a valuation allowance on certain foreign net operating losses and a tax benefit related to share-based payment awards. The effective tax rate for the three months ended March 31, 2022 is primarily the result of a tax benefit related to share-based payment awards partially offset by higher tax rates in most foreign jurisdictions.

4.    Earnings Per Share

	Three Months Ended March 31,
	2023		2022
	(in millions, except per share amounts)
Numerator (basic and diluted):
Income from continuing operations	$	26.0	$	12.2
Less: net income attributable to redeemable non-controlling interests	—		0.3
Income from continuing operations attributable to EnPro Industries, Inc.	26.0		11.9
Income from discontinued operations, net of tax	11.4		4.9
Net income attributable to EnPro Industries, Inc.	$	37.4	$	16.8
Denominator:
Weighted-average shares – basic	20.8		20.8
Share-based awards	0.1		0.1
Weighted-average shares – diluted	20.9		20.9
Basic earnings per share attributable to EnPro Industries, Inc.:
Continuing operations	$	1.25	$	0.57
Discontinued operations	0.55		0.24
Basic earnings per share attributable to EnPro Industries, Inc.	$	1.80	$	0.81
Diluted earnings per share attributable to EnPro Industries, Inc.:
Continuing operations	$	1.24	$	0.57
Discontinued operations	0.55		0.24
Diluted earnings per share attributable to EnPro Industries, Inc.	$	1.79	$	0.81

5.    Inventories

	March 31, 2023		December 31, 2022
	(in millions)
Finished products	$	52.3	$	51.5
Work in process	34.8		32.7
Raw materials and supplies	70.0		67.7
Total inventories	$	157.1	$	151.9

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6.    Goodwill and Other Intangible Assets

The changes in the net carrying value of goodwill by reportable segment for the three months ended March 31, 2023, are as follows:

	Sealing Technologies		Advanced Surface Technologies		Total
	(in millions)
Goodwill as of December 31, 2022	$	270.8	$	593.0	$	863.8
Foreign currency translation	2.3		—		2.3
Goodwill as of March 31, 2023	$	273.1	$	593.0	$	866.1

The goodwill balances reflected above are net of accumulated impairment losses of $27.8 million for the Sealing Technologies segment and $65.2 million for the Advanced Surface Technologies segment.

Identifiable intangible assets are as follows:

	March 31, 2023				December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
	(in millions)
Amortized:
Customer relationships	$	484.8	$	163.9	$	484.5	$	157.6
Existing technology	464.3		80.0		463.7		71.3
Trademarks	64.9		25.5		64.8		24.0
Other	36.4		28.0		36.4		27.3
	1,050.4		297.4		1,049.4		280.2
Indefinite-Lived:
Trademarks	30.8		—		30.6		—
Total	$	1,081.2	$	297.4	$	1,080.0	$	280.2

Amortization for the three months ended March 31, 2023 and 2022 were $17.4 million, and $19.5 million, respectively.

7.    Accrued Expenses

	March 31, 2023		December 31, 2022
	(in millions)
Salaries, wages and employee benefits	$	40.7	$	51.6
Interest	9.3		4.4
Environmental	10.4		10.4
Income taxes	13.8		10.7
Taxes other than income taxes	5.2		4.6
Operating lease liabilities	9.9		9.2
Other	26.1		29.3
	$	115.4	$	120.2

8.     Long-Term Debt

Senior Secured Credit Facilities

On December 17, 2021, we entered into a Third Amended and Restated Credit Agreement (the “Amended Credit Agreement”) among the Company and EnPro Holdings, as borrowers, certain foreign subsidiaries of the Company from time to time party thereto, as designated borrowers, the guarantors party thereto, the lenders party thereto and Bank of America, N.A.,

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as Administrative Agent, Swing Line Lender and L/C Issuer. The Amended Credit Agreement amends, restates and replaces the Second Amended and Restated Credit Agreement dated as of June 28, 2018, as amended, among the Company and EnPro Holdings as borrowers, the guarantors party thereto, the lenders party thereto and Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer.

The Amended Credit Agreement provides for credit facilities in the initial aggregate principal amount of $1,007.5 million, consisting of a five-year, senior secured revolving credit facility of $400.0 million (the “Revolving Credit Facility”), a $142.5 million senior secured term loan facility in replacement of our existing senior secured term loan facility, maturing September 25, 2024 (the “Term Loan A-1 Facility”), a five-year, senior secured term loan facility of $315.0 million (the “Term Loan A-2 Facility”) and a 364-day, senior secured term loan facility of $150.0 million (the “364-Day Facility” and together with the Revolving Credit Facility, the Term Loan A-1 Facility and the Term Loan A-2 Facility, the “Facilities”). The Amended Credit Agreement also provides that we may seek incremental term loans and/or additional revolving credit commitments in an amount equal to the greater of $275.0 million and 100% of consolidated EBITDA for the most recently ended four-quarter period for which we have reported financial results, plus additional amounts based on a consolidated senior secured leverage ratio. The Amended Credit Agreement became effective on December 17, 2021.

Borrowings under the 364-Day Facility bore interest at an annual rate of LIBOR plus 1.50% or base rate plus 0.50%. Initially, borrowings under the Facilities (other than the 364-Day Facility) bore interest at an annual rate of LIBOR plus 1.75% or base rate plus 0.75%, although these interest rates were subject to incremental increase or decrease based on a consolidated total net leverage ratio. On November 8, 2022, we entered into a First Amendment to the Amended Credit Agreement, which replaced the LIBOR-based interest rate option with an option based on Term SOFR ("Secured Overnight Financing Rate") plus (i) a credit spread adjustment of 0.10% and (ii) 1.75%, again subject to incremental increase or decrease based on a consolidated total net leverage ratio. In addition, a commitment fee accrues with respect to the unused amount of the Revolving Credit Facility at an annual rate of 0.225%, which rate is also subject to incremental increase or decrease based on a consolidated total net leverage ratio.

The Term Loan A-1 Facility amortizes on a quarterly basis in an annual amount equal to 2.50% of the original principal amount of the Term Loan A-1 Facility ($150.0 million) in year one after the closing, 5.00% of such original principal amount in year two and 1.25% of such original principal amount in each of the first three quarters of year three, with the remaining outstanding principal amount payable at maturity. The Term Loan A-2 Facility amortizes on a quarterly basis in an annual amount equal to 2.5% of the original principal amount of the Term Loan A-2 Facility in each of years one through three, 5.0% of such original principal amount in year four and 1.25% of such original principal amount in each of the first three quarters of year five, with the remaining outstanding principal amount payable at maturity. The 364-Day Facility did not amortize and was repaid in full in the third quarter of 2022. The Facilities are subject to prepayment with the net cash proceeds of certain asset sales, casualty or condemnation events and non-permitted debt issuances.

The Company and EnPro Holdings are the permitted borrowers under the Facilities. The Company may also from time to time designate any of its wholly owned foreign subsidiaries as a borrower under the Revolving Credit Facility. Each of the Company’s domestic subsidiaries (other than any subsidiaries that may be designated as “unrestricted” by the Company from time to time, and inactive subsidiaries) is required to guarantee the obligations of the borrowers under the Facilities, and each of the Company’s existing domestic subsidiaries (other than inactive subsidiaries) has entered into the Amended Credit Agreement to provide such a guarantee.

Borrowings under the Facilities are secured by a first-priority pledge of certain assets. The Amended Credit Agreement contains certain financial covenants and required financial ratios including a maximum consolidated total net leverage and a minimum consolidated interest coverage as defined in the Amended Credit Agreement. We were in compliance with all covenants of the Amended Credit Agreement as of March 31, 2023.

The borrowing availability under our Revolving Credit Facility at March 31, 2023 was $389.2 million after giving consideration to $10.8 million of outstanding letters of credit. The balance of our outstanding Term Loan A-1 Facility and Term Loan A-2 Facility at March 31, 2023 was $134.9 million and $305.3 million respectively.

Senior Notes

On October 17, 2018, we completed the offering of $350.0 million aggregate principal amount of 5.75% Senior Notes due 2026 (the "Senior Notes") and applied the net proceeds of that offering, together with borrowings under the Revolving Credit Facility, to redeem on October 31, 2018 the full $450.0 million aggregate principal amount of the outstanding 5.875% Senior Notes due 2022 (the "Old Notes").

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The Senior Notes were issued to investors at 100% of the principal amount thereof. The Senior Notes are unsecured, unsubordinated obligations of EnPro and mature on October 15, 2026. Interest on the Senior Notes accrues at a rate of 5.75% per annum and is payable semi-annually in cash in arrears on April 15 and October 15 of each year. The Senior Notes are required to be guaranteed on a senior unsecured basis by each of EnPro’s existing and future direct and indirect domestic subsidiaries that is a borrower under, or guarantees, our indebtedness under the Revolving Credit Facility or guarantees any other Capital Markets Indebtedness (as defined in the indenture governing the Senior Notes) of EnPro or any of the guarantors. We may, on any one or more occasions, redeem all or a part of the Senior Notes at specified redemption prices plus accrued and unpaid interest.

The indenture governing the Senior Notes includes covenants that restrict our ability to engage in certain activities, including incurring additional indebtedness, paying dividends and repurchasing shares of our common stock, subject in each case to specified exceptions and qualifications set forth in the indenture. The indenture further requires us to apply the net cash proceeds of certain asset sales not reinvested in acquisitions, or used to repay or otherwise reduce specified indebtedness within a specified period, in the event of the net proceeds exceeding a specified amount, to offer to repurchase the Senior Notes at a price equal to 100.0% of the principal amount thereof plus accrued and unpaid interest. This requirement applies to the net cash proceeds received in the divestitures of GGB and GPT and could require us to make such an offer to repurchase the Senior Notes in the first quarter of 2024 to the extent we do not sufficiently invest in acquisitions, assets, property or capital expenditures or repay or otherwise reduce specified indebtedness by then.

9.    Pension

The components of net periodic benefit cost for our U.S. and foreign defined benefit pension plans for the three months ended March 31, 2023 and 2022, are as follows:

	2023		2022
	(in millions)
Service cost	$	0.1	$	0.4
Interest cost	3.3		2.4
Expected return on plan assets	(3.4)		(3.3)
Amortization of net loss	0.4		0.1
Net periodic benefit cost (benefit)	$	0.4	$	(0.4)

No contributions were made during the three months ended March 31, 2023 to our U.S. defined benefit pension plans and we do not anticipate making any contributions in 2023.

10.    Shareholders' Equity

Changes in shareholders' equity for the three months ended March 31, 2023 are as follows:

	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Income		Treasury Stock		Total Shareholders' Equity		Redeemable Non-controlling Interests
(in millions, except per share data)	Shares	Amount
Balance, December 31, 2022	20.8	$	0.2	$	299.2	$	1,130.2	$	(33.3)	$	(1.2)	$	1,395.1	$	17.9
Net income	—	—		—		37.4		—		—		37.4		—
Other comprehensive loss	—	—		—		—		7.1		—		7.1		—
Dividends ($0.29 per share)	—	—		—		(6.1)		—		—		(6.1)		—
Incentive plan activity	0.1	—		1.6		—		—		—		1.6		—
Balance, March 31, 2023	20.9	$	0.2	$	300.8	$	1,161.5	$	(26.2)	$	(1.2)	$	1,435.1	$	17.9

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Changes in shareholders' equity for the three months ended March 31, 2022 are as follows:

	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Treasury Stock		Total Shareholders' Equity		Redeemable Non-controlling Interests
(in millions, except per share data)	Shares	Amount
Balance, December 31, 2021	20.7	$	0.2	$	303.6	$	953.1	$	14.6	$	(1.2)	$	1,270.3	$	50.1
Net income	—	—		—		16.8		—		—		16.8		0.3
Other comprehensive loss	—	—		—		—		(11.7)		—		(11.7)		(1.0)
Dividends ($0.28 per share)	—	—		—		(5.9)		—		—		(5.9)		—
Incentive plan activity	0.1	—		(4.1)		—		—		—		(4.1)		—
Other	—	—		0.1		—		—		—		0.1		(0.1)
Balance, March 31, 2022	20.8	$	0.2	$	299.6	$	964.0	$	2.9	$	(1.2)	$	1,265.5	$	49.3

We intend to declare regular quarterly cash dividends on our common stock, as determined by our board of directors, after taking into account our current and projected cash flows, earnings, financial position, debt covenants and other relevant factors. In accordance with the board of directors' declaration, total dividend payments of $6.2 million were made during the three months ended March 31, 2023.

In April 2023, our board of directors declared a dividend of $0.29 per share, payable on June 14, 2023, to all shareholders of record as of May 31, 2023.

In October 2022, our board of directors authorized the expenditure of up to $50.0 million for the repurchase of our outstanding common shares through October 2024. We have not made any repurchases under this authorization or the prior two-year authorization which expired in October 2022.

In 2023, we changed our performance share awards, granted under our equity compensation plan to executives and other key employees, to be paid in shares of our common stock at the end of the three-year vesting period. Awards issued prior to 2023 will be payable in cash at the end of the vesting period based upon the performance of Enpro’s share price relative to an industry peer group. Compensation expense related to performance shares granted in 2023 is computed using the fair value of the awards on the grant date, which is expensed on a straight-line basis over the three-year vesting period. Compensation expense for awards granted prior to 2023 is computed based upon the current estimate of total projected cash to be paid at vesting.

In February 2023, we issued stock options to certain key executives for 0.1 million common shares with an exercise price of $116.69 per share. The options vest pro-rata on the first, second and third anniversaries of the grant date, subject to continued employment. No options have a term greater than 10 years.

We determine the fair value of stock options using the Black-Scholes option pricing formula as of the grant date. Key inputs into this formula include expected term, expected volatility, expected dividend yield, and the risk-free interest rate. This fair value is amortized on a straight line basis over the vesting period.

The expected term represents the period that our stock options are expected to be outstanding, and is determined based on historical experience of similar awards, given the contractual terms of the awards, vesting schedules, and expectations of future employee behavior. The fair value of stock options reflects a volatility factor calculated using historical market data for EnPro's common stock. The time frame used was approximated as a six-year period from the grant date for the awards. The dividend assumption is based on our expectations as of the grant date. We base the risk-free interest rate on the yield to maturity at the time of the stock option grant on zero-coupon U.S. government bonds having a remaining life equal to the option's expected life.

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The option awards issued in February 2023 had a fair value of $45.13 per share at their grant date. The following assumptions were used to estimate the fair value of the 2023 option awards:

Average expected term	6 years
Expected volatility	39.75	%
Risk-free interest rate	4.22	%
Expected dividend yield	1.05	%

11.    Business Segment Information

We aggregate our operating businesses into two reportable segments. The factors considered in determining our reportable segments are the economic similarity of the businesses, the nature of products sold, or solutions provided, the production processes and the types of customers and distribution methods. Our reportable segments are managed separately based on these differences.

Our Sealing Technologies segment designs and manufactures value-added products and solutions that safeguard a variety of critical environments, including: metallic, non-metallic and composite material gaskets, dynamic seals, compression packing, resilient metal seals, elastomeric seals, custom-engineered mechanical seals for applications in the aerospace industry and other markets, hydraulic components, expansion joints, sanitary gaskets, hoses and fittings for the hygienic process industries, fluid transfer products for the pharmaceutical and biopharmaceutical industries, and heavy-duty commercial vehicle parts used in wheel-end and suspension components that customers rely upon to ensure safety on our roadways. These products are used in a variety of markets, including chemical and petrochemical processing, nuclear energy, food and biopharmaceutical processing, primary metal manufacturing, mining, water and waste treatment, heavy-duty trucking, aerospace, medical, filtration and semiconductor fabrication. In all of these industries, performance and durability of our proprietary products and solutions are vital for the safety and environmental protection of our customers processes. Many of our products and solutions are used in highly demanding applications in harsh environments, e.g., where extreme temperatures, extreme pressures, corrosive environments, strict tolerances, and/or worn equipment create challenges for product performance. Sealing Technologies offers customers widely recognized applied engineering, innovation, process know how and enduring reliability, driving aftermarket demand for many of our solutions.

Our Advanced Surface Technologies (AST) segment applies proprietary technologies, processes, and capabilities to deliver a highly differentiated suite of products and solutions for the most challenging applications in high growth markets. The segment’s products and solutions are used in highly demanding environments requiring performance, precision and repeatability, with a low tolerance for failure. The segment’s solutions include cleaning, coating, testing, refurbishment and verification for critical components and assemblies used in state-of-the-art advanced node semiconductor manufacturing equipment. AST designs, manufactures and sells specialized optical filters and proprietary thin-film coatings for the most challenging applications in the industrial technology, life sciences, and semiconductor markets and complex front-end wafer processing sub-systems, new and refurbished electrostatic chuck pedestals, and edge-welded metal bellows for the semiconductor equipment industry and for critical applications in the space, aerospace and defense markets. In many instances, AST capabilities drive solutions that enable the maintenance of our customers’ processes through an entire life cycle.

We measure operating performance based on segment earnings before interest, income taxes, depreciation, amortization, and other selected items ("Adjusted Segment EBITDA"), which is segment revenue reduced by operating expenses and other costs identifiable with the segment, excluding acquisition and divestiture expenses, restructuring costs, impairment charges, non-controlling interest compensation, amortization of the fair value adjustment to acquisition date inventory, and depreciation and amortization. Adjusted Segment EBITDA is not defined under GAAP and may not be comparable to similarly-titled measures used by other companies. Corporate expenses include general corporate administrative costs. Expenses not directly attributable to the segments, corporate expenses, net interest expense, gains and losses related to the sale of assets, and income taxes are not included in the computation of Adjusted Segment EBITDA. The accounting policies of the reportable segments are the same as those for EnPro.

Non-controlling interest compensation allocation represents compensation expense associated with the rollover equity subject to put and call options from the acquisitions of LeanTeq and Alluxa subject to reduction for certain types of employment terminations of the respective sellers. This expense is recorded in selling, general, and administrative expenses on our Consolidated Statements of Operations and is directly related to the terms of the acquisition. This expense is recognized as compensation expense over the term of the respective put and call options unless certain employment terminations occur. The

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LeanTeq non-controlling interests were acquired by Enpro in December 2022 and, accordingly, the non-controlling interest compensation for the three months ended March 31, 2023 is attributable solely to the Alluxa rollover equity.

Segment operating results and other financial data for the three months ended March 31, 2023 and 2022 were as follows:

	Three Months Ended March 31,
	2023		2022
	(in millions)
Sales
Sealing Technologies	$	173.3	$	153.6
Advanced Surface Technologies	109.4		116.7
	282.7		270.3
Intersegment sales	(0.1)		(0.2)
Total sales	$	282.6	$	270.1
Adjusted Segment EBITDA
Sealing Technologies	$	49.7	$	34.3
Advanced Surface Technologies	29.5		34.9
	$	79.2	$	69.2
Reconciliation of Adjusted Segment EBITDA to income before income taxes
Income from continuing operations before income taxes	$	34.1	$	15.4
Acquisition and divestiture expenses	—		0.2
Non-controlling interest compensation allocation	0.4		(0.9)
Amortization of fair value adjustment to acquisition date inventory	—		10.3
Restructuring and impairment expense	0.4		0.3
Depreciation and amortization expense	23.5		25.9
Corporate expenses	10.7		12.9
Interest expense, net	7.9		6.9
Other income (expense), net	2.2		(1.8)
Adjusted Segment EBITDA	$	79.2	$	69.2

Segment assets are as follows:

	March 31, 2023		December 31, 2022
	(in millions)
Sealing Technologies	$	708.5	$	689.6
Advanced Surface Technologies	1,514.1		1,519.6
Corporate	448.9		422.7
Discontinued operations	—		15.9
	$	2,671.5	$	2,647.8

 

Backlog

As of March 31, 2023, the aggregate amount of transaction price of remaining performance obligations, or backlog, on a consolidated basis was $294.0 million. Approximately 95% of these obligations are expected to be satisfied within one year. There is no certainty these orders will result in actual sales at the times or in the amounts ordered. In addition, for most of our business, this total is not particularly predictive of future performance because of our short lead times and some seasonality.

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Revenue by End Market

Due to the diversified nature of our business and the wide array of products that we offer, we sell into a number of end markets. Underlying economic conditions within these markets are a major driver of our segments' sales performance. Below is a summary of our third-party sales by major end market with which we did business for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31, 2023
(in millions)	Sealing Technologies		Advanced Surface Technologies		Total
Aerospace	$	12.5	$	1.6	$	14.1
Chemical and material processing	21.6		—		21.6
Food and pharmaceutical	18.7		—		18.7
General industrial	43.9		8.8		52.7
Commercial vehicle	52.4		—		52.4
Oil and gas	5.9		1.6		7.5
Power generation	16.1		—		16.1
Semiconductors	2.2		97.3		99.5
Total third-party sales	$	173.3	$	109.3	$	282.6

	Three Months Ended March 31, 2022
(in millions)	Sealing Technologies		Advanced Surface Technologies		Total
Aerospace	$	8.1	$	2.0	$	10.1
Chemical and material processing	20.3		—		20.3
Food and pharmaceutical	17.6		—		17.6
General industrial	42.9		7.8		50.7
Commercial vehicle	44.8		—		44.8
Oil and gas	5.1		0.6		5.7
Power generation	13.2		0.1		13.3
Semiconductors	1.6		106.0		107.6
Total third-party sales	$	153.6	$	116.5	$	270.1

In 2023, we refined the end market classification of certain sales in the Sealing Technologies segment for the quarter ended March 31, 2022. This refinement resulted in a reduction in sales reported for the quarter ended March 31, 2022 in the general industrial and other and food and pharmaceutical markets by approximately $1.7 million and $1.4 million, respectively. There was an offsetting increase in the power generation and semiconductor markets of $2.8 million and $0.3 million, respectively.

12.    Derivatives and Hedging

We are exposed to foreign currency risks that arise from normal business operations. These risks include the translation of local currency balances on our foreign subsidiaries’ balance sheets, intercompany loans with foreign subsidiaries and transactions denominated in foreign currencies. We strive to control our exposure to these risks through our normal operating activities and, where appropriate, through derivative instruments. We periodically enter into contracts to hedge forecasted transactions that are denominated in foreign currencies. As part of out regular practice, we have entered into a forward contract to hedge a 95 million Euro exposure on an intercompany note agreement related to proceeds from the GGB sale allocated to foreign subsidiaries. We expect this intercompany note to be settled during 2023. The notional amount of foreign exchange contracts was $104.8 million and $103.3 million March 31, 2023 and December 31, 2022 respectively. All foreign exchange contracts outstanding at December 31, 2022 expired in January 2023.

The notional amounts of all of our foreign exchange contracts were recorded at their fair market value as of December 31, 2022 with changes in market value recorded in income. The earnings impact of any foreign exchange contract that is

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specifically related to the purchase of inventory is recorded in cost of sales and the changes in market value of all other contracts are recorded in selling, general and administrative expense in the Consolidated Statements of Operations. The balances of foreign exchange derivative assets are recorded in other current assets and the balances of foreign exchange derivative liabilities are recorded in accrued expenses in the Consolidated Balance Sheets.

In May 2019, we entered into a cross-currency swap agreements (the "Swap") with a notional amount of $100.0 million to manage an increased portion of our foreign currency risk by effectively converting a portion of the interest payments related to our fixed-rate USD-denominated Senior Notes, including the semi-annual interest payments thereunder, to interest payments on fixed-rate Euro-denominated debt of 89.6 million EUR with a weighted average interest rate of 3.5%, with interest payment dates of April 15 and October 15 of each year. The Additional Swap agreement matures on October 15, 2026.

During the term of the Swap agreement, we will receive semi-annual payments from the counterparties due to the difference between the interest rate on the Senior Notes and the interest rate on the Euro debt underlying the Swap. There was no principal exchange at the inception of the arrangement, and there will be no exchange at maturity. At maturity (or earlier at our option), we and the counterparty will settle the Swap agreement at its fair value in cash based on the aggregate notional amount and the then-applicable currency exchange rate compared to the exchange rate at the time the Swap agreement was entered into.

We have designated the Swap as a qualifying hedging instruments and are accounting for it as a net investment hedge. At March 31, 2023, the fair value of the Swap equaled $7.9 million and was recorded within our other (non-current) assets on the Consolidated Balance Sheet.The gains and losses resulting from fair value adjustment to the Swap agreement, excluding interest accruals related to the above receipts, are recorded in accumulated other comprehensive income within our cumulative foreign currency translation adjustment, as the Swap is effective in hedging the designated risk. Cash flows related to the Swap are included in operating activities in the Consolidated Statements of Cash Flows, aside from the ultimate settlement at maturity with the counterparty, which will be included in investing activities.

13.    Fair Value Measurements

Assets and liabilities measured at fair value on a recurring basis are summarized as follows:

	Fair Value Measurements as of
	March 31, 2023		December 31, 2022
	(in millions)
Assets
Short-term investments	35.0		—
Foreign currency derivatives	7.9		8.5
Deferred compensation assets	10.1		9.8
	$	53.0	$	18.3
Liabilities
Deferred compensation liabilities	$	10.5	$	10.3

Our deferred compensation assets and liabilities are classified within Level 1 of the fair value hierarchy because they are valued using quoted market prices. Our foreign currency derivatives and short-term investments are classified as Level 2 since their value is calculated based upon observable inputs including market USD/Euro exchange rates and market interest rates. Our short-term investments represent certificates of deposits acquired in the first quarter of 2023 with a maturity date in July 2023.

The carrying values of our significant financial instruments reflected in the Consolidated Balance Sheets approximated their respective fair values except for the following instruments:

	March 31, 2023				December 31, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in millions)
Long-term debt	$	786.8	$	782.7	$	790.7	$	788.8

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The fair values for long-term debt are based on quoted market prices for identical liabilities, but these are considered Level 2 computations because the market is not active.

14.    Accumulated Other Comprehensive Income (Loss)

Changes in accumulated other comprehensive income (loss) by component (after tax) for the three months ended March 31, 2023 are as follows:

(in millions)	Unrealized Translation Adjustments		Pension and Other Postretirement Plans		Total
Beginning balance	$	11.8	$	(45.1)	$	(33.3)
Other comprehensive income before reclassifications	6.8				6.8
Amounts reclassified from accumulated other comprehensive loss	—		0.3		0.3
Net current-period other comprehensive income attributable to EnPro Industries, Inc.	6.8		0.3		7.1
Ending balance	$	18.6	$	(44.8)	$	(26.2)

Changes in accumulated other comprehensive income (loss) by component (after tax) for the three months ended March 31, 2022 are as follows:

(in millions)	Unrealized Translation Adjustments		Pension and Other Postretirement Plans		Total
Beginning balance	$	46.7	$	(32.1)	$	14.6
Other comprehensive loss before reclassifications	(12.8)		—		(12.8)
Amounts reclassified from accumulated other comprehensive income	—		0.1		0.1
Net current-period other comprehensive loss	(12.8)		0.1		(12.7)
Less: other comprehensive income attributable to redeemable non-controlling interests	(1.0)		—		(1.0)
Net current-period other comprehensive income attributable to EnPro Industries, Inc.	(11.8)		0.1		(11.7)
Ending balance	$	34.9	$	(32.0)	$	2.9

Reclassifications out of accumulated other comprehensive income (loss) for the three months ended March 31, 2023 and 2022 are as follows:

Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)				Affected Statement of Operations Caption
	Three Months Ended   March 31,
(in millions)	2023		2022
Pension and other postretirement plans adjustments:
Actuarial losses	$	0.4	$	0.1	Other income (expense)
Total before tax	0.4		0.1		Income before income taxes
Tax benefit	(0.1)		—		Income tax expense
Net of tax	$	0.3	$	0.1	Net income

15.    Commitments and Contingencies

General

A description of certain environmental and other legal matters relating to certain of our subsidiaries is included in this section. In addition to the matters noted herein, we are from time to time subject to, and are presently involved in, other litigation and legal proceedings arising in the ordinary course of business. We believe the outcome of such other litigation and

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legal proceedings will not have a material adverse effect on our financial condition, results of operations and cash flows. Expenses for administrative and legal proceedings are recorded when incurred.

Environmental

Our facilities and operations are subject to federal, state and local environmental and occupational health and safety laws and regulations of the U.S. and foreign countries. We take a proactive approach in our efforts to comply with these laws and regulations as they relate to our manufacturing operations and in proposing and implementing any remedial plans that may be necessary. We also regularly conduct comprehensive environmental, health and safety audits at our facilities to maintain compliance and improve operational efficiency.

Although we believe past operations were in substantial compliance with the then applicable regulations, we or one or more of our subsidiaries are involved with various remediation activities or an investigation to determine responsibility for environmental conditions at 19 sites. At 9 of these sites, the future cost per site for us or our subsidiary is expected to exceed $100,000. Of these 19 sites, 18 are sites where we or one or more of our subsidiaries formerly conducted business operations but no longer do, and 1 is a site where we conduct manufacturing operations. Investigations have been completed for 16 sites. At 7 of these sites, remediation systems are operating while at the other 9 sites, our only obligation is to conduct periodic monitoring. Investigations are in progress at 3 sites.

Our policy is to accrue environmental investigation and remediation costs when it is probable that a liability has been incurred and the amount can be reasonably estimated. For sites with multiple future projected cost scenarios for identified feasible investigation and remediation options where no one estimate is more likely than all the others, our policy is to accrue the lowest estimate among the range of estimates. The measurement of the liability is based on an evaluation of currently available facts with respect to each individual situation and takes into consideration factors such as existing technology, presently enacted laws and regulations and prior experience in the remediation of similar contaminated sites. Liabilities are established for all sites based on these factors. As assessments and remediation progress at individual sites, these liabilities are reviewed and adjusted to reflect additional technical data and legal information. As of March 31, 2023 and December 31, 2022, we had recorded liabilities aggregating $41.2 million and $42.1 million, respectively, for estimated future expenditures relating to environmental contingencies. The current portion of our aggregate environmental liability included in accrued liabilities was $10.4 million at March 31, 2023. These amounts have been recorded on an undiscounted basis in the Consolidated Balance Sheets. Given the uncertainties regarding the status of laws, regulations, enforcement policies, the impact of other parties potentially being fully or partially liable, technology and information related to individual sites, we do not believe it is possible to develop an estimate of the range of reasonably possible environmental loss in excess of our recorded liabilities.

We believe that our accruals for specific environmental liabilities are adequate based on currently available information. Based upon limited information regarding any incremental remediation or other actions that may be required at these sites, we cannot estimate any further loss or a reasonably possible range of loss related to these matters. Actual costs to be incurred in future periods may vary from estimates because of the inherent uncertainties in evaluating environmental exposures due to unknown and changing conditions, changing government regulations and legal standards regarding liability.

Lower Passaic River Study Area

Based on our prior ownership of Crucible Steel Corporation a/k/a Crucible, Inc. (“Crucible”), we may have additional contingent liabilities in one or more significant environmental matters. One such matter, which is included in the 19 sites referred to above, is the Lower Passaic River Study Area of the Diamond Alkali Superfund Site in New Jersey. Crucible operated a steel mill abutting the Passaic River in Harrison, New Jersey from the 1930s until 1974, which was one of many industrial operations on the river dating back to the 1800s. Certain contingent environmental liabilities related to this site were retained by a predecessor of EnPro Holdings when it sold a majority interest in Crucible Materials Corporation (the successor of Crucible) in 1985. The United States Environmental Protection Agency (the “EPA”) notified our subsidiary in September 2003 that it is a potentially responsible party (“PRP”) for Superfund response actions in the lower 17-mile stretch of the Passaic River known as the Lower Passaic River Study Area.

EnPro Holdings and approximately 70 of the numerous other PRPs, known as the Cooperating Parties Group, are parties to a May 2007 Administrative Order on Consent with the EPA to perform a Remedial Investigation/Feasibility Study (“RI/FS”) of the contaminants in the Lower Passaic River Study Area. In September 2018, EnPro Holdings withdrew from the Cooperating Parties Group but remains a party to the May 2007 Administrative Order on Consent. The RI/FS was completed and submitted to the EPA at the end of April 2015. The RI/FS recommends a targeted dredge and cap remedy with monitored natural recovery and adaptive management for the Lower Passaic River Study Area. The cost of such remedy is estimated to be $726 million. Previously, on April 11, 2014, the EPA released its Focused Feasibility Study (the “FFS”) with its proposed plan for remediating the lower eight miles of the Lower Passaic River Study Area. The FFS calls for bank-to-bank dredging and capping of the riverbed of that portion of the river and estimates a range of the present value of aggregate remediation costs of

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approximately $953 million to approximately $1.73 billion, although estimates of the costs and the timing of costs are inherently imprecise. On March 3, 2016, the EPA issued the final Record of Decision (ROD) as to the remedy for the lower eight miles of the Lower Passaic River Study Area, with the maximum estimated cost being reduced by the EPA from $1.73 billion to $1.38 billion, primarily due to a reduction in the amount of cubic yards of material that will be dredged. In October 2016, Occidental Chemical Corporation, the successor to the entity that operated the Diamond Alkali chemical manufacturing facility, reached an agreement with the EPA to develop the design for this proposed remedy at an estimated cost of $165 million. The EPA has estimated that it will take approximately four years to develop this design. On June 30, 2018, Occidental Chemical Corporation sued over 120 parties, including the Company, in the United States District Court for New Jersey seeking recovery of response costs under the Comprehensive Environmental Response, Compensation and Liability Act ("CERCLA").

No final allocations of responsibility have been made among the numerous PRPs that have received notices from the EPA, there are numerous identified PRPs that have not yet received PRP notices from the EPA, and there are likely many PRPs that have not yet been identified.

On April 14, 2021, the EPA issued its proposed remedy for the upper nine miles of the river, with an estimated present value cost of approximately $441 million. The proposed remedy would involve dredging and capping of the river sediment as an interim remedy followed by a period of monitoring to evaluate the response of the river system to the interim remedy.

When the EPA initiated the allocation process in 2017, it explained that a fair, carefully structured, information-based allocation was necessary to promote settlements. With the completion of the allocation process, in the second quarter of 2021 the EPA began settlement negotiations with the parties that participated in the allocation process, including EnPro. In September 2022, EnPro paid $5.9 million as part of a settlement between those parties and EPA. The payment will be held in escrow until court approval of the settlement. Our reserve for this site at March 31, 2023 was $0.7 million. Further adjustments to our reserve for this site are possible as new or additional information becomes available.

Except with respect to the Lower Passaic River Study Area, we are unable to estimate a reasonably possible range of loss related to any other contingent environmental liability based on our prior ownership of Crucible. See the section entitled “Crucible Steel Corporation a/k/a Crucible, Inc.” in this footnote for additional information.

Arizona Uranium Mines

EnPro Holdings has received notices from the EPA asserting that it is a potentially responsible party under the CERCLA as the successor to a former operator of eight uranium mines in Arizona. The former operator conducted operations at the mines from 1954 to 1957. In the 1990s, remediation work performed by others at these sites consisted of capping the exposed areas of the mines. We have previously reserved amounts of probable loss associated with these mines, principally including the cost of the investigative work to be conducted at such mines. We entered into an Administrative Settlement Agreement and Order on Consent for Interim Removal Action with the EPA effective November 7, 2017 for the performance of this work. We entered into a First Modification of Original Administrative Settlement Agreement and Order on Consent effective July 8, 2022 for the performance of Engineering Evaluations and Cost Analyses of potential remedial options at each of the sites. In 2020, EPA initiated group discussions with EnPro Holdings and other potentially responsible parties to resolve various technical issues, including the development of cleanup standards. Based on these discussions and subsequent discussions with other responsible parties with similar sites, we have concluded that further remedial work beyond maintenance of and minor repairs to the existing caps is probable, and we have evaluated the feasibility of various remediation scenarios. Our reserve at March 31, 2023 for this site was $12.4 million, which reflects the low end of the range of our reasonably likely liability with respect to these sites. We are not able at this time to estimate the upper end of a range of liability with respect to these sites.

On October 18, 2021, the United States District Court for the District of Arizona approved and entered a Consent Decree pursuant to which the U.S government will reimburse the Company for 35% of necessary costs of response, as defined in 42 U.S.C. section 9601(25), previously or to be in the future incurred by the Company which arise out of or in connection with releases or threatened releases of hazardous substances at or emanating from the mine sites. We expect future contributions of $3.3 million from the U.S. government towards remediation of the site. This amount was included in other assets in the accompanying consolidated balance sheet at March 31, 2023.

In addition to the two sites discussed above, we have additional reserves of $28.1 million, of which $14.3 million pertains to implementing and managing a solution to clean trichloroethylene soil and groundwater contamination at the location of a former operation in Water Valley, Mississippi. These amounts represent a reasonable estimate of our probable future costs to remediate these sites given the facts and circumstances known at March 31, 2023.

Crucible Steel Corporation a/k/a Crucible, Inc.

Crucible, which was engaged primarily in the manufacture and distribution of high technology specialty metal products, was a wholly owned subsidiary of EnPro Holdings until 1983 when its assets and liabilities were distributed to a new

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subsidiary, Crucible Materials Corporation. EnPro Holdings sold a majority of the outstanding shares of Crucible Materials Corporation in 1985 and divested its remaining minority interest in 2004. Crucible Materials Corporation filed for Chapter 11 bankruptcy protection in May 2009 and is no longer conducting operations.

We have certain ongoing obligations, which are included in other liabilities in our Consolidated Balance Sheets, including workers’ compensation, retiree medical and other retiree benefit matters, in addition to those mentioned previously related to EnPro Holdings' period of ownership of Crucible. Based on EnPro Holdings' prior ownership of Crucible, we may have certain additional contingent liabilities, including liabilities in one or more significant environmental matters included in the matters discussed in “Environmental” above. We are investigating these matters. Except with respect to those matters for which we have an accrued liability as discussed in "Environmental" above, we are unable to estimate a reasonably possible range of loss related to these contingent liabilities.

Warranties

We provide warranties on many of our products. The specific terms and conditions of these warranties vary depending on the product and the market in which the product is sold. We record a liability based upon estimates of the costs we may incur under our warranties after a review of historical warranty experience and information about specific warranty claims. Adjustments are made to the liability as claims data, historical experience, and trends result in changes to our estimate.

Changes in the product warranty liability for the three months ended March 31, 2023 and 2022 are as follows:

	2023		2022
	(in millions)
Balance at beginning of year	$	5.2	$	4.9
Net charges to expense	0.3		0.4
Settlements made	(0.3)		(0.7)
Balance at end of period	$	5.2	$	4.6

Item 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations.

The following is management’s discussion and analysis of certain significant factors that have affected our financial condition, cash flows and operating results during the periods included in the accompanying unaudited consolidated financial statements and the related notes. You should read this in conjunction with those financial statements and the audited consolidated financial statements and related notes included in our annual report on Form 10-K for the fiscal year ended December 31, 2022.

Forward-Looking Information

This quarterly report on Form 10-Q includes statements that reflect projections or expectations of the future financial condition, results of operations and business of EnPro that are subject to risk and uncertainty. We believe those statements to be “forward-looking” statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. When used in this report, the words “may,” “hope,” “will,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “potential,” “continue,” “likely,” and other expressions generally identify forward-looking statements.

We cannot guarantee actual results or events will not differ materially from those projected, estimated, assigned or anticipated in any of the forward-looking statements contained in this report. Important factors that could result in those differences include those specifically noted in the forward-looking statements and those identified in Item 1A, “Risk Factors” of our annual report on Form 10-K for the year ended December 31, 2022, which include:

•economic conditions in the markets served by our businesses and the businesses of our customers, some of which are cyclical and experience periodic downturns;

•the impact of geopolitical activity on those markets, including instabilities associated with the armed conflict in Ukraine and any conflict or threat of conflict that may affect Taiwan;

•uncertainties with respect to the imposition of government embargoes, tariffs and trade protection measures, such as “anti-dumping” duties applicable to classes of products, and import or export licensing requirements, as well as the imposition of trade sanctions against a class of products imported from or sold

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and exported to, or the loss of “normal trade relations” status with, countries in which we conduct business, could significantly increase our cost of products or otherwise reduce our sales and harm our business;

•uncertainties with respect to the duration and severity of impacts from the COVID-19 pandemic on our operations, and the operations and businesses of our customers and vendors, including impacts on the general economy and the markets served by our customers, as well as supply chain disruptions and materials cost increases that are not passed along to our customers; uncertainties with respect to prices and availability of raw materials, including as a result of the COVID-19 pandemic or instabilities from geopolitical conflicts;

•uncertainties with respect to our ability to achieve anticipated growth within the semiconductor, life sciences, and other technology-enabled markets;

•the impact of fluctuations in relevant foreign currency exchange rates or unanticipated increases in applicable interest rates;

•unanticipated delays or problems in introducing new products;

•the impact of any labor disputes;

•announcements by competitors of new products, services or technological innovations;

•changes in our pricing policies or the pricing policies of our competitors;

•risks related to the reliance of our Advanced Surface Technologies segment on a small number of significant customers;

•uncertainties with respect to our ability to identify and complete business acquisitions consistent with our strategy and to successfully integrate any businesses that we acquire; and

•uncertainties with respect to the amount of any payments required to satisfy contingent liabilities, including those related to discontinued operations, other divested businesses and discontinued operations of our predecessors, including liabilities for certain products, environmental matters, employee benefit and statutory severance obligations and other matters.

We caution our shareholders not to place undue reliance on our forward-looking statements, which speak only as of the date on which such statements were made.

Whenever you read or hear any subsequent written or oral forward-looking statements attributed to us or any person acting on our behalf, you should keep in mind the cautionary statements contained or referred to in this section. We do not undertake any obligation to release publicly any revisions to these forward-looking statements to reflect events or circumstances after the date of this report or to reflect the occurrence of unanticipated events.

Non-GAAP Financial Information

In our discussion of our outlook and results of operations, we utilize financial measures that have not been prepared in conformity with generally accepted accounting principles in the United States ("GAAP"). They include adjusted net income attributable to EnPro Industries, Inc., adjusted diluted earnings per share attributable to EnPro Industries, Inc., adjusted earnings before interest, taxes, depreciation, and amortization ("adjusted EBITDA"), and total adjusted segment EBITDA. Tables showing the reconciliation of these non-GAAP financial measures to the comparable GAAP measures are included in "—Reconciliations of Non-GAAP Financial Measures to the Comparable GAAP Measures"

We believe non-GAAP metrics are commonly used financial measures for investors to evaluate our operating performance and, when read in conjunction with our consolidated financial statements, present a useful tool to evaluate our ongoing operations and performance from period to period. In addition, these non-GAAP measures are some of the factors we use in internal evaluations of the overall performance of our businesses. We acknowledge that there are many items that impact our reported results and the adjustments reflected in these non-GAAP measures are not intended to present all items that may have impacted these results. In addition, the non-GAAP measures we use are not necessarily comparable to similarly titled measures used by other companies.

Discontinued Operations

On January 30, 2023, we closed on the sale of Garlock Pipeline Technologies, Inc. (GPT). This business, along with our GGB business which was divested on November 4, 2022, comprised our remaining Engineered Materials segment ("Engineered Materials"). Accordingly, we have recast, for all periods presented, the financial condition, results of operations, and cash flows

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of Engineered Materials as discontinued operations in the accompanying financial statements. Furthermore, unless otherwise specified, amounts presented in Management's Discussion and Analysis are for continuing operations only.

Overview

Overview. We are a leading-edge industrial technology company focused on critical applications across a diverse group of growing end markets such as semiconductor, photonics, industrial process, aerospace, food, biopharma, nuclear and life sciences. We have 13 primary manufacturing and service facilities located in 6 countries, including the United States. EnPro is a leader in applied engineering and designs, develops, manufactures, and markets proprietary, value-added products and solutions that safeguard a variety of critical environments.

Over the past several years, we have executed several strategic initiatives to create a portfolio of businesses that offer proprietary, industrial technology-related products and solutions with high barriers to entry, compelling margins, strong cash flow, and perpetual recurring/aftermarket revenue in markets with favorable secular tailwinds.

We manage our business as two segments: a Sealing Technologies segment and an Advanced Surface Technologies segment.

Our Sealing Technologies segment designs and manufactures value-added products and solutions that safeguard a variety of critical environments, including: metallic, non-metallic and composite material gaskets, dynamic seals, compression packing, resilient metal seals, elastomeric seals, custom-engineered mechanical seals for applications in the aerospace industry and other markets, hydraulic components, expansion joints, sanitary gaskets, hoses and fittings for the hygienic process industries, fluid transfer products for the pharmaceutical and biopharmaceutical industries, and heavy-duty commercial vehicle parts used in wheel-end and suspension components that customers rely upon to ensure safety on our roadways. These products are used in a variety of markets, including chemical and petrochemical processing, nuclear energy, food and biopharmaceutical processing, primary metal manufacturing, mining, water and waste treatment, heavy-duty trucking, aerospace, medical, filtration and semiconductor fabrication. In all of these industries, performance and durability of our proprietary products and solutions are vital for the safety and environmental protection of our customers processes. Many of our products and solutions are used in highly demanding applications and harsh environments, e.g., where extreme temperatures, extreme pressures, corrosive environments, strict tolerances, and/or worn equipment create challenges for product performance. Sealing Technologies offers customers widely recognized applied engineering, innovation, process know how and enduring reliability, driving aftermarket demand for many of our solutions.

Our Advanced Surface Technologies (AST) segment applies proprietary technologies, processes, and capabilities to deliver a highly differentiated suite of products and solutions for the most challenging applications in high growth markets. The segment’s products and solutions are used in highly demanding environments requiring performance, precision and repeatability, with a low tolerance for failure. The segment’s solutions include cleaning, coating, testing, refurbishment and verification for critical components and assemblies used in state-of-the-art advanced node semiconductor manufacturing equipment. AST designs, manufactures and sells specialized optical filters and proprietary thin-film coatings for the most challenging applications in the industrial technology, life sciences, and semiconductor markets and complex front-end wafer processing sub-systems, new and refurbished electrostatic chuck pedestals, and edge-welded metal bellows for the semiconductor equipment industry and for critical applications in the space, aerospace and defense markets. In many instances, AST capabilities drive solutions that enable the maintenance of our customers’ processes through an entire life cycle.

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Highlights. Financial highlights of our continuing operations for the three months ended March 31, 2023 and 2022 are as follows:

	2023		2022
	(in millions, except per share data)
Net sales	$	282.6	$	270.1
Income from continuing operations attributable to EnPro Industries, Inc.	$	26.0	$	11.9
Net income attributable to EnPro Industries, Inc.	$	37.4	$	16.8
Diluted earnings per share from continuing operations attributable to EnPro Industries, Inc.	$	1.24	$	0.57
Adjusted income attributable to EnPro Industries, Inc.1	$	40.7	$	32.4
Adjusted diluted earnings per share from attributable to EnPro Industries, Inc.1	$	1.95	$	1.56
Adjusted EBITDA 1	$	68.6	$	59.0

1 A reconciliation of non-GAAP measures to their respective GAAP measure is located in the Reconciliation of Non-GAAP Financial Measures to the Comparable GAAP Measure at the end of this section.

Strong sales results in the first quarter of 2023 were driven by organic growth in our Sealing Technologies segment. Growth in the aerospace, power generation (nuclear), commercial vehicle, general industrial and food and pharma markets, positive mix and strategic pricing initiatives more than offset the current slowdown in semiconductor markets during the first quarter.

Our increased income from continuing operations attributable to EnPro Industries, Inc. and adjusted EBITDA compared to the prior-year period were driven primarily by operating leverage on organic volume growth in the Sealing Technologies segment, and SG&A cost controls, and pricing initiatives to offset inflationary material costs and rising labor expenses.

We are committed to our strategy to create long-term shareholder value through earnings growth, strong free cash flow generation and a balanced capital allocation approach. We will continue to focus our investments on new products, technology innovation, and productivity and continuous improvement initiatives in both of our segments. In connection with our growth strategy, we continue to evaluate acquisition opportunities that fit our strategic frameworks in both segments, based on a consistent criteria that includes compelling margins, leading technology, aftermarket/recurring revenue characteristics and high cash flow return on investment in markets that have secular tailwinds.

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Results of Operations

	Three Months Ended March 31,
	2023		2022
	(in millions)
Sales
Sealing Technologies	$	173.3	$	153.6
Advanced Surface Technologies	109.4		116.7
	282.7		270.3
Intersegment sales	(0.1)		(0.2)
Net sales	$	282.6	$	270.1
Income from continuing operations attributable to EnPro Industries, Inc., net of tax	$	26.0	$	11.9
Adjusted Segment EBITDA
Sealing Technologies	$	49.7	$	34.3
Advanced Surface Technologies	29.5		34.9
Total Adjusted Segment EBITDA	$	79.2	$	69.2
Reconciliations of Income from continuing operations attributable to EnPro Industries, Inc. to Adjusted Segment EBITDA
Income from continuing operations attributable to EnPro Industries, Inc.	$	26.0	$	11.9
Plus: net income attributable to redeemable non-controlling interests	—		0.3
Income from continuing operations	26.0		12.2
Income tax expense	(8.1)		(3.2)
Income from continuing operations before income taxes	34.1		15.4
Acquisition and divestiture expenses	—		0.2
Non-controlling interest compensation allocation	0.4		(0.9)
Amortization of the fair value adjustment to acquisition date inventory	—		10.3
Restructuring and impairment costs	0.4		0.3
Depreciation and amortization expense	23.5		25.9
Corporate expenses	10.7		12.9
Interest expense, net	7.9		6.9
Other income (expense), net	2.2		(1.8)
Adjusted Segment EBITDA	$	79.2	$	69.2

We measure operating performance based on segment earnings before interest, income taxes, depreciation, amortization, and other selected items ("Adjusted Segment EBITDA" or "Segment AEBITDA"), which is segment revenue reduced by operating expenses and other costs identifiable with the segment, excluding acquisition and divestiture expenses, restructuring costs, impairment charges, non-controlling interest compensation, amortization of the fair value adjustment to acquisition date inventory, and depreciation and amortization. Adjusted Segment EBITDA is not defined under GAAP and may not be comparable to similarly-titled measures used by other companies. Corporate expenses include general corporate administrative costs. Expenses not directly attributable to the segments, corporate expenses, net interest expense, gains and losses related to the sale of assets, and income taxes are not included in the computation of Adjusted Segment EBITDA. The accounting policies of the reportable segments are the same as those for EnPro.

Non-controlling interest compensation allocation represents compensation expense associated with the rollover equity subject to put and call options from the acquisitions of LeanTeq and Alluxa that was and is subject to reduction for certain types

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of employment terminations of the respective sellers. This expense is recorded in selling, general, and administrative expenses on our Consolidated Statements of Operations and is directly related to the terms of the acquisitions. This expense is recognized as compensation expense over the term of the respective put and call options unless certain employment terminations occur. The LeanTeq non-controlling interests were acquired by EnPro in December 2022.

Other income (expense), net in the table above contains all items included in other (operating) expense and other income (expense) (non-operating) on our Consolidated Statements of Operations for the three months ended March 31, 2023 and 2022 with the exception of $0.8 million and $1.3 million, respectively, of restructuring costs. As noted previously, restructuring costs are excluded from Adjusted Segment EBITDA. Additionally, other income (expense), net in the table above for the three months ended March 31, 2023 and 2022 includes $0.4 million, and $(1.2) million, respectively, of miscellaneous expenses (income) that are either not associated with a particular segment or not considered part of administering the corporate functions. These expenses are included in selling, general and administrative expense on our Consolidated Statements of Operations.

Three Months Ended March 31, 2023 Compared to the Three Months Ended March 31, 2022

Sales of $282.6 million in the first three months of 2023 increased 4.6% from $270.1 million in the first three months of 2022. The following table summarizes the impact of a divestiture and foreign currency on sales by segment:

Sales	Percent Change Three Months Ended March 31, 2023 vs. Three Months Ended March 31, 2022
increase/(decrease)	Divestiture		Foreign Currency		Organic		Total
EnPro Industries, Inc.	(0.4)	%	(1.3)	%	6.3	%	4.6	%
Sealing Technologies	(0.8)	%	(1.5)	%	15.1	%	12.8	%
Advanced Surface Technologies	—	%	(1.0)	%	(5.3)	%	(6.3)	%

Following is a discussion of operating results for each segment for the first three months of 2023 as compared to the first three months of 2022:

Sealing Technologies. Sales of $173.3 million in the first three months of 2023 reflect a 12.8% increase compared to the $153.6 million reported in the same period of 2022. Excluding the unfavorable foreign exchange translation ($2.2 million) on our sales in the first three months of 2023 and the sales in the first three months of 2022 by the business divested in the fourth quarter of 2022 ($1.1 million), sales were up 15.1% or $23.0 million. The increase in sales was driven by strong demand in the aerospace, general industrial, power generation (nuclear), commercial vehicle and food and pharmaceutical markets, along with the positive impact of strategic pricing initiatives.

Adjusted Segment EBITDA of $49.7 million in the first three months of 2023 increased 44.9% from $34.3 million reported in the first three months of 2022. Segment AEBITDA margins for the segment increased from 22.3% in the first three months of 2022 to 28.7% in the first three months of 2023. Excluding the unfavorable foreign exchange translation ($0.5 million) and the Segment AEBITDA of the business sold in the fourth quarter of 2022 ($0.5 million) from 2022 results, Adjusted Segment EBITDA increased 48.5%, or $16.4 million, to $50.2 million. The increase in Segment AEBITDA was primarily driven by higher pricing ($12.2 million), favorable volume ($7.0 million), and decreased selling, general, and administrative costs ($0.3 million), partially offset by higher material, labor, and overhead costs ($3.1 million).

Advanced Surface Technologies. Sales of $109.4 million in the first three months of 2023 reflect a 6.3% decrease compared to the $116.7 million reported in the same period of 2022. Excluding the unfavorable foreign exchange translation ($1.2 million) from the result of the first three quarters of 2023, sales were down 5.3%, or $6.1 million. This decrease was driven primarily by a near-term slowdown in semiconductor capital equipment spending.

Adjusted Segment EBITDA of $29.5 million in the first three months of 2023 decreased 15.5% from $34.9 million reported in the comparable period of 2022. Segment AEBITDA margins for the segment decreased from 29.9% in the first three months of 2022 to 27.0% in the first three months of 2023. Excluding the unfavorable foreign exchange translation $0.7 million in three months ended March 31, 2023, Adjusted Segment EBITDA decreased $4.7 million, or 13.5%, to $30.2 million. The decrease in Adjusted Segment EBITDA was primarily driven by lower volume and an unfavorable change in mix ($4.6 million) and higher material and labor ($2.3 million) and selling, general, and administrative costs ($1.2 million), partially offset by higher pricing ($3.5 million).

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Corporate expenses for the first three months of 2023 decreased $2.2 million as compared to the same period in 2022. The decrease was driven primarily by lower incentive compensation costs ($1.2 million), restructuring costs ($0.6 million), and professional expenses ($0.5 million).

Interest expense, net in the first three months of 2023 increased by $1.0 million from the first three months of 2022 primarily due to a higher weighted average interest rate on borrowings for the first three months of 2023 as compared to the first three months of 2022, offset partially by higher rates earned on invested cash balances.

Other income (expense), net in the first three months of 2023 decreased by $4.0 million as compared to other income reported in the same period of 2022, primarily due to a year-over-year decrease in pension (non-service) income ($1.1 million), increased bank fees and fewer foreign exchange gains in the current period ($1.6 million), and higher environmental charges ($0.4 million) and foreign exchange losses related to the divestiture of GGB ($0.7 million).

The effective tax rates for the three months ended March 31, 2023 and 2022 were 23.7% and 20.7%, respectively. The effective tax rate for the three months ended March 31, 2023 is primarily driven by higher tax rates in most foreign jurisdictions partially offset by the release of a valuation allowance on certain foreign net operating losses and a tax benefit related to share-based payment awards. The effective tax rate for the three months ended March 31, 2022 is primarily the result of a tax benefit related to share-based payment awards partially offset by higher tax rates in most foreign jurisdictions.

Income from continuing operations attributable to EnPro Industries, Inc. was $26.0 million, or $1.24 per share, in the first three months of 2023 compared to $11.9 million, or $0.57 per share, in the first three months of 2022. Earnings per share is expressed on a diluted basis.

Liquidity and Capital Resources

Cash requirements for, but not limited to, working capital, capital expenditures, acquisitions, and debt repayments have been funded from cash balances on hand, revolver borrowings and cash generated from operations. We are proactively pursuing acquisition opportunities. Should we need additional capital, we have resources available, which are discussed in this section under the heading “Capital Resources.”

As of March 31, 2023, we held $176.0 million of cash and cash equivalents in the United States, $160.1 million of cash outside of the United States, and $35.0 million in short-term interest bearing investments which mature in July 2023. If the funds held outside the United States were needed for our operations in the U.S., we have several methods to repatriate without significant tax effects, including repayment of intercompany loans, distributions subject to a 100 percent dividends-received deduction for income tax purposes, or distributions of previously-taxed earnings.

Because of the transition tax, GILTI, and Subpart F provisions, undistributed earnings of our foreign subsidiaries totaling $225.1 million at December 31, 2021 have been subjected to U.S. income tax or are eligible for the 100 percent dividends-received deduction under Section 245A of the Internal Revenue Code ("IRC") provided in the Tax Cuts and Jobs Act. Additional undistributed earnings are estimated to be $77.3 million as of March 31, 2023. Whether through the application of the 100 percent dividends received deduction, or distribution of these previously-taxed earnings, we do not intend to distribute foreign earnings that will be subject to any significant incremental U.S. or foreign tax. During the first three months of 2023 we repatriated $8.8 million which was utilized to paydown our U.S.-based indebtedness and reduce our interest expense. We have targeted the repatriation of an additional $90.0 million by December 31, 2023 for further unscheduled paydowns of our indebtedness. We have determined that estimating any tax liability on our investment in foreign subsidiaries is not practicable. Therefore, we have not recorded any deferred tax liability on undistributed earnings of foreign subsidiaries.

Cash Flows

Operating activities of continuing operations provided $26.4 million of cash in the first three months of 2023 and $27.4 million of cash in the first three months of 2022. The year-over-year decrease was primarily driven by a $6.9 million increase in interest payments partially offset by increased profitability.

Investing activities of continuing operations used $14.8 million of cash in the first three months of 2023 compared to $2.5 million of cash used during the first three months of 2022. This decrease is driven by the investment of $35.0 million in short-term interest bearing investments which does not qualify as a cash equivalent, partially offset by $25.3 million in net cash proceeds received from the sale of businesses.

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Financing activities of continuing operations used $12.0 million of cash in the first three months of 2023, primarily from $4.0 million in net repayments of debt and $6.2 million used for dividends paid. Financing activities in the first three months of 2022 used $60.4 million, primarily from $5.9 million used for dividends paid and $47.9 million in net repayments of debt.

Capital Resources

Senior Secured Credit Facilities. On December 17, 2021, we entered into a Third Amended and Restated Credit Agreement (the “Amended Credit Agreement”) among the Company and EnPro Holdings, as borrowers, certain foreign subsidiaries of the Company from time to time party thereto, as designated borrowers, the guarantors party thereto, the lenders party thereto and Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer. The Amended Credit Agreement amends, restates and replaces the Second Amended and Restated Credit Agreement dated as of June 28, 2018, as amended, among the Company and EnPro Holdings as borrowers, the guarantors party thereto, the lenders party thereto and Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer.

The Amended Credit Agreement provides for credit facilities in the initial aggregate principal amount of $1,007.5 million, consisting of a five-year, senior secured revolving credit facility of $400.0 million (the “Revolving Credit Facility”), a $142.5 million senior secured term loan facility in replacement of the our existing senior secured term loan facility, maturing September 25, 2024 (the “Term Loan A-1 Facility”), a five-year, senior secured term loan facility of $315.0 million (the “Term Loan A-2 Facility”) and a 364-day, senior secured term loan facility of $150.0 million (the “364-Day Facility” and together with the Revolving Credit Facility, the Term Loan A-1 Facility and the Term Loan A-2 Facility, the “Facilities”). The Amended Credit Agreement also provides that we may seek incremental term loans and/or additional revolving credit commitments in an amount equal to the greater of $275.0 million and 100% of consolidated EBITDA for the most recently ended four-quarter period for which we have reported financial results, plus additional amounts based on a consolidated senior secured leverage ratio. The Amended Credit Agreement became effective on December 17, 2021.

Borrowings under the 364-Day Facility bore interest at an annual rate of LIBOR plus 1.50% or base rate plus 0.50%. Initially, borrowings under the Facilities (other than the 364-Day Facility) bore interest at an annual rate of LIBOR plus 1.75% or base rate plus 0.75%, although these interest rates were subject to incremental increase or decrease based on a consolidated total net leverage ratio. On November 8, 2022, we entered into a First Amendment to the Amended Credit Agreement, which replaced the LIBOR-based interest rate option with an option based on Term SOFR ("Secured Overnight Financing Rate") plus (i) a credit spread adjustment of 0.10% and (ii) 1.75%, again subject to incremental increase or decrease based on a consolidated total net leverage ratio. In addition, a commitment fee accrues with respect to the unused amount of the Revolving Credit Facility at an annual rate of 0.225%, which rate is also subject to incremental increase or decrease based on a consolidated total net leverage ratio.

The Term Loan A-1 Facility amortizes on a quarterly basis in an annual amount equal to 2.50% of the original principal amount of the Term Loan A-1 Facility ($150.0 million) in year one after the closing, 5.00% of such original principal amount in year two and 1.25% of such original principal amount in each of the first three quarters of year three, with the remaining outstanding principal amount payable at maturity. The Term Loan A-2 Facility amortizes on a quarterly basis in an annual amount equal to 2.5% of the original principal amount of the Term Loan A-2 Facility in each of years one through three, 5.0% of such original principal amount in year four and 1.25% of such original principal amount in each of the first three quarters of year five, with the remaining outstanding principal amount payable at maturity. The Facilities are subject to prepayment with the net cash proceeds of certain asset sales not reinvested in acquisitions within a specified period, casualty or condemnation events, and non-permitted debt issuances. There is no prepayment penalty for a full or partial repayment of the Facilities at any time.

The Company and EnPro Holdings are the permitted borrowers under the Facilities. The Company may also from time to time designate any of its wholly owned foreign subsidiaries as a borrower under the Revolving Credit Facility. Each of the Company’s domestic subsidiaries (other than any subsidiaries that may be designated as “unrestricted” by the Company from time to time, and inactive subsidiaries) is required to guarantee the obligations of the borrowers under the Facilities, and each of the Company’s existing domestic subsidiaries (other than inactive subsidiaries) has entered into the Amended Credit Agreement to provide such a guarantee.

The Facilities are subject to prepayment with the net cash proceeds of certain asset sales, casualty or condemnation events, and non-permitted debt issuances.

Borrowings under the Facilities are secured by a first-priority pledge of the following assets:

•100% of the capital stock of each domestic subsidiary of the Company (other than unrestricted or inactive subsidiaries);

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•65% of the capital stock of any first tier foreign subsidiary of the Company and its domestic subsidiaries (other than unrestricted or inactive subsidiaries); and

•substantially all of the assets (including, without limitation, machinery and equipment, inventory and other goods, accounts receivable, bank accounts, general intangibles, financial assets, investment property, license rights, patents, trademarks, trade names, copyrights, chattel paper, insurance proceeds, contract rights, hedge agreements, documents, instruments, indemnification rights, tax refunds and cash, but excluding real estate interests) of the Company and its domestic, consolidated subsidiaries (other than unrestricted or inactive subsidiaries)

The Amended Credit Agreement contains certain financial covenants and required financial ratios, including:

•a maximum consolidated total net leverage ratio of not more than 4.75 to 1.0 (with total debt, for the purposes of such ratio, to be net of up to $150 million of unrestricted cash of EnPro Industries, Inc. and its consolidated subsidiaries), which ratio will decrease to 4.5 to 1.0 for each fiscal quarter beginning with the fiscal quarter ending March 31, 2022 and ending with the fiscal quarter ending December 31, 2022, and to 4.0 to 1.0 for each quarter thereafter; and, once so decrease, may be increased (up to three times) at the borrowers' option to not more than 4.5 to 1.0 for the for-quarter period following a significant acquisition; and

•a minimum consolidated interest coverage ratio of at least 2.5 to 1.0.

The Amended Credit Agreement contains affirmative and negative covenants (subject, in each case, to customary exceptions and qualifications), including covenants that limit our ability to, among other things:

•grant liens on our assets;

•incur additional indebtedness (including guarantees and other contingent obligations);

•make certain investments (including loans and advances);

•merge or make other fundamental changes;

•sell or otherwise dispose of property or assets;

•pay dividends and other distributions and prepay certain indebtedness;

•make changes in the nature of our business;

•enter into transactions with our affiliates;

•enter into burdensome contracts; and

•modify or terminate documents related to certain indebtedness.

We were in compliance with all of the covenants of the Amended Credit Agreement as of March 31, 2023.

The borrowing availability under our Revolving Credit Facility at March 31, 2023 was $389.2 million after giving consideration to $10.8 million of outstanding letters of credit. The balance of our outstanding Term Loan A-1 Facility and Term Loan A-2 Facility at March 31, 2023 was $134.9 million and $305.3 million, respectively.

Senior Notes. In October 2018, we completed the offering of $350.0 million aggregate principal amount of 5.75% Senior Notes due 2026 (the "Senior Notes").

The Senior Notes were issued to investors at 100% of the principal amount thereof. The Senior Notes are unsecured, unsubordinated obligations of EnPro and mature on October 15, 2026. Interest on the Senior Notes accrues at a rate of 5.75% per annum and is payable semi-annually in cash in arrears on April 15 and October 15 of each year, commencing April 15, 2019. The Senior Notes are required to be guaranteed on a senior unsecured basis by each of EnPro’s existing and future direct and indirect domestic subsidiaries that is a borrower under, or guarantees, our indebtedness under the Revolving Credit Facility or guarantees any other Capital Markets Indebtedness (as defined in the indenture governing the Senior Notes) of EnPro or any of the guarantors. We may, on any one or more occasions, redeem all or a part of the Senior Notes at specified redemption prices plus accrued and unpaid interest.

Each holder of the Senior Notes may require us to repurchase some or all of the Senior Notes held by such holder for cash upon the occurrence of a defined “change of control” event. Our ability to redeem the Senior Notes prior to maturity is subject to certain conditions, including in certain cases the payment of make-whole amounts.

The indenture governing the Senior Notes includes covenants that restrict our ability to engage in certain activities, including incurring additional indebtedness, paying dividends and repurchasing shares of our common stock, subject in each case to specified exceptions and qualifications set forth in the indenture.The indenture further requires us to apply the net cash proceeds of certain asset sales not reinvested in acquisitions, or used to repay or otherwise reduce specified indebtedness within a specified period, in the event of the net proceeds exceeding a specified amount, to offer to repurchase the Senior Notes at a price equal to 100.0% of the principal amount thereof plus accrued and unpaid interest. This requirement applies to the net cash

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proceeds received in the divestitures of GGB and GPT and could require us to make such an offer to repurchase the Senior Notes in the first quarter of 2024 to the extent we do not sufficiently invest in acquisitions, assets, property or capital expenditures or repay or otherwise reduce specified indebtedness by then.

At March 31, 2023, we were in compliance with all of the covenants of the indenture governing the Senior Notes.

Share Repurchase Program. In October 2022, our board of directors authorized the expenditure of up to $50.0 million for the repurchase of our outstanding common shares through October 2024. We have not made any repurchases under this authorization or the prior two-year $50.0 million authorization which expired in October 2022.

Critical Accounting Estimates

Please refer to "Critical Accounting Estimates" in "Management's Discussion and Analysis of Financial Condition and Results of Operations" included in our annual report on Form 10-K for the fiscal year ended December 31, 2022, for a discussion of our critical accounting estimates, which is incorporated here by reference.

Contingencies

A description of our contingencies is included in Note 15 to the Consolidated Financial Statements in this report, which is incorporated herein by reference.

Supplemental Guarantor Financial Information

On October 17, 2018, we completed the offering of the Senior Notes. The Senior Notes are fully and unconditionally guaranteed on an unsecured, unsubordinated, joint and several basis by our wholly owned direct and indirect domestic subsidiaries, that are each guarantors of our Revolving Credit Facility, including subsidiaries that were wholly owned at the time they provided the guarantee but thereafter became majority owned subsidiaries (collectively, the “Guarantor Subsidiaries”).  The Guarantor Subsidiaries at March 31, 2023 comprise all of our consolidated domestic subsidiaries at that date. Our subsidiaries organized outside of the United States (collectively, the “Non-Guarantor Subsidiaries”) do not guarantee the Senior Notes.

The Guarantor Subsidiaries jointly and severally guarantee on an unsecured, unsubordinated basis the performance and punctual payment when due, whether at stated maturity of the Senior Notes, by acceleration or otherwise, all of our obligations under the Senior Notes and the indenture governing the Senior Notes (the “Indenture”), whether for payment of principal of, premium, if any, or interest on the Senior Notes, expenses, indemnification or otherwise (all such obligations guaranteed by the Guarantor Subsidiaries are referred to as the “Guaranteed Obligations”). The Guarantor Subsidiaries have jointly and severally agreed to pay, in addition to the obligations stated above, any and all expenses (including reasonable counsel fees and expenses) incurred by the trustee (the “Trustee”) under the Indenture in enforcing any rights under their guarantees of the Guaranteed Obligations.

Each guarantee of a Guarantor Subsidiary is limited to an amount not to exceed the maximum amount that can be guaranteed by it without rendering the guarantee, as it relates to such Guarantor Subsidiary, voidable under applicable law relating to fraudulent conveyance or fraudulent transfer or similar laws affecting the rights of creditors generally. Each guarantee of a Guarantor Subsidiary is a continuing guarantee and shall inure to the benefit of and be enforceable by the Trustee, the holders of the Senior Notes and their successors, transferees and assigns and, subject to the provisions described in the following sentence, remains in full force and effect until payment in full of all of the Guaranteed Obligations of such Guarantor Subsidiary and is binding upon such Guarantor Subsidiary and its successors. A guarantee of the Senior Notes by a Guarantor Subsidiary is subject to release in the following circumstances: (i) the sale, disposition, exchange or other transfer (including through merger, consolidation, amalgamation or otherwise) of the capital stock of the subsidiary made in a manner not in violation of the Indenture; (ii) the designation of the subsidiary as an “Unrestricted Subsidiary” under the Indenture; (iii) the legal defeasance or covenant defeasance of the Senior Notes in accordance with the terms of the Indenture; or (iv) the subsidiary ceasing to be our subsidiary as a result of any foreclosure of any pledge or security interest securing our Revolving Credit Facility or other exercise of remedies in respect thereof.

The following tables present summarized financial information for EnPro Industries, Inc. (the "Parent") and the Guarantor Subsidiaries on a combined basis after intercompany eliminations.

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The summarized results of operations for the three months ended March 31, 2023 were as follows:

(Stated in Millions of Dollars)	Parent and Guarantor Subsidiaries
Net sales	$	201.6
Gross profit	70.4
Income from continuing operations	5.0
Income from discontinued operations, net of tax	11.4
Net income	$	16.4
Net income attributable to EnPro Industries, Inc.	$	16.4

Of the $11.4 million reported in income from discontinued operations, net of taxes, $11.2 million related to gain on the sale of discontinued operations recognized by a subsidiary that is guarantor of the Senior Notes and the remaining $0.2 million related to the operations of former subsidiary guarantors of the Senior Notes included in discontinued operations. All discontinued operations were divested by the first quarter of 2023 and are no longer guarantors of the Senior Notes.

The summarized balance sheet at March 31, 2023 was as follows:

(Stated in Millions of Dollars)	Parent and Guarantor Subsidiaries
ASSETS
Current assets	$	468.7
Non-current assets	1,500.7
Total assets	$	1,969.4
LIABILITIES AND EQUITY
Current liabilities	$	144.7
Non-current liabilities	1,057.5
Total liabilities	1,202.2
Redeemable non-controlling interests	17.9
Shareholders’ equity	749.3
Total liabilities and equity	$	1,969.4

The table above reflects $13.0 million of current intercompany receivables due to the Guarantor Subsidiaries from the Non-Guarantor Subsidiaries and $10.6 million of current intercompany payables due to the Non-Guarantor Subsidiaries from the Guarantor Subsidiaries within total current assets and liabilities.

The summarized results of operations for the year ended December 31, 2022 were as follows:

(Stated in Millions of Dollars)	Parent and Guarantor Subsidiaries
Net sales	$	797.8
Gross profit	257.7
Loss from continuing operations	(84.8)
Income from discontinued operations, net of taxes	60.2
Net loss	$	(24.6)
Net loss attributable to Enpro Industries, Inc	$	(21.8)

Of the $60.2 million reported in income from discontinued operations, net of taxes, $53.1 million related to gain on the sale of discontinued operations recognized by a subsidiary that is guarantor of the Senior Notes and the remaining $7.1 million related to the operations of former subsidiary guarantors of the Senior Notes included in discontinued operations. All discontinued operations were divested by the first quarter of 2023 and are no longer guarantors of the Senior Notes.

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The summarized balance sheet at December 31, 2022 was as follows:

(Stated in Millions of Dollars)	Parent and Guarantor Subsidiaries
ASSETS
Current assets	$	454.5
Non-current assets	1,517.3
Total assets	$	1,971.8
LIABILITIES AND EQUITY
Current liabilities	$	158.5
Non-current liabilities	1,067.6
Total liabilities	1,226.1
Redeemable non-controlling interests	17.9
Shareholders’ equity	727.8
Total liabilities and equity	$	1,971.8

The table above reflects $11.7 million of current intercompany receivables due to the Guarantor Subsidiaries from the Non-Guarantor Subsidiaries and $9.3 million of current intercompany payables due to the Non-Guarantor Subsidiaries from the Guarantor Subsidiaries within current assets and liabilities held and used.

The Senior Notes are structurally subordinated to the indebtedness and other liabilities of the Non-Guarantor Subsidiaries. The Non-Guarantor Subsidiaries are separate and distinct legal entities and have no obligation, contingent or otherwise, to pay any amounts due pursuant to the Senior Notes or the Indenture, or to make any funds available therefor, whether by dividends, loans, distributions or other payments. Any right that the Company or the Guarantor Subsidiaries have to receive any assets of any of the Non-Guarantor Subsidiaries upon the liquidation or reorganization of any Non-Guarantor Subsidiary, and the consequent rights of holders of Senior Notes to realize proceeds from the sale of any of a Non-Guarantor Subsidiary’s assets, would be effectively subordinated to the claims of such Non-Guarantor Subsidiary’s creditors, including trade creditors and holders of preferred equity interests, if any, of such Non-Guarantor Subsidiary. Accordingly, in the event of a bankruptcy, liquidation or reorganization of any of the Non-Guarantor Subsidiaries, the Non-Guarantor Subsidiaries will pay the holders of their debts, holders of preferred equity interests, if any, and their trade creditors before they will be able to distribute any of their assets to the Company or any Guarantor Subsidiaries.

If a Guarantor Subsidiary were to become a debtor in a case under the U.S. Bankruptcy Code or encounter other financial difficulty, under federal or state fraudulent transfer or conveyance law, a court may avoid, subordinate or otherwise decline to enforce its guarantee of the Senior Notes. A court might do so if it is found that when such Guarantor Subsidiary entered into its guarantee of the Senior Notes, or in some states when payments became due under the Senior Notes, such Guarantor Subsidiary received less than reasonably equivalent value or fair consideration and either:

•was insolvent or rendered insolvent by reason of such incurrence;

•was left with unreasonably small or otherwise inadequate capital to conduct our business; or

•believed or reasonably should have believed that it would incur debts beyond its ability to pay.

The court might also avoid the guarantee of the Senior Notes without regard to the above factors, if the court found that the Guarantor Subsidiary entered into its guarantee with actual intent to hinder, delay or defraud our creditors.

A court would likely find that a Guarantor Subsidiary did not receive reasonably equivalent value or fair consideration for its guarantee of the Senior Notes, if such Guarantor Subsidiary did not substantially benefit directly or indirectly from the funding made available by the issuance of the Senior Notes. If a court were to avoid a guarantee of the Senior Notes provided by a Guarantor Subsidiary, holders of the Senior Notes would no longer have any claim against such Guarantor Subsidiary. The measures of insolvency for purposes of these fraudulent transfer or conveyance laws will vary depending upon the law applied in any proceeding to determine whether a fraudulent transfer or conveyance has occurred, such that we cannot predict what standards a court would use to determine whether or not a Guarantor Subsidiary was solvent at the relevant time or, regardless of the standard that a court uses, that the guarantee of a Guarantor Subsidiary would not be subordinated to such Guarantor Subsidiary’s other debt. As noted above, each guarantee provided by a Guarantor Subsidiary includes a provision intended to

29

limit the Guarantor Subsidiary’s liability to the maximum amount that it could incur without causing the incurrence of obligations under its guarantee to be a fraudulent transfer or conveyance. This provision may not be effective to protect those guarantees from being avoided under fraudulent transfer or conveyance law, or it may reduce that Guarantor Subsidiary’s obligation to an amount that effectively makes its guarantee worthless, and we cannot predict whether a court will ultimately find it to be effective.

On the basis of historical financial information, operating history and other factors, we believe that each of the Guarantor Subsidiaries, after giving effect to the issuance of its guarantee of the Senior Notes when such guarantee was issued, was not insolvent, did not have unreasonably small capital for the business in which it engaged and did not and has not incurred debts beyond its ability to pay such debts as they mature. We cannot assure you, however, as to what standard a court would apply in making these determinations or that a court would agree with our conclusions in this regard.

Reconciliations of Non-GAAP Financial Measures to the Comparable GAAP Measures

We believe that it would be helpful to the readers of the financial statements to understand the impact of certain selected items on our reported income from continuing operations attributable to EnPro Industries, Inc. and diluted earnings per share attributable to EnPro Industries, Inc. continuing operations, including items that may recur from time to time. The items adjusted for in these non-GAAP financial measures are those that are excluded by management in budgeting or projecting for performance in future periods, as they typically relate to events specific to the period in which they occur. Accordingly, these are some of the factors the company uses in internal evaluations of the overall performance of its businesses. In addition, management believes these non-GAAP financial measures are commonly used financial measures for investors to evaluate the company’s operating performance and, when read in conjunction with the company’s consolidated financial statements, present a useful tool to evaluate the company’s ongoing operations and performance from period to period. Management acknowledges that there are many items that impact a company’s reported results and the adjustments reflected in these non-GAAP financial measures are not intended to present all items that may have impacted these results. In addition, these non-GAAP measures are not necessarily comparable to similarly titled measures used by other companies.

The following presents a reconciliation of (i) income from continuing operations attributable to EnPro Industries, Inc., net of tax to adjusted net income attributable to EnPro Industries, Inc. and adjusted diluted earnings per share and (ii) income from continuing operations attributable to EnPro Industries, Inc., net of tax to adjusted EBITDA for the three months ended March 31, 2023 and 2022. The adjustments in the table below relate solely to expenses attributable to EnPro Industries, Inc. and have been adjusted to remove any amounts attributable to non-controlling interests.

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Reconciliation of Income from Continuing Operations Attributable to EnPro Industries, Inc., Net of Tax to Adjusted Income from Continuing Operations Attributable to EnPro Industries, Inc. and Adjusted Diluted Earnings Per Share

In Millions, Except Per Share Amounts	Three Months Ended March 31,
	2023						2022
	$		Average common shares outstanding, diluted	Per Share			$		Average common shares outstanding, diluted	Per Share
Income from continuing operations attributable to EnPro Industries, Inc., net of tax	$	26.0	20.9	$	1.24		$	11.9	20.9	$	0.57
Net income from redeemable non-controlling interests	—						0.3
Income tax expense	8.1						3.2
Income from continuing operations before income taxes	34.1						15.4
Adjustments from selling, general, and administrative:
Acquisition and divestiture expenses	—						0.6
Non-controlling interest compensation allocations2	0.3						(0.9)
Amortization of acquisition-related intangible assets	17.2						18.9
Adjustments from other operating expense and cost of sales:
Restructuring and impairment expense	0.8						1.3
Amortization of the fair value adjustment to acquisition date inventory	—						10.2
Adjustments from other non-operating expense:
Environmental reserve adjustment	0.1						(0.3)
Costs associated with previously disposed businesses	0.2						0.2
Pension income (non-service cost)	0.4						(0.8)
Foreign exchange losses related to the divestiture of a discontinued operation3	0.7						—
Other adjustments:
Other4	0.4						0.2
Adjusted income from continuing operations before income taxes	54.2						44.8
Adjusted income tax expense5	(13.5)						(12.1)
Net income from redeemable non-controlling interests	—						(0.3)
Adjusted income from continuing operations attributable to EnPro Industries, Inc.	$	40.7	20.9	$	1.95	1	$	32.4	20.9	$	1.56	1

1 Adjusted diluted earnings per share attributable to EnPro Industries, Inc. Per share amounts were calculated by dividing by the weighted-average shares of diluted common stock outstanding during the periods.

2 Non-controlling interest compensation allocation represents compensation expense associated with the rollover equity subject to put and call options from the acquisitions of LeanTeq and Alluxa that is subject to reduction for certain types of employment terminations of the LeanTeq and Alluxa sellers and is directly related to the terms of the respective acquisitions. This expense is recognized as compensation expense over the term of the respective put and call options unless certain employment terminations occur. The LeanTeq non-controlling interests were acquired by EnPro in December 2022.

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3 In connection with the sale of GGB, accounted for as a discontinued operation, in the fourth quarter of 2022, we issued an intercompany note between a domestic and foreign entity that was denominated in a foreign currency. As a result of this note, we recorded a loss due to the change in exchange rate during the first quarter of 2023. In January 2023, we hedged the outstanding notes and expect future gains or losses to be minimal.

4 Other adjustments are included in selling, general, and administrative, cost of sales, and other operating expenses on the consolidated statements of operations.

5 The adjusted income tax expense presented above is calculated using a normalized company-wide effective tax rate excluding discrete items of 25.0% in 2023 and 27.0% rate in 2022.

Reconciliation of Income from Continuing Operations Attributable to EnPro Industries, Inc., Net of Tax to Adjusted EBITDA

In Millions
	Three Months Ended
	March 31,
	2023		2022
Income from continuing operations attributable to EnPro Industries, Inc., net of tax	$	26.0	$	11.9
Net income attributable to redeemable non-controlling interests	—		0.3
Income from continuing operations	26.0		12.2
Adjustments to arrive at earnings before interest, income taxes, depreciation, amortization, and other selected items (Adjusted EBITDA):
Interest expense, net	7.9		6.9
Income tax expense	8.1		3.2
Depreciation and amortization expense	23.6		26.1
Restructuring and impairment expense	0.8		1.3
Environmental reserve adjustments	0.1		(0.3)
Costs associated with previously disposed businesses	0.2		0.2
Acquisition and divestiture expenses	—		0.6
Pension income (non-service cost)	0.4		(0.8)
Non-controlling interest compensation allocation1	0.4		(0.9)
Amortization of the fair value adjustment to acquisition date inventory	—		10.3
Foreign exchange losses related to the divestiture of a discontinued operation2	0.7		—
Other	0.4		0.2
Adjusted EBITDA	$	68.6	$	59.0

1 Non-controlling interest compensation allocation represents compensation expense associated with the rollover equity subject to put and call options from the acquisitions of LeanTeq and Alluxa that is subject to reduction for certain types of employment terminations of the LeanTeq and Alluxa sellers and is directly related to the terms of the respective acquisitions. This expense is recognized as compensation expense over the term of the respective put and call options unless certain employment terminations occur. The LeanTeq non-controlling interests were acquired by EnPro in December 2022.

2 In connection with the sale of GGB, accounted for as a discontinued operation, in the fourth quarter of 2022, we issued an intercompany note between a domestic and foreign entity that was denominated in a foreign currency. As a result of this note, we recorded a loss due to the change in exchange rate during the first quarter of 2023. In January 2023, we hedged the outstanding notes and expect future gains or losses to be minimal.

Adjusted EBITDA as presented in the table above also represents the amount defined as "EBITDA" under the Indenture.

Item 3.     Quantitative and Qualitative Disclosures About Market Risk

We are exposed to certain market risks as part of our ongoing business operations, including risks from changes in foreign currency exchange rates and interest rates that could impact our financial condition, results of operations and cash flows. We manage our exposure to these and other market risks through regular operating and financing activities and through the use of derivative financial instruments. We intend to use derivative financial instruments as risk management tools and not

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for speculative investment purposes. For information about our interest rate risk, see “Quantitative and Qualitative Disclosures about Market Risk – Interest Rate Risk” in our annual report on Form 10-K for the year ended December 31, 2022.

Foreign Currency Risk

We are exposed to foreign currency risks that arise from normal business operations. These risks include the translation of local currency balances on our foreign subsidiaries’ balance sheets, intercompany loans with foreign subsidiaries and transactions denominated in foreign currencies. We strive to control our exposure to these risks through our normal operating activities and, where appropriate, through derivative instruments. We periodically enter into contracts to hedge forecasted transactions that are denominated in foreign currencies. We regularly enter into a forward contract to hedge a 95 million Euro exposure on an intercompany note agreement related to proceeds from the GGB sale allocated to foreign subsidiaries. We expect this intercompany note to be settled during 2023. The notional amount of foreign exchange contracts was $104.8 million and $103.3 million March 31, 2023 and December 31, 2022 respectively. All foreign exchange contracts outstanding at December 31, 2022 expired in January of 2023.

The notional amounts of all of our foreign exchange contracts were recorded at their fair market value as of December 31, 2022 with changes in market value recorded in income. The earnings impact of any foreign exchange contract that is specifically related to the purchase of inventory is recorded in cost of sales and the changes in market value of all other contracts are recorded in selling, general and administrative expense in the Consolidated Statements of Operations. The balances of foreign exchange derivative assets are recorded in other current assets and the balances of foreign exchange derivative liabilities are recorded in accrued expenses in the Consolidated Balance Sheets.

In May 2019, we entered into additional cross-currency swap agreements with a notional amount of $100.0 million to manage foreign currency risk by effectively converting a portion of the interest payments related to our fixed-rate USD-denominated Senior Notes, including the semi-annual interest payments thereunder, to interest payments on fixed-rate Euro-denominated debt of 89.6 million EUR with a weighted average interest rate of 3.5% , with interest payment dates of April 15 and October 15 of each year. The swap agreement matures on October 15, 2026.

During the term of the additional swap agreement, we will receive semi-annual payments from the counterparties due to the difference between the interest rate on the Senior Notes and the interest rate on the Euro debt underlying the additional swap agreements. There was no principal exchange at the inception of the arrangements, and there will be no exchange at maturity. At maturity (or earlier at our option), we and the counterparties will settle the additional swap agreements at their fair value in cash based on the aggregate notional amount and the then-applicable currency exchange rate compared to the exchange rate at the time the additional swap agreements were entered into.

Commodity Risk

We source a wide variety of materials and components from a network of global suppliers. While such materials are typically available from numerous suppliers, commodity raw materials such as steel, engineered plastics, copper and polymers, are subject to price fluctuations, which could have a negative impact on our results. We strive to pass along such commodity price increases to customers to avoid profit margin erosion and utilize lean initiatives to further mitigate the impact of commodity raw material price fluctuations as we achieve improved efficiencies. We do not hedge commodity risk with any market risk sensitive instruments.

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Item 4.    Controls and Procedures

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this report, we carried out an evaluation, under the supervision and with the participation of our chief executive officer and chief financial officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934 (the “Exchange Act”)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)). The purpose of our disclosure controls and procedures is to provide reasonable assurance that information required to be disclosed in our reports filed under the Exchange Act, including this report, is recorded, processed, summarized and reported within the time periods specified, and that such information is accumulated and communicated to our management to allow timely decisions regarding disclosure.

Based on the controls evaluation, our chief executive officer and chief financial officer have concluded that our disclosure controls and procedures are effective to reasonably ensure that information required to be disclosed in our reports filed under the Exchange Act is recorded, processed, summarized and reported within the time periods specified, and that management will be timely alerted to material information required to be included in our periodic reports filed with the Securities and Exchange Commission.

In addition, no change in our internal control over financial reporting has occurred during the quarter ended March 31, 2023, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II

OTHER INFORMATION

 Item 1.    Legal Proceedings.

A description of environmental and other legal matters is included in Note 15 to the Consolidated Financial Statements in this report, which is incorporated herein by reference. In addition to the matters noted and discussed in those sections of this report, we are from time to time subject to, and are presently involved in, other litigation and legal proceedings arising in the ordinary course of business. We believe that the outcome of such other litigation and legal proceedings will not have a material adverse effect on our financial condition, results of operations and cash flows.

Item 2.    Unregistered Sales of Equity Securities and Use of Proceeds.

The following table sets forth all purchases made by or on behalf of the Company or any “affiliated purchaser,” as defined in Rule 10b-18(a)(3) under the Exchange Act, of shares of our common stock during each month in the first quarter of 2023.

Period	(a) Total Number of Shares (or Units) Purchased		(b) Average Price Paid per Share (or Unit)			(c) Total Number of Shares (or Units) Purchased as Part  of Publicly Announced Plans or Programs	(d) Maximum Number (or Approximate Dollar Value) of Shares (or  Units) That May Yet Be Purchased Under the Plans or Programs
January 1 - January 31, 2023	—		—			—	$50,000,000	(1)
February 1 - February 28, 2023	—		—			—	$50,000,000	(1)
March 1 - March 31, 2023	164	(2)	$	99.58	(2)	—	$50,000,000	(1)
Total	164	(2)	$	99.58	(2)	—	$50,000,000	(1)

(1)In October 2022, our board of directors authorized an expenditure program of up to $50.0 million for the repurchase of our outstanding common shares through October 2024. We have not made any repurchases under this authorization.

(2)In March 2023, a total of 164 shares were transferred to a rabbi trust that we established in connection with our Deferred Compensation Plan for Non-Employee Directors, pursuant to which non-employee directors may elect to defer directors’ fees into common stock units. EnPro Holdings furnished these shares in exchange for management and other services provided by EnPro. Of these shares, 89 shares were valued at a price of $95.94 per share, the closing trading price of our common stock on March 15, 2023, and 75 of these shares were valued at a price of $103.89 per share, the closing trading price of our common stock on March 31, 2023. Accordingly, the total 164 shares were valued at a weighted average price of $99.58. We do not consider the transfer of shares from EnPro Holdings in this context to be pursuant to a publicly announced plan or program.

Item 6.    Exhibits.

The exhibits to this report on Form 10-Q are listed in the following Exhibit Index.

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EXHIBIT INDEX

2.1	Purchase and Sale Agreement dated as of November 4, 2021 among TCFII NxEdge Holdings, LLC, TCFII NxEdge LLC and EnPro Holdings, Inc. (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8 K filed by EnPro Industries, Inc. on November 5, 2021 (File No. 001-31225))
2.2	Equity Purchase Agreement dated as of September 5, 2022 between EnPro Holdings, Inc. EnPro Luxembourg Holding Company S.A.R.L., EnPro German Holding GmbH, Coltec Industries Pacific PTE. LTD. and Garlock GmbH and The Timken Company, Groeneveld-Beka GmbH, Groeneveld-Beka France S.a.r.l and Timken Europe B.V. (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8 K filed by EnPro Industries, Inc. on September 6, 2022 (File No. 001-31225))
2.3	Put Option Agreement dated as of September 5, 2022 between EnPro Holdings, Inc., EnPro Luxembourg Holding Company S.a.r.l., The Timken Company and Groeneveld-Beka France S.a.r.l. (incorporated by reference to Exhibit 10.2 to the Current Report on Form 8 K filed by EnPro Industries, Inc. on September 6, 2022 (File No. 001-31225))
31.1†	Certification of Chief Executive Officer pursuant to Rule 13a – 14(a)/15d – 14(a)
31.2†	Certification of Chief Financial Officer pursuant to Rule 13a – 14(a)/15d – 14(a)
32†	Certification pursuant to Section 1350
101.SCH†	InlineXBRL Taxonomy Extension Schema Document
101.CAL†	InlineXBRL Taxonomy Extension Calculation Linkbase Document
101.DEF†	InlineXBRL Taxonomy Extension Definitions Linkbase Document
101.LAB†	InlineXBRL Taxonomy Extension Label Linkbase Document
101.PRE†	InlineXBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in the Interactive Data Files submitted as Exhibits 101.*)

    † Filed herewith

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Charlotte, North Carolina on this 2nd day of May, 2023.

ENPRO INDUSTRIES, INC.
By:	/s/ Robert S. McLean
	Robert S. McLean
	Executive Vice President, General Counsel and Secretary
By:	/s/ Steven R. Bower
	Steven R. Bower
	Senior Vice President, Controller and Chief Accounting Officer

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EX-31.1

Exhibit 31.1

CERTIFICATION

I, Eric A. Vaillancourt, certify that:

1. I have reviewed this Form 10-Q for the quarter ended March 31, 2023 of EnPro Industries, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 2, 2023	/s/ Eric A. Vaillancourt
		Eric A. Vaillancourt
		President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, J. Milton Childress, certify that:

1. I have reviewed this Form 10-Q for the quarter ended March 31, 2023 of EnPro Industries, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 2, 2023	/s/ J. Milton Childress
		J. Milton Childress
		Executive Vice President and Chief Financial Officer

EX-32

Exhibit 32

CERTIFICATION

The undersigned chief executive officer and chief financial officer of the registrant each certifies pursuant to 18 U.S.C. § 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to his knowledge, this report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, and that to his knowledge, the information contained in this report fairly presents, in all material respects, the financial condition and results of operations of the registrant.

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to EnPro Industries, Inc. and will be retained by EnPro Industries, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

Date:	May 2, 2023	/s/ Eric A. Vaillancourt
		Eric A. Vaillancourt
		President and Chief Executive Officer
Date:	May 2, 2023	/s/ J. Milton Childress
		J. Milton Childress
		Executive Vice President and Chief Financial Officer

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Cover Page - shares	3 Months Ended
	Mar. 31, 2023	Apr. 27, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
Document Transition Report	false
Entity File Number	001-31225
Entity Registrant Name	ENPRO INDUSTRIES, INC
Entity Incorporation, State or Country Code	NC
Entity Tax Identification Number	01-0573945
Entity Address, Street	5605 Carnegie Boulevard
Entity Address, Suite	Suite 500
Entity Address, City	Charlotte
Entity Address, State	NC
Entity Address, Postal Zip Code	28209
City Area Code	704
Local Phone Number	731-1500
Title of each class	Common stock, $0.01 par value
Trading Symbol(s)	NPO
Name of each exchange on which registered	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		20,878,123
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001164863
Current Fiscal Year End Date	--12-31

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CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Net sales	$ 282.6	$ 270.1
Cost of sales	166.5	175.4
Gross profit	116.1	94.7
Operating expenses:
Selling, general and administrative	71.5	71.7
Other	0.8	1.3
Total operating expenses	72.3	73.0
Operating income	43.8	21.7
Interest expense	(11.7)	(7.1)
Interest income	3.8	0.2
Other income (expense)	(1.8)	0.6
Income from continuing operations before income taxes	34.1	15.4
Income tax expense	(8.1)	(3.2)
Income from continuing operations	26.0	12.2
Income from discontinued operations, including gain on sale, net of tax	11.4	4.9
Net income	37.4	17.1
Less: net income attributable to redeemable non-controlling interests	0.0	0.3
Net income attributable to EnPro Industries, Inc.	37.4	16.8
Comprehensive income	44.5	4.4
Less: comprehensive loss attributable to redeemable non-controlling interests	0.0	(0.7)
Comprehensive income attributable to EnPro Industries, Inc.	44.5	5.1
Income attributable to EnPro Industries, Inc. common shareholders:
Income from continuing operations, net of tax	26.0	11.9
Income from discontinued operations, including gain on sale, net of tax	11.4	4.9
Net income attributable to EnPro Industries, Inc.	$ 37.4	$ 16.8
Basic earnings per share attributable to EnPro Industries, Inc.:
Continuing operations (in dollars per share)	$ 1.25	$ 0.57
Discontinued operations (in dollars per share)	0.55	0.24
Net income per share (in dollars per share)	1.80	0.81
Diluted earnings per share attributable to EnPro Industries, Inc.:
Continuing operations (in dollars per share)	1.24	0.57
Discontinued operations (in dollars per share)	0.55	0.24
Net income per share (in dollars per share)	$ 1.79	$ 0.81

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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
OPERATING ACTIVITIES OF CONTINUING OPERATIONS
Net income	$ 37.4	$ 17.1
Adjustments to reconcile net income to net cash provided by operating activities of continuing operations:
Income from discontinued operations, net of taxes	(11.4)	(4.9)
Taxes related to sale of discontinued operations	(3.5)	0.0
Depreciation	6.0	6.4
Amortization	17.6	19.6
Deferred income taxes	(0.4)	(0.7)
Stock-based compensation	2.4	1.5
Other non-cash adjustments	1.1	2.2
Change in assets and liabilities, net of effects of divestiture of businesses:
Accounts receivable, net	(11.5)	(11.6)
Inventories	(4.9)	(3.5)
Accounts payable	(4.6)	6.4
Other current assets and liabilities	(0.9)	(7.9)
Other non-current assets and liabilities	(0.9)	2.8
Net cash provided by operating activities of continuing operations	26.4	27.4
INVESTING ACTIVITIES OF CONTINUING OPERATIONS
Purchases of property, plant and equipment	(5.0)	(3.0)
Proceeds from sale of businesses, net	25.3	0.4
Purchase of short-term investments	(35.0)	0.0
Other	(0.1)	0.1
Net cash used in investing activities of continuing operations	(14.8)	(2.5)
FINANCING ACTIVITIES OF CONTINUING OPERATIONS
Proceeds from debt	0.0	4.5
Repayments of debt	(4.0)	(52.4)
Dividends paid	(6.2)	(5.9)
Other	(1.8)	(6.6)
Net cash used in financing activities of continuing operations	(12.0)	(60.4)
CASH FLOWS OF DISCONTINUED OPERATIONS
Operating cash flows	(0.6)	(0.2)
Investing cash flows	0.0	(1.0)
Net cash used by discontinued operations	(0.6)	(1.2)
Effect of exchange rate changes on cash and cash equivalents	2.7	(8.0)
Net increase (decrease) in cash and cash equivalents	1.7	(44.7)
Cash and cash equivalents at beginning of period	334.4	338.1
Cash and cash equivalents at end of period	336.1	293.4
Cash paid (received) during the period for:
Interest, net	7.0	0.1
Income taxes, net	(0.1)	1.7
Non-cash investing and financing activities:
Non-cash acquisitions of property, plant, and equipment	$ 0.1	$ 0.1

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CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 336.1	$ 334.4
Short-term investments	35.0	0.0
Accounts receivable, net	149.4	137.1
Inventories	157.1	151.9
Prepaid expenses and other current assets	37.7	44.9
Current assets of discontinued operation	0.0	15.9
Total current assets	715.3	684.2
Property, plant and equipment, net	184.7	185.2
Goodwill	866.1	863.8
Intangible assets	783.8	799.8
Other assets	121.6	114.8
Total assets	2,671.5	2,647.8
Current liabilities
Current maturities of long-term debt	15.6	15.6
Accounts payable	68.9	73.4
Accrued expenses	115.4	120.2
Current liabilities of discontinued operation	0.0	2.3
Total current liabilities	199.9	211.5
Long-term debt	771.2	775.1
Deferred taxes and non-current income taxes payable	136.3	136.5
Other liabilities	111.1	111.7
Total liabilities	1,218.5	1,234.8
Commitments and contingencies
Redeemable non-controlling interests	17.9	17.9
Shareholders’ equity
Common stock – $.01 par value; 100,000,000 shares authorized; issued, 21,055,668 shares in 2023 and 20,996,739 shares in 2022	0.2	0.2
Additional paid-in capital	300.8	299.2
Retained earnings	1,161.5	1,130.2
Accumulated other comprehensive loss	(26.2)	(33.3)
Common stock held in treasury, at cost – 177,868 shares in 2023 and 179,345 shares in 2022	(1.2)	(1.2)
Total shareholders’ equity	1,435.1	1,395.1
Total liabilities and equity	$ 2,671.5	$ 2,647.8

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CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) - $ / shares	Mar. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	21,055,668	20,996,739
Treasury stock, common, shares (in shares)	177,868	179,345

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Overview and Basis of Presentation

3 Months Ended

Mar. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Overview and Basis of Presentation

Overview and Basis of Presentation

Overview

EnPro Industries, Inc. (“we,” “us,” “our,” “EnPro,” or the “Company”) is a leading-edge industrial technology company focused on critical applications across a diverse group of growing end markets such as semiconductor, photonics, industrial process, aerospace, food, biopharma and life sciences. EnPro is a leader in applied engineering and designs, develops, manufactures, and markets proprietary, value-added products and solutions that safeguard a variety of critical environments.

Over the past several years, we have executed several strategic initiatives to create a portfolio of businesses that offer proprietary, industrial technology-related products and solutions with high barriers to entry, compelling margins, strong cash flow, and perpetual recurring/aftermarket revenue in markets with favorable secular tailwinds.

Basis of Presentation

The accompanying interim consolidated financial statements are unaudited, and certain related information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been omitted in accordance with Rule 10-01 of Regulation S-X. They were prepared following the same policies and procedures used in the preparation of our annual financial statements. The accompanying interim consolidated financial statements reflect all adjustments (consisting of normal recurring adjustments) necessary for a fair statement of results for the periods presented. The Consolidated Balance Sheet as of December 31, 2022 was derived from the audited financial statements included in our annual report on Form 10-K for the year ended December 31, 2022. The results of operations for the interim periods are not necessarily indicative of the results for the fiscal year. These consolidated financial statements should be read in conjunction with our annual consolidated financial statements for the year ended December 31, 2022 included within our annual report on Form 10-K.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amount of assets and liabilities and the disclosures regarding contingent assets and liabilities at period end and the reported amounts of revenue and expenses during the reporting period.

All intercompany accounts and transactions between our consolidated operations have been eliminated.

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Discontinued Operations

3 Months Ended

Mar. 31, 2023

Discontinued Operations and Disposal Groups [Abstract]

Discontinued Operations

Discontinued Operations

On January 30, 2023 we completed the sale of Garlock Pipeline Technologies, Inc. ("GPT") for gross proceeds of $31.4 million. We recorded a pre-tax gain on the sale of discontinued operations of $14.6 million in the first quarter of 2023.

The sale of GPT, along with our GGB business that was divested on November 4, 2022 comprised our remaining Engineered Materials segment ("Engineered Materials"). We determined Engineered Materials to be a discontinued operation. Accordingly, we have reported, for all periods presented, the financial condition, results of operations, and cash flows of Engineered Materials as discontinued operations in the accompanying financial statements.

For the three months ended March 31, 2023 and 2022, the results of operations from the discontinued Engineered Materials segment were as follows:

(in millions)	2023		2022
Net sales	$	2.0	$	58.7
Cost of sales	1.3		37.9
Gross profit	0.7		20.8
Operating expenses:
Selling, general and administrative	0.4		14.0
Other	—		0.1
Total operating expenses	0.4		14.1
Income from discontinued operation before income tax	0.3		6.7
Income tax expense	(0.1)		(1.8)
Income from discontinued operations, net of tax	0.2		4.9
Gain from sale of discontinued operation, net of tax	11.2		—
Income from discontinued operations, including gain on sale, net of tax	$	11.4	$	4.9

The major classes of assets and liabilities for the discontinued Engineered Materials segment are shown below:

(in millions)	December 31, 2022
Assets:
Accounts receivable	$	3.8
Inventories	3.1
Property, plant and equipment	7.6
Intangible assets	1.2
Other assets	0.2
Current assets of discontinued operation	$	15.9
Liabilities
Accounts payable	$	1.4
Accrued expenses	0.9
Current liabilities of discontinued operation	$	2.3

Pursuant to applicable accounting guidance for the reporting of discontinued operations, allocations to Engineered Materials for corporate services not expected to continue at the divested business subsequent to closing have not been reflected in the above financial statements of discontinued operations and have been reclassified to income from continuing operations in the accompanying consolidated financial statements of the Company for all periods. In addition, divestiture-related costs previously not allocated to Engineered Materials that were incurred as a result of the divestiture of Engineered Materials have been reflected in the financial results of discontinued operations. As a result, income before income taxes of Engineered Materials has been decreased by $0.4 million for the three months ended March 31, 2022, with offsetting changes in corporate expenses of continuing operations.

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Income Taxes

3 Months Ended

Mar. 31, 2023

Income Tax Disclosure [Abstract]

Income Taxes

Income TaxesOur income tax expense and resulting effective tax rate on income from continuing operations are based upon the estimated annual effective tax rates applicable for the respective periods adjusted for the effect of items required to be treated as discrete in the interim periods. This estimated annual effective tax rate is affected by the relative proportions of revenue and income before taxes in the jurisdictions in which we operate. Based on the geographical mix of earnings, our annual effective tax rate fluctuates based on the portion of our profits earned in each jurisdiction. Additionally, in accordance with discontinued operations reporting requirements, income tax expense for the current and prior periods presented have been adjusted to reflect

only the activity of continuing operations. This presentation requires removing all elements of income tax expense associated with discontinued operations entities as well as their indirect impact on the overall income tax provision.

The effective tax rates for the three months ended March 31, 2023 and 2022 were 23.7% and 20.7%, respectively. The effective tax rate for the three months ended March 31, 2023 is primarily driven by higher tax rates in most foreign jurisdictions partially offset by the release of a valuation allowance on certain foreign net operating losses and a tax benefit related to share-based payment awards. The effective tax rate for the three months ended March 31, 2022 is primarily the result of a tax benefit related to share-based payment awards partially offset by higher tax rates in most foreign jurisdictions.

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Earnings Per Share

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

	Three Months Ended March 31,
	2023		2022
	(in millions, except per share amounts)
Numerator (basic and diluted):
Income from continuing operations	$	26.0	$	12.2
Less: net income attributable to redeemable non-controlling interests	—		0.3
Income from continuing operations attributable to EnPro Industries, Inc.	26.0		11.9
Income from discontinued operations, net of tax	11.4		4.9
Net income attributable to EnPro Industries, Inc.	$	37.4	$	16.8
Denominator:
Weighted-average shares – basic	20.8		20.8
Share-based awards	0.1		0.1
Weighted-average shares – diluted	20.9		20.9
Basic earnings per share attributable to EnPro Industries, Inc.:
Continuing operations	$	1.25	$	0.57
Discontinued operations	0.55		0.24
Basic earnings per share attributable to EnPro Industries, Inc.	$	1.80	$	0.81
Diluted earnings per share attributable to EnPro Industries, Inc.:
Continuing operations	$	1.24	$	0.57
Discontinued operations	0.55		0.24
Diluted earnings per share attributable to EnPro Industries, Inc.	$	1.79	$	0.81

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Inventories

3 Months Ended

Mar. 31, 2023

Inventory Disclosure [Abstract]

Inventories

Inventories

	March 31, 2023		December 31, 2022
	(in millions)
Finished products	$	52.3	$	51.5
Work in process	34.8		32.7
Raw materials and supplies	70.0		67.7
Total inventories	$	157.1	$	151.9

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Goodwill and Other Intangible Assets

3 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

Goodwill and Other Intangible Assets

The changes in the net carrying value of goodwill by reportable segment for the three months ended March 31, 2023, are as follows:

	Sealing Technologies		Advanced Surface Technologies		Total
	(in millions)
Goodwill as of December 31, 2022	$	270.8	$	593.0	$	863.8
Foreign currency translation	2.3		—		2.3
Goodwill as of March 31, 2023	$	273.1	$	593.0	$	866.1

The goodwill balances reflected above are net of accumulated impairment losses of $27.8 million for the Sealing Technologies segment and $65.2 million for the Advanced Surface Technologies segment.

Identifiable intangible assets are as follows:

	March 31, 2023				December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
	(in millions)
Amortized:
Customer relationships	$	484.8	$	163.9	$	484.5	$	157.6
Existing technology	464.3		80.0		463.7		71.3
Trademarks	64.9		25.5		64.8		24.0
Other	36.4		28.0		36.4		27.3
	1,050.4		297.4		1,049.4		280.2
Indefinite-Lived:
Trademarks	30.8		—		30.6		—
Total	$	1,081.2	$	297.4	$	1,080.0	$	280.2

Amortization for the three months ended March 31, 2023 and 2022 were $17.4 million, and $19.5 million, respectively.

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Accrued Expenses

3 Months Ended

Mar. 31, 2023

Payables and Accruals [Abstract]

Accrued Expenses

Accrued Expenses

	March 31, 2023		December 31, 2022
	(in millions)
Salaries, wages and employee benefits	$	40.7	$	51.6
Interest	9.3		4.4
Environmental	10.4		10.4
Income taxes	13.8		10.7
Taxes other than income taxes	5.2		4.6
Operating lease liabilities	9.9		9.2
Other	26.1		29.3
	$	115.4	$	120.2

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Long-Term Debt

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Long-Term Debt

Long-Term Debt

Senior Secured Credit Facilities

On December 17, 2021, we entered into a Third Amended and Restated Credit Agreement (the “Amended Credit Agreement”) among the Company and EnPro Holdings, as borrowers, certain foreign subsidiaries of the Company from time to time party thereto, as designated borrowers, the guarantors party thereto, the lenders party thereto and Bank of America, N.A.,

as Administrative Agent, Swing Line Lender and L/C Issuer. The Amended Credit Agreement amends, restates and replaces the Second Amended and Restated Credit Agreement dated as of June 28, 2018, as amended, among the Company and EnPro Holdings as borrowers, the guarantors party thereto, the lenders party thereto and Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer.

The Amended Credit Agreement provides for credit facilities in the initial aggregate principal amount of $1,007.5 million, consisting of a five-year, senior secured revolving credit facility of $400.0 million (the “Revolving Credit Facility”), a $142.5 million senior secured term loan facility in replacement of our existing senior secured term loan facility, maturing September 25, 2024 (the “Term Loan A-1 Facility”), a five-year, senior secured term loan facility of $315.0 million (the “Term Loan A-2 Facility”) and a 364-day, senior secured term loan facility of $150.0 million (the “364-Day Facility” and together with the Revolving Credit Facility, the Term Loan A-1 Facility and the Term Loan A-2 Facility, the “Facilities”). The Amended Credit Agreement also provides that we may seek incremental term loans and/or additional revolving credit commitments in an amount equal to the greater of $275.0 million and 100% of consolidated EBITDA for the most recently ended four-quarter period for which we have reported financial results, plus additional amounts based on a consolidated senior secured leverage ratio. The Amended Credit Agreement became effective on December 17, 2021.

Borrowings under the 364-Day Facility bore interest at an annual rate of LIBOR plus 1.50% or base rate plus 0.50%. Initially, borrowings under the Facilities (other than the 364-Day Facility) bore interest at an annual rate of LIBOR plus 1.75% or base rate plus 0.75%, although these interest rates were subject to incremental increase or decrease based on a consolidated total net leverage ratio. On November 8, 2022, we entered into a First Amendment to the Amended Credit Agreement, which replaced the LIBOR-based interest rate option with an option based on Term SOFR ("Secured Overnight Financing Rate") plus (i) a credit spread adjustment of 0.10% and (ii) 1.75%, again subject to incremental increase or decrease based on a consolidated total net leverage ratio. In addition, a commitment fee accrues with respect to the unused amount of the Revolving Credit Facility at an annual rate of 0.225%, which rate is also subject to incremental increase or decrease based on a consolidated total net leverage ratio.

The Term Loan A-1 Facility amortizes on a quarterly basis in an annual amount equal to 2.50% of the original principal amount of the Term Loan A-1 Facility ($150.0 million) in year one after the closing, 5.00% of such original principal amount in year two and 1.25% of such original principal amount in each of the first three quarters of year three, with the remaining outstanding principal amount payable at maturity. The Term Loan A-2 Facility amortizes on a quarterly basis in an annual amount equal to 2.5% of the original principal amount of the Term Loan A-2 Facility in each of years one through three, 5.0% of such original principal amount in year four and 1.25% of such original principal amount in each of the first three quarters of year five, with the remaining outstanding principal amount payable at maturity. The 364-Day Facility did not amortize and was repaid in full in the third quarter of 2022. The Facilities are subject to prepayment with the net cash proceeds of certain asset sales, casualty or condemnation events and non-permitted debt issuances.

The Company and EnPro Holdings are the permitted borrowers under the Facilities. The Company may also from time to time designate any of its wholly owned foreign subsidiaries as a borrower under the Revolving Credit Facility. Each of the Company’s domestic subsidiaries (other than any subsidiaries that may be designated as “unrestricted” by the Company from time to time, and inactive subsidiaries) is required to guarantee the obligations of the borrowers under the Facilities, and each of the Company’s existing domestic subsidiaries (other than inactive subsidiaries) has entered into the Amended Credit Agreement to provide such a guarantee.

Borrowings under the Facilities are secured by a first-priority pledge of certain assets. The Amended Credit Agreement contains certain financial covenants and required financial ratios including a maximum consolidated total net leverage and a minimum consolidated interest coverage as defined in the Amended Credit Agreement. We were in compliance with all covenants of the Amended Credit Agreement as of March 31, 2023.

The borrowing availability under our Revolving Credit Facility at March 31, 2023 was $389.2 million after giving consideration to $10.8 million of outstanding letters of credit. The balance of our outstanding Term Loan A-1 Facility and Term Loan A-2 Facility at March 31, 2023 was $134.9 million and $305.3 million respectively.

Senior Notes

On October 17, 2018, we completed the offering of $350.0 million aggregate principal amount of 5.75% Senior Notes due 2026 (the "Senior Notes") and applied the net proceeds of that offering, together with borrowings under the Revolving Credit Facility, to redeem on October 31, 2018 the full $450.0 million aggregate principal amount of the outstanding 5.875% Senior Notes due 2022 (the "Old Notes").

The Senior Notes were issued to investors at 100% of the principal amount thereof. The Senior Notes are unsecured, unsubordinated obligations of EnPro and mature on October 15, 2026. Interest on the Senior Notes accrues at a rate of 5.75% per annum and is payable semi-annually in cash in arrears on April 15 and October 15 of each year. The Senior Notes are required to be guaranteed on a senior unsecured basis by each of EnPro’s existing and future direct and indirect domestic subsidiaries that is a borrower under, or guarantees, our indebtedness under the Revolving Credit Facility or guarantees any other Capital Markets Indebtedness (as defined in the indenture governing the Senior Notes) of EnPro or any of the guarantors. We may, on any one or more occasions, redeem all or a part of the Senior Notes at specified redemption prices plus accrued and unpaid interest.

The indenture governing the Senior Notes includes covenants that restrict our ability to engage in certain activities, including incurring additional indebtedness, paying dividends and repurchasing shares of our common stock, subject in each case to specified exceptions and qualifications set forth in the indenture. The indenture further requires us to apply the net cash proceeds of certain asset sales not reinvested in acquisitions, or used to repay or otherwise reduce specified indebtedness within a specified period, in the event of the net proceeds exceeding a specified amount, to offer to repurchase the Senior Notes at a price equal to 100.0% of the principal amount thereof plus accrued and unpaid interest. This requirement applies to the net cash proceeds received in the divestitures of GGB and GPT and could require us to make such an offer to repurchase the Senior Notes in the first quarter of 2024 to the extent we do not sufficiently invest in acquisitions, assets, property or capital expenditures or repay or otherwise reduce specified indebtedness by then.

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Pension

3 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

Pension

Pension

The components of net periodic benefit cost for our U.S. and foreign defined benefit pension plans for the three months ended March 31, 2023 and 2022, are as follows:

	2023		2022
	(in millions)
Service cost	$	0.1	$	0.4
Interest cost	3.3		2.4
Expected return on plan assets	(3.4)		(3.3)
Amortization of net loss	0.4		0.1
Net periodic benefit cost (benefit)	$	0.4	$	(0.4)

No contributions were made during the three months ended March 31, 2023 to our U.S. defined benefit pension plans and we do not anticipate making any contributions in 2023.

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Shareholders' Equity

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Shareholders' Equity

Shareholders' Equity

Changes in shareholders' equity for the three months ended March 31, 2023 are as follows:

	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Income		Treasury Stock		Total Shareholders' Equity		Redeemable Non-controlling Interests
(in millions, except per share data)	Shares	Amount
Balance, December 31, 2022	20.8	$	0.2	$	299.2	$	1,130.2	$	(33.3)	$	(1.2)	$	1,395.1	$	17.9
Net income	—	—		—		37.4		—		—		37.4		—
Other comprehensive loss	—	—		—		—		7.1		—		7.1		—
Dividends ($0.29 per share)	—	—		—		(6.1)		—		—		(6.1)		—
Incentive plan activity	0.1	—		1.6		—		—		—		1.6		—
Balance, March 31, 2023	20.9	$	0.2	$	300.8	$	1,161.5	$	(26.2)	$	(1.2)	$	1,435.1	$	17.9

Changes in shareholders' equity for the three months ended March 31, 2022 are as follows:

	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Treasury Stock		Total Shareholders' Equity		Redeemable Non-controlling Interests
(in millions, except per share data)	Shares	Amount
Balance, December 31, 2021	20.7	$	0.2	$	303.6	$	953.1	$	14.6	$	(1.2)	$	1,270.3	$	50.1
Net income	—	—		—		16.8		—		—		16.8		0.3
Other comprehensive loss	—	—		—		—		(11.7)		—		(11.7)		(1.0)
Dividends ($0.28 per share)	—	—		—		(5.9)		—		—		(5.9)		—
Incentive plan activity	0.1	—		(4.1)		—		—		—		(4.1)		—
Other	—	—		0.1		—		—		—		0.1		(0.1)
Balance, March 31, 2022	20.8	$	0.2	$	299.6	$	964.0	$	2.9	$	(1.2)	$	1,265.5	$	49.3

We intend to declare regular quarterly cash dividends on our common stock, as determined by our board of directors, after taking into account our current and projected cash flows, earnings, financial position, debt covenants and other relevant factors. In accordance with the board of directors' declaration, total dividend payments of $6.2 million were made during the three months ended March 31, 2023.

In April 2023, our board of directors declared a dividend of $0.29 per share, payable on June 14, 2023, to all shareholders of record as of May 31, 2023.

In October 2022, our board of directors authorized the expenditure of up to $50.0 million for the repurchase of our outstanding common shares through October 2024. We have not made any repurchases under this authorization or the prior two-year authorization which expired in October 2022.

In 2023, we changed our performance share awards, granted under our equity compensation plan to executives and other key employees, to be paid in shares of our common stock at the end of the three-year vesting period. Awards issued prior to 2023 will be payable in cash at the end of the vesting period based upon the performance of Enpro’s share price relative to an industry peer group. Compensation expense related to performance shares granted in 2023 is computed using the fair value of the awards on the grant date, which is expensed on a straight-line basis over the three-year vesting period. Compensation expense for awards granted prior to 2023 is computed based upon the current estimate of total projected cash to be paid at vesting.

In February 2023, we issued stock options to certain key executives for 0.1 million common shares with an exercise price of $116.69 per share. The options vest pro-rata on the first, second and third anniversaries of the grant date, subject to continued employment. No options have a term greater than 10 years.

We determine the fair value of stock options using the Black-Scholes option pricing formula as of the grant date. Key inputs into this formula include expected term, expected volatility, expected dividend yield, and the risk-free interest rate. This fair value is amortized on a straight line basis over the vesting period.

The expected term represents the period that our stock options are expected to be outstanding, and is determined based on historical experience of similar awards, given the contractual terms of the awards, vesting schedules, and expectations of future employee behavior. The fair value of stock options reflects a volatility factor calculated using historical market data for EnPro's common stock. The time frame used was approximated as a six-year period from the grant date for the awards. The dividend assumption is based on our expectations as of the grant date. We base the risk-free interest rate on the yield to maturity at the time of the stock option grant on zero-coupon U.S. government bonds having a remaining life equal to the option's expected life.

The option awards issued in February 2023 had a fair value of $45.13 per share at their grant date. The following assumptions were used to estimate the fair value of the 2023 option awards:

Average expected term	6 years
Expected volatility	39.75	%
Risk-free interest rate	4.22	%
Expected dividend yield	1.05	%

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Business Segment Information

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Business Segment Information

Business Segment Information

We aggregate our operating businesses into two reportable segments. The factors considered in determining our reportable segments are the economic similarity of the businesses, the nature of products sold, or solutions provided, the production processes and the types of customers and distribution methods. Our reportable segments are managed separately based on these differences.

Our Sealing Technologies segment designs and manufactures value-added products and solutions that safeguard a variety of critical environments, including: metallic, non-metallic and composite material gaskets, dynamic seals, compression packing, resilient metal seals, elastomeric seals, custom-engineered mechanical seals for applications in the aerospace industry and other markets, hydraulic components, expansion joints, sanitary gaskets, hoses and fittings for the hygienic process industries, fluid transfer products for the pharmaceutical and biopharmaceutical industries, and heavy-duty commercial vehicle parts used in wheel-end and suspension components that customers rely upon to ensure safety on our roadways. These products are used in a variety of markets, including chemical and petrochemical processing, nuclear energy, food and biopharmaceutical processing, primary metal manufacturing, mining, water and waste treatment, heavy-duty trucking, aerospace, medical, filtration and semiconductor fabrication. In all of these industries, performance and durability of our proprietary products and solutions are vital for the safety and environmental protection of our customers processes. Many of our products and solutions are used in highly demanding applications in harsh environments, e.g., where extreme temperatures, extreme pressures, corrosive environments, strict tolerances, and/or worn equipment create challenges for product performance. Sealing Technologies offers customers widely recognized applied engineering, innovation, process know how and enduring reliability, driving aftermarket demand for many of our solutions.

Our Advanced Surface Technologies (AST) segment applies proprietary technologies, processes, and capabilities to deliver a highly differentiated suite of products and solutions for the most challenging applications in high growth markets. The segment’s products and solutions are used in highly demanding environments requiring performance, precision and repeatability, with a low tolerance for failure. The segment’s solutions include cleaning, coating, testing, refurbishment and verification for critical components and assemblies used in state-of-the-art advanced node semiconductor manufacturing equipment. AST designs, manufactures and sells specialized optical filters and proprietary thin-film coatings for the most challenging applications in the industrial technology, life sciences, and semiconductor markets and complex front-end wafer processing sub-systems, new and refurbished electrostatic chuck pedestals, and edge-welded metal bellows for the semiconductor equipment industry and for critical applications in the space, aerospace and defense markets. In many instances, AST capabilities drive solutions that enable the maintenance of our customers’ processes through an entire life cycle.

We measure operating performance based on segment earnings before interest, income taxes, depreciation, amortization, and other selected items ("Adjusted Segment EBITDA"), which is segment revenue reduced by operating expenses and other costs identifiable with the segment, excluding acquisition and divestiture expenses, restructuring costs, impairment charges, non-controlling interest compensation, amortization of the fair value adjustment to acquisition date inventory, and depreciation and amortization. Adjusted Segment EBITDA is not defined under GAAP and may not be comparable to similarly-titled measures used by other companies. Corporate expenses include general corporate administrative costs. Expenses not directly attributable to the segments, corporate expenses, net interest expense, gains and losses related to the sale of assets, and income taxes are not included in the computation of Adjusted Segment EBITDA. The accounting policies of the reportable segments are the same as those for EnPro.

Non-controlling interest compensation allocation represents compensation expense associated with the rollover equity subject to put and call options from the acquisitions of LeanTeq and Alluxa subject to reduction for certain types of employment terminations of the respective sellers. This expense is recorded in selling, general, and administrative expenses on our Consolidated Statements of Operations and is directly related to the terms of the acquisition. This expense is recognized as compensation expense over the term of the respective put and call options unless certain employment terminations occur. The

LeanTeq non-controlling interests were acquired by Enpro in December 2022 and, accordingly, the non-controlling interest compensation for the three months ended March 31, 2023 is attributable solely to the Alluxa rollover equity.

Segment operating results and other financial data for the three months ended March 31, 2023 and 2022 were as follows:

	Three Months Ended March 31,
	2023		2022
	(in millions)
Sales
Sealing Technologies	$	173.3	$	153.6
Advanced Surface Technologies	109.4		116.7
	282.7		270.3
Intersegment sales	(0.1)		(0.2)
Total sales	$	282.6	$	270.1
Adjusted Segment EBITDA
Sealing Technologies	$	49.7	$	34.3
Advanced Surface Technologies	29.5		34.9
	$	79.2	$	69.2
Reconciliation of Adjusted Segment EBITDA to income before income taxes
Income from continuing operations before income taxes	$	34.1	$	15.4
Acquisition and divestiture expenses	—		0.2
Non-controlling interest compensation allocation	0.4		(0.9)
Amortization of fair value adjustment to acquisition date inventory	—		10.3
Restructuring and impairment expense	0.4		0.3
Depreciation and amortization expense	23.5		25.9
Corporate expenses	10.7		12.9
Interest expense, net	7.9		6.9
Other income (expense), net	2.2		(1.8)
Adjusted Segment EBITDA	$	79.2	$	69.2

Segment assets are as follows:

	March 31, 2023		December 31, 2022
	(in millions)
Sealing Technologies	$	708.5	$	689.6
Advanced Surface Technologies	1,514.1		1,519.6
Corporate	448.9		422.7
Discontinued operations	—		15.9
	$	2,671.5	$	2,647.8

 

Backlog

As of March 31, 2023, the aggregate amount of transaction price of remaining performance obligations, or backlog, on a consolidated basis was $294.0 million. Approximately 95% of these obligations are expected to be satisfied within one year. There is no certainty these orders will result in actual sales at the times or in the amounts ordered. In addition, for most of our business, this total is not particularly predictive of future performance because of our short lead times and some seasonality.

Revenue by End Market

Due to the diversified nature of our business and the wide array of products that we offer, we sell into a number of end markets. Underlying economic conditions within these markets are a major driver of our segments' sales performance. Below is a summary of our third-party sales by major end market with which we did business for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31, 2023
(in millions)	Sealing Technologies		Advanced Surface Technologies		Total
Aerospace	$	12.5	$	1.6	$	14.1
Chemical and material processing	21.6		—		21.6
Food and pharmaceutical	18.7		—		18.7
General industrial	43.9		8.8		52.7
Commercial vehicle	52.4		—		52.4
Oil and gas	5.9		1.6		7.5
Power generation	16.1		—		16.1
Semiconductors	2.2		97.3		99.5
Total third-party sales	$	173.3	$	109.3	$	282.6

	Three Months Ended March 31, 2022
(in millions)	Sealing Technologies		Advanced Surface Technologies		Total
Aerospace	$	8.1	$	2.0	$	10.1
Chemical and material processing	20.3		—		20.3
Food and pharmaceutical	17.6		—		17.6
General industrial	42.9		7.8		50.7
Commercial vehicle	44.8		—		44.8
Oil and gas	5.1		0.6		5.7
Power generation	13.2		0.1		13.3
Semiconductors	1.6		106.0		107.6
Total third-party sales	$	153.6	$	116.5	$	270.1

In 2023, we refined the end market classification of certain sales in the Sealing Technologies segment for the quarter ended March 31, 2022. This refinement resulted in a reduction in sales reported for the quarter ended March 31, 2022 in the general industrial and other and food and pharmaceutical markets by approximately $1.7 million and $1.4 million, respectively. There was an offsetting increase in the power generation and semiconductor markets of $2.8 million and $0.3 million, respectively.

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Derivatives and Hedging

3 Months Ended

Mar. 31, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging

Derivatives and Hedging

We are exposed to foreign currency risks that arise from normal business operations. These risks include the translation of local currency balances on our foreign subsidiaries’ balance sheets, intercompany loans with foreign subsidiaries and transactions denominated in foreign currencies. We strive to control our exposure to these risks through our normal operating activities and, where appropriate, through derivative instruments. We periodically enter into contracts to hedge forecasted transactions that are denominated in foreign currencies. As part of out regular practice, we have entered into a forward contract to hedge a 95 million Euro exposure on an intercompany note agreement related to proceeds from the GGB sale allocated to foreign subsidiaries. We expect this intercompany note to be settled during 2023. The notional amount of foreign exchange contracts was $104.8 million and $103.3 million March 31, 2023 and December 31, 2022 respectively. All foreign exchange contracts outstanding at December 31, 2022 expired in January 2023.

The notional amounts of all of our foreign exchange contracts were recorded at their fair market value as of December 31, 2022 with changes in market value recorded in income. The earnings impact of any foreign exchange contract that is

specifically related to the purchase of inventory is recorded in cost of sales and the changes in market value of all other contracts are recorded in selling, general and administrative expense in the Consolidated Statements of Operations. The balances of foreign exchange derivative assets are recorded in other current assets and the balances of foreign exchange derivative liabilities are recorded in accrued expenses in the Consolidated Balance Sheets.

In May 2019, we entered into a cross-currency swap agreements (the "Swap") with a notional amount of $100.0 million to manage an increased portion of our foreign currency risk by effectively converting a portion of the interest payments related to our fixed-rate USD-denominated Senior Notes, including the semi-annual interest payments thereunder, to interest payments on fixed-rate Euro-denominated debt of 89.6 million EUR with a weighted average interest rate of 3.5%, with interest payment dates of April 15 and October 15 of each year. The Additional Swap agreement matures on October 15, 2026.

During the term of the Swap agreement, we will receive semi-annual payments from the counterparties due to the difference between the interest rate on the Senior Notes and the interest rate on the Euro debt underlying the Swap. There was no principal exchange at the inception of the arrangement, and there will be no exchange at maturity. At maturity (or earlier at our option), we and the counterparty will settle the Swap agreement at its fair value in cash based on the aggregate notional amount and the then-applicable currency exchange rate compared to the exchange rate at the time the Swap agreement was entered into.

We have designated the Swap as a qualifying hedging instruments and are accounting for it as a net investment hedge. At March 31, 2023, the fair value of the Swap equaled $7.9 million and was recorded within our other (non-current) assets on the Consolidated Balance Sheet.The gains and losses resulting from fair value adjustment to the Swap agreement, excluding interest accruals related to the above receipts, are recorded in accumulated other comprehensive income within our cumulative foreign currency translation adjustment, as the Swap is effective in hedging the designated risk. Cash flows related to the Swap are included in operating activities in the Consolidated Statements of Cash Flows, aside from the ultimate settlement at maturity with the counterparty, which will be included in investing activities.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Fair Value Measurements

Fair Value Measurements

Assets and liabilities measured at fair value on a recurring basis are summarized as follows:

	Fair Value Measurements as of
	March 31, 2023		December 31, 2022
	(in millions)
Assets
Short-term investments	35.0		—
Foreign currency derivatives	7.9		8.5
Deferred compensation assets	10.1		9.8
	$	53.0	$	18.3
Liabilities
Deferred compensation liabilities	$	10.5	$	10.3

Our deferred compensation assets and liabilities are classified within Level 1 of the fair value hierarchy because they are valued using quoted market prices. Our foreign currency derivatives and short-term investments are classified as Level 2 since their value is calculated based upon observable inputs including market USD/Euro exchange rates and market interest rates. Our short-term investments represent certificates of deposits acquired in the first quarter of 2023 with a maturity date in July 2023.

The carrying values of our significant financial instruments reflected in the Consolidated Balance Sheets approximated their respective fair values except for the following instruments:

	March 31, 2023				December 31, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in millions)
Long-term debt	$	786.8	$	782.7	$	790.7	$	788.8

The fair values for long-term debt are based on quoted market prices for identical liabilities, but these are considered Level 2 computations because the market is not active.

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Accumulated Other Comprehensive Income (Loss)

3 Months Ended

Mar. 31, 2023

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Accumulated Other Comprehensive Income (Loss)

Accumulated Other Comprehensive Income (Loss)

Changes in accumulated other comprehensive income (loss) by component (after tax) for the three months ended March 31, 2023 are as follows:

(in millions)	Unrealized Translation Adjustments		Pension and Other Postretirement Plans		Total
Beginning balance	$	11.8	$	(45.1)	$	(33.3)
Other comprehensive income before reclassifications	6.8				6.8
Amounts reclassified from accumulated other comprehensive loss	—		0.3		0.3
Net current-period other comprehensive income attributable to EnPro Industries, Inc.	6.8		0.3		7.1
Ending balance	$	18.6	$	(44.8)	$	(26.2)

Changes in accumulated other comprehensive income (loss) by component (after tax) for the three months ended March 31, 2022 are as follows:

(in millions)	Unrealized Translation Adjustments		Pension and Other Postretirement Plans		Total
Beginning balance	$	46.7	$	(32.1)	$	14.6
Other comprehensive loss before reclassifications	(12.8)		—		(12.8)
Amounts reclassified from accumulated other comprehensive income	—		0.1		0.1
Net current-period other comprehensive loss	(12.8)		0.1		(12.7)
Less: other comprehensive income attributable to redeemable non-controlling interests	(1.0)		—		(1.0)
Net current-period other comprehensive income attributable to EnPro Industries, Inc.	(11.8)		0.1		(11.7)
Ending balance	$	34.9	$	(32.0)	$	2.9

Reclassifications out of accumulated other comprehensive income (loss) for the three months ended March 31, 2023 and 2022 are as follows:

Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)				Affected Statement of Operations Caption
	Three Months Ended   March 31,
(in millions)	2023		2022
Pension and other postretirement plans adjustments:
Actuarial losses	$	0.4	$	0.1	Other income (expense)
Total before tax	0.4		0.1		Income before income taxes
Tax benefit	(0.1)		—		Income tax expense
Net of tax	$	0.3	$	0.1	Net income

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

General

A description of certain environmental and other legal matters relating to certain of our subsidiaries is included in this section. In addition to the matters noted herein, we are from time to time subject to, and are presently involved in, other litigation and legal proceedings arising in the ordinary course of business. We believe the outcome of such other litigation and

legal proceedings will not have a material adverse effect on our financial condition, results of operations and cash flows. Expenses for administrative and legal proceedings are recorded when incurred.

Environmental

Our facilities and operations are subject to federal, state and local environmental and occupational health and safety laws and regulations of the U.S. and foreign countries. We take a proactive approach in our efforts to comply with these laws and regulations as they relate to our manufacturing operations and in proposing and implementing any remedial plans that may be necessary. We also regularly conduct comprehensive environmental, health and safety audits at our facilities to maintain compliance and improve operational efficiency.

Although we believe past operations were in substantial compliance with the then applicable regulations, we or one or more of our subsidiaries are involved with various remediation activities or an investigation to determine responsibility for environmental conditions at 19 sites. At 9 of these sites, the future cost per site for us or our subsidiary is expected to exceed $100,000. Of these 19 sites, 18 are sites where we or one or more of our subsidiaries formerly conducted business operations but no longer do, and 1 is a site where we conduct manufacturing operations. Investigations have been completed for 16 sites. At 7 of these sites, remediation systems are operating while at the other 9 sites, our only obligation is to conduct periodic monitoring. Investigations are in progress at 3 sites.

Our policy is to accrue environmental investigation and remediation costs when it is probable that a liability has been incurred and the amount can be reasonably estimated. For sites with multiple future projected cost scenarios for identified feasible investigation and remediation options where no one estimate is more likely than all the others, our policy is to accrue the lowest estimate among the range of estimates. The measurement of the liability is based on an evaluation of currently available facts with respect to each individual situation and takes into consideration factors such as existing technology, presently enacted laws and regulations and prior experience in the remediation of similar contaminated sites. Liabilities are established for all sites based on these factors. As assessments and remediation progress at individual sites, these liabilities are reviewed and adjusted to reflect additional technical data and legal information. As of March 31, 2023 and December 31, 2022, we had recorded liabilities aggregating $41.2 million and $42.1 million, respectively, for estimated future expenditures relating to environmental contingencies. The current portion of our aggregate environmental liability included in accrued liabilities was $10.4 million at March 31, 2023. These amounts have been recorded on an undiscounted basis in the Consolidated Balance Sheets. Given the uncertainties regarding the status of laws, regulations, enforcement policies, the impact of other parties potentially being fully or partially liable, technology and information related to individual sites, we do not believe it is possible to develop an estimate of the range of reasonably possible environmental loss in excess of our recorded liabilities.

We believe that our accruals for specific environmental liabilities are adequate based on currently available information. Based upon limited information regarding any incremental remediation or other actions that may be required at these sites, we cannot estimate any further loss or a reasonably possible range of loss related to these matters. Actual costs to be incurred in future periods may vary from estimates because of the inherent uncertainties in evaluating environmental exposures due to unknown and changing conditions, changing government regulations and legal standards regarding liability.

Lower Passaic River Study Area

Based on our prior ownership of Crucible Steel Corporation a/k/a Crucible, Inc. (“Crucible”), we may have additional contingent liabilities in one or more significant environmental matters. One such matter, which is included in the 19 sites referred to above, is the Lower Passaic River Study Area of the Diamond Alkali Superfund Site in New Jersey. Crucible operated a steel mill abutting the Passaic River in Harrison, New Jersey from the 1930s until 1974, which was one of many industrial operations on the river dating back to the 1800s. Certain contingent environmental liabilities related to this site were retained by a predecessor of EnPro Holdings when it sold a majority interest in Crucible Materials Corporation (the successor of Crucible) in 1985. The United States Environmental Protection Agency (the “EPA”) notified our subsidiary in September 2003 that it is a potentially responsible party (“PRP”) for Superfund response actions in the lower 17-mile stretch of the Passaic River known as the Lower Passaic River Study Area.

EnPro Holdings and approximately 70 of the numerous other PRPs, known as the Cooperating Parties Group, are parties to a May 2007 Administrative Order on Consent with the EPA to perform a Remedial Investigation/Feasibility Study (“RI/FS”) of the contaminants in the Lower Passaic River Study Area. In September 2018, EnPro Holdings withdrew from the Cooperating Parties Group but remains a party to the May 2007 Administrative Order on Consent. The RI/FS was completed and submitted to the EPA at the end of April 2015. The RI/FS recommends a targeted dredge and cap remedy with monitored natural recovery and adaptive management for the Lower Passaic River Study Area. The cost of such remedy is estimated to be $726 million. Previously, on April 11, 2014, the EPA released its Focused Feasibility Study (the “FFS”) with its proposed plan for remediating the lower eight miles of the Lower Passaic River Study Area. The FFS calls for bank-to-bank dredging and capping of the riverbed of that portion of the river and estimates a range of the present value of aggregate remediation costs of

approximately $953 million to approximately $1.73 billion, although estimates of the costs and the timing of costs are inherently imprecise. On March 3, 2016, the EPA issued the final Record of Decision (ROD) as to the remedy for the lower eight miles of the Lower Passaic River Study Area, with the maximum estimated cost being reduced by the EPA from $1.73 billion to $1.38 billion, primarily due to a reduction in the amount of cubic yards of material that will be dredged. In October 2016, Occidental Chemical Corporation, the successor to the entity that operated the Diamond Alkali chemical manufacturing facility, reached an agreement with the EPA to develop the design for this proposed remedy at an estimated cost of $165 million. The EPA has estimated that it will take approximately four years to develop this design. On June 30, 2018, Occidental Chemical Corporation sued over 120 parties, including the Company, in the United States District Court for New Jersey seeking recovery of response costs under the Comprehensive Environmental Response, Compensation and Liability Act ("CERCLA").

No final allocations of responsibility have been made among the numerous PRPs that have received notices from the EPA, there are numerous identified PRPs that have not yet received PRP notices from the EPA, and there are likely many PRPs that have not yet been identified.

On April 14, 2021, the EPA issued its proposed remedy for the upper nine miles of the river, with an estimated present value cost of approximately $441 million. The proposed remedy would involve dredging and capping of the river sediment as an interim remedy followed by a period of monitoring to evaluate the response of the river system to the interim remedy.

When the EPA initiated the allocation process in 2017, it explained that a fair, carefully structured, information-based allocation was necessary to promote settlements. With the completion of the allocation process, in the second quarter of 2021 the EPA began settlement negotiations with the parties that participated in the allocation process, including EnPro. In September 2022, EnPro paid $5.9 million as part of a settlement between those parties and EPA. The payment will be held in escrow until court approval of the settlement. Our reserve for this site at March 31, 2023 was $0.7 million. Further adjustments to our reserve for this site are possible as new or additional information becomes available.

Except with respect to the Lower Passaic River Study Area, we are unable to estimate a reasonably possible range of loss related to any other contingent environmental liability based on our prior ownership of Crucible. See the section entitled “Crucible Steel Corporation a/k/a Crucible, Inc.” in this footnote for additional information.

Arizona Uranium Mines

EnPro Holdings has received notices from the EPA asserting that it is a potentially responsible party under the CERCLA as the successor to a former operator of eight uranium mines in Arizona. The former operator conducted operations at the mines from 1954 to 1957. In the 1990s, remediation work performed by others at these sites consisted of capping the exposed areas of the mines. We have previously reserved amounts of probable loss associated with these mines, principally including the cost of the investigative work to be conducted at such mines. We entered into an Administrative Settlement Agreement and Order on Consent for Interim Removal Action with the EPA effective November 7, 2017 for the performance of this work. We entered into a First Modification of Original Administrative Settlement Agreement and Order on Consent effective July 8, 2022 for the performance of Engineering Evaluations and Cost Analyses of potential remedial options at each of the sites. In 2020, EPA initiated group discussions with EnPro Holdings and other potentially responsible parties to resolve various technical issues, including the development of cleanup standards. Based on these discussions and subsequent discussions with other responsible parties with similar sites, we have concluded that further remedial work beyond maintenance of and minor repairs to the existing caps is probable, and we have evaluated the feasibility of various remediation scenarios. Our reserve at March 31, 2023 for this site was $12.4 million, which reflects the low end of the range of our reasonably likely liability with respect to these sites. We are not able at this time to estimate the upper end of a range of liability with respect to these sites.

On October 18, 2021, the United States District Court for the District of Arizona approved and entered a Consent Decree pursuant to which the U.S government will reimburse the Company for 35% of necessary costs of response, as defined in 42 U.S.C. section 9601(25), previously or to be in the future incurred by the Company which arise out of or in connection with releases or threatened releases of hazardous substances at or emanating from the mine sites. We expect future contributions of $3.3 million from the U.S. government towards remediation of the site. This amount was included in other assets in the accompanying consolidated balance sheet at March 31, 2023.

In addition to the two sites discussed above, we have additional reserves of $28.1 million, of which $14.3 million pertains to implementing and managing a solution to clean trichloroethylene soil and groundwater contamination at the location of a former operation in Water Valley, Mississippi. These amounts represent a reasonable estimate of our probable future costs to remediate these sites given the facts and circumstances known at March 31, 2023.

Crucible Steel Corporation a/k/a Crucible, Inc.

Crucible, which was engaged primarily in the manufacture and distribution of high technology specialty metal products, was a wholly owned subsidiary of EnPro Holdings until 1983 when its assets and liabilities were distributed to a new

subsidiary, Crucible Materials Corporation. EnPro Holdings sold a majority of the outstanding shares of Crucible Materials Corporation in 1985 and divested its remaining minority interest in 2004. Crucible Materials Corporation filed for Chapter 11 bankruptcy protection in May 2009 and is no longer conducting operations.

We have certain ongoing obligations, which are included in other liabilities in our Consolidated Balance Sheets, including workers’ compensation, retiree medical and other retiree benefit matters, in addition to those mentioned previously related to EnPro Holdings' period of ownership of Crucible. Based on EnPro Holdings' prior ownership of Crucible, we may have certain additional contingent liabilities, including liabilities in one or more significant environmental matters included in the matters discussed in “Environmental” above. We are investigating these matters. Except with respect to those matters for which we have an accrued liability as discussed in "Environmental" above, we are unable to estimate a reasonably possible range of loss related to these contingent liabilities.

Warranties

We provide warranties on many of our products. The specific terms and conditions of these warranties vary depending on the product and the market in which the product is sold. We record a liability based upon estimates of the costs we may incur under our warranties after a review of historical warranty experience and information about specific warranty claims. Adjustments are made to the liability as claims data, historical experience, and trends result in changes to our estimate.

Changes in the product warranty liability for the three months ended March 31, 2023 and 2022 are as follows:

	2023		2022
	(in millions)
Balance at beginning of year	$	5.2	$	4.9
Net charges to expense	0.3		0.4
Settlements made	(0.3)		(0.7)
Balance at end of period	$	5.2	$	4.6

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Overview and Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying interim consolidated financial statements are unaudited, and certain related information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been omitted in accordance with Rule 10-01 of Regulation S-X. They were prepared following the same policies and procedures used in the preparation of our annual financial statements. The accompanying interim consolidated financial statements reflect all adjustments (consisting of normal recurring adjustments) necessary for a fair statement of results for the periods presented. The Consolidated Balance Sheet as of December 31, 2022 was derived from the audited financial statements included in our annual report on Form 10-K for the year ended December 31, 2022. The results of operations for the interim periods are not necessarily indicative of the results for the fiscal year. These consolidated financial statements should be read in conjunction with our annual consolidated financial statements for the year ended December 31, 2022 included within our annual report on Form 10-K.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amount of assets and liabilities and the disclosures regarding contingent assets and liabilities at period end and the reported amounts of revenue and expenses during the reporting period.

All intercompany accounts and transactions between our consolidated operations have been eliminated.

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Discontinued Operations (Tables)

3 Months Ended

Mar. 31, 2023

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Discontinued Operations

For the three months ended March 31, 2023 and 2022, the results of operations from the discontinued Engineered Materials segment were as follows:

(in millions)	2023		2022
Net sales	$	2.0	$	58.7
Cost of sales	1.3		37.9
Gross profit	0.7		20.8
Operating expenses:
Selling, general and administrative	0.4		14.0
Other	—		0.1
Total operating expenses	0.4		14.1
Income from discontinued operation before income tax	0.3		6.7
Income tax expense	(0.1)		(1.8)
Income from discontinued operations, net of tax	0.2		4.9
Gain from sale of discontinued operation, net of tax	11.2		—
Income from discontinued operations, including gain on sale, net of tax	$	11.4	$	4.9

The major classes of assets and liabilities for the discontinued Engineered Materials segment are shown below:

(in millions)	December 31, 2022
Assets:
Accounts receivable	$	3.8
Inventories	3.1
Property, plant and equipment	7.6
Intangible assets	1.2
Other assets	0.2
Current assets of discontinued operation	$	15.9
Liabilities
Accounts payable	$	1.4
Accrued expenses	0.9
Current liabilities of discontinued operation	$	2.3

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Share

	Three Months Ended March 31,
	2023		2022
	(in millions, except per share amounts)
Numerator (basic and diluted):
Income from continuing operations	$	26.0	$	12.2
Less: net income attributable to redeemable non-controlling interests	—		0.3
Income from continuing operations attributable to EnPro Industries, Inc.	26.0		11.9
Income from discontinued operations, net of tax	11.4		4.9
Net income attributable to EnPro Industries, Inc.	$	37.4	$	16.8
Denominator:
Weighted-average shares – basic	20.8		20.8
Share-based awards	0.1		0.1
Weighted-average shares – diluted	20.9		20.9
Basic earnings per share attributable to EnPro Industries, Inc.:
Continuing operations	$	1.25	$	0.57
Discontinued operations	0.55		0.24
Basic earnings per share attributable to EnPro Industries, Inc.	$	1.80	$	0.81
Diluted earnings per share attributable to EnPro Industries, Inc.:
Continuing operations	$	1.24	$	0.57
Discontinued operations	0.55		0.24
Diluted earnings per share attributable to EnPro Industries, Inc.	$	1.79	$	0.81

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Inventories (Tables)

3 Months Ended

Mar. 31, 2023

Inventory Disclosure [Abstract]

Schedule of Inventories

	March 31, 2023		December 31, 2022
	(in millions)
Finished products	$	52.3	$	51.5
Work in process	34.8		32.7
Raw materials and supplies	70.0		67.7
Total inventories	$	157.1	$	151.9

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Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in Net Carrying Value of Goodwill by Reportable Segment

The changes in the net carrying value of goodwill by reportable segment for the three months ended March 31, 2023, are as follows:

	Sealing Technologies		Advanced Surface Technologies		Total
	(in millions)
Goodwill as of December 31, 2022	$	270.8	$	593.0	$	863.8
Foreign currency translation	2.3		—		2.3
Goodwill as of March 31, 2023	$	273.1	$	593.0	$	866.1

Schedule of Finite-Lived Intangible Assets

Identifiable intangible assets are as follows:

	March 31, 2023				December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
	(in millions)
Amortized:
Customer relationships	$	484.8	$	163.9	$	484.5	$	157.6
Existing technology	464.3		80.0		463.7		71.3
Trademarks	64.9		25.5		64.8		24.0
Other	36.4		28.0		36.4		27.3
	1,050.4		297.4		1,049.4		280.2
Indefinite-Lived:
Trademarks	30.8		—		30.6		—
Total	$	1,081.2	$	297.4	$	1,080.0	$	280.2

Schedule of Indefinite-Lived Intangible Assets

Identifiable intangible assets are as follows:

	March 31, 2023				December 31, 2022
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
	(in millions)
Amortized:
Customer relationships	$	484.8	$	163.9	$	484.5	$	157.6
Existing technology	464.3		80.0		463.7		71.3
Trademarks	64.9		25.5		64.8		24.0
Other	36.4		28.0		36.4		27.3
	1,050.4		297.4		1,049.4		280.2
Indefinite-Lived:
Trademarks	30.8		—		30.6		—
Total	$	1,081.2	$	297.4	$	1,080.0	$	280.2

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Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2023

Payables and Accruals [Abstract]

Schedule of Accrued Expenses

	March 31, 2023		December 31, 2022
	(in millions)
Salaries, wages and employee benefits	$	40.7	$	51.6
Interest	9.3		4.4
Environmental	10.4		10.4
Income taxes	13.8		10.7
Taxes other than income taxes	5.2		4.6
Operating lease liabilities	9.9		9.2
Other	26.1		29.3
	$	115.4	$	120.2

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Pension (Tables)

3 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

Schedule of Net Periodic Benefit Cost

The components of net periodic benefit cost for our U.S. and foreign defined benefit pension plans for the three months ended March 31, 2023 and 2022, are as follows:

	2023		2022
	(in millions)
Service cost	$	0.1	$	0.4
Interest cost	3.3		2.4
Expected return on plan assets	(3.4)		(3.3)
Amortization of net loss	0.4		0.1
Net periodic benefit cost (benefit)	$	0.4	$	(0.4)

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Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Schedule of Stockholders Equity

Changes in shareholders' equity for the three months ended March 31, 2023 are as follows:

	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Income		Treasury Stock		Total Shareholders' Equity		Redeemable Non-controlling Interests
(in millions, except per share data)	Shares	Amount
Balance, December 31, 2022	20.8	$	0.2	$	299.2	$	1,130.2	$	(33.3)	$	(1.2)	$	1,395.1	$	17.9
Net income	—	—		—		37.4		—		—		37.4		—
Other comprehensive loss	—	—		—		—		7.1		—		7.1		—
Dividends ($0.29 per share)	—	—		—		(6.1)		—		—		(6.1)		—
Incentive plan activity	0.1	—		1.6		—		—		—		1.6		—
Balance, March 31, 2023	20.9	$	0.2	$	300.8	$	1,161.5	$	(26.2)	$	(1.2)	$	1,435.1	$	17.9

Changes in shareholders' equity for the three months ended March 31, 2022 are as follows:

	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Treasury Stock		Total Shareholders' Equity		Redeemable Non-controlling Interests
(in millions, except per share data)	Shares	Amount
Balance, December 31, 2021	20.7	$	0.2	$	303.6	$	953.1	$	14.6	$	(1.2)	$	1,270.3	$	50.1
Net income	—	—		—		16.8		—		—		16.8		0.3
Other comprehensive loss	—	—		—		—		(11.7)		—		(11.7)		(1.0)
Dividends ($0.28 per share)	—	—		—		(5.9)		—		—		(5.9)		—
Incentive plan activity	0.1	—		(4.1)		—		—		—		(4.1)		—
Other	—	—		0.1		—		—		—		0.1		(0.1)
Balance, March 31, 2022	20.8	$	0.2	$	299.6	$	964.0	$	2.9	$	(1.2)	$	1,265.5	$	49.3

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The following assumptions were used to estimate the fair value of the 2023 option awards:

Average expected term	6 years
Expected volatility	39.75	%
Risk-free interest rate	4.22	%
Expected dividend yield	1.05	%

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Business Segment Information (Tables)

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Schedule of Segment Operating Results and Other Financial Data

Segment operating results and other financial data for the three months ended March 31, 2023 and 2022 were as follows:

	Three Months Ended March 31,
	2023		2022
	(in millions)
Sales
Sealing Technologies	$	173.3	$	153.6
Advanced Surface Technologies	109.4		116.7
	282.7		270.3
Intersegment sales	(0.1)		(0.2)
Total sales	$	282.6	$	270.1
Adjusted Segment EBITDA
Sealing Technologies	$	49.7	$	34.3
Advanced Surface Technologies	29.5		34.9
	$	79.2	$	69.2
Reconciliation of Adjusted Segment EBITDA to income before income taxes
Income from continuing operations before income taxes	$	34.1	$	15.4
Acquisition and divestiture expenses	—		0.2
Non-controlling interest compensation allocation	0.4		(0.9)
Amortization of fair value adjustment to acquisition date inventory	—		10.3
Restructuring and impairment expense	0.4		0.3
Depreciation and amortization expense	23.5		25.9
Corporate expenses	10.7		12.9
Interest expense, net	7.9		6.9
Other income (expense), net	2.2		(1.8)
Adjusted Segment EBITDA	$	79.2	$	69.2

Schedule of Total Assets Segment

Segment assets are as follows:

	March 31, 2023		December 31, 2022
	(in millions)
Sealing Technologies	$	708.5	$	689.6
Advanced Surface Technologies	1,514.1		1,519.6
Corporate	448.9		422.7
Discontinued operations	—		15.9
	$	2,671.5	$	2,647.8

Schedule of Disaggregation of Revenue

Below is a summary of our third-party sales by major end market with which we did business for the three months ended March 31, 2023 and 2022:

	Three Months Ended March 31, 2023
(in millions)	Sealing Technologies		Advanced Surface Technologies		Total
Aerospace	$	12.5	$	1.6	$	14.1
Chemical and material processing	21.6		—		21.6
Food and pharmaceutical	18.7		—		18.7
General industrial	43.9		8.8		52.7
Commercial vehicle	52.4		—		52.4
Oil and gas	5.9		1.6		7.5
Power generation	16.1		—		16.1
Semiconductors	2.2		97.3		99.5
Total third-party sales	$	173.3	$	109.3	$	282.6

	Three Months Ended March 31, 2022
(in millions)	Sealing Technologies		Advanced Surface Technologies		Total
Aerospace	$	8.1	$	2.0	$	10.1
Chemical and material processing	20.3		—		20.3
Food and pharmaceutical	17.6		—		17.6
General industrial	42.9		7.8		50.7
Commercial vehicle	44.8		—		44.8
Oil and gas	5.1		0.6		5.7
Power generation	13.2		0.1		13.3
Semiconductors	1.6		106.0		107.6
Total third-party sales	$	153.6	$	116.5	$	270.1

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis are summarized as follows:

	Fair Value Measurements as of
	March 31, 2023		December 31, 2022
	(in millions)
Assets
Short-term investments	35.0		—
Foreign currency derivatives	7.9		8.5
Deferred compensation assets	10.1		9.8
	$	53.0	$	18.3
Liabilities
Deferred compensation liabilities	$	10.5	$	10.3

Schedule of Carrying Value of Financial Instruments

The carrying values of our significant financial instruments reflected in the Consolidated Balance Sheets approximated their respective fair values except for the following instruments:

	March 31, 2023				December 31, 2022
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in millions)
Long-term debt	$	786.8	$	782.7	$	790.7	$	788.8

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Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2023

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Changes in Accumulated Other Comprehensive Income (loss) by Component

Changes in accumulated other comprehensive income (loss) by component (after tax) for the three months ended March 31, 2023 are as follows:

(in millions)	Unrealized Translation Adjustments		Pension and Other Postretirement Plans		Total
Beginning balance	$	11.8	$	(45.1)	$	(33.3)
Other comprehensive income before reclassifications	6.8				6.8
Amounts reclassified from accumulated other comprehensive loss	—		0.3		0.3
Net current-period other comprehensive income attributable to EnPro Industries, Inc.	6.8		0.3		7.1
Ending balance	$	18.6	$	(44.8)	$	(26.2)

Changes in accumulated other comprehensive income (loss) by component (after tax) for the three months ended March 31, 2022 are as follows:

(in millions)	Unrealized Translation Adjustments		Pension and Other Postretirement Plans		Total
Beginning balance	$	46.7	$	(32.1)	$	14.6
Other comprehensive loss before reclassifications	(12.8)		—		(12.8)
Amounts reclassified from accumulated other comprehensive income	—		0.1		0.1
Net current-period other comprehensive loss	(12.8)		0.1		(12.7)
Less: other comprehensive income attributable to redeemable non-controlling interests	(1.0)		—		(1.0)
Net current-period other comprehensive income attributable to EnPro Industries, Inc.	(11.8)		0.1		(11.7)
Ending balance	$	34.9	$	(32.0)	$	2.9

Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (loss)

Reclassifications out of accumulated other comprehensive income (loss) for the three months ended March 31, 2023 and 2022 are as follows:

Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)				Affected Statement of Operations Caption
	Three Months Ended   March 31,
(in millions)	2023		2022
Pension and other postretirement plans adjustments:
Actuarial losses	$	0.4	$	0.1	Other income (expense)
Total before tax	0.4		0.1		Income before income taxes
Tax benefit	(0.1)		—		Income tax expense
Net of tax	$	0.3	$	0.1	Net income

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Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2023

Commitments and Contingencies Disclosure [Abstract]

Schedule of Changes in Carrying Amount of Product Warranty Liability

Changes in the product warranty liability for the three months ended March 31, 2023 and 2022 are as follows:

	2023		2022
	(in millions)
Balance at beginning of year	$	5.2	$	4.9
Net charges to expense	0.3		0.4
Settlements made	(0.3)		(0.7)
Balance at end of period	$	5.2	$	4.6

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Discontinued Operations - Additional Information (Details) - Discontinued operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Jan. 30, 2023
GPT
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Proceeds from sale of investment projects			$ 31.4
Gain (loss) on sales of business	$ 14.6
Engineered Materials Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Income tax expense	$ (0.1)	$ (1.8)
Engineered Materials Segment | Adjustment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Income tax expense		$ 0.4

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Discontinued Operations- Results of Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating expenses:
Income from discontinued operations, including gain on sale, net of tax	$ 11.4	$ 4.9
Discontinued operations | Engineered Materials Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Net sales	2.0	58.7
Cost of sales	1.3	37.9
Gross profit	0.7	20.8
Operating expenses:
Selling, general and administrative	0.4	14.0
Other	0.0	0.1
Total operating expenses	0.4	14.1
Income from discontinued operation before income tax	0.3	6.7
Income tax expense	(0.1)	(1.8)
Income from discontinued operations, net of tax	0.2	4.9
Gain from sale of discontinued operation, net of tax	11.2	0.0
Income from discontinued operations, including gain on sale, net of tax	$ 11.4	$ 4.9

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Discontinued Operations - Classes of Assets and Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Assets:
Current assets of discontinued operation	$ 0.0	$ 15.9
Liabilities
Current liabilities of discontinued operation	$ 0.0	2.3
Discontinued operations | Engineered Materials Segment
Assets:
Accounts receivable		3.8
Inventories		3.1
Property, plant and equipment		7.6
Intangible assets		1.2
Other assets		0.2
Current assets of discontinued operation		15.9
Liabilities
Accounts payable		1.4
Accrued expenses		0.9
Current liabilities of discontinued operation		$ 2.3

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Income Taxes (Details)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Effective tax rate (as a percent)	23.70%	20.70%

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Earnings Per Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator (basic and diluted):
Income from continuing operations	$ 26.0	$ 12.2
Less: net income attributable to redeemable non-controlling interests	0.0	0.3
Income from continuing operations attributable to EnPro Industries, Inc.	26.0	11.9
Income from discontinued operations, net of tax	11.4	4.9
Net income attributable to EnPro Industries, Inc.	37.4	16.8
Net income attributable to EnPro Industries, Inc.	$ 37.4	$ 16.8
Denominator:
Weighted-average shares – basic (in shares)	20.8	20.8
Share-based awards (in shares)	0.1	0.1
Weighted-average shares – diluted (in shares)	20.9	20.9
Basic earnings per share attributable to EnPro Industries, Inc.:
Continuing operations (in dollars per share)	$ 1.25	$ 0.57
Discontinued operations (in dollars per share)	0.55	0.24
Net income per share (in dollars per share)	1.80	0.81
Diluted earnings per share attributable to EnPro Industries, Inc.:
Continuing operations (in dollars per share)	1.24	0.57
Discontinued operations (in dollars per share)	0.55	0.24
Net income per share (in dollars per share)	$ 1.79	$ 0.81

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Inventories - Schedule of Inventories (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Finished products	$ 52.3	$ 51.5
Work in process	34.8	32.7
Raw materials and supplies	70.0	67.7
Total inventories	$ 157.1	$ 151.9

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Goodwill and Other Intangible Assets - Schedule of Changes in Net Carrying Value of Goodwill by Reportable Segment (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Goodwill
Goodwill, beginning balance	$ 863.8
Foreign currency translation	2.3
Goodwill, ending balance	866.1
Sealing Technologies
Goodwill
Goodwill, beginning balance	270.8
Foreign currency translation	2.3
Goodwill, ending balance	273.1
Advanced Surface Technologies
Goodwill
Goodwill, beginning balance	593.0
Foreign currency translation	0.0
Goodwill, ending balance	$ 593.0

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Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information
Amortization expense	$ 17.4	$ 19.5
Sealing Technologies
Segment Reporting Information
Accumulated impairment losses	27.8
Advanced Surface Technologies
Segment Reporting Information
Accumulated impairment losses	$ 65.2

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Goodwill and Other Intangible Assets - Schedule of Identifiable Intangible Assets (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets
Gross Carrying Amount	$ 1,050.4	$ 1,049.4
Accumulated Amortization	297.4	280.2
Total	1,081.2	1,080.0
Trademarks
Indefinite-lived Intangible Assets
Indefinite-Lived:	30.8	30.6
Customer relationships
Finite-Lived Intangible Assets
Gross Carrying Amount	484.8	484.5
Accumulated Amortization	163.9	157.6
Existing technology
Finite-Lived Intangible Assets
Gross Carrying Amount	464.3	463.7
Accumulated Amortization	80.0	71.3
Trademarks
Finite-Lived Intangible Assets
Gross Carrying Amount	64.9	64.8
Accumulated Amortization	25.5	24.0
Other
Finite-Lived Intangible Assets
Gross Carrying Amount	36.4	36.4
Accumulated Amortization	$ 28.0	$ 27.3

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Accrued Expenses - Schedule of Accrued Expenses (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Payables and Accruals [Abstract]
Salaries, wages and employee benefits	$ 40.7	$ 51.6
Interest	9.3	4.4
Environmental	10.4	10.4
Income taxes	13.8	10.7
Taxes other than income taxes	5.2	4.6
Operating lease liabilities	9.9	9.2
Other	26.1	29.3
Accrued expenses	$ 115.4	$ 120.2

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Long-Term Debt (Details) - USD ($)				3 Months Ended
	Nov. 08, 2022	Dec. 17, 2021	Oct. 17, 2018	Mar. 31, 2023	Dec. 31, 2022	Oct. 31, 2018
Line of Credit Facility
Long-term debt				$ 786,800,000	$ 790,700,000
Term Loan | Line of Credit | LIBOR
Line of Credit Facility
Variable rate on debt (as a percent)				1.50%
Term Loan | Line of Credit | Base Rate
Line of Credit Facility
Variable rate on debt (as a percent)				0.50%
Term Loan | Line of Credit | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Line of Credit Facility
Variable rate on debt (as a percent)	0.10%
Debt instrument, interest rate (as a percent)	1.75%
364-Day Facility | Line of Credit
Line of Credit Facility
Line of credit facility, maximum borrowing capacity		$ 150,000,000
364-Day Facility | Line of Credit | LIBOR
Line of Credit Facility
Variable rate on debt (as a percent)				1.75%
364-Day Facility | Line of Credit | Base Rate
Line of Credit Facility
Variable rate on debt (as a percent)				0.75%
Line of Credit
Line of Credit Facility
Senior notes		1,007,500,000
Maximum borrowing capacity expansion threshold		$ 275,000,000
Maximum borrowing capacity expansion threshold, percent (as a percent)		100.00%
Line of Credit | Revolving Credit Facility
Line of Credit Facility
Credit facility maximum availability (in years)		5 years
Line of credit facility, maximum borrowing capacity		$ 400,000,000
Credit facility borrowing capacity				$ 389,200,000
Letter of credit outstanding				10,800,000
Line of Credit | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Line of Credit Facility
Line of credit facility, unused capacity, commitment fee (as a percent)	0.225%
Line of Credit | Term Loan A-1
Line of Credit Facility
Senior notes				$ 150,000,000
Line of credit facility, maximum borrowing capacity		$ 142,500,000
Debt instrument, periodic payment, years one to three, percentage of principal (as a percent)				2.50%
Debt instrument, periodic payment, years two, percentage of principal (as a percent)				5.00%
Debt instrument, periodic payment, years three, percentage of principal (as a percent)				1.25%
Long-term debt				$ 134,900,000
Line of Credit | Term Loan A-2
Line of Credit Facility
Credit facility maximum availability (in years)		5 years
Line of credit facility, maximum borrowing capacity		$ 315,000,000
Debt instrument, periodic payment, years one to three, percentage of principal (as a percent)				2.50%
Debt instrument, periodic payment, years two, percentage of principal (as a percent)				5.00%
Debt instrument, periodic payment, years three, percentage of principal (as a percent)				1.25%
Long-term debt				$ 305,300,000
Senior Notes
Line of Credit Facility
Senior notes			$ 350,000,000
Interest rate (as a percent)			5.75%			5.875%
Aggregate principal amount redeemed						$ 450,000,000
Senior Notes | Before October 15, 2021
Line of Credit Facility
Redemption price (as a percent)			100.00%

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Pension - Schedule of Net Periodic Benefit Cost (Details) - Pension Benefits - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Defined Benefit Plan Disclosure
Service cost	$ 0.1	$ 0.4
Interest cost	3.3	2.4
Expected return on plan assets	(3.4)	(3.3)
Amortization of net loss	0.4	0.1
Net periodic benefit cost (benefit)	$ 0.4	$ (0.4)

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Pension - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2023 USD ($)
U.S.
Defined Benefit Plan Disclosure
Contributions by employer	$ 0

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Shareholders' Equity - Changes in Shareholders' Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Increase (Decrease) in Stockholders' Equity
Beginning balance	$ 1,395.1	$ 1,270.3
Net income attributable to EnPro Industries, Inc.	37.4	16.8
Other comprehensive loss	7.1	(11.7)
Dividends	(6.1)	(5.9)
Incentive plan activity	1.6	(4.1)
Other		0.1
Ending balance	1,435.1	1,265.5
Redeemable Non-controlling Interests
Beginning balance	17.9	50.1
Net income	0.0	0.3
Other comprehensive loss	0.0	(1.0)
Other		(0.1)
Ending Balance	$ 17.9	$ 49.3
Cash dividends per share, declared (in dollars per share)	$ 0.29	$ 0.28
Common Stock
Increase (Decrease) in Stockholders' Equity
Beginning balance	$ 0.2	$ 0.2
Balance (in shares)	20.8	20.7
Incentive plan activity (in shares)	0.1	0.1
Ending balance	$ 0.2	$ 0.2
Balance (in shares)	20.9	20.8
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity
Beginning balance	$ 299.2	$ 303.6
Incentive plan activity	1.6	(4.1)
Other		0.1
Ending balance	300.8	299.6
Retained Earnings
Increase (Decrease) in Stockholders' Equity
Beginning balance	1,130.2	953.1
Net income attributable to EnPro Industries, Inc.	37.4	16.8
Dividends	(6.1)	(5.9)
Ending balance	1,161.5	964.0
Accumulated Other Comprehensive Income (Loss)
Increase (Decrease) in Stockholders' Equity
Beginning balance	(33.3)	14.6
Other comprehensive loss	7.1	(11.7)
Ending balance	(26.2)	2.9
Treasury Stock
Increase (Decrease) in Stockholders' Equity
Beginning balance	(1.2)	(1.2)
Ending balance	$ (1.2)	$ (1.2)

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Shareholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	1 Months Ended		3 Months Ended
	Apr. 30, 2023	Feb. 28, 2023	Mar. 31, 2023	Mar. 31, 2022	Oct. 31, 2022
Subsequent Event
Dividends paid			$ 6.2	$ 5.9
Cash dividends per share, declared (in dollars per share)			$ 0.29	$ 0.28
Shares authorized for repurchase (in shares)					50.0
Shares authorized for repurchase, authorization period			2 years
Shares authorized for repurchase, vesting period			3 years
Employee Stock Options
Subsequent Event
Average expected term (in years)			6 years
Fair value (in dollars per share)		$ 45.13
Key Executives
Subsequent Event
Options issued (in shares)		0.1
Exercise price (in dollars per share)		$ 116.69
Option term (in years)		10 years
Subsequent Event
Subsequent Event
Cash dividends per share, declared (in dollars per share)	$ 0.29

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Shareholders' Equity - Schedule of Assumptions Used (Details) - Employee Stock Options	3 Months Ended
	Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award
Average expected term	6 years
Expected volatility	39.75%
Risk-free interest rate	4.22%
Expected dividend yield	1.05%

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Business Segment Information - Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($) segment	Mar. 31, 2022 USD ($)
Segment Reporting Information
Number of operating segments | segment	2
Adjusted Segment EBITDA	$ 79.2	$ 69.2
Performance obligation	294.0
Net sales	282.6	270.1
General industrial
Segment Reporting Information
Net sales	52.7	50.7
Food and pharmaceutical
Segment Reporting Information
Net sales	18.7	17.6
Power generation
Segment Reporting Information
Net sales	16.1	13.3
Semiconductors
Segment Reporting Information
Net sales	99.5	107.6
Sealing Technologies
Segment Reporting Information
Net sales	173.3	153.6
Sealing Technologies | General industrial
Segment Reporting Information
Net sales	43.9	42.9
Sealing Technologies | General industrial | Adjustment
Segment Reporting Information
Net sales		(1.7)
Sealing Technologies | Food and pharmaceutical
Segment Reporting Information
Net sales	18.7	17.6
Sealing Technologies | Food and pharmaceutical | Adjustment
Segment Reporting Information
Net sales		(1.4)
Sealing Technologies | Power generation
Segment Reporting Information
Net sales	16.1	13.2
Sealing Technologies | Power generation | Adjustment
Segment Reporting Information
Net sales		2.8
Sealing Technologies | Semiconductors
Segment Reporting Information
Net sales	$ 2.2	1.6
Sealing Technologies | Semiconductors | Adjustment
Segment Reporting Information
Net sales		$ 0.3
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Segment Reporting Information
Remaining performance obligation, percentage (as a percent)	95.00%
Remaining performance obligation, expected timing (in years)	1 year

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Business Segment Information - Schedule of Segment Operating Results and Other Financial Data (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information
Total third-party sales	$ 282.6	$ 270.1
Income from continuing operations before income taxes	34.1	15.4
Acquisition and divestiture expenses	0.0	0.2
Non-controlling interest compensation allocation	0.4	(0.9)
Amortization of fair value adjustment to acquisition date inventory	0.0	10.3
Restructuring and impairment expense	0.4	0.3
Depreciation and amortization expense	23.5	25.9
Interest expense, net	7.9	6.9
Other income (expense), net	(1.8)	0.6
Adjusted Segment EBITDA	79.2	69.2
Sealing Technologies
Segment Reporting Information
Total third-party sales	173.3	153.6
Advanced Surface Technologies
Segment Reporting Information
Total third-party sales	109.3	116.5
Operating Segments
Segment Reporting Information
Total third-party sales	282.7	270.3
Operating Segments | Sealing Technologies
Segment Reporting Information
Total third-party sales	173.3	153.6
Adjusted Segment EBITDA	49.7	34.3
Operating Segments | Advanced Surface Technologies
Segment Reporting Information
Total third-party sales	109.4	116.7
Adjusted Segment EBITDA	29.5	34.9
Intersegment sales
Segment Reporting Information
Total third-party sales	(0.1)	(0.2)
Corporate
Segment Reporting Information
Corporate expenses	10.7	12.9
Segment Reconciling Items
Segment Reporting Information
Other income (expense), net	$ 2.2	$ (1.8)

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Business Segment Information - Schedule of Assets and Long Lived Assets Segment (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Segment Reporting Information
Assets	$ 2,671.5	$ 2,647.8
Discontinued operations
Segment Reporting Information
Assets	0.0	15.9
Operating Segments | Sealing Technologies
Segment Reporting Information
Assets	708.5	689.6
Operating Segments | Advanced Surface Technologies
Segment Reporting Information
Assets	1,514.1	1,519.6
Corporate
Segment Reporting Information
Assets	$ 448.9	$ 422.7

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Business Segment Information - Revenue by End Market (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue
Total third-party sales	$ 282.6	$ 270.1
Sealing Technologies
Disaggregation of Revenue
Total third-party sales	173.3	153.6
Advanced Surface Technologies
Disaggregation of Revenue
Total third-party sales	109.3	116.5
Aerospace
Disaggregation of Revenue
Total third-party sales	14.1	10.1
Aerospace | Sealing Technologies
Disaggregation of Revenue
Total third-party sales	12.5	8.1
Aerospace | Advanced Surface Technologies
Disaggregation of Revenue
Total third-party sales	1.6	2.0
Chemical and material processing
Disaggregation of Revenue
Total third-party sales	21.6	20.3
Chemical and material processing | Sealing Technologies
Disaggregation of Revenue
Total third-party sales	21.6	20.3
Chemical and material processing | Advanced Surface Technologies
Disaggregation of Revenue
Total third-party sales	0.0	0.0
Food and pharmaceutical
Disaggregation of Revenue
Total third-party sales	18.7	17.6
Food and pharmaceutical | Sealing Technologies
Disaggregation of Revenue
Total third-party sales	18.7	17.6
Food and pharmaceutical | Sealing Technologies | Adjustment
Disaggregation of Revenue
Total third-party sales		(1.4)
Food and pharmaceutical | Advanced Surface Technologies
Disaggregation of Revenue
Total third-party sales	0.0	0.0
General industrial
Disaggregation of Revenue
Total third-party sales	52.7	50.7
General industrial | Sealing Technologies
Disaggregation of Revenue
Total third-party sales	43.9	42.9
General industrial | Sealing Technologies | Adjustment
Disaggregation of Revenue
Total third-party sales		(1.7)
General industrial | Advanced Surface Technologies
Disaggregation of Revenue
Total third-party sales	8.8	7.8
Commercial vehicle
Disaggregation of Revenue
Total third-party sales	52.4	44.8
Commercial vehicle | Sealing Technologies
Disaggregation of Revenue
Total third-party sales	52.4	44.8
Commercial vehicle | Advanced Surface Technologies
Disaggregation of Revenue
Total third-party sales	0.0	0.0
Oil and gas
Disaggregation of Revenue
Total third-party sales	7.5	5.7
Oil and gas | Sealing Technologies
Disaggregation of Revenue
Total third-party sales	5.9	5.1
Oil and gas | Advanced Surface Technologies
Disaggregation of Revenue
Total third-party sales	1.6	0.6
Power generation
Disaggregation of Revenue
Total third-party sales	16.1	13.3
Power generation | Sealing Technologies
Disaggregation of Revenue
Total third-party sales	16.1	13.2
Power generation | Sealing Technologies | Adjustment
Disaggregation of Revenue
Total third-party sales		2.8
Power generation | Advanced Surface Technologies
Disaggregation of Revenue
Total third-party sales	0.0	0.1
Semiconductors
Disaggregation of Revenue
Total third-party sales	99.5	107.6
Semiconductors | Sealing Technologies
Disaggregation of Revenue
Total third-party sales	2.2	1.6
Semiconductors | Sealing Technologies | Adjustment
Disaggregation of Revenue
Total third-party sales		0.3
Semiconductors | Advanced Surface Technologies
Disaggregation of Revenue
Total third-party sales	$ 97.3	$ 106.0

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Derivatives and Hedging (Details) € in Millions	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2022 EUR (€)	May 31, 2019 EUR (€)	May 31, 2019 USD ($)
Original Swap
Derivative
Amount of hedged item | €			€ 95.0
Foreign Exchange Forward
Derivative
Notional amount	$ 104,800,000	$ 103,300,000
Additional Swap
Derivative
Amount of hedged item | €				€ 89.6
Derivative liability, notional amount					$ 100,000,000
Weighted average interest rate (as a percent)				3.50%	3.50%
Derivative asset, noncurrent	$ 7,900,000

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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Assets
Short-term investments	$ 35.0	$ 0.0
Foreign currency derivatives	7.9	8.5
Deferred compensation assets	10.1	9.8
Assets	53.0	18.3
Liabilities
Deferred compensation liabilities	$ 10.5	$ 10.3

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Fair Value Measurements - Schedule of Carrying Value of Financial Instruments (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Carrying Value	$ 786.8	$ 790.7
Fair Value	$ 782.7	$ 788.8

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Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Accumulated Other Comprehensive Income
Beginning balance	$ 1,395.1	$ 1,270.3
Other comprehensive income (loss) before reclassifications	6.8	(12.8)
Amounts reclassified from accumulated other comprehensive income (loss)	0.3	0.1
Net current-period other comprehensive income (loss)		(12.7)
Less: other comprehensive income attributable to redeemable non-controlling interests		(1.0)
Net current-period other comprehensive income attributable to EnPro Industries, Inc.	7.1	(11.7)
Ending balance	1,435.1	1,265.5
Total
Accumulated Other Comprehensive Income
Beginning balance	(33.3)	14.6
Net current-period other comprehensive income attributable to EnPro Industries, Inc.	7.1	(11.7)
Ending balance	(26.2)	2.9
Unrealized Translation Adjustments
Accumulated Other Comprehensive Income
Beginning balance	11.8	46.7
Other comprehensive income (loss) before reclassifications	6.8	(12.8)
Amounts reclassified from accumulated other comprehensive income (loss)	0.0	0.0
Net current-period other comprehensive income (loss)		(12.8)
Less: other comprehensive income attributable to redeemable non-controlling interests		(1.0)
Net current-period other comprehensive income attributable to EnPro Industries, Inc.	6.8	(11.8)
Ending balance	18.6	34.9
Pension and Other Postretirement Plans
Accumulated Other Comprehensive Income
Beginning balance	(45.1)	(32.1)
Other comprehensive income (loss) before reclassifications		0.0
Amounts reclassified from accumulated other comprehensive income (loss)	0.3	0.1
Net current-period other comprehensive income (loss)		0.1
Less: other comprehensive income attributable to redeemable non-controlling interests		0.0
Net current-period other comprehensive income attributable to EnPro Industries, Inc.	0.3	0.1
Ending balance	$ (44.8)	$ (32.0)

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Accumulated Other Comprehensive Income (Loss) - Summary of Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Other income (expense)	$ (1.8)	$ 0.6
Tax benefit	(8.1)	(3.2)
Net income	37.4	17.1
Reclassification Out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Total before tax	0.4	0.1
Tax benefit	(0.1)	0.0
Net income	0.3	0.1
Reclassification Out of Accumulated Other Comprehensive Income | Actuarial losses
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Other income (expense)	$ 0.4	$ 0.1

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Commitments and Contingencies - Additional Information (Details)					1 Months Ended		3 Months Ended
	Apr. 14, 2021 USD ($) mi	Jun. 30, 2018 site	Mar. 03, 2016 USD ($)	Apr. 11, 2014 USD ($) mi	Sep. 30, 2022 USD ($)	Oct. 31, 2016 USD ($)	Mar. 31, 2023 USD ($) site mine party mi	Dec. 31, 2022 USD ($)	Oct. 18, 2021	Apr. 30, 2015 USD ($)
Site Contingency
Number of sites subject to remediation (sites) | site							19
Number of sites, cost in excess of 100K (sites) | site							9
Cost per site minimis threshold							$ 100,000
Number of sites, discontinued operations (sites) | site							18
Number of sites, active operations (sites) | site							1
Number of sites, investigation completed (sites) | site							16
Number of sites investigation in progress (sites) | site							3
Environmental loss accrual							$ 41,200,000	$ 42,100,000
Environmental							10,400,000	$ 10,400,000
Loss accrual							$ 28,100,000
Lower Passaic River
Site Contingency
Portion of site subject to remediation (miles) | mi				8
Number of other potentially responsible parties		120					70
Estimate of cost										$ 726,000,000
Estimate low end						$ 165,000,000
Estimated development time (in years)						4 years
Upper Nine Miles of the River
Site Contingency
Portion of site subject to remediation (miles) | mi	9
Site contingency, loss exposure in excess of accrual best estimate	$ 441,000,000
Lower Eight Miles of River
Site Contingency
Environmental loss accrual							$ 700,000
Settlement payment					$ 5,900,000
Arizona Uranium Mines
Site Contingency
Environmental loss accrual							$ 12,400,000
Investigative sites notice from EPA | mine							8
Percentage of expenses reimbursable by the U.S. (as a percent)									35.00%
Future contributions from U.S.							$ 3,300,000
Water Valley, Mississippi
Site Contingency
Loss accrual							$ 14,300,000
Minimum | Lower Passaic River
Site Contingency
Site contingency, loss exposure in excess of accrual best estimate			$ 1,380,000,000	$ 953,000,000
Maximum | Lower Passaic River
Site Contingency
Site contingency, loss exposure in excess of accrual best estimate			$ 1,730,000,000
Affiliated Entity | Crucible Steel Corporation
Site Contingency
Number of sites subject to remediation (sites) | site							19
Portion of site subject to remediation (miles) | mi							17

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Commitments and Contingencies - Schedule of Changes in Carrying Amount of Product Warranty Liability (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Movement in Standard Product Warranty Accrual
Balance at beginning of year	$ 5.2	$ 4.9
Net charges to expense	0.3	0.4
Settlements made	(0.3)	(0.7)
Balance at end of year	$ 5.2	$ 4.6