Form 10-Q - Quarterly report [Sections 13 or 15(d)]

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

For the quarterly period ended June 30, 2024

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

For the transition period from to

Commission file number 1-13879

INNOSPEC INC.

(Exact name of registrant as specified in its charter)


	DELAWARE		98-0181725
	(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

	8310 South Valley Highway Suite 350 Englewood

	Colorado		80112
	(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (303) 792 5554

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

    Title of each class

    Trading 
Symbol(s)

    Name of each exchange
on which registered

    Common stock, par value $0.01 per share

    IOSP

    NASDAQ

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 such 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 ☒ 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 (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such file. Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or 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 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 ☒

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.


	Class		Outstanding as of July 31, 2024
	Common Stock, par value $0.01		24,941,421

TABLE OF CONTENTS


PART I	FINANCIAL INFORMATION	2
Item 1	Condensed Consolidated Financial Statements	2
	Condensed Consolidated Statements of Income	2
	Condensed Consolidated Statements of Comprehensive Income	3
	Condensed Consolidated Balance Sheets	4
	Condensed Consolidated Statements of Cash Flows	5
	Condensed Consolidated Statements of Equity	6
	Notes To The Unaudited Interim Condensed Consolidated Financial Statements	8
Item 2	Management’s Discussion and Analysis of Financial Condition and Results of Operations for the Three and Six Months Ended June 30, 2024	19
	Critical Accounting Estimates	19
	Results of Operations	19
	Liquidity and Financial Condition	26
Item 3	Quantitative and Qualitative Disclosures about Market Risk	28
Item 4	Controls and Procedures	28
PART II	OTHER INFORMATION	29
Item 1	Legal Proceedings	29
Item 1A	Risk Factors	29
Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	29
Item 3	Defaults Upon Senior Securities	29
Item 4	Mine Safety Disclosures	29
Item 5	Other Information	30
Item 6	Exhibits	31
SIGNATURES		32

CAUTIONARY STATEMENT RELATIVE TO FORWARD-LOOKING STATEMENTS

This Form 10-Q contains certain “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical facts included or incorporated herein may constitute forward-looking statements. Such forward-looking statements include statements (covered by words like “expects,” “estimates,” “anticipates,” “may,” “could,” “believes,” “feels,” “plans,” “intends” or similar words or expressions, for example) which relate to earnings, growth potential, operating performance, events or developments that we expect or anticipate will or may occur in the future. Although forward-looking statements are believed by management to be reasonable when made, they are subject to certain risks, uncertainties and assumptions, and our actual performance or results may differ materially from these forward-looking statements. Additional information regarding risks, uncertainties and assumptions relating to Innospec and affecting our business operations and prospects are described in Innospec’s Annual Report on Form 10-K for the year ended December 31, 2023, and other reports filed with the U.S. Securities and Exchange Commission ("SEC"). You are urged to review our discussion of risks and uncertainties that could cause actual results to differ from forward-looking statements under the heading “Risk Factors” in such reports. Innospec undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

PART I FINANCIAL INFORMATION

Item 1 Condensed Consolidated Financial Statements

INNOSPEC INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(Unaudited)


	Three Months Ended June 30,						Six Months Ended June 30,
(in millions, except share and per share data)	2024			2023			2024			2023
Net sales	$	435.0		$	480.4		$	935.2		$	990.0
Cost of goods sold		(308.1	)		(330.0	)		(652.6	)		(691.8	)
Gross profit		126.9			150.4			282.6			298.2
Operating expenses:
Selling, general and administrative		(73.4	)		(105.6	)		(166.1	)		(201.8	)
Research and development		(12.2	)		(10.6	)		(24.0	)		(21.2	)
Adjustment to fair value of contingent consideration		(0.6	)		—			(1.4	)		—
Profit on disposal of property, plant and equipment		—			—			0.1			—
Total operating expenses		(86.2	)		(116.2	)		(191.4	)		(223.0	)
Operating income		40.7			34.2			91.2			75.2
Other income, net		0.9			2.7			3.6			6.4
Interest income/(expense), net		2.1			(0.3	)		4.2			—
Income before income tax expense		43.7			36.6			99.0			81.6
Income tax expense		(12.5	)		(7.7	)		(26.4	)		(19.5	)
Net income	$	31.2		$	28.9		$	72.6		$	62.1
Earnings per share:
Basic	$	1.25		$	1.16		$	2.91		$	2.50
Diluted	$	1.24		$	1.16		$	2.89		$	2.48
Weighted average shares outstanding (in thousands):
Basic		24,937			24,868			24,918			24,835
Diluted		25,097			24,980			25,091			25,010

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

INNOSPEC INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)


	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2024			2023			2024			2023
Net income	$	31.2		$	28.9		$	72.6			62.1
Other comprehensive income/(loss):
Changes in cumulative translation adjustment		(6.3	)		1.7			(14.0	)		6.8
Amortization of prior service cost		0.2			0.1			0.3			0.2
Amortization of actuarial net gains		—			(0.5	)		(0.1	)		(1.0	)
Other comprehensive income/(loss), before tax		(6.1	)		1.3			(13.8	)		6.0
Tax related to cumulative translation adjustment		1.0			(0.3	)		1.4			(0.7	)
Tax related to other movements		(0.1	)		0.1			(0.1	)		0.2
Income tax income/(expense) related to other comprehensive income		0.9			(0.2	)		1.3			(0.5	)
Total comprehensive income	$	26.0		$	30.0		$	60.1		$	67.6

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

INNOSPEC INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)


(in millions, except share and per share data)	June 30, 2024		December 31, 2023
Assets
Current assets:
Cash and cash equivalents	$	240.2	$	203.7
Trade and other accounts receivable (less allowances of $9.4 million and $10.3 million respectively)		300.3		359.8
Inventories (less allowances of $38.0 million and $28.1 million respectively):
Finished goods		210.9		215.7
Raw materials		102.6		84.4
Total inventories		313.5		300.1
Prepaid expenses		9.7		18.7
Prepaid income taxes		12.1		2.8
Other current assets		1.0		0.6
Total current assets		876.8		885.7
Net property, plant and equipment		271.9		268.3
Operating lease right-of-use assets		47.9		45.1
Goodwill		388.2		399.3
Other intangible assets		61.4		57.3
Deferred tax assets		10.4		10.4
Pension asset		37.0		35.1
Other non-current assets		6.7		6.2
Total assets	$	1,700.3	$	1,707.4


Liabilities and Equity
Current liabilities:
Accounts payable	$	147.7		$	163.6
Accrued liabilities		143.1			185.9
Current portion of operating lease liabilities		14.9			13.6
Current portion of plant closure provisions		4.6			4.6
Current portion of accrued income taxes		21.3			2.6
Current portion of unrecognized tax benefits		1.2			1.2
Total current liabilities		332.8			371.5
Operating lease liabilities, net of current portion		33.2			31.6
Plant closure provisions, net of current portion		56.5			57.0
Accrued income taxes, net of current portion		—			11.6
Unrecognized tax benefits		10.7			13.6
Deferred tax liabilities		35.4			33.5
Pension liabilities and post-employment benefits		12.7			13.3
Acquisition-related contingent consideration		20.2			23.4
Other non-current liabilities		2.9			2.3
Total liabilities		504.4			557.8
Equity:
Common stock, $0.01 par value, authorized 40,000,000 shares, issued 29,554,500 shares		0.3			0.3
Additional paid-in capital		364.5			361.0
Treasury stock (4,613,079 and 4,686,511 shares at cost, respectively)		(93.4	)		(94.3	)
Retained earnings		1,081.8			1,028.2
Accumulated other comprehensive loss		(160.6	)		(148.1	)
Total Innospec stockholders’ equity		1,192.6			1,147.1
Non-controlling interest		3.3			2.5
Total equity		1,195.9			1,149.6
Total liabilities and equity	$	1,700.3		$	1,707.4

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

INNOSPEC INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)


	Six Months Ended June 30,
(in millions)	2024			2023
Cash Flows from Operating Activities
Net income	$	72.6		$	62.1
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		21.5			19.2
Adjustment to fair value of contingent consideration		1.4			0.0
Deferred taxes		0.7			1.1
Profit on disposal of property, plant and equipment		(0.1	)		0.0
Non-cash movements on defined benefit pension plans		(1.6	)		(1.7	)
Stock option compensation		4.2			3.9
Changes in assets and liabilities, net of effects of acquired and divested companies:
Trade and other accounts receivable		54.5			26.4
Inventories		(17.8	)		19.0
Prepaid expenses		8.9			3.8
Accounts payable and accrued liabilities		(55.6	)		(37.7	)
Plant closure provisions		(0.1	)		(0.5	)
Income taxes		(0.1	)		(21.6	)
Unrecognized tax benefits		(2.9	)		0.6
Other assets and liabilities		(0.3	)		2.2
Net cash provided by operating activities		85.3			76.8
Cash Flows from Investing Activities
Capital expenditures		(21.6	)		(32.6	)
Internally developed software		(8.1	)		(6.7	)
Business combinations, net of cash acquired		(0.2	)		—
Proceeds on disposal of property, plant and equipment		0.2			—
Net cash used in investing activities		(29.7	)		(39.3	)
Cash Flows from Financing Activities
Non-controlling interest		0.8			0.2
Refinancing costs		(0.3	)		(1.5	)
Dividend paid		(19.0	)		(17.2	)
Issue of treasury stock		0.8			0.7
Repurchase of common stock		(0.7	)		(1.0	)
Net cash used in financing activities		(18.4	)		(18.8	)
Effect of foreign currency exchange rate changes on cash		(0.7	)		0.1
Net change in cash and cash equivalents		36.5			18.8
Cash and cash equivalents at beginning of period		203.7			147.1
Cash and cash equivalents at end of period	$	240.2		$	165.9

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

INNOSPEC INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY

(Unaudited)


(in millions)	Common Stock		Additional Paid-In Capital			Treasury Stock			Retained Earnings			Accumulated Other Comprehensive Loss			Non- Controlling Interest		Total Equity
Balance at December 31, 2023	$	0.3	$	361.0		$	(94.3	)	$	1,028.2		$	(148.1	)	$	2.5	$	1,149.6
Net income										72.6								72.6
Dividend paid ($0.76 per share)										(19.0	)							(19.0	)
Changes in cumulative translation adjustment, net of tax													(12.6	)				(12.6	)
Share of net income																0.8		0.8
Treasury stock reissued				(0.7	)		1.6											0.9
Treasury stock repurchased							(0.7	)										(0.7	)
Stock option compensation				4.2														4.2
Amortization of prior service cost, net of tax													0.2					0.2
Amortization of actuarial net gains, net of tax													(0.1	)				(0.1	)
Balance at June 30, 2024	$	0.3	$	364.5		$	(93.4	)	$	1,081.8		$	(160.6	)	$	3.3	$	1,195.9


(in millions)	Common Stock		Additional Paid-In Capital			Treasury Stock			Retained Earnings			Accumulated Other Comprehensive Loss			Non- Controlling Interest		Total Equity
Balance at December 31, 2022	$	0.3	$	354.1		$	(95.4	)	$	924.2		$	(145.2	)	$	2.4	$	1,040.4
Net income										62.1								62.1
Dividend paid ($0.69 per share)										(17.2	)							(17.2	)
Changes in cumulative translation adjustment, net of tax													6.1					6.1
Share of net income																0.2		0.2
Treasury stock reissued				(1.3	)		2.1											0.8
Treasury stock repurchased							(0.9	)										(0.9	)
Stock option compensation				3.9														3.9
Amortization of prior service cost, net of tax													0.2					0.2
Amortization of actuarial net gains, net of tax													(0.8	)				(0.8	)
Balance at June 30, 2023	$	0.3	$	356.7		$	(94.2	)	$	969.1		$	(139.7	)	$	2.6	$	1,094.8

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

INNOSPEC INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY

(Unaudited)


(in millions)	Common Stock		Additional Paid-In Capital		Treasury Stock			Retained Earnings			Accumulated Other Comprehensive Loss			Non- Controlling Interest		Total Equity
Balance at March 31, 2024	$	0.3	$	362.4	$	(93.3	)	$	1,069.6		$	(155.4	)	$	2.6	$	1,186.2
Net income									31.2								31.2
Dividend paid ($0.76 per share)									(19.0	)							(19.0	)
Changes in cumulative translation adjustment, net of tax												(5.3	)				(5.3	)
Share of net income															0.7		0.7
Treasury stock reissued				—		0.2											0.2
Treasury stock repurchased						(0.3	)										(0.3	)
Stock option compensation				2.1													2.1
Amortization of prior service cost, net of tax												0.1					0.1
Balance at June 30, 2024	$	0.3	$	364.5	$	(93.4	)	$	1,081.8		$	(160.6	)	$	3.3	$	1,195.9


(in millions)	Common Stock		Additional Paid-In Capital			Treasury Stock			Retained Earnings			Accumulated Other Comprehensive Loss			Non- Controlling Interest		Total Equity
Balance at March 31, 2023	$	0.3	$	354.8		$	(93.5	)	$	957.4		$	(140.8	)	$	2.4	$	1,080.6
Net income										28.9								28.9
Dividend paid ($0.69 per share)										(17.2	)							(17.2	)
Changes in cumulative translation adjustment, net of tax													1.4					1.4
Share of net income															0.2			0.2
Treasury stock reissued				(0.1	)		—											(0.1	)
Treasury stock repurchased							(0.7	)										(0.7	)
Stock option compensation				2.0														2.0
Amortization of prior service cost, net of tax													0.1					0.1
Amortization of actuarial net gains, net of tax													(0.4	)				(0.4	)
Balance at June 30, 2023	$	0.3	$	356.7		$	(94.2	)	$	969.1		$	(139.7	)	$	2.6	$	1,094.8

The accompanying notes are an integral part of these unaudited interim condensed consolidated financial statements.

INNOSPEC INC. AND SUBSIDIARIES

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1 – BASIS OF PRESENTATION

The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X under the Securities Exchange Act of 1934. Accordingly, they do not include all the information and notes necessary for a comprehensive presentation of financial position, results of operations and cash flows.

It is our opinion, however, that all adjustments (consisting of normal, recurring adjustments, unless otherwise disclosed) have been made which are necessary for the condensed consolidated financial statements to be fairly stated. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, filed on February 14, 2024 (the “2023 Form 10-K”).

The results for the interim period covered by this report are not necessarily indicative of the results to be expected for the full year.

When we use the terms “Innospec,” “the Corporation,” “the Company,” “Registrant,” “the Group,” “we,” “us” and “our,” we are referring to Innospec Inc. and its consolidated subsidiaries unless otherwise indicated or the context otherwise requires.

NOTE 2 – SEGMENT REPORTING

The Company reports its financial performance based on three reportable segments, which are Performance Chemicals, Fuel Specialties and Oilfield Services.

The Company evaluates the performance of its segments based on operating income. The following table analyzes sales and other financial information by the Company’s reportable segments:


	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2024			2023			2024			2023
Net Sales:
Personal Care	$	97.7		$	78.6		$	192.5		$	166.8
Home Care		24.3			19.7			50.7			43.4
Other		38.1			29.5			77.7			69.0
Performance Chemicals		160.1			127.8			320.9			279.2
Refinery and Performance		109.1			119.1			254.2			268.6
Other		57.5			35.1			89.3			75.9
Fuel Specialties		166.6			154.2			343.5			344.5
Oilfield Services		108.3			198.4			270.8			366.3
	$	435.0		$	480.4		$	935.2		$	990.0
Operating income/(loss):
Performance Chemicals	$	21.2		$	9.2		$	42.3		$	19.6
Fuel Specialties		30.4			17.1			63.8			49.5
Oilfield Services		7.3			28.0			24.2			43.9
Corporate costs		(17.6	)		(20.1	)		(37.8	)		(37.8	)
Adjustment to fair value of contingent consideration		(0.6	)		—			(1.4	)		—
Profit on disposal of property, plant and equipment		—			—			0.1			—
Total operating income	$	40.7		$	34.2		$	91.2		$	75.2

NOTE 3 – EARNINGS PER SHARE

Basic earnings per share is based on the weighted average number of common shares outstanding during the period. Diluted earnings per share includes the effect of options that are dilutive and outstanding during the period under the treasury stock method. Per share amounts are computed as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Numerator (in millions):
Net income available to common stockholders	$	31.2	$	28.9	$	72.6	$	62.1
Denominator (in thousands):
Weighted average common shares outstanding		24,937		24,868		24,918		24,835
Dilutive effect of stock options and awards		160		112		173		175
Denominator for diluted earnings per share		25,097		24,980		25,091		25,010
Net income per share, basic:	$	1.25	$	1.16	$	2.91	$	2.50
Net income per share, diluted:	$	1.24	$	1.16	$	2.89	$	2.48

In the three and six months ended June 30, 2024, the average number of anti-dilutive options excluded from the calculation of diluted earnings per share were 10,436 and 10,483, respectively (three and six months ended June 30, 2023 – 31,048 and 36,178, respectively).

NOTE 4 – GOODWILL

The following table summarizes the goodwill movements in the year:


(in millions)	Gross Cost
Opening balance at January 1, 2024	$	399.3
Adjustments		(3.4	)
Exchange effect		(7.7	)
Closing balance at June 30, 2024	$	388.2

In relation to the acquisition of QGP Química Geral S.A. (“QGP”) in December 2023, the fair value of the acquired net asset value reported at the end of the previous quarter has been revised. As a result of remeasurement period adjustments, there has been an increase of $3.4 million in the fair value of the net assets acquired, with a corresponding decrease to the acquired goodwill.

The measurement periods for the valuation of assets acquired and liabilities assumed ends as soon as information on the facts and circumstances that existed as of the acquisition dates becomes available but does not exceed twelve months. We have now completed our alignment of the accounting policies and fair value adjustments and are not expecting further changes at this time.

The exchange effect for the six months ended June 30, 2024 was $7.7 million relating to our Performance Chemicals segment.

NOTE 5 – OTHER INTANGIBLE ASSETS

The following table analyzes other intangible assets movements in the year:


(in millions)	2024
Gross cost at January 1	$	315.1
Additions		11.5
Exchange effect		(2.6	)
Gross cost at June 30		324.0
Accumulated amortization at January 1		(257.8	)
Amortization expense		(6.0	)
Exchange effect		1.2
Accumulated amortization at June 30		(262.6	)
Net book amount at June 30	$	61.4

The amortization expense for the six months ended June 30, 2024 was $6.0 million (six months ended June 30, 2023 – $5.3 million).

In relation to the acquisition of QGP in December 2023, management have finalized the valuation of customer lists which has increased the intangible asset capitalized by $3.5 million in the second quarter of 2024. Management have also revised the expected useful life of the customer lists from 10 years to 7 years.

In 2024, we have capitalized $8.0 million in relation to our internally developed software for a new Enterprise Resource Planning (“ERP”) system covering our EMEA and ASPAC regions. The expenses capitalized include the acquisition costs for the software as well as the external and internal costs of the development.

NOTE 6 – PENSION AND POST EMPLOYMENT BENEFITS

The Company maintains a defined benefit pension plan covering certain current and former employees in the United Kingdom (the “UK Plan”). The UK Plan is closed to future service accrual and has a large number of deferred and current pensioners. The assets of the UK Plan are predominantly insurance policies, operating as investment assets, covering all liabilities. This reduces the UK Plan’s potential reliance on the Company for future cash funding requirements.

The Company also maintains an unfunded defined benefit pension plan covering certain current and former employees in Germany (the “German plan”). The German plan is closed to new entrants and has no assets.

The net periodic benefit of these plans is shown in the following table:


	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2024			2023			2024			2023
Service cost	$	(0.9	)	$	(0.9	)	$	(1.7	)	$	(1.8	)
Interest cost on projected benefit obligation		(4.6	)		(5.0	)		(9.3	)		(9.9	)
Expected return on plan assets		6.4			6.3			12.8			12.5
Amortization of prior service cost		(0.2	)		(0.1	)		(0.3	)		(0.2	)
Amortization of actuarial net gains/(losses)		—			0.5			0.1			1.0
Net periodic benefit	$	0.7		$	0.8		$	1.6		$	1.6

The service cost has been recognized in selling, general and administrative expenses. All other items have been recognized within other income and expense. The amortization of prior service cost and actuarial net gains are a reclassification out of accumulated other comprehensive loss into other income and expense.

In addition, we have obligations for post-employment benefits in some of our other European businesses. As at June 30, 2024, we have recorded a liability of $3.9 million (December 31, 2023 – $4.2 million).

NOTE 7 – INCOME TAXES

A roll-forward of unrecognized tax benefits and associated accrued interest and penalties is as follows:


(in millions)	Unrecognized Tax Benefits			Interest and Penalties			Total
Opening balance at January 1, 2024	$	10.5		$	4.3		$	14.8
Increase for tax positions of prior periods		—			0.5			0.5
Decrease for settlement of tax positions		(2.3	)		(1.1	)		(3.4	)
Closing balance at June 30, 2024		8.2			3.7			11.9
Current		(1.0	)		(0.2	)		(1.2	)
Non-current	$	7.2		$	3.5		$	10.7

All of the $11.9 million of unrecognized tax benefits, interest and penalties would impact our effective tax rate if recognized.

In 2021 a non-U.S. subsidiary, Innospec Limited, entered into a review by the U.K. tax authorities under the U.K.’s Profit Diversion Compliance Facility (“PDCF”) in relation to the period 2017 to 2020 inclusive. The Company has determined that additional tax and interest totaling $1.2 million may arise as a result of the ongoing review. Progress was made in concluding the review during the quarter ended June 30, 2024, and the Company now believes that it is reasonably possible that there will be a decrease of $1.2 million unrecognized tax benefits during 2024 in relation to this item resulting from settlement of the outstanding tax positions with the U.K. tax authorities.

In 2018 the Company recorded an unrecognized tax benefit in relation to a potential adjustment that could arise as a consequence of the Tax Cuts and Jobs Act of 2017 (“Tax Act”), but for which retrospective adjustment to the filed 2017 U.S. federal income tax returns was not permissible. The Company has determined that additional tax, interest and penalties totaling $10.7 million may arise in relation to this item. This includes an increase in interest accrued of $0.5 million in the six months to June 30, 2024. The Company believes that it is reasonably possible that there will be a decrease of $10.7 million unrecognized tax benefits during 2024 in relation to this item due to a lapse of the statute of limitations.

A non-U.S. subsidiary, Innospec Performance Chemicals Italia Srl, has been subject to an ongoing tax audit in relation to the period 2011 to 2014 inclusive. The Company has determined that additional tax, interest and penalties totaling $3.4 million will arise as a consequence of the tax audit. As any additional tax arising as a consequence of the tax audit is to be reimbursed by the previous owner under the terms of the sale and purchase agreement, an indemnification asset of the same amount is recorded in the financial statements to reflect this arrangement. During the quarter ended June 30, 2024, the Company submitted documentation to the tax authorities confirming its acceptance of the previously disputed position. The amount due should be settled during 2024, and the liability which is expected to arise on ultimate settlement is consistent with the amount recorded as a liability. Due to imminent settlement, this item has been released from unrecognized tax benefits and recognized in accrued income taxes.

As of June 30, 2024, the Company and its U.S. subsidiaries remain open to examination by the IRS for certain elements of 2017 year and for years 2020 onwards under the statute of limitations. The Company’s subsidiaries in foreign tax jurisdictions are open to examination including Brazil (2019 onwards), Germany (2019 onwards), and the U.K. (2017 onwards).

NOTE 8 – LONG-TERM DEBT

As at June 30, 2024, and December 31, 2023, the Company had not drawn down on its revolving credit facility. During the first six months of 2024 and 2023, the Company did not draw down or repay any borrowing on its revolving credit facility.

The Company continues to have available a $250.0 million multicurrency revolving credit facility (the "Facility") until May 30, 2027. The Facility contains an accordion feature whereby the Company may elect to increase the total available borrowings by an aggregate amount of up to $125.0 million.

Effective as of May 20, 2024, the termination date of the Facility was extended from May 30, 2027 to May 31, 2028 in accordance with the terms of the Company’s multicurrency revolving facility agreement (the “Facility Agreement”). No other terms of the Facility Agreement or the Facility were modified. The Company paid a customary extension fee in connection with the extension of the Facility as contemplated by the Facility Agreement.

As at June 30, 2024, the deferred finance costs of $1.4 million (December 31, 2023 - $1.2 million) related to the arrangement of the credit facility, are included within other current and non-current assets at the balance sheet dates.

NOTE 9 – PLANT CLOSURE PROVISIONS

The Company has continuing plans to remediate manufacturing facilities at sites around the world as and when those operations are expected to cease, or we are required to decommission the sites according to local laws and regulations. The liability for estimated plant closure costs includes costs for environmental remediation liabilities and asset retirement obligations.

The principal site giving rise to asset retirement obligations is the manufacturing site at Ellesmere Port in the United Kingdom. There are also asset retirement obligations and environmental remediation liabilities on a much smaller scale in respect of other manufacturing sites.

Movements in the provisions are summarized as follows:


(in millions)	2024
Total at January 1	$	61.6
Charge for the period		1.7
Utilized in the period		(1.8	)
Exchange effect		(0.4	)
Total at June 30		61.1
Due within one year		(4.6	)
Due after one year	$	56.5

The charge for the six months ended June 30, 2024, was $1.7 million (six months ended June 30, 2023 – $1.9 million). The current year charge represents the accounting accretion only, with no changes for the expected cost and scope of future remediation activities. Amounts due within one year refer to provisions where expenditure is expected to arise within one year of the balance sheet date.

NOTE 10 – FAIR VALUE MEASUREMENTS

The following table presents the carrying amount and fair values of the Company’s financial assets and liabilities measured on a recurring basis:


	June 30, 2024				December 31, 2023
(in millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets
Derivatives (Level 1 measurement):
Other current and non-current assets:
Emissions Trading Scheme credits		4.7		4.7		4.8		4.8
Foreign currency forward exchange contracts		0.5		0.5		—		—
Liabilities
Derivatives (Level 1 measurement):
Other current and non-current liabilities:
Foreign currency forward exchange contracts		—		—		1.0		1.0
Non-financial liabilities (Level 3 measurement):
Acquisition-related contingent consideration		20.2		20.2		23.4		23.4

The following methods and assumptions were used to estimate the fair values:

Emissions Trading Scheme credits: The fair value is determined by the open market pricing at the end of the reporting period.

Foreign currency forward exchange contracts: The fair value of derivatives relating to foreign currency forward exchange contracts are derived from current settlement prices and comparable contracts using current assumptions. Foreign currency forward exchange contracts primarily relate to contracts entered into to hedge future known transactions or hedge balance sheet net cash positions. The movements in the carrying amounts and fair values of these contracts are largely due to changes in exchange rates against the U.S. dollar.

Acquisition-related contingent consideration: Contingent consideration payable in cash is discounted to its fair value at each balance sheet date. Where contingent consideration is dependent upon pre-determined financial targets, an estimate of the fair value of the likely consideration payable is made at each balance sheet date. The contingent consideration payable has been calculated based on the latest forecast.

NOTE 11 – DERIVATIVE INSTRUMENTS AND RISK MANAGEMENT

The Company enters into various foreign currency forward exchange contracts to minimize currency exchange rate exposure from expected future cash flows. As at June 30, 2024, the contracts have maturity dates of up to twelve months at the date of inception. These foreign currency forward exchange contracts have not been designated as hedging instruments, and their impact on the income statement for the first six months of 2024 was a gain of $1.6 million (first six months of 2023 – a loss of $1.6 million). The gain or loss has been recorded in other income or expense.

NOTE 12 – CONTINGENCIES

Legal matters

We are involved from time to time in claims and legal proceedings that result from, and are incidental to, the conduct of our business including business and commercial litigation, and employee and product liability claims.

As reported in the 2023 Form 10-K, we have incurred financial losses and lodged a civil and criminal legal claim related to a misappropriation of inventory in Brazil. As at the time of filing, there have been no significant developments to report in relation to the claims being made. Consistent with prior quarters, a corresponding asset for the potential legal or insurance recoveries has not been recorded for the resulting financial losses arising from this matter.

In addition, unrelated to the Brazil matter, in the unlikely event there are an unexpectedly large number of individual claims or proceedings with an adverse resolution, this could in the aggregate have a material adverse effect on the results of operations for a particular year or quarter.

Guarantees

The Company and certain of the Company’s consolidated subsidiaries are contingently liable for certain obligations of affiliated companies primarily in the form of guarantees of debt and performance under contracts entered into as a normal business practice. This includes guarantees of non-U.S. excise taxes and customs duties. As at June 30, 2024, such guarantees which are not recognized as liabilities in the condensed consolidated financial statements amounted to $6.9 million (December 31, 2023 - $6.2 million). The remaining terms of the fixed maturity guarantees are up to 8 years, with some further guarantees having no fixed expiry date.

Under the terms of the guarantee arrangements, generally the Company would be required to perform the obligations should the affiliated company fail to fulfill its obligations under the arrangements. In some cases, the guarantee arrangements have recourse provisions that would enable the Company to recover any payments made under the terms of the guarantees from securities held of the guaranteed parties’ assets.

The Company and its affiliates have numerous long-term sales and purchase commitments in their various business activities, which are expected to be fulfilled with no adverse consequences material to the Company.

NOTE 13 – STOCK-BASED COMPENSATION PLANS

The compensation cost recorded for stock options for the three months ended June 30, 2024 and 2023 was $2.2 million and $2.0 million, respectively. The compensation cost recorded for stock equivalent units for the three months ended June 30, 2024 and 2023 was $1.5 million and $1.9 million, respectively.

The compensation cost recorded for stock options for the first six months of 2024 and 2023 was $4.2 million and $3.9 million, respectively. The compensation cost recorded for stock equivalent units for the first six months of 2024 and 2023 was $4.0 million and $5.1 million, respectively.

The following table summarizes the transactions of the Company’s share-based compensation plans for the six months ended June 30, 2024.


	Number of shares			Weighted Average Grant-Date Fair Value
Nonvested at December 31, 2023		652,891		$	75.2
Granted		136,667		$	130.5
Vested		(178,495	)	$	86.7
Forfeited		(12,062	)	$	82.7
Nonvested at June 30, 2024		599,001		$	84.2

For the awards granted with market conditions, a Monte Carlo model has been used to calculate the grant-date fair value. For all other awards granted, a fair market value methodology has been used to calculate the grant-date fair value.

The awards granted with market conditions include a performance measure for Innospec's total shareholder return as compared to a peer group of companies. This measure can result in a maximum 130% vesting for the number of stock options granted. The maximum potential vesting has been reflected in the grant-date fair value calculation, but not reflected for the number of awards granted, as shown in the table above. All other awards granted in the quarter have similar vesting conditions to those granted in the previous periods.

As of June 30, 2024, there was $28.8 million of total unrecognized compensation cost related to nonvested share-based compensation arrangements. That cost is expected to be recognized over a weighted-average period of 2.1 years.

NOTE 14 – RECLASSIFICATIONS OUT OF ACCUMULATED OTHER COMPREHENSIVE LOSS

Reclassifications out of accumulated other comprehensive loss (“AOCL”) for the first six months of 2024 were:


(in millions) Details about AOCL Components	Amount Reclassified from AOCL			Affected Line Item in the Statement where Net Income is Presented
Defined benefit pension plan items:
Amortization of prior service cost	$	0.3		See (1) below
Amortization of actuarial net gains		(0.1	)	See (1) below
		0.2		Total before tax
		(0.1	)	Income tax expense
Total reclassifications	$	0.1		Net of tax

(1)

These items are included in other income and expense. See Note 6 of the Notes to the Condensed Consolidated Financial Statements for additional information.

Changes in AOCL for the first six months of 2024, net of tax, were:


(in millions)	Defined Benefit Pension Plan Items			Cumulative Translation Adjustments			Total
Balance at December 31, 2023	$	(77.2	)	$	(70.9	)	$	(148.1	)
Other comprehensive income/(loss) before reclassifications		—			(12.6	)		(12.6	)
Amounts reclassified from AOCL		0.1			—			0.1
Total other comprehensive income/(loss)		0.1			(12.6	)		(12.5	)
Balance at June 30, 2024	$	(77.1	)	$	(83.5	)	$	(160.6	)

Reclassifications out of AOCL for the first six months of 2023 were:


(in millions) Details about AOCL Components	Amount Reclassified from AOCL			Affected Line Item in the Statement where Net Income is Presented
Defined benefit pension plan items:
Amortization of prior service cost	$	0.2		See (1) below
Amortization of actuarial net gains		(1.0	)	See (1) below
		(0.8	)	Total before tax
		0.2		Income tax expense
Total reclassifications	$	(0.6	)	Net of tax

(1)

These items are included in other income and expense. See Note 6 of the Notes to the Condensed Consolidated Financial Statements for additional information.

Changes in AOCL for the first six months of 2023, net of tax, were:


(in millions)	Defined Benefit Pension Plan Items			Cumulative Translation Adjustments			Total
Balance at December 31, 2022	$	(58.4	)	$	(86.8	)	$	(145.2	)
Other comprehensive income/(loss) before reclassifications		—			6.1			6.1
Amounts reclassified from AOCL		(0.6	)		—			(0.6	)
Total other comprehensive income/(loss)		(0.6	)		6.1			5.5
Balance at June 30, 2023	$	(59.0	)	$	(80.7	)	$	(139.7	)

NOTE 15 – RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

The Company has reviewed recently issued accounting pronouncements and concluded there were no matters relevant to the Company’s financial statements.

NOTE 16 – RELATED PARTY TRANSACTIONS

Mr. Patrick S. Williams has been an executive director of the Company since April 2009 and has been a non-executive director of AdvanSix Inc. ("AdvanSix"), a chemicals manufacturer, since February 2020. In the first six months of 2024 the Company did not purchase any product from AdvanSix (first six months of 2023 – $0.2 million). As at June 30, 2024, the Company owed nil to AdvanSix (December 31, 2023 – nil).

Mr. Robert I. Paller was a non-executive director of the Company since November 1, 2009 until May 10, 2024, when he did not stand for re-election to the board. The Company has retained and continues to retain Smith, Gambrell & Russell, LLP (“SGR”), a law firm with which Mr. Paller holds a position. From January 1st until May 10th, 2024 the Company incurred fees from SGR of $0.2 million (first six months of 2023 – $0.2 million). As at June 30, 2023, the Company owed nil to SGR (December 31, 2023 – nil).

Mr. David F. Landless has been a non-executive director of the Company since January 1, 2016 and is a non-executive director of Ausurus Group Limited which owns European Metal Recycling Limited (“EMR”). The Company has sold scrap metal to EMR in the first six months of 2024 for a value of less than $0.1 million (first six months of 2023 – $0.1 million). A tendering process is operated periodically to select the best buyer for the sale of scrap metal by the Company. As at June 30, 2024, EMR owed less than $0.1 million for scrap metal purchased from the Company (December 31, 2023 – nil).

Item 2 Management’s Discussion and Analysis of Financial Condition and Results of Operations for the Three and Six Months Ended June 30, 2024

This discussion should be read in conjunction with our unaudited interim condensed consolidated financial statements and the notes thereto.

CRITICAL ACCOUNTING ESTIMATES

The policies and estimates that the Company considers the most critical in terms of complexity and subjectivity of assessment are those related to plant closure provisions, pensions, income taxes and goodwill. These policies have been discussed in the Company’s 2023 Form 10-K.

RESULTS OF OPERATIONS

The Company reports its financial performance based on three reportable segments, which are Performance Chemicals, Fuel Specialties and Oilfield Services.

The following table provides sales, gross profit and operating income by reporting segment:


	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2024			2023			2024			2023
Net sales:
Performance Chemicals	$	160.1		$	127.8		$	320.9		$	279.2
Fuel Specialties		166.6			154.2			343.5			344.5
Oilfield Services		108.3			198.4			270.8			366.3
	$	435.0		$	480.4		$	935.2		$	990.0
Gross profit:
Performance Chemicals	$	36.2		$	22.0		$	73.9		$	46.1
Fuel Specialties		57.6			44.8			118.2			102.2
Oilfield Services		33.1			83.6			90.5			149.9
	$	126.9		$	150.4		$	282.6		$	298.2
Operating income/(loss):
Performance Chemicals	$	21.2		$	9.2		$	42.3		$	19.6
Fuel Specialties		30.4			17.1			63.8			49.5
Oilfield Services		7.3			28.0			24.2			43.9
Corporate costs		(17.6	)		(20.1	)		(37.8	)		(37.8	)
Adjustment to fair value of contingent consideration		(0.6	)		—			(1.4	)		—
Profit on disposal of property, plant and equipment		—			—			0.1			—
Total operating income	$	40.7		$	34.2		$	91.2		$	75.2

Three Months Ended June 30, 2024

The following table shows the changes in sales, gross profit and operating expenses by reporting segment for the three months ended June 30, 2024, and the three months ended June 30, 2023:


	Three Months Ended June 30,
(in millions, except ratios)	2024			2023			Change
Net sales:
Performance Chemicals	$	160.1		$	127.8		$	32.3		+25%
Fuel Specialties		166.6			154.2			12.4		+8%
Oilfield Services		108.3			198.4			(90.1	)	-45%
	$	435.0		$	480.4		$	(45.4	)	-9%
Gross profit:
Performance Chemicals	$	36.2		$	22.0		$	14.2		+65%
Fuel Specialties		57.6			44.8			12.8		+29%
Oilfield Services		33.1			83.6			(50.5	)	-60%
	$	126.9		$	150.4		$	(23.5	)	-16%
Gross margin (%):
Performance Chemicals		22.6			17.2			+5.4
Fuel Specialties		34.6			29.1			+5.5
Oilfield Services		30.6			42.1			-11.5
Aggregate		29.2			31.3			-2.1
Operating expenses:
Performance Chemicals	$	(15.0	)	$	(12.8	)	$	(2.2	)	+17%
Fuel Specialties		(27.2	)		(27.7	)		0.5		-2%
Oilfield Services		(25.8	)		(55.6	)		29.8		-54%
Corporate costs		(17.6	)		(20.1	)		2.5		-12%
Adjustment to fair value of contingent consideration		(0.6	)		—			(0.6	)	n/a
	$	(86.2	)	$	(116.2	)	$	30.0		-26%

Performance Chemicals

Net sales: the table below details the components which comprise the year over year change in net sales spread across the markets in which we operate:

     
    Three Months Ended June 30, 2024

    Change (%)

    Americas

    EMEA

    ASPAC

    Total

Volume

+44

+18

+32

+29

Acquisition

—

—

—

+7

Price and product mix

-15

-8

-9

-11

Exchange rates

—

—

—

—

+29

+10

+23

+25

Higher sales volumes for all our regions were driven by increased demand for our personal care and home care products resulting from higher consumer demand. The acquisition of the QGP business has also delivered a volume increase year over year. All our regions recorded an adverse price and product mix due to lower selling prices, driven by lower raw material costs, together with greater demand from consumers for lower priced products.

Gross margin: the year over year increase of 5.4 percentage points was due to margins returning to a more normalized level when compared to the depressed margins in the prior year. Margins have benefited from raw materials pricing reductions in the current year, combining with the favorable impact for our manufacturing efficiency due to the higher production volumes.

Operating expenses: increased $2.2 million year over year due to higher sales commissions, increased

amortization for acquired intangible assets relating to the QGP acquisition, increased spending on research and development and higher performance-related remuneration.

Fuel Specialties

Net sales: the table below details the components which comprise the year over year change in net sales spread across the markets in which we operate:

     
    Three Months Ended June 30, 2024

    Change (%)

    Americas

    EMEA

    ASPAC

    AvGas

    Total

Volume

+21

+11

+23

+81

+20

Price and product mix

-27

-3

-8

+52

-12

Exchange rates

—

-1

—

—

—

-6

+7

+15

+133

+8

Sales volumes in all our regions have increased year over year due to increased demand from customers. Price and product mix was adverse in all our regions, with a favorable sales mix being offset by lower pricing resulting from lower raw material costs. AvGas volumes were higher than the prior year due to variations in the demand from customers, together with a favorable price and product mix due to a higher proportion of sales being made to higher margin customers.

Gross margin: the year over year increase of 5.5 percentage points was driven by an improved sales mix from increased sales of higher margin products, together with the easing of raw material and other inflationary pressures and the adverse impact of the Brazil inventory misappropriation and associated costs of exiting the trading relationship in the prior year.

Operating expenses: the year over year decrease of $0.5 million was primarily due to lower provisions for doubtful debts being partly offset by higher research and development expenditure.

Oilfield Services

Net sales: have decreased year over year by $90.1 million, or 45 percent, with the majority of our customer activity concentrated in the Americas region. Sales volumes were adversely impacted by significantly lower production chemical activity in 2024. Management expects to see lower sales volumes continuing in production chemicals through the second half of 2024, with the potential for demand to recover over the near-term, together with the potential growth opportunities in our other oilfield markets.

Gross margin: the year over year decrease of 11.5 percentage points was due to an unfavorable sales mix as customer demand has weakened.

Operating expenses: the year over year decrease of $29.8 million was driven by the lower customer service costs and commissions related to the reduced demand from certain customers, together with lower provisions for doubtful debts and lower performance related remuneration accruals.

Other Income Statement Captions

Corporate costs: the year over year decrease of $2.5 million was primarily due to acquisition related costs in the prior year compared to none in the current year, together with a favorable revaluation for our United Kingdom Emission Trading Scheme credits in the current year compared to an adverse revaluation in the prior year.

Other net income/(expense): for the second quarter of 2024 and 2023, included the following:


(in millions)	2024			2023			Change
Net pension credit	$	1.6		$	1.7			(0.1	)
Foreign exchange gains/(losses) on translation		(0.1	)		1.7			(1.8	)
Foreign currency forward contracts gains/(losses)		(0.6	)		(0.7	)		0.1
	$	0.9		$	2.7		$	(1.8	)

Interest income/(expense), net: was income of $2.1 million in the second quarter of 2024 compared to an expense of $0.3 million in the second quarter of 2023, driven by the higher interest income being earned in 2024 for our increasing cash balances.

Income taxes: the effective tax rate was 28.6% and 21.0% in the second quarter of 2024 and 2023, respectively. The adjusted effective tax rate, once adjusted for the items set out in the following table, was 28.4% in 2024 compared with 21.0% in 2023. The 7.4 percentage points increase in the adjusted effective rate was primarily due to the fact that a higher proportion of the Company’s profits are being generated in higher tax jurisdictions. The Company believes that this adjusted effective tax rate, a non-GAAP financial measure, provides useful information to investors and may assist them in evaluating the Company’s underlying performance and identifying operating trends. In addition, management uses this non-GAAP financial measure internally to evaluate the performance of the Company’s operations and for planning and forecasting in subsequent periods.

The following table shows a reconciliation of the GAAP effective tax charge to the adjusted effective tax charge:


	Three Months Ended June 30,
(in millions)	2024			2023
Income before income taxes	$	43.7		$	36.6
Adjustment for stock compensation		2.1			2.0
Acquisition costs		—			1.5
Adjustment to fair value of contingent consideration		0.6			—
Legacy costs of closed operations		0.8			0.9
Adjusted income before income taxes	$	47.2		$	41.0
Income taxes	$	12.5		$	7.7
Tax on stock compensation		0.2			—
Adjustment of income tax provision		(3.1	)		0.3
Tax on acquisition costs		—			0.4
Tax on legacy cost of closed operations		0.2			0.2
Tax on adjustment to fair value of contingent consideration		0.2			—
Adjustments to tax charge of prior periods		3.4			—
Adjusted income taxes	$	13.4		$	8.6
GAAP effective tax rate		28.6	%		21.0	%
Adjusted effective tax rate		28.4	%		21.0	%

Six Months Ended June 30, 2024

The following table shows the changes in sales, gross profit and operating expenses by reporting segment for the six months ended June 30, 2024, and the six months ended June 30, 2023:


	Six Months Ended June 30,
(in millions, except ratios)	2024			2023			Change
Net sales:
Performance Chemicals	$	320.9		$	279.2		$	41.7		+15%
Fuel Specialties		343.5			344.5			(1.0	)	-0%
Oilfield Services		270.8			366.3			(95.5	)	-26%
	$	935.2		$	990.0		$	(54.8	)	-6%
Gross profit:
Performance Chemicals	$	73.9		$	46.1		$	27.8		+60%
Fuel Specialties		118.2			102.2			16.0		+16%
Oilfield Services		90.5			149.9			(59.4	)	-40%
	$	282.6		$	298.2		$	(15.6	)	-5%
Gross margin (%):
Performance Chemicals		23.0			16.5			+6.5
Fuel Specialties		34.4			29.7			+4.7
Oilfield Services		33.4			40.9			-7.5
Aggregate		30.2			30.1			+0.1
Operating expenses:
Performance Chemicals	$	(31.6	)	$	(26.5	)	$	(5.1	)	+19%
Fuel Specialties		(54.4	)		(52.7	)		(1.7	)	+3%
Oilfield Services		(66.3	)		(106.0	)		39.7		-37%
Corporate costs		(37.8	)		(37.8	)		—		+0%
Adjustment to fair value of contingent consideration		(1.4	)		—			(1.4	)	n/a
Profit on disposal of property, plant and equipment		0.1			—			0.1		n/a
	$	(191.4	)	$	(223.0	)	$	31.6		-14%

Performance Chemicals

Net sales: the table below details the components which comprise the year over year change in net sales spread across the markets in which we operate:

     
    Six Months Ended June 30, 2024

    Change (%)

    Americas

    EMEA

    ASPAC

    Total

Volume

+31

+13

+24

+20

Acquisition

—

—

—

+7

Price and product mix

-14

-11

-11

-12

Exchange rates

—

—

—

—

+17

+2

+13

+15

Gross margin: the year over year increase of 6.5 percentage points was due to margins returning to a more normalized level when compared to the depressed margins in the prior year. Margins have benefited from raw materials pricing reductions in the current year, combining with the favorable impact for our manufacturing efficiency due to the higher production volumes.

Operating expenses: increased $5.1 million year over year due to higher selling expenses, increased amortization for acquired intangible assets relating to the QGP acquisition, increased spending on research and development and higher performance-related remuneration.

Fuel Specialties

Net sales: the table below details the components which comprise the year over year change in net sales spread across the markets in which we operate:

     
    Six Months Ended June 30, 2024

    Change (%)

    Americas

    EMEA

    ASPAC

    AvGas

    Total

Volume

+9

+5

+4

+27

+8

Price and product mix

-15

-7

+1

+23

-8

Exchange rates

—

+1

—

—

—

-6

-1

+5

+50

—

Sales volumes in all our regions have increased year over year due to increased demand from customers. Price and product mix was adverse in the Americas and EMEA, with a favorable sales mix being offset by lower pricing resulting from lower raw material costs. ASPAC benefited from a favorable price and product mix due to the increased sales of higher priced products. AvGas volumes were higher than the prior year due to variations in the demand from customers, together with a favorable price and product mix due to a higher proportion of sales being made to higher margin customers.

Gross margin: the year over year increase of 4.7 percentage points was driven by an improved sales mix from increased sales of higher margin products, together with the easing of raw material and other inflationary pressures and the adverse impact of the Brazil inventory misappropriation and associated costs of exiting the trading relationship in the prior year.

Operating expenses: the year over year increase of $1.7 million is due to higher research and development expenditure and higher performance-related remuneration accruals.

Oilfield Services

Net sales: have decreased year over year by $95.5 million, or 26 percent, with the majority of our customer activity concentrated in the Americas region. Sales volumes were adversely impacted by significantly lower production chemical activity in 2024. Management expects to see lower sales volumes continuing in production chemicals through the second half of 2024, with the potential for demand to recover over the near-term, together with the potential growth opportunities in our other oilfield markets.

Gross margin: the year over year decrease of 7.5 percentage points was due to an unfavorable sales mix as customer demand has weakened.

Operating expenses: the year over year decrease of $39.7 million was driven by the lower customer service costs and commissions related to the reduced demand from certain customers, together with lower provisions for doubtful debts and lower performance related remuneration accruals.

Other Income Statement Captions

Corporate costs: are in line with the prior year, including the benefit of no acquisition related costs in the current year being primarily offset by higher information technology investment together with the adverse impact of inflationary increases.

Other net income/(expense): for the first six months of 2024 and 2023, included the following:


(in millions)	2024			2023			Change
Net pension credit	$	3.3		$	3.4		$	(0.1	)
Foreign exchange gains/(losses) on translation		(1.3	)		4.6			(5.9	)
Foreign currency forward contracts gains/(losses)		1.6			(1.6	)		3.2
	$	3.6		$	6.4		$	(2.8	)

Interest income/(expense), net: was income of $4.2 million in the first six months of 2024 compared to nil in the first six months of 2023. Interest income from our cash balances has increased over recent periods due to higher central bank interest rates together with the increases in our cash balances.

Income taxes: the effective tax rate was 26.7% and 23.9% in the first six months of 2024 and 2023, respectively. The adjusted effective tax rate, once adjusted for the items set out in the following table, was 26.2% in 2024 compared with 23.6% in 2023. The 2.6 percentage points increase in the adjusted effective rate was primarily due to the fact that a higher proportion of the Company’s profits are being generated in higher tax jurisdictions. The Company believes that this adjusted effective tax rate, a non-GAAP financial measure, provides useful information to investors and may assist them in evaluating the Company’s underlying performance and identifying operating trends. In addition, management uses this non-GAAP financial measure internally to evaluate the performance of the Company’s operations and for planning and forecasting in subsequent periods.

The following table shows a reconciliation of the GAAP effective tax charge to the adjusted effective tax charge:


	Six Months Ended June 30,
(in millions)	2024			2023
Income before income taxes	$	99.0		$	81.6
Indemnification asset regarding tax audit		0.1			(0.1	)
Adjustment for stock compensation		4.2			3.9
Acquisition costs		—			1.5
Adjustment to fair value of contingent consideration		1.4			—
Legacy cost of closed operations		1.6			1.7
Adjusted income before income taxes	$	106.3		$	88.6
Income taxes	$	26.4		$	19.5
Tax on stock compensation		0.1			—
Adjustment of income tax provision		(2.9	)		0.6
Tax on acquisition costs		—			0.4
Tax on legacy cost of closed operations		0.4			0.4
Tax on adjustment to fair value of contingent consideration		0.5			—
Adjustments to tax charge of prior periods		3.4			—
Adjusted income taxes	$	27.9		$	20.9
GAAP effective tax rate		26.7	%		23.9	%
Adjusted effective tax rate		26.2	%		23.6	%

LIQUIDITY AND FINANCIAL CONDITION

Working Capital

In the first six months of 2024 our working capital increased by $29.8 million, while our adjusted working capital increased by $3.6 million. The difference is primarily due to the exclusion of the increases for cash and cash equivalents, together with the changes for prepaid income taxes and the current portion of accrued income taxes.

The Company believes that adjusted working capital, a non-GAAP financial measure (defined by the Company as trade and other accounts receivable, inventories, prepaid expenses, accounts payable and accrued liabilities rather than total current assets less total current liabilities) provides useful information to investors in evaluating the Company’s underlying performance and identifying operating trends. Management uses this non-GAAP financial measure internally to allocate resources and evaluate the performance of the Company’s operations. Items excluded from working capital in the adjusted working capital calculation are listed in the table below and represent factors which do not fluctuate in line with the day to day working capital needs of the business.


(in millions)	June 30, 2024			December 31, 2023
Total current assets	$	876.8		$	885.7
Total current liabilities		(332.8	)		(371.5	)
Working capital		544.0			514.2
Less cash and cash equivalents		(240.2	)		(203.7	)
Less prepaid income taxes		(12.1	)		(2.8	)
Less other current assets		(1.0	)		(0.6	)
Add back current portion of accrued income taxes		21.3			2.6
Add back current portion of plant closure provisions		4.6			4.6
Add back current portion of operating lease liabilities		14.9			13.6
Add back current portion of unrecognized tax benefits		1.2			1.2
Adjusted working capital	$	332.7		$	329.1

We had a $59.5 million decrease in trade and other accounts receivable driven by positive cash collections. Days’ sales outstanding decreased in our Performance Chemicals segment from 64 days to 61 days; increased from 55 days to 58 days in our Fuel Specialties segment; and increased from 55 days to 63 days in our Oilfield Services segment.

We had a $13.4 million increase in inventories, including a $10.0 million increase in allowances, driven by higher levels of raw materials. The Company continues to maintain inventory levels necessary to manage the risk of potential supply chain disruption for certain key raw materials, especially in our Fuel Specialties segment. Days’ sales in inventory in our Performance Chemicals segment increased from 62 days to 63 days; increased from 121 days to 141 days in our Fuel Specialties segment; and increased from 48 days to 69 days in our Oilfield Services segment.

Prepaid expenses decreased $9.0 million, from $18.7 million to $9.7 million, primarily due to the normal expensing of prepaid invoices.

We had a $58.7 million decrease in accounts payable and accrued liabilities, which was dependent on the timing of payments for each of our reporting segments. Creditor days (including goods received not invoiced) have increased in our Performance Chemicals segment from 45 days to 48 days; increased from 41 days to 44 days in our Fuel Specialties segment; and increased from 48 days to 51 days in our Oilfield Services segment. The increases for creditor days have been impacted by the timing of sales in the last two months of the quarter.

Operating Cash Flows

We generated cash from operating activities of $85.3 million in the first six months of 2024 compared to $76.8 million in the first six months of 2023. The increase in cash generated from operating activities was related to increased operating income and favorable income tax changes year over year, being partly offset by higher working capital requirements in the current year primarily related to the increased inventory levels needed to secure the supply of certain raw materials.

Cash

At June 30, 2024 and December 31, 2023, we had cash and cash equivalents of $240.2 million and $203.7 million, respectively, of which $77.8 million and $59.8 million, respectively, were held by non-U.S. subsidiaries principally in the United Kingdom.

The increase in cash and cash equivalents of $36.5 million for the first six months of 2024 was driven by our positive trading cash flow, being partly offset by our working capital needs, our continued investments in capital projects and the payment of our semi-annual dividend.

Debt

We continue to have available a $250.0 million multicurrency revolving credit facility (the “Facility”), which contains an accordion feature whereby we may elect to increase the total available borrowings by an aggregate amount of up to $125.0 million. Effective as of May 20, 2024, the termination date of the Facility was extended from May 30, 2027 to May 31, 2028 in accordance with the terms of our multicurrency revolving facility agreement (the “Facility Agreement”). No other terms of the Facility Agreement or the Facility were modified. We paid a customary extension fee in connection with the extension of the Facility as contemplated by the Facility Agreement.

At June 30, 2024, and December 31, 2023, we had no debt outstanding under the revolving credit facility and no obligations were outstanding under finance leases. See Note 8 of the Notes to the Condensed Consolidated Financial Statements for additional information.

Item 3 Quantitative and Qualitative Disclosures about Market Risk

The Company uses floating rate debt to finance its global operations. The Company is subject to business risks inherent in non-U.S. activities, including political and economic uncertainty, import and export limitations, and market risk related to changes in interest rates and foreign currency exchange rates. The political and economic risks are mitigated by the stability of the major countries in which the Company’s largest operations are located. Credit limits, ongoing credit evaluation and account monitoring procedures are used to minimize bad debt risk. Collateral is not generally required.

From time to time, the Company uses derivatives, including interest rate swaps, commodity swaps and foreign currency forward exchange contracts, in the normal course of business to manage market risks. The derivatives used in hedging activities are considered risk management tools and are not used for trading purposes. In addition, the Company enters into derivative instruments with a diversified group of major financial institutions in order to manage the exposure to non-performance of such instruments. The Company’s objective in managing the exposure to changes in interest rates is to limit the impact of such changes on earnings and cash flows and to lower overall borrowing costs. The Company’s objective in managing the exposure to changes in foreign currency exchange rates is to reduce volatility on earnings and cash flows associated with such changes.

The Company offers fixed prices for some long-term sales contracts. As manufacturing and raw material costs are subject to variability, the Company, from time to time, uses commodity swaps to hedge the cost of some raw materials thus reducing volatility on earnings and cash flows. The derivatives are considered risk management tools and are not used for trading purposes. The Company’s objective is to manage its exposure to fluctuating costs of raw materials.

The Company’s exposure to market risk has been discussed in the 2023 Form 10-K and there have been no significant changes since that time.

Item 4 Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Based on an evaluation carried out as of the end of the period covered by this report, under the supervision and with the participation of our management, our Chief Executive Officer and our Chief Financial Officer concluded that the Company’s “disclosure controls and procedures” (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934) were effective as of June 30, 2024, to provide reasonable assurance that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms and (ii) accumulated and communicated to the Company’s management, including its principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

The Company is continuously seeking to improve the efficiency and effectiveness of its operations and of its internal control over financial reporting. This is intended to result in refinements to processes throughout the Company.

There were no changes to our internal control over financial reporting which were identified in connection with the evaluation required by paragraph (d) of Rules 13a-15 and 15d-15 under the Securities Exchange Act of 1934, that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

PART II OTHER INFORMATION

Item 1 Legal Proceedings

Legal matters

Item 1A Risk Factors

Information regarding risk factors that could have a material impact on our results of operations or financial condition are described under “Risk Factors” in Item 1A of Part I of our 2023 Form 10-K. In management’s view, there have been no material changes in the risk factors facing the Company as disclosed in those SEC filings.

Item 2 Unregistered Sales of Equity Securities and Use of Proceeds

There have been no unregistered sales of equity securities.

The following table provides information about our repurchases of equity securities in the period.


Period	Total number of shares purchased		Average price paid per share		Total number of shares purchased as part of publicly announced plans or programs		Approximate dollar value of shares that may yet be purchased under the plans or programs
May 1, 2024 through May 31, 2024		2,099	$	128.8		—	$	43.6	million
Total		2,099	$	128.8		—	$	43.6	million

During the quarter ended June 30, 2024, the Company did not purchase any of its common stock as part of its share repurchase program announced on February 15, 2022. The repurchase program allows for up to $50 million of the Company’s common stock to be repurchased in the open market over a three-year period commencing on February 16, 2022.

During the quarter ended June 30, 2024, the company repurchased its common stock in connection with the exercising of stock options by directors and employees.

Item 3 Defaults Upon Senior Securities

None.

Item 4 Mine Safety Disclosures

Not applicable.

Item 5 Other Information

(a), (b), and (c) – None.

Item 6 Exhibits


10.1		Extension Request for Multicurrency Revolving Facility Agreement and Confirmation (Incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K filed on May 21, 2024).
31.1		Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2		Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1		Certification of Chief Executive Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2		Certification of Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101		XBRL Instance Document and Related Item - The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.
104		Cover Page Interactive Data File – The cover page XBRL tags are embedded within the inline XBRL document.

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.


		INNOSPEC INC.
	Registrant

Date: August 7, 2024	By	/s/ PATRICK S. WILLIAMS
		Patrick S. Williams President and Chief Executive Officer

Date: August 7, 2024	By	/s/ IAN P. CLEMINSON
		Ian P. Cleminson Executive Vice President and Chief Financial Officer

Exhibit 31.1

CERTIFICATION BY PATRICK S. WILLIAMS PURSUANT TO

SECURITIES EXCHANGE ACT 1934 RULE 13a-14 and 15d-14

I, Patrick S. Williams, certify that:

I have reviewed this quarterly report on Form 10-Q of Innospec Inc.;

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;

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;

The registrant’s other certifying officer(s) 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:

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;

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;

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

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

The registrant’s other certifying officer(s) 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):

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

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.

/s/ PATRICK S. WILLIAMS

Patrick S. Williams

President and Chief Executive Officer

August 7, 2024

Exhibit 31.2

CERTIFICATION BY IAN P. CLEMINSON PURSUANT TO

SECURITIES EXCHANGE ACT 1934 RULE 13a-14 and 15d-14

I, Ian P. Cleminson, certify that:

I have reviewed this quarterly report on Form 10-Q of Innospec Inc.;

15d-15(f)) for the registrant and have:

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.

/s/ IAN P. CLEMINSON

Ian P. Cleminson

Executive Vice President and Chief Financial Officer

August 7, 2024

Exhibit 32.1

Section 1350 Certification

by Patrick S. Williams

In connection with the Quarterly Report on Form 10-Q of Innospec Inc. (the “Company”) for the period ended June 30, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Patrick S. Williams, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)

The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/ PATRICK S. WILLIAMS

Patrick S. Williams

President and Chief Executive Officer

August 7, 2024

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350 and is not being filed as part of this Report or as a separate disclosure document.

A signed original of this written statement required by 18 U.S.C. § 1350 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission upon request.

Exhibit 32.2

Section 1350 Certification

by Ian P. Cleminson

In connection with the Quarterly Report on Form 10-Q of Innospec Inc. (the “Company”) for the period ended June 30,2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Ian P. Cleminson, Executive Vice President and Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)

The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)

The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

/s/ IAN P. CLEMINSON

Executive Vice President and Chief Financial Officer

Ian P. Cleminson

August 7, 2024

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350 and is not being filed as part of this Report or as a separate disclosure document.

Cover Page - shares	6 Months Ended
Cover Page - shares	Jun. 30, 2024	Jul. 31, 2024
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Document Quarterly Report	true
Document Transition Report	false
Current Fiscal Year End Date	--12-31
Document Period End Date	Jun. 30, 2024
Entity File Number	1-13879
Entity Registrant Name	INNOSPEC INC.
Entity Central Index Key	0001054905
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	98-0181725
City Area Code	303
Entity Address, Postal Zip Code	80112
Local Phone Number	792 5554
Security Exchange Name	NASDAQ
Title of 12(b) Security	Common stock
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		24,941,421
Entity Address, Address Line One	8310 South Valley Highway
Entity Address, Address Line Two	Suite 350
Entity Address, City or Town	Englewood
Entity Address, State or Province	CO
Trading Symbol	IOSP
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes

Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Net sales	$ 435.0	$ 480.4	$ 935.2	$ 990.0
Cost of goods sold	(308.1)	(330.0)	(652.6)	(691.8)
Gross profit	126.9	150.4	282.6	298.2
Operating expenses:
Selling, general and administrative	(73.4)	(105.6)	(166.1)	(201.8)
Research and development	(12.2)	(10.6)	(24.0)	(21.2)
Adjustment to fair value of contingent consideration	(0.6)	0.0	(1.4)	0.0
Profit on disposal of property, plant and equipment	0.0	0.0	0.1	0.0
Total operating expenses	(86.2)	(116.2)	(191.4)	(223.0)
Operating income	40.7	34.2	91.2	75.2
Other income, net	0.9	2.7	3.6	6.4
Interest income/(expense), net	2.1	(0.3)	4.2	0.0
Income before income tax expense	43.7	36.6	99.0	81.6
Income tax expense	(12.5)	(7.7)	(26.4)	(19.5)
Net income	$ 31.2	$ 28.9	$ 72.6	$ 62.1
Earnings per share:
Basic	$ 1.25	$ 1.16	$ 2.91	$ 2.5
Diluted	$ 1.24	$ 1.16	$ 2.89	$ 2.48
Weighted average shares outstanding (in thousands):
Basic	24,937	24,868	24,918	24,835
Diluted	25,097	24,980	25,091	25,010

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 31.2	$ 28.9	$ 72.6	$ 62.1
Changes in cumulative translation adjustment	(6.3)	1.7	(14.0)	6.8
Amortization of prior service cost	0.2	0.1	0.3	0.2
Amortization of actuarial net gains	0.0	(0.5)	(0.1)	(1.0)
Other comprehensive income/(loss), before tax	(6.1)	1.3	(13.8)	6.0
Tax related to cumulative translation adjustment	1.0	(0.3)	1.4	(0.7)
Tax related to other movements	(0.1)	0.1	(0.1)	0.2
Income tax income/(expense) related to other comprehensive income	0.9	(0.2)	1.3	(0.5)
Total comprehensive income	$ 26.0	$ 30.0	$ 60.1	$ 67.6

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 240.2	$ 203.7
Trade and other accounts receivable (less allowances of $9.4 million and $10.3 million respectively)	300.3	359.8
Inventories (less allowances of $38.0 million and $28.1 million respectively):
Finished goods	210.9	215.7
Raw materials	102.6	84.4
Total inventories	313.5	300.1
Prepaid expenses	9.7	18.7
Prepaid income taxes	12.1	2.8
Other current assets	1.0	0.6
Total current assets	876.8	885.7
Net property, plant and equipment	271.9	268.3
Operating lease right-of-use assets	47.9	45.1
Goodwill	388.2	399.3
Other intangible assets	61.4	57.3
Deferred tax assets	10.4	10.4
Pension asset	37.0	35.1
Other non-current assets	6.7	6.2
Total assets	1,700.3	1,707.4
Current liabilities:
Accounts payable	147.7	163.6
Accrued liabilities	143.1	185.9
Current portion of operating lease liabilities	14.9	13.6
Current portion of plant closure provisions	4.6	4.6
Current portion of accrued income taxes	21.3	2.6
Current portion of unrecognized tax benefits	1.2	1.2
Total current liabilities	332.8	371.5
Operating lease liabilities, net of current portion	33.2	31.6
Plant closure provisions, net of current portion	56.5	57.0
Accrued income taxes, net of current portion	0.0	11.6
Unrecognized tax benefits	10.7	13.6
Deferred tax liabilities	35.4	33.5
Pension liabilities and post-employment benefits	12.7	13.3
Acquisition-related contingent consideration	20.2	23.4
Other non-current liabilities	2.9	2.3
Total liabilities	504.4	557.8
Equity:
Common stock, $0.01 par value, authorized 40,000,000 shares, issued 29,554,500 shares	0.3	0.3
Additional paid-in capital	364.5	361.0
Treasury stock (4,613,079 and 4,686,511 shares at cost, respectively)	(93.4)	(94.3)
Retained earnings	1,081.8	1,028.2
Accumulated other comprehensive loss	(160.6)	(148.1)
Total Innospec stockholders' equity	1,192.6	1,147.1
Non-controlling interest	3.3	2.5
Total equity	1,195.9	1,149.6
Total liabilities and equity	$ 1,700.3	$ 1,707.4

Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Allowances for doubtful accounts	$ 9.4	$ 10.3
Inventory allowances	$ 38.0	$ 28.1
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	29,554,500	29,554,500
Treasury stock, shares	4,613,079	4,686,511

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash Flows from Operating Activities
Net income	$ 72.6	$ 62.1
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	21.5	19.2
Adjustment to fair value of contingent consideration	1.4	0.0
Deferred taxes	0.7	1.1
Profit on disposal of property, plant and equipment	(0.1)	0.0
Non-cash movements on defined benefit pension plans	(1.6)	(1.7)
Stock option compensation	4.2	3.9
Changes in assets and liabilities, net of effects of acquired and divested companies:
Trade and other accounts receivable	54.5	26.4
Inventories	(17.8)	19.0
Prepaid expenses	8.9	3.8
Accounts payable and accrued liabilities	(55.6)	(37.7)
Plant closure provisions	(0.1)	(0.5)
Income taxes	(0.1)	(21.6)
Unrecognized tax benefits	(2.9)	0.6
Other assets and liabilities	(0.3)	2.2
Net cash provided by operating activities	85.3	76.8
Cash Flows from Investing Activities
Capital expenditures	(21.6)	(32.6)
Internally developed software	(8.1)	(6.7)
Business combinations, net of cash acquired	(0.2)	0.0
Proceeds on disposal of property, plant and equipment	0.2	0.0
Net cash used in investing activities	(29.7)	(39.3)
Cash Flows from Financing Activities
Non-controlling interest	0.8	0.2
Refinancing costs	(0.3)	(1.5)
Dividend paid	(19.0)	(17.2)
Issue of treasury stock	0.8	0.7
Repurchase of common stock	(0.7)	(1.0)
Net cash used in financing activities	(18.4)	(18.8)
Effect of foreign currency exchange rate changes on cash	(0.7)	0.1
Net change in cash and cash equivalents	36.5	18.8
Cash and cash equivalents at beginning of period	203.7	147.1
Cash and cash equivalents at end of period	$ 240.2	$ 165.9

Condensed Consolidated Statements of Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Non-Controlling Interest [Member]
Beginning Balance at Dec. 31, 2022	$ 1,040.4	$ 0.3	$ 354.1	$ (95.4)	$ 924.2	$ (145.2)	$ 2.4
Net income	62.1				62.1
Dividend paid	(17.2)				(17.2)
Changes in cumulative translation adjustment, net of tax	6.1					6.1
Share of net income	0.2						0.2
Treasury stock reissued	0.8		(1.3)	2.1
Treasury stock repurchased	(0.9)			(0.9)
Stock option compensation	3.9		3.9
Amortization of prior service cost, net of tax	0.2					0.2
Amortization of actuarial net losses, net of tax	(0.8)					(0.8)
Ending Balance at Jun. 30, 2023	1,094.8	0.3	356.7	(94.2)	969.1	(139.7)	2.6
Beginning Balance at Mar. 31, 2023	1,080.6	0.3	354.8	(93.5)	957.4	(140.8)	2.4
Net income	28.9				28.9
Dividend paid	(17.2)				(17.2)
Changes in cumulative translation adjustment, net of tax	1.4					1.4
Non-controlling interest	0.2						0.2
Treasury stock reissued	(0.1)		(0.1)	0.0
Treasury stock repurchased	(0.7)			(0.7)
Stock option compensation	2.0		2.0
Amortization of prior service cost, net of tax	0.1					0.1
Amortization of actuarial net losses, net of tax	(0.4)					(0.4)
Ending Balance at Jun. 30, 2023	1,094.8	0.3	356.7	(94.2)	969.1	(139.7)	2.6
Beginning Balance at Dec. 31, 2023	1,149.6	0.3	361.0	(94.3)	1,028.2	(148.1)	2.5
Net income	72.6				72.6
Dividend paid	(19.0)				(19.0)
Changes in cumulative translation adjustment, net of tax	(12.6)					(12.6)
Share of net income	0.8						0.8
Treasury stock reissued	0.9		(0.7)	1.6
Treasury stock repurchased	(0.7)			(0.7)
Stock option compensation	4.2		4.2
Amortization of prior service cost, net of tax	0.2					0.2
Amortization of actuarial net losses, net of tax	(0.1)					(0.1)
Ending Balance at Jun. 30, 2024	1,195.9	0.3	364.5	(93.4)	1,081.8	(160.6)	3.3
Beginning Balance at Mar. 31, 2024	1,186.2	0.3	362.4	(93.3)	1,069.6	(155.4)	2.6
Net income	31.2				31.2
Dividend paid	(19.0)				(19.0)
Changes in cumulative translation adjustment, net of tax	(5.3)					(5.3)
Share of net income	0.7						0.7
Treasury stock reissued	0.2		0.0	0.2
Treasury stock repurchased	(0.3)			(0.3)
Stock option compensation	2.1		2.1
Amortization of prior service cost, net of tax	0.1					0.1
Ending Balance at Jun. 30, 2024	$ 1,195.9	$ 0.3	$ 364.5	$ (93.4)	$ 1,081.8	$ (160.6)	$ 3.3

Condensed Consolidated Statements of Equity (Parenthetical) (Unaudited) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Stockholders' Equity [Abstract]
Dividend paid, per share	$ 0.76	$ 0.69	$ 0.76	$ 0.69

Basis of Presentation

6 Months Ended

Jun. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

NOTE 1 – BASIS OF PRESENTATION

The results for the interim period covered by this report are not necessarily indicative of the results to be expected for the full year.

Segment Reporting

6 Months Ended

Jun. 30, 2024

Segment Reporting [Abstract]

Segment Reporting

NOTE 2 – SEGMENT REPORTING

The Company reports its financial performance based on three reportable segments, which are Performance Chemicals, Fuel Specialties and Oilfield Services.

The Company evaluates the performance of its segments based on operating income. The following table analyzes sales and other financial information by the Company’s reportable segments:


	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2024			2023			2024			2023
Net Sales:
Personal Care	$	97.7		$	78.6		$	192.5		$	166.8
Home Care		24.3			19.7			50.7			43.4
Other		38.1			29.5			77.7			69.0
Performance Chemicals		160.1			127.8			320.9			279.2
Refinery and Performance		109.1			119.1			254.2			268.6
Other		57.5			35.1			89.3			75.9
Fuel Specialties		166.6			154.2			343.5			344.5
Oilfield Services		108.3			198.4			270.8			366.3
	$	435.0		$	480.4		$	935.2		$	990.0
Operating income/(loss):
Performance Chemicals	$	21.2		$	9.2		$	42.3		$	19.6
Fuel Specialties		30.4			17.1			63.8			49.5
Oilfield Services		7.3			28.0			24.2			43.9
Corporate costs		(17.6	)		(20.1	)		(37.8	)		(37.8	)
Adjustment to fair value of contingent consideration		(0.6	)		—			(1.4	)		—
Profit on disposal of property, plant and equipment		—			—			0.1			—
Total operating income	$	40.7		$	34.2		$	91.2		$	75.2

Earnings Per Share

6 Months Ended

Jun. 30, 2024

Earnings Per Share [Abstract]

Earnings per Share

NOTE 3 – EARNINGS PER SHARE


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Numerator (in millions):
Net income available to common stockholders	$	31.2	$	28.9	$	72.6	$	62.1
Denominator (in thousands):
Weighted average common shares outstanding		24,937		24,868		24,918		24,835
Dilutive effect of stock options and awards		160		112		173		175
Denominator for diluted earnings per share		25,097		24,980		25,091		25,010
Net income per share, basic:	$	1.25	$	1.16	$	2.91	$	2.50
Net income per share, diluted:	$	1.24	$	1.16	$	2.89	$	2.48

Goodwill

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

NOTE 4 – GOODWILL

The following table summarizes the goodwill movements in the year:


(in millions)	Gross Cost
Opening balance at January 1, 2024	$	399.3
Adjustments		(3.4	)
Exchange effect		(7.7	)
Closing balance at June 30, 2024	$	388.2

The exchange effect for the six months ended June 30, 2024 was $7.7 million relating to our Performance Chemicals segment.

Other Intangible Assets

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Other Intangible Assets

NOTE 5 – OTHER INTANGIBLE ASSETS

The following table analyzes other intangible assets movements in the year:


(in millions)	2024
Gross cost at January 1	$	315.1
Additions		11.5
Exchange effect		(2.6	)
Gross cost at June 30		324.0
Accumulated amortization at January 1		(257.8	)
Amortization expense		(6.0	)
Exchange effect		1.2
Accumulated amortization at June 30		(262.6	)
Net book amount at June 30	$	61.4

The amortization expense for the six months ended June 30, 2024 was $6.0 million (six months ended June 30, 2023 – $5.3 million).

Pension and Post-Employment Benefits

6 Months Ended

Jun. 30, 2024

Retirement Benefits [Abstract]

Pension and Post-Employment Benefits

NOTE 6 – PENSION AND POST EMPLOYMENT BENEFITS

The net periodic benefit of these plans is shown in the following table:


	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2024			2023			2024			2023
Service cost	$	(0.9	)	$	(0.9	)	$	(1.7	)	$	(1.8	)
Interest cost on projected benefit obligation		(4.6	)		(5.0	)		(9.3	)		(9.9	)
Expected return on plan assets		6.4			6.3			12.8			12.5
Amortization of prior service cost		(0.2	)		(0.1	)		(0.3	)		(0.2	)
Amortization of actuarial net gains/(losses)		—			0.5			0.1			1.0
Net periodic benefit	$	0.7		$	0.8		$	1.6		$	1.6

Income Taxes

6 Months Ended

Jun. 30, 2024

Income Tax Disclosure [Abstract]

Income Taxes

NOTE 7 – INCOME TAXES

A roll-forward of unrecognized tax benefits and associated accrued interest and penalties is as follows:


(in millions)	Unrecognized Tax Benefits			Interest and Penalties			Total
Opening balance at January 1, 2024	$	10.5		$	4.3		$	14.8
Increase for tax positions of prior periods		—			0.5			0.5
Decrease for settlement of tax positions		(2.3	)		(1.1	)		(3.4	)
Closing balance at June 30, 2024		8.2			3.7			11.9
Current		(1.0	)		(0.2	)		(1.2	)
Non-current	$	7.2		$	3.5		$	10.7

All of the $11.9 million of unrecognized tax benefits, interest and penalties would impact our effective tax rate if recognized.

Long-Term Debt

6 Months Ended

Jun. 30, 2024

Debt Disclosure [Abstract]

Long-Term Debt

NOTE 8 – LONG-TERM DEBT

Plant Closure Provisions

6 Months Ended

Jun. 30, 2024

Restructuring and Related Activities [Abstract]

Plant Closure Provisions

NOTE 9 – PLANT CLOSURE PROVISIONS

Movements in the provisions are summarized as follows:


(in millions)	2024
Total at January 1	$	61.6
Charge for the period		1.7
Utilized in the period		(1.8	)
Exchange effect		(0.4	)
Total at June 30		61.1
Due within one year		(4.6	)
Due after one year	$	56.5

Fair Value Measurements

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurements

NOTE 10 – FAIR VALUE MEASUREMENTS

The following table presents the carrying amount and fair values of the Company’s financial assets and liabilities measured on a recurring basis:


	June 30, 2024				December 31, 2023
(in millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets
Derivatives (Level 1 measurement):
Other current and non-current assets:
Emissions Trading Scheme credits		4.7		4.7		4.8		4.8
Foreign currency forward exchange contracts		0.5		0.5		—		—
Liabilities
Derivatives (Level 1 measurement):
Other current and non-current liabilities:
Foreign currency forward exchange contracts		—		—		1.0		1.0
Non-financial liabilities (Level 3 measurement):
Acquisition-related contingent consideration		20.2		20.2		23.4		23.4

The following methods and assumptions were used to estimate the fair values:

Emissions Trading Scheme credits: The fair value is determined by the open market pricing at the end of the reporting period.

Derivative Instruments and Risk Management

6 Months Ended

Jun. 30, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments and Risk Management

NOTE 11 – DERIVATIVE INSTRUMENTS AND RISK MANAGEMENT

Contingencies

6 Months Ended

Jun. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

Contingencies

NOTE 12 – CONTINGENCIES

Legal matters

Guarantees

Stock-Based Compensation Plans

6 Months Ended

Jun. 30, 2024

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation Plans

NOTE 13 – STOCK-BASED COMPENSATION PLANS

The following table summarizes the transactions of the Company’s share-based compensation plans for the six months ended June 30, 2024.


	Number of shares			Weighted Average Grant-Date Fair Value
Nonvested at December 31, 2023		652,891		$	75.2
Granted		136,667		$	130.5
Vested		(178,495	)	$	86.7
Forfeited		(12,062	)	$	82.7
Nonvested at June 30, 2024		599,001		$	84.2

Reclassifications out of Accumulated Other Comprehensive Loss

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Reclassifications out of Accumulated Other Comprehensive Loss

NOTE 14 – RECLASSIFICATIONS OUT OF ACCUMULATED OTHER COMPREHENSIVE LOSS

Reclassifications out of accumulated other comprehensive loss (“AOCL”) for the first six months of 2024 were:


(in millions) Details about AOCL Components	Amount Reclassified from AOCL			Affected Line Item in the Statement where Net Income is Presented
Defined benefit pension plan items:
Amortization of prior service cost	$	0.3		See (1) below
Amortization of actuarial net gains		(0.1	)	See (1) below
		0.2		Total before tax
		(0.1	)	Income tax expense
Total reclassifications	$	0.1		Net of tax

(1)

These items are included in other income and expense. See Note 6 of the Notes to the Condensed Consolidated Financial Statements for additional information.

Changes in AOCL for the first six months of 2024, net of tax, were:


(in millions)	Defined Benefit Pension Plan Items			Cumulative Translation Adjustments			Total
Balance at December 31, 2023	$	(77.2	)	$	(70.9	)	$	(148.1	)
Other comprehensive income/(loss) before reclassifications		—			(12.6	)		(12.6	)
Amounts reclassified from AOCL		0.1			—			0.1
Total other comprehensive income/(loss)		0.1			(12.6	)		(12.5	)
Balance at June 30, 2024	$	(77.1	)	$	(83.5	)	$	(160.6	)

Reclassifications out of AOCL for the first six months of 2023 were:


(in millions) Details about AOCL Components	Amount Reclassified from AOCL			Affected Line Item in the Statement where Net Income is Presented
Defined benefit pension plan items:
Amortization of prior service cost	$	0.2		See (1) below
Amortization of actuarial net gains		(1.0	)	See (1) below
		(0.8	)	Total before tax
		0.2		Income tax expense
Total reclassifications	$	(0.6	)	Net of tax

(1)

These items are included in other income and expense. See Note 6 of the Notes to the Condensed Consolidated Financial Statements for additional information.

Changes in AOCL for the first six months of 2023, net of tax, were:


(in millions)	Defined Benefit Pension Plan Items			Cumulative Translation Adjustments			Total
Balance at December 31, 2022	$	(58.4	)	$	(86.8	)	$	(145.2	)
Other comprehensive income/(loss) before reclassifications		—			6.1			6.1
Amounts reclassified from AOCL		(0.6	)		—			(0.6	)
Total other comprehensive income/(loss)		(0.6	)		6.1			5.5
Balance at June 30, 2023	$	(59.0	)	$	(80.7	)	$	(139.7	)

Recently Issued Accounting Pronouncements

6 Months Ended

Jun. 30, 2024

Accounting Changes and Error Corrections [Abstract]

Recently Issued Accounting Pronouncements

NOTE 15 – RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS

The Company has reviewed recently issued accounting pronouncements and concluded there were no matters relevant to the Company’s financial statements.

Related Party Transactions

6 Months Ended

Jun. 30, 2024

Related Party Transactions

NOTE 16 – RELATED PARTY TRANSACTIONS

Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2024

Segment Reporting [Abstract]

Segment Reporting

The Company evaluates the performance of its segments based on operating income. The following table analyzes sales and other financial information by the Company’s reportable segments:


	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2024			2023			2024			2023
Net Sales:
Personal Care	$	97.7		$	78.6		$	192.5		$	166.8
Home Care		24.3			19.7			50.7			43.4
Other		38.1			29.5			77.7			69.0
Performance Chemicals		160.1			127.8			320.9			279.2
Refinery and Performance		109.1			119.1			254.2			268.6
Other		57.5			35.1			89.3			75.9
Fuel Specialties		166.6			154.2			343.5			344.5
Oilfield Services		108.3			198.4			270.8			366.3
	$	435.0		$	480.4		$	935.2		$	990.0
Operating income/(loss):
Performance Chemicals	$	21.2		$	9.2		$	42.3		$	19.6
Fuel Specialties		30.4			17.1			63.8			49.5
Oilfield Services		7.3			28.0			24.2			43.9
Corporate costs		(17.6	)		(20.1	)		(37.8	)		(37.8	)
Adjustment to fair value of contingent consideration		(0.6	)		—			(1.4	)		—
Profit on disposal of property, plant and equipment		—			—			0.1			—
Total operating income	$	40.7		$	34.2		$	91.2		$	75.2

Earnings per Share (Tables)

6 Months Ended

Jun. 30, 2024

Earnings Per Share [Abstract]

Summary of Earnings Per Share


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Numerator (in millions):
Net income available to common stockholders	$	31.2	$	28.9	$	72.6	$	62.1
Denominator (in thousands):
Weighted average common shares outstanding		24,937		24,868		24,918		24,835
Dilutive effect of stock options and awards		160		112		173		175
Denominator for diluted earnings per share		25,097		24,980		25,091		25,010
Net income per share, basic:	$	1.25	$	1.16	$	2.91	$	2.50
Net income per share, diluted:	$	1.24	$	1.16	$	2.89	$	2.48

Goodwill (Tables)

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Goodwill

The following table summarizes the goodwill movements in the year:


(in millions)	Gross Cost
Opening balance at January 1, 2024	$	399.3
Adjustments		(3.4	)
Exchange effect		(7.7	)
Closing balance at June 30, 2024	$	388.2

Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Other Intangible Assets

The following table analyzes other intangible assets movements in the year:


(in millions)	2024
Gross cost at January 1	$	315.1
Additions		11.5
Exchange effect		(2.6	)
Gross cost at June 30		324.0
Accumulated amortization at January 1		(257.8	)
Amortization expense		(6.0	)
Exchange effect		1.2
Accumulated amortization at June 30		(262.6	)
Net book amount at June 30	$	61.4

Pension and Post-Employment Benefits (Tables)

6 Months Ended

Jun. 30, 2024

Plan Net Pension Credit

The net periodic benefit of these plans is shown in the following table:


	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2024			2023			2024			2023
Service cost	$	(0.9	)	$	(0.9	)	$	(1.7	)	$	(1.8	)
Interest cost on projected benefit obligation		(4.6	)		(5.0	)		(9.3	)		(9.9	)
Expected return on plan assets		6.4			6.3			12.8			12.5
Amortization of prior service cost		(0.2	)		(0.1	)		(0.3	)		(0.2	)
Amortization of actuarial net gains/(losses)		—			0.5			0.1			1.0
Net periodic benefit	$	0.7		$	0.8		$	1.6		$	1.6

Income Taxes (Tables)

6 Months Ended

Jun. 30, 2024

Income Tax Disclosure [Abstract]

Roll-forward of Unrecognized Tax Benefits and Associated Accrued Interest and Penalties

A roll-forward of unrecognized tax benefits and associated accrued interest and penalties is as follows:


(in millions)	Unrecognized Tax Benefits			Interest and Penalties			Total
Opening balance at January 1, 2024	$	10.5		$	4.3		$	14.8
Increase for tax positions of prior periods		—			0.5			0.5
Decrease for settlement of tax positions		(2.3	)		(1.1	)		(3.4	)
Closing balance at June 30, 2024		8.2			3.7			11.9
Current		(1.0	)		(0.2	)		(1.2	)
Non-current	$	7.2		$	3.5		$	10.7

Plant Closure Provisions (Tables)

6 Months Ended

Jun. 30, 2024

Restructuring and Related Activities [Abstract]

Movements in Plant Closure and Restructuring Provisions

Movements in the provisions are summarized as follows:


(in millions)	2024
Total at January 1	$	61.6
Charge for the period		1.7
Utilized in the period		(1.8	)
Exchange effect		(0.4	)
Total at June 30		61.1
Due within one year		(4.6	)
Due after one year	$	56.5

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Carrying Amount and Fair Values of the Company's Assets and Liabilities Measured on a Recurring Basis

The following table presents the carrying amount and fair values of the Company’s financial assets and liabilities measured on a recurring basis:


	June 30, 2024				December 31, 2023
(in millions)	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets
Derivatives (Level 1 measurement):
Other current and non-current assets:
Emissions Trading Scheme credits		4.7		4.7		4.8		4.8
Foreign currency forward exchange contracts		0.5		0.5		—		—
Liabilities
Derivatives (Level 1 measurement):
Other current and non-current liabilities:
Foreign currency forward exchange contracts		—		—		1.0		1.0
Non-financial liabilities (Level 3 measurement):
Acquisition-related contingent consideration		20.2		20.2		23.4		23.4

Stock-Based Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2024

Summary of Transactions of the Share Based Compensation Plans

The following table summarizes the transactions of the Company’s share-based compensation plans for the six months ended June 30, 2024.


	Number of shares			Weighted Average Grant-Date Fair Value
Nonvested at December 31, 2023		652,891		$	75.2
Granted		136,667		$	130.5
Vested		(178,495	)	$	86.7
Forfeited		(12,062	)	$	82.7
Nonvested at June 30, 2024		599,001		$	84.2

Reclassifications out of Accumulated Other Comprehensive Loss (Tables)

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Summary of Reclassifications Out of Accumulated Other Comprehensive Loss

Reclassifications out of accumulated other comprehensive loss (“AOCL”) for the first six months of 2024 were:


(in millions) Details about AOCL Components	Amount Reclassified from AOCL			Affected Line Item in the Statement where Net Income is Presented
Defined benefit pension plan items:
Amortization of prior service cost	$	0.3		See (1) below
Amortization of actuarial net gains		(0.1	)	See (1) below
		0.2		Total before tax
		(0.1	)	Income tax expense
Total reclassifications	$	0.1		Net of tax

(1)

These items are included in other income and expense. See Note 6 of the Notes to the Condensed Consolidated Financial Statements for additional information.

Reclassifications out of AOCL for the first six months of 2023 were:


(in millions) Details about AOCL Components	Amount Reclassified from AOCL			Affected Line Item in the Statement where Net Income is Presented
Defined benefit pension plan items:
Amortization of prior service cost	$	0.2		See (1) below
Amortization of actuarial net gains		(1.0	)	See (1) below
		(0.8	)	Total before tax
		0.2		Income tax expense
Total reclassifications	$	(0.6	)	Net of tax

(1)

These items are included in other income and expense. See Note 6 of the Notes to the Condensed Consolidated Financial Statements for additional information.

Changes in Accumulated Other Comprehensive Loss

Changes in AOCL for the first six months of 2024, net of tax, were:


(in millions)	Defined Benefit Pension Plan Items			Cumulative Translation Adjustments			Total
Balance at December 31, 2023	$	(77.2	)	$	(70.9	)	$	(148.1	)
Other comprehensive income/(loss) before reclassifications		—			(12.6	)		(12.6	)
Amounts reclassified from AOCL		0.1			—			0.1
Total other comprehensive income/(loss)		0.1			(12.6	)		(12.5	)
Balance at June 30, 2024	$	(77.1	)	$	(83.5	)	$	(160.6	)

Changes in AOCL for the first six months of 2023, net of tax, were:


(in millions)	Defined Benefit Pension Plan Items			Cumulative Translation Adjustments			Total
Balance at December 31, 2022	$	(58.4	)	$	(86.8	)	$	(145.2	)
Other comprehensive income/(loss) before reclassifications		—			6.1			6.1
Amounts reclassified from AOCL		(0.6	)		—			(0.6	)
Total other comprehensive income/(loss)		(0.6	)		6.1			5.5
Balance at June 30, 2023	$	(59.0	)	$	(80.7	)	$	(139.7	)

Segment Reporting - Segment Reporting (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Net sales	$ 435.0	$ 480.4	$ 935.2	$ 990.0
Adjustment to fair value of contingent consideration	(0.6)	0.0	(1.4)	0.0
Profit on disposal of property, plant and equipment	0.0	0.0	0.1	0.0
Operating income/(loss)	40.7	34.2	91.2	75.2
Operating Segments [Member]
Segment Reporting Information [Line Items]
Adjustment to fair value of contingent consideration	(0.6)	0.0	(1.4)	0.0
Profit on disposal of property, plant and equipment	0.0	0.0	0.1	0.0
Operating Segments [Member] \| Performance Chemicals [Member]
Segment Reporting Information [Line Items]
Net sales	160.1	127.8	320.9	279.2
Operating income/(loss)	21.2	9.2	42.3	19.6
Operating Segments [Member] \| Fuel Specialties [Member]
Segment Reporting Information [Line Items]
Net sales	166.6	154.2	343.5	344.5
Operating income/(loss)	30.4	17.1	63.8	49.5
Operating Segments [Member] \| Oilfield Services [Member]
Segment Reporting Information [Line Items]
Net sales	108.3	198.4	270.8	366.3
Operating income/(loss)	7.3	28.0	24.2	43.9
Operating Segments [Member] \| Personal Care [Member] \| Performance Chemicals [Member]
Segment Reporting Information [Line Items]
Net sales	97.7	78.6	192.5	166.8
Operating Segments [Member] \| Home Care [Member] \| Performance Chemicals [Member]
Segment Reporting Information [Line Items]
Net sales	24.3	19.7	50.7	43.4
Operating Segments [Member] \| Other [Member] \| Performance Chemicals [Member]
Segment Reporting Information [Line Items]
Net sales	38.1	29.5	77.7	69.0
Operating Segments [Member] \| Refinery and Performance [Member] \| Fuel Specialties [Member]
Segment Reporting Information [Line Items]
Net sales	109.1	119.1	254.2	268.6
Operating Segments [Member] \| Other [Member] \| Fuel Specialties [Member]
Segment Reporting Information [Line Items]
Net sales	57.5	35.1	89.3	75.9
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Corporate costs	$ (17.6)	$ (20.1)	$ (37.8)	$ (37.8)

Earnings Per Share - Additional Information (Detail) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Average number of anti-dilutive options excluded from the calculation of diluted earnings per share	10,436	31,048	10,483	36,178

Earnings Per Share - Summary of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator (in millions):
Net income available to common stockholders	$ 31.2	$ 28.9	$ 72.6	$ 62.1
Denominator (in thousands):
Weighted average common shares outstanding	24,937	24,868	24,918	24,835
Dilutive effect of stock options and awards	160	112	173	175
Denominator for diluted earnings per share	25,097	24,980	25,091	25,010
Net income per share, basic:	$ 1.25	$ 1.16	$ 2.91	$ 2.5
Net income per share, diluted:	$ 1.24	$ 1.16	$ 2.89	$ 2.48

Goodwill - Summary of Goodwill (Detail) $ in Millions	6 Months Ended
Goodwill - Summary of Goodwill (Detail) $ in Millions	Jun. 30, 2024 USD ($)
Goodwill [Line Items]
Gross cost, beginning balance	$ 399.3
Adjustments	(3.4)
Exchange effect	(7.7)
Gross cost, ending balance	$ 388.2

Goodwill - Additional Information (Detail) $ in Millions	6 Months Ended
Goodwill - Additional Information (Detail) $ in Millions	Jun. 30, 2024 USD ($)
Goodwill [Line Items]
Goodwill, foreign currency translation gain (loss)	$ 7.7
Increase in fair value of net assets	(3.4)
QGP Quimica Geral [Member]
Goodwill [Line Items]
Increase in fair value of net assets	3.4
Performance Chemicals [Member]
Goodwill [Line Items]
Goodwill, foreign currency translation gain (loss)	$ 7.7

Other Intangible Assets - Summary of Other Intangible Assets (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Gross cost at January 1	$ 315.1
Additions	11.5
Exchange effect	(2.6)
Gross cost at June 30	324.0		$ 315.1
Accumulated amortization at January 1	(257.8)
Amortization expense	(6.0)	$ (5.3)
Exchange effect	1.2
Accumulated amortization at June 30	(262.6)
Other intangible assets	$ 61.4		$ 57.3

Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 6.0	$ 5.3
Finite-Lived Intangible Assets, Purchase Accounting Adjustments	11.5
Intangible asset capitalized	11.5
Software Development [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Purchase Accounting Adjustments	8.0
Intangible asset capitalized	8.0
QGP Quimica Geral [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Purchase Accounting Adjustments	3.5
Intangible asset capitalized	$ 3.5
Finite-Lived Intangible Asset, Useful Life	7 years		10 years

Pension and Post-Employment Benefits - Plan Net Pension Credit (Detail) - GERMANY - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ (0.9)	$ (0.9)	$ (1.7)	$ (1.8)
Interest cost on projected benefit obligation	(4.6)	(5.0)	(9.3)	(9.9)
Expected return on plan assets	6.4	6.3	12.8	12.5
Amortization of prior service cost	(0.2)	(0.1)	(0.3)	(0.2)
Amortization of actuarial net gains/(losses)	0.0	0.5	0.1	1.0
Net periodic benefit	$ 0.7	$ 0.8	$ 1.6	$ 1.6

Pension and Post-Employment Benefits - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Europe [Member]
Defined Benefit Plan Disclosure [Line Items]
Post-employment obligations European businesses	$ 3.9	$ 4.2

Income Taxes - Roll-forward of Unrecognized Tax Benefits and Associated Accrued Interest and Penalties (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Income Tax Contingency [Line Items]
Opening balance at January 1	$ 14.8
Increase for tax positions of prior periods	0.5
Decrease for settlement of tax positions	(3.4)
Closing balance at June 30	11.9
Current	(1.2)	$ (1.2)
Non-current	10.7	$ 13.6
Interest and Penalties [Member]
Income Tax Contingency [Line Items]
Opening balance at January 1	4.3
Increase for tax positions of prior periods	0.5
Decrease for settlement of tax positions	(1.1)
Closing balance at June 30	3.7
Current	(0.2)
Non-current	3.5
Unrecognized Tax Benefits [Member]
Income Tax Contingency [Line Items]
Opening balance at January 1	10.5
Increase for tax positions of prior periods	0.0
Decrease for settlement of tax positions	(2.3)
Closing balance at June 30	8.2
Current	(1.0)
Non-current	$ 7.2

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Income Tax Contingency [Line Items]
Unrecognized tax benefits would impact effective tax rate if recognized	$ 11.9
Unrecognized tax benefit	11.9	$ 14.8
Increase to income tax expense	0.5
Italian Tax Authorities [Member]
Income Tax Contingency [Line Items]
Unrecognized tax benefit	3.4
United Kingdom [Member] \| Foreign [Member] \| Profit Diversion Compliance Facility [Member]
Income Tax Contingency [Line Items]
Income tax examination penalties and interest expenses	1.2
Decrease in uncertain tax positions	1.2
United States [Member]
Income Tax Contingency [Line Items]
Unrecognized tax benefit	$ 10.7
Non-US [Member]
Income Tax Contingency [Line Items]
Open tax year	2011 2012 2013 2014
Non-US [Member] \| Historical Impairment Of Subsidiaries [Member]
Income Tax Contingency [Line Items]
Decrease in uncertain tax positions	$ 10.7

Long-Term Debt - Additional Information (Detail) - USD ($) $ in Millions		6 Months Ended
	May 20, 2024	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Debt Instrument [Line Items]
Deferred finance costs, net		$ 1.4		$ 1.2
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Due date of revolving credit	May 31, 2028	May 30, 2027
Line of credit facility, maximum borrowing capacity		$ 250.0
Line Of Credit Facility Cumulative Drawn Down		0.0		$ 0.0
Repayment on credit facility		0.0	$ 0.0
Revolving Credit Facility [Member] \| Accordion Feature [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 125.0

Plant Closure Provisions - Movements in Plant Closure and Restructuring Provisions (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Restructuring and Related Activities [Abstract]
Beginning Balance	$ 61.6
Charge for the period	1.7
Utilized in the period	(1.8)
Exchange effect	(0.4)
Ending Balance	61.1
Due within one year	(4.6)	$ (4.6)
Due after one year	$ 56.5	$ 57.0

Plant Closure Provisions - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Remediation [Member]
Restructuring Cost and Reserve [Line Items]
Accretion expense recognized	$ 1.7	$ 1.9

Fair Value Measurements - Carrying Amount and Fair Values of the Company's Assets and Liabilities Measured on a Recurring Basis (Detail) - Recurring [Member] - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Carrying Amount [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Foreign Currency Forward Exchange Contracts [Member]
Derivatives (Level 1 measurement):
Derivatives asset	$ 0.5	$ 0.0
Derivatives (Level 1 measurement):
Foreign currency forward exchange contracts	0.0	1.0
Carrying Amount [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Emission Trading Scheme Credits [Member]
Derivatives (Level 1 measurement):
Derivatives asset	4.7	4.8
Carrying Amount [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Non-financial liabilities (Level 3 measurement):
Acquisition-related contingent consideration	20.2	23.4
Fair Value [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Foreign Currency Forward Exchange Contracts [Member]
Derivatives (Level 1 measurement):
Derivatives asset	0.5	0.0
Derivatives (Level 1 measurement):
Foreign currency forward exchange contracts	0.0	1.0
Fair Value [Member] \| Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Emission Trading Scheme Credits [Member]
Derivatives (Level 1 measurement):
Derivatives asset	4.7	4.8
Fair Value [Member] \| Significant Unobservable Inputs (Level 3) [Member]
Non-financial liabilities (Level 3 measurement):
Acquisition-related contingent consideration	$ 20.2	$ 23.4

Derivative Instruments and Risk Management - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Not Designated as Hedging Instrument [Member] \| Foreign Currency Forward Exchange Contracts [Member] \| Other net income/(expense) [Member]
Derivative [Line Items]
Amount of gain/(loss) recognized in income	$ 1.6	$ (1.6)

Contingencies - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Other Commitments [Line Items]
Guarantees	$ 6.9	$ 6.2
Maximum [Member]
Other Commitments [Line Items]
Fixed maturity guarantee remaining term	8 years

Stock-Based Compensation Plans - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option compensation			$ 4.2	$ 3.9
Maximum percentage of stock options granted					130.00%
Total compensation cost related to non-vested stock options not yet recognized	$ 28.8		$ 28.8
Expected compensation cost recognized over the weighted-average period			2 years 1 month 6 days
Stock Options Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option compensation	2.2	$ 2.0	$ 4.2	3.9
Stock Equivalent Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 1.5	$ 1.9	$ 4.0	$ 5.1

Stock-Based Compensation Plans - Summary of Transactions of the Share Based Compensation Plans (Detail)	6 Months Ended
	Jun. 30, 2024 $ / shares shares
Share-Based Payment Arrangement, Disclosure [Abstract]
Number of shares, Begining balance \| shares	652,891
Number of shares, Granted \| shares	136,667
Number of shares, Vested \| shares	(178,495)
Number of shares, Forfeited \| shares	(12,062)
Number of shares , Ending balance \| shares	599,001
Weighted Average Grant-Date Fair Value , Begining balance \| $ / shares	$ 75.2
Weighted Average Grant-Date Fair Value, Granted \| $ / shares	130.5
Weighted Average Grant-Date Fair Value, Vested \| $ / shares	86.7
Weighted Average Grant-Date Fair Value, Forfeited \| $ / shares	82.7
Weighted Average Grant-Date Fair Value, Ending balance \| $ / shares	$ 84.2

Reclassifications out of Accumulated Other Comprehensive Loss - Summary of Reclassifications out of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of prior service cost	$ 0.2	$ 0.1	$ 0.3	$ 0.2
Amortization of actuarial net gains	$ 0.0	$ 0.5	0.1	1.0
Total reclassifications			(0.1)	0.6
Defined Benefit Pension Plan Items [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications			(0.1)	0.6
Reclassification Out of Accumulated Other Comprehensive Income/(Loss) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax			0.2	(0.8)
Income tax expense			(0.1)	0.2
Total reclassifications			0.1	(0.6)
Reclassification Out of Accumulated Other Comprehensive Income/(Loss) [Member] \| Defined Benefit Pension Plan Items [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of prior service cost			0.3	0.2
Amortization of actuarial net gains			$ (0.1)	$ (1.0)

Reclassifications out of Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 1,147.1
Other comprehensive income before reclassifications	(12.6)	$ 6.1
Amounts reclassified from AOCL	0.1	(0.6)
Total other comprehensive income/(loss)	(12.5)	5.5
Ending Balance	1,192.6
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(148.1)	(145.2)
Ending Balance	(160.6)	(139.7)
Defined Benefit Pension Plan Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(77.2)	(58.4)
Other comprehensive income before reclassifications	0.0	0.0
Amounts reclassified from AOCL	0.1	(0.6)
Total other comprehensive income/(loss)	0.1	(0.6)
Ending Balance	(77.1)	(59.0)
Foreign Currency Translation Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(70.9)	(86.8)
Other comprehensive income before reclassifications	(12.6)	6.1
Amounts reclassified from AOCL	0.0	0.0
Total other comprehensive income/(loss)	(12.6)	6.1
Ending Balance	$ (83.5)	$ (80.7)

Related Party Transactions - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Smith, Gambrell & Russell, LLP [Member]
Related Party Transaction [Line Items]
Fees incured from Smith, Gambrell & Russell	$ 200,000	$ 200,000
Other Liabilities		0	$ 0
European Metal Recycling Limited [Member]
Related Party Transaction [Line Items]
Other Liabilities			0
Tendering process to select best buyer of scrap metal		100,000
European Metal Recycling Limited [Member] \| Maximum [Member]
Related Party Transaction [Line Items]
Other Liabilities	100,000
Tendering process to select best buyer of scrap metal	100,000
Advan Six [Member]
Related Party Transaction [Line Items]
Other Liabilities	0		$ 0
Tendering process to select best buyer of scrap metal	$ 0	$ 200,000