First Half Net Income of $252 million and Earnings per Share of $27.14
First Half Segment Operating Profit of $319 million
Strong First Half Cash Flow

NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer, Thomas E. Gottwald, released the following earnings report of the Company’s operations for the second quarter and first half of 2026.

Net income for the second quarter of 2026 was $133.8 million, or $14.54 per share, compared to net income of $111.2 million, or $11.84 per share, for the second quarter of 2025. For the first half of 2026, net income was $251.8 million, or $27.14 per share, compared to $237.2 million, or $25.11 per share, for the same period in 2025.

Petroleum additives sales for the second quarter of 2026 were $675.6 million, compared to $653.9 million for the same period in 2025. Petroleum additives operating profit for the second quarter of 2026 was $149.4 million, compared to $139.8 million for the second quarter of 2025. Petroleum additives operating profit increased due to surcharges implemented in response to higher costs incurred due to the supply chain disruptions in the Middle East. These actions, together with our continued focus on operational efficiency, resulted in improved operating profit during the quarter.

Petroleum additives sales were $1.3 billion for both the first half of 2026 and 2025. Petroleum additives operating profit for the first half of 2026 was $284.4 million, compared to $281.9 million in the same period last year.

Specialty materials sales were $67.2 million for the second quarter of 2026, compared to $42.0 million for the second quarter of 2025. Specialty materials operating profit was $22.3 million for the second quarter of 2026, compared to operating profit of $10.5 million for the second quarter of 2025. The 2025 period excludes Calca's results as the acquisition was completed on October 1, 2025. As previously stated, we expect variation in quarterly results for the specialty materials segment on an ongoing basis due to the nature of its business.

Specialty materials sales were $125.3 million for the first half of 2026, compared to $95.8 million for the first half of 2025. Specialty materials operating profit was $34.8 million for the first half of 2026, compared to $33.7 million in the same period last year.

We are especially pleased with the performance of our Specialty Materials segment and we are also excited about our investments to expand production capacity for both ammonium perchlorates and high purity hydrazine to support the domestic production of critical aerospace and defense chemicals. We expect to see this additional capacity come online towards the end of 2026.

Our operations generated solid cash flow during the first half of 2026. We funded capital expenditures of $51.7 million, paid dividends of $55.6 million, and repurchased over 200 thousand shares of common stock for $126.4 million, while reducing our Net Debt to EBITDA ratio to 1.0x. The cash flow generated by operations enables us to continue to provide value to our customers and shareholders through reinvestment in our businesses for growth and efficiency, acquisitions, dividends and share repurchases.

We continue to monitor the impact of the conflict in the Middle East, the uncertain macroeconomic environment, and the changes in international trade relations and tariffs. Within petroleum additives, the surcharges and operational actions implemented earlier this year to address higher raw materials, utility, and logistics costs remain in place, and we continue to evaluate and adjust our approach as market conditions evolve. While the operating environment remains dynamic, we believe these actions position us well to continue delivering solid results.

We are pleased with the performance of both our petroleum additives and specialty materials segments during the first half of 2026. We will continue to invest in technology to serve our customers, focus on cost control and margin management, and advance our initiatives to strengthen our global manufacturing network to enable more efficient product delivery to our customers in the years ahead.

Our dedicated team makes decisions to promote long-term value for our shareholders and customers, and remains focused on our long-term objectives. We believe the fundamentals of how we run our business - a long-term view, safety-first culture, customer-focused solutions, technology-driven product offerings, and world-class supply chain capability - will continue to benefit all our stakeholders.

Sincerely,

Thomas E. Gottwald

The petroleum additives segment consists of the North America (the United States and Canada), Latin America (Mexico, Central America, and South America), Asia Pacific, and Europe/Middle East/Africa/India (Europe or EMEAI) regions. The specialty materials segment operates primarily in North America.

The Company has disclosed the non-GAAP financial measures EBITDA, Net Debt, and Net Debt to EBITDA, as well as the related calculations in the schedules included with this earnings release. EBITDA is defined as income from continuing operations before the deduction of interest and financing expenses, net, income taxes, depreciation (on property, plant, and equipment) and amortization (on intangible assets and lease right-of-use assets). Net Debt is defined as long-term debt, including current maturities, less cash and cash equivalents. Net Debt to EBITDA is defined as Net Debt divided by EBITDA for the rolling four quarters ended as of the specified date. The Company believes that even though these items are not required by or presented in accordance with United States generally accepted accounting principles (GAAP), these additional measures enhance understanding of the Company’s performance and period to period comparability. The Company believes that these items should not be considered an alternative to our results determined under GAAP.

As a reminder, a conference call and webcast is scheduled for 3:00 p.m. ET on Thursday, July 30, 2026, to review second quarter 2026 financial results. You can access the conference call live by dialing 1-888-506-0062 (domestic) or 1-973-528-0011 (international) and requesting the NewMarket conference call or using the participant access code 726865. To avoid delays, callers should dial in five minutes early. A teleconference replay of the call will be available until Thursday, August 13, 2026 at 3:00 p.m. ET by dialing 1-877-481-4010 (domestic) or 1-919-882-2331 (international). The replay passcode is 54208. The call will also be broadcast via the internet and can be accessed through the Company's website at www.NewMarket.com or https://www.webcaster5.com/Webcast/Page/2001/54208. A webcast replay will be available for 30 days.

NewMarket Corporation is a holding company operating through its subsidiaries, Afton Chemical Corporation (Afton), Ethyl Corporation (Ethyl), American Pacific Corporation (AMPAC), and Calca Solutions, LLC (Calca). The Afton and Ethyl companies develop, manufacture, blend, and deliver chemical additives that enhance the performance of petroleum products. AMPAC is a manufacturer of specialty materials primarily used in solid rocket motors for the aerospace and defense industries. Calca is the nation’s leading producer of Ultra Pure and high-purity hydrazine – essential, mission-critical propellants that enable advanced aerospace and defense applications. The NewMarket family of companies has a long-term commitment to its people, to safety, to providing innovative solutions for its customers, and to making the world a better place.

Some of the information contained in this press release constitutes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Although NewMarket’s management believes its expectations are based on reasonable assumptions within the bounds of its knowledge of its business and operations, there can be no assurance that actual results will not differ materially from expectations.

Factors that could cause actual results to differ materially from expectations include, but are not limited to, the availability of raw materials and distribution systems; disruptions at production facilities, including single-sourced facilities; hazards common to chemical businesses; the ability to respond effectively to technological changes in our industries; failure to protect our intellectual property rights; sudden, sharp, or prolonged raw material price increases; competition from other manufacturers; current and future governmental regulations; the loss of significant customers; termination or changes to contracts with contractors and subcontractors of the U.S. government or directly with the U.S. government; failure to attract and retain a highly-qualified workforce; an information technology system failure or security breach; the occurrence or threat of extraordinary events, including natural disasters, terrorist attacks, wars or other conflicts, and health-related epidemics; risks related to operating outside of the United States, including tariffs and trade policy; political, economic, and regulatory factors concerning our products; the impact of substantial indebtedness on our operational and financial flexibility; the impact of fluctuations in foreign exchange rates; resolution of environmental liabilities or legal proceedings; limitation of our insurance coverage; our inability to realize expected benefits from investment in our infrastructure or from acquisitions, or our inability to successfully integrate acquisitions into our business; the underperformance of our pension assets resulting in additional cash contributions to our pension plans; and other factors detailed from time to time in the reports that NewMarket files with the Securities and Exchange Commission, including the risk factors in Part I, Item 1A. "Risk Factors" of our Annual Report on Form 10-K for the year ended December 31, 2025, which is available to shareholders at www.newmarket.com.

Any forward-looking statement made by NewMarket in the foregoing discussion speaks only as of the date on which such forward-looking statement is made. New risks and uncertainties arise from time to time, and it is impossible for us to predict these events or how they may affect us. We have no duty to, and do not intend to, update or revise the forward-looking statements in this discussion after the date hereof, except as may be required by law. In light of these risks and uncertainties, the events described in any forward-looking statement made in this discussion, or elsewhere, might not occur.

NEWMARKET CORPORATION AND SUBSIDIARIES SEGMENT RESULTS AND OTHER FINANCIAL INFORMATION (In thousands, except per-share amounts, unaudited)

	Second Quarter Ended June 30,						Six Months Ended June 30,
		2026			2025			2026			2025
Net sales:
Petroleum additives	$	675,573		$	653,875		$	1,285,391		$	1,299,429
Specialty materials		67,165			42,037			125,306			95,758
All other		4,356			2,597			6,114			4,268
Total	$	747,094		$	698,509		$	1,416,811		$	1,399,455
Segment operating profit:
Petroleum additives	$	149,370		$	139,835		$	284,369		$	281,942
Specialty materials		22,346			10,547			34,768			33,734
Segment operating profit		171,716			150,382			319,137			315,676
All other		(212	)		(1,171	)		(1,322	)		(1,652	)
Corporate unallocated expense		(7,816	)		(6,414	)		(10,869	)		(11,300	)
Interest and financing expenses, net		(8,818	)		(10,735	)		(17,589	)		(21,435	)
Other income (expense), net		15,468			15,626			32,635			30,512
Income before income tax expense	$	170,338		$	147,688		$	321,992		$	311,801
Net income	$	133,752		$	111,244		$	251,819		$	237,193
Earnings per share - basic and diluted	$	14.54		$	11.84		$	27.14		$	25.11

NEWMARKET CORPORATION AND SUBSIDIARIES CONSOLIDATED STATEMENTS OF INCOME (In thousands, except per-share amounts, unaudited)

	Second Quarter Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
Net sales	$	747,094	$	698,509	$	1,416,811	$	1,399,455
Cost of goods sold		504,665		477,555		953,503		942,478
Gross profit		242,429		220,954		463,308		456,977
Selling, general, and administrative expenses		48,376		45,428		94,390		88,406
Research, development, and testing expenses		30,388		32,374		62,024		65,550
Operating profit		163,665		143,152		306,894		303,021
Interest and financing expenses, net		8,818		10,735		17,589		21,435
Other income (expense), net		15,491		15,271		32,687		30,215
Income before income tax expense		170,338		147,688		321,992		311,801
Income tax expense		36,586		36,444		70,173		74,608
Net income	$	133,752	$	111,244	$	251,819	$	237,193
Earnings per share - basic and diluted	$	14.54	$	11.84	$	27.14	$	25.11
Cash dividends declared per share	$	3.00	$	2.75	$	6.00	$	5.50

NEWMARKET CORPORATION AND SUBSIDIARIES CONSOLIDATED BALANCE SHEETS (In thousands, except share amounts, unaudited)

	June 30, 2026		December 31, 2025
ASSETS
Current assets:
Cash and cash equivalents	$	93,599	$	77,598
Trade and other accounts receivable, less allowance for credit losses		480,725		422,084
Inventories		523,546		502,257
Prepaid expenses and other current assets		52,494		57,773
Total current assets		1,150,364		1,059,712
Property, plant, and equipment, net		792,483		775,480
Intangibles (net of amortization) and goodwill		923,182		941,156
Prepaid pension cost		605,366		586,053
Operating lease right-of-use assets, net		86,048		78,267
Deferred charges and other assets		63,568		51,797
Total assets	$	3,621,011	$	3,492,465
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	341,645	$	238,384
Accrued expenses		95,201		109,774
Dividends payable		23,971		23,805
Income taxes payable		25,011		17,190
Operating lease liabilities		17,973		16,205
Other current liabilities		6,954		13,921
Total current liabilities		510,755		419,279
Long-term debt		854,833		883,391
Operating lease liabilities - noncurrent		67,124		62,045
Other noncurrent liabilities		349,955		349,507
Total liabilities		1,782,667		1,714,222
Shareholders' equity:
Common stock and paid-in capital (with no par value; issued and outstanding shares - 9,196,406 at June 30, 2026 and 9,397,364 at December 31, 2025)		549		2,386
Accumulated other comprehensive income		98,142		106,823
Retained earnings		1,739,653		1,669,034
Total shareholders' equity		1,838,344		1,778,243
Total liabilities and shareholders' equity	$	3,621,011	$	3,492,465

NEWMARKET CORPORATION AND SUBSIDIARIES SELECTED CONSOLIDATED CASH FLOW DATA (In thousands, unaudited)

	Six Months Ended June 30,
		2026			2025
Net income	$	251,819		$	237,193
Depreciation and amortization		63,461			57,270
Cash pension and postretirement contributions		(5,022	)		(4,871	)
Working capital changes		(3,567	)		(828	)
Deferred income tax expense (benefit)		4,486			4,604
Capital expenditures		(51,734	)		(29,295	)
Cash received from acquisition-related adjustment		1,131			0
Net borrowings (repayments) under revolving credit facility		21,000			(30,000	)
Payment on term loan		0			(50,000	)
Principal payment on 3.78% senior note		(50,000	)		(50,000	)
Dividends paid		(55,551	)		(51,898	)
Repurchases of common stock		(126,427	)		(77,218	)
All other		(33,595	)		(12,176	)
Increase (decrease) in cash and cash equivalents	$	16,001		$	(7,219	)

NEWMARKET CORPORATION AND SUBSIDIARIES NON-GAAP FINANCIAL INFORMATION (In thousands, unaudited)

Earnings Before Interest, Taxes, Depreciation, and Amortization (EBITDA)

	Second Quarter Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
Net Income	$	133,752	$	111,244	$	251,819	$	237,193
Add:
Interest and financing expenses, net		8,818		10,735		17,589		21,435
Income tax expense		36,586		36,444		70,173		74,608
Depreciation and amortization		31,468		28,107		62,798		56,501
EBITDA	$	210,624	$	186,530	$	402,379	$	389,737

Net Debt and Net Debt to EBITDA
					June 30, 2026		December 31, 2025
Long-term debt					$	854,833	$	883,391
Less: Cash and cash equivalents						93,599		77,598
Net Debt					$	761,234	$	805,793

					Rolling Four Quarters Ended
					June 30, 2026		December 31, 2025
Net Income						433,373	$	418,747
Add:
Interest and financing expenses, net						35,847		39,693
Income tax expense						137,380		141,815
Depreciation and amortization						127,167		120,870
EBITDA-Rolling Four Quarters					$	733,767	$	721,125

Net Debt to EBITDA						1.0		1.1

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FOR INVESTOR INFORMATION CONTACT:

Timothy K. Fitzgerald

Investor Relations

Phone: 804.788.5555

Email: investorrelations@newmarket.com