Afton Chemical is pleased to announce its latest development in diesel fuel detergent technology, Greenclean™ 3, now available in North America. This powerful, innovative technology builds on the successful and recognized first-generation Greenclean™ platform. With its more robust detergent system, Greenclean™ 3 will continue to enhance the operation of heavy-duty fleets and off-road equipment that contain the latest engine technology and emission control devices.

Greenclean™ 3 Detergent Technology benefits include protection from both traditional deposits and internal injector deposits, enhanced filterability, improved stability, reduction in emissions, and improved fuel economy. This new platform also incorporates other additive combinations to address performance needs such as lubricity, cetane, and cold flow improvers to minimize the complexity of handling multiple additives.

Roman Olini, Americas Commercial Vehicle Marketing Manager, credited Afton’s extensive industry experience in developing this latest generation of Greenclean™ Detergent Technology. “We developed this platform building on Afton's long legacy of technical expertise and real-world experience in the diesel fuel segment. We are proud to launch an efficient new product line that maintains the strengths of our current technology while continuing to deliver optimal performance in all segments of the commercial vehicle space,” he said.

Tim Brennan, Fuels Technical Services Manager, said, “This new detergent system has been proven in the United States, under real-world conditions validating very robust fuel economy benefits.”

About Afton Chemical Corporation:

Afton Chemical Corporation is part of the NewMarket Corporation (NYSE: NEU) family of companies. Afton Chemical Corporation uses its formulation, engineering and marketing expertise to help their customers develop and market fuels and lubricants that reduce emissions, improve fuel economy, extend equipment life, improve operator satisfaction and lower the total cost of vehicle and equipment operation. Afton Chemical Corporation develops and sells an extensive line of unique additives for gasoline and distillate fuels, driveline fluids, engine oils and industrial lubricants. Afton Chemical Corporation supports global operations through regional headquarters located in Asia Pacific, EMEAI, Latin America and North America. Afton Chemical Corporation is headquartered in Richmond, Virginia. For more information, visit www.aftonchemical.com.

Greenclean™ and Greenclean™ 3 are trademarks owned by Afton Chemical Corporation.

Cautionary Note Regarding Forward-Looking Statements:

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, such as statements regarding the benefits of the company’s manufacturing expansion and statements about the company’s long-term global growth plans. 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 industry; failure to protect our intellectual property rights; sudden or sharp raw material price increases; competition from other manufacturers; current and future governmental regulations; the gain or loss of significant customers; 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 and health-related epidemics such as the COVID-19 pandemic; risks related to operating outside of the United States; political, economic, and regulatory factors concerning our products; our inability to realize expected benefits from investment in our infrastructure or from recent or future acquisitions, or our inability to successfully integrate recent or future acquisitions into our business; 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 Item 1A. “Risk Factors” of our 2021 Annual Report on Form 10-K, which is available to shareholders upon request.

You should keep in mind that 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 the company. 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, you should keep in mind that the events described in any forward-looking statement made in this discussion, or elsewhere, might not occur.

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