NEWMARKET CORP - Annual Report: 2010 (Form 10-K)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

For the fiscal year ended December 31, 2010

OR

For the transition period from                      to                     

Commission file number 1-32190

NEWMARKET CORPORATION

Incorporated pursuant to the Laws of the Commonwealth of Virginia

Internal Revenue Service Employer Identification No. 20-0812170

330 South Fourth Street

Richmond, Virginia 23219-4350

804-788-5000

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

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act     Yes  x    No  ¨

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act    Yes  ¨    No  x

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  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted 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 and post such files).    Yes  x    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See definition of “accelerated filer,” “large accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (check one):

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

Aggregate market value of voting stock held by non-affiliates of the registrant as of June 30, 2010 (the last business day of the registrant’s most recently completed second fiscal quarter): $959,654,571*

Number of shares of Common Stock outstanding as of January 31, 2011: 13,887,090

DOCUMENTS INCORPORATED BY REFERENCE

Portions of NewMarket Corporation’s definitive Proxy Statement for its 2011 Annual Meeting of Shareholders to be filed with the Securities and Exchange Commission pursuant to Regulation 14A under the Securities Exchange Act of 1934 are incorporated by reference into Part III of this Annual Report on Form 10-K.

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Form 10-K

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PART I

NewMarket Corporation (NewMarket) (NYSE:NEU) is a holding company which is the parent company of Afton Chemical Corporation (Afton), Ethyl Corporation (Ethyl), NewMarket Services Corporation (NewMarket Services), and NewMarket Development Corporation (NewMarket Development).

Each of our subsidiaries manages its own assets and liabilities. Afton encompasses the petroleum additives business, while Ethyl represents the sale and distribution of tetraethyl lead (TEL) in North America and certain petroleum additives manufacturing operations. NewMarket Development manages the property and improvements that we own in Richmond, Virginia. NewMarket Services provides various administrative services to NewMarket, Afton, Ethyl, and NewMarket Development. NewMarket Services departmental expenses and other expenses are billed to NewMarket and each subsidiary pursuant to services agreements between the companies.

References in this Annual Report on Form 10-K to “we,” “our,” and “NewMarket” are to NewMarket Corporation and its subsidiaries on a consolidated basis, unless the context indicates otherwise.

As a specialty chemicals company, Afton develops, manufactures, and blends highly formulated fuel and lubricant additive packages, and markets and sells these products worldwide. Afton is one of the largest lubricant and fuel additives companies worldwide. Lubricant and fuel additives are necessary products for efficient maintenance and reliable operation of all vehicles and machinery. From custom-formulated chemical blends to market-general additive components, we believe Afton provides customers with products and solutions that make fuels burn cleaner, engines run smoother, and machines last longer.

Through an open, flexible, and collaborative style, Afton works closely with its customers to understand their business and help them meet their goals. This has allowed Afton to develop long-term relationships with its customers in every major region of the world, which Afton serves through eleven manufacturing facilities across the globe.

With over 350 employees in research and development, Afton is dedicated to developing chemical formulations that are tailored to the customers’ and the end-users’ specific needs. Afton’s portfolio of technologically-advanced, value-added products allows it to provide a full range of products and services to its customers.

Ethyl provides contract manufacturing services to Afton and to third parties and is also one of the primary marketers of TEL in North America.

NewMarket Development Corporation manages the property and improvements that we own on a site in Richmond, Virginia consisting of approximately 64 acres. We have our corporate offices on this site, as well as a research and testing facility, the office complex we constructed for Foundry Park I, LLC (Foundry Park I), a wholly-owned subsidiary of NewMarket Development, and several acres dedicated to other uses. We are currently exploring various development opportunities for portions of the property as the demand warrants. This effort is ongoing in nature, as we have no specific timeline for any future developments.

We were incorporated in the Commonwealth of Virginia in 2004. Our principal executive offices are located at 330 South Fourth Street, Richmond, Virginia, and our telephone number is (804) 788-5000. We employed 1,527 people at the end of 2010.

Business Segments

Our business is composed of two segments, petroleum additives and real estate development. The petroleum additives segment is primarily represented by Afton and the real estate development segment is represented by

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Foundry Park I. The TEL business of Ethyl is reflected in the “All other” category. All of these are discussed below.

Petroleum Additives—Petroleum additives are used in lubricating oils and fuels to enhance their performance in machinery, vehicles, and other equipment. We manufacture chemical components that are selected to perform one or more specific functions and combine those chemicals with other components to form additive packages for use in specified end-user applications. The petroleum additives market is an international marketplace, with customers ranging from oil companies and refineries to original equipment manufacturers (OEMs) and other specialty chemical companies. The products offered by the petroleum additives segment are sold to common customers, are served by the same plants, share common components or building blocks, and are supported with a common sales, as well as research and development, workforce.

We believe our success in the petroleum additives market is largely due to our ability to bring value to our customers through our products and our open, flexible, and collaborative working style. We accomplish this by understanding their needs and applying our technical capabilities, formulation expertise, broadly differentiated product offerings, and global distribution capabilities to meet those needs. We invest significantly in research and development in order to meet our customers’ needs, and to adapt to the rapidly changing environment for new and improved products and services.

We view the petroleum additives marketplace as being comprised of two broad product groupings: lubricant additives and fuel additives. Lubricant additives are highly formulated chemical products that improve the efficiency, durability, performance, and functionality of mineral oils, synthetic oils, and biodegradable fluids, thereby enhancing the performance of machinery and engines. Fuel additives are chemical components and products that improve the refining process and performance of gasoline, diesel, biofuels, and other fuels, resulting in lower fuel costs, improved vehicle performance, reduced tailpipe or smokestack emissions, and improved power plant efficiency.

Lubricant Additives

Lubricant additives are essential ingredients for lubricating oils. Lubricant additives are used in a wide variety of vehicle and industrial applications, including engine oils, transmission fluids, gear oils, hydraulic oils, turbine oils, and in virtually any other application where metal-to-metal moving parts are utilized. Lubricant additives are organic and synthetic chemical components that enhance wear protection, prevent deposits, and protect against the hostile operating environment of an engine, transmission, axle, hydraulic pump, or industrial machine.

Lubricants are used in nearly every piece of operating machinery from heavy industrial equipment to vehicles. Lubricants provide a layer of protection between moving mechanical parts. Without this layer of protection, the normal functioning of machinery would not occur. Effective lubricants reduce downtime, prevent accidents, and increase efficiency. Specifically, lubricants serve the following main functions:

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The functionality of lubricants is created through an exact balance between a base fluid and performance enhancing additives. This balance is the goal of effective formulations achieved by experienced research professionals. We offer a full line of lubricant additive products, each of which is composed of component chemicals specially selected to perform desired functions. We manufacture most of the chemical components and blend these components to create formulated additives packages designed to meet industry and customer specifications. Lubricant additive components are generally classified based upon their intended functionality, including:

We are one of the leading global suppliers of specially formulated lubricant additives that combine some or all of the components described above to develop our products. Our products are highly formulated, complex chemical compositions derived from extensive research and testing to ensure all additive components work together to provide the intended results. Our products are engineered to meet specifications prescribed by either the industry generally or a specific customer. Purchasers of lubricant additives tend to be oil companies, distributors, refineries, and compounders/blenders.

Key drivers of demand for lubricant additives include total vehicle miles driven, vehicle production, equipment production, the average age of vehicles on the road, new engine and driveline technologies, and drain/refill intervals.

We view our participation in the lubricant marketplace in three primary areas: engine oil additives, driveline additives, and industrial additives. Our view is not necessarily the same way others view the market.

Engine Oil Additives—The largest submarket within the lubricant additives marketplace is engine oil additives, which we estimate represents approximately 70% of the overall lubricant additives market volume. The engine oils market’s primary customers include consumers, service dealers, and OEMs. The extension of drain intervals has generally offset increased demand due to higher vehicle population and more miles driven. The primary functions of engine oil additives are to reduce friction, prevent wear, control formation of sludge and oxidation, and prevent rust. Engine oil additives are typically sold to lubricant manufacturers who combine them with a base oil fluid to meet internal, industry, and OEM specifications.

Key drivers of the engine oils market are the number of vehicles on the road, drain intervals for engine oils, engine and crankcase size, changes in engine design, and temperature and specification changes driven by the OEMs. Afton offers additives for oils that protect the modern engine and makes additives that are specially formulated to protect high mileage vehicles. Afton offers products that enhance the performance of mineral, part-synthetic, and fully-synthetic engine oils.

Driveline Additives—The driveline additives submarket is comprised of additives designed for products such as transmission fluids (TF), gear oils, and off-road fluids. This submarket shares in the 30% of the market not covered by engine oils. TF primarily serve as the power transmission and heat transfer medium in the area of the transmission where the torque of the drive shaft is transferred to the gears of the vehicle. Gear oil additives lubricate gears, bearings, clutches, and bands in the gear-box and are used in vehicles, off-highway, hydraulic, and marine equipment. Other products in this area include hydraulic transmission fluids, universal tractor fluids,

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power steering fluids, shock absorber fluids, gear oils, lubricants for heavy machinery, and vehicle greases. These products must conform to highly prescribed specifications developed by vehicle OEMs for specific models or designs. These additives are generally sold to oil companies and often ultimately sold to vehicle OEMs for new vehicles (factory-fill). End-products are also sold to service dealers for aftermarket servicing (service-fill), as well as retailers and distributors.

Key drivers of the driveline additives marketplace are the number of vehicles manufactured, drain intervals for TF and gear applications, changes in engine and transmission design and temperatures, and specification changes driven by the OEMs.

Industrial Additives—The industrial additives submarket is comprised of additives designed for products for industrial applications such as hydraulic fluids, grease, industrial gear fluids, industrial specialty applications, and metalworking additives. This submarket also shares in the 30% of the market not covered by engine oils. These products must conform to industry specifications, OEM requirements and/or application and operating environment demands. Industrial additives are generally sold to oil companies, service dealers for after-market servicing, and distributors.

Key drivers of the industrial additives marketplace are gross domestic product levels and industrial production.

Fuel Additives

Fuel additives are chemical compounds that are used to improve both the oil refining process and the performance of gasoline, diesel, residual, biofuels, and other fuels. Benefits of fuel additives in the oil refining process include reduced use of crude oil, lower processing costs, and improved fuel storage properties. Fuel performance benefits include ignition improvements, combustion efficiency, reduced emission particulates, fuel economy improvements, and engine cleanliness, as well as protection against deposits in fuel injectors, intake valves, and the combustion chamber. Our fuel additives are extensively tested and designed to meet stringent industry, government, OEM, and individual customer requirements.

Many different types of additives are used in fuels. Their use is generally determined by customer, industry, OEM, and government specifications, and often differs from country to country. The types of fuel additives we offer include:

We offer a broad line of fuel additives worldwide and sell our products to major fuel marketers and refiners, as well as independent terminals and other fuel blenders.

Key drivers in the fuel additive marketplace include total vehicle miles driven, the introduction of more sophisticated engines, regulations on emissions (both gasoline and diesel), quality of the crude oil slate and performance standards, and marketing programs of major oil companies.

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Competition

We believe we are one of the four largest manufacturers and suppliers in the petroleum additives marketplace.

In the lubricant additives submarket of petroleum additives, our major competitors are The Lubrizol Corporation, Infineum (a joint venture between ExxonMobil Chemical and Royal Dutch Shell plc), and Chevron Oronite Company LLC. There are several other suppliers in the worldwide market who are competitors in their particular product areas.

The fuel additives submarket is fragmented and characterized by many competitors. While we participate in many facets of the fuel additives market, our competitors tend to be more narrowly focused. In the gasoline detergent market, we compete mainly against BASF AG, Chevron Oronite Company LLC, and The Lubrizol Corporation; in the cetane improver market, we compete mainly against Innospec, Inc. (Innospec), Eurenco, and EPC - U.K.; and in the diesel markets, we compete mainly against The Lubrizol Corporation, Infineum, BASF AG, and Innospec. We also compete against other regional competitors in the fuel additives marketplace.

The competition among the participants in these industries is characterized by the need to provide customers with cost effective, technologically-capable products that meet or exceed industry specifications. The need to continually increase technology performance and lower cost through formulation technology and cost improvement programs is vital for success in this environment.

Real Estate Development—The real estate development segment represents the operations of Foundry Park I.

In January 2007, Foundry Park I entered into a Deed of Lease Agreement with MeadWestvaco Corporation (MeadWestvaco) under which it is leasing an office building which we have constructed on approximately three acres. The construction of the building was completed in late 2009 and was to the specifications of MeadWestvaco, which is using the building as its corporate headquarters. The rental income to us began in 2010. The lease term is for a period of 13 ¹/2 years with rent based upon a factor of the final project cost.

Foundry Park I obtained financing, which was due in August 2010 and which was guaranteed by NewMarket Corporation, for the construction phase. In early 2010, we secured a five year loan on the property. We used the proceeds from this loan together with cash on hand to repay the construction loan. Further information on our financing of the project and the related interest rate swap agreements is in Notes 12 and 16 (when we make a reference to Notes, we mean the Notes to Consolidated Financial Statements included herein). None of these agreements impacts the terms of the lease with MeadWestvaco. During 2007, 2008, and 2009, we capitalized the costs of the project, as well as the financing expenses.

We are currently exploring various development opportunities for other portions of the property we own, as the demand warrants. This search is ongoing in nature, as we have no specific timeline for any future developments.

All Other—The “All other” category includes the continuing operations of the TEL business (primarily sales of TEL in North America), as well as certain contract manufacturing Ethyl provides to Afton and to third parties. Ethyl manufacturing facilities include our Houston, Texas and Sarnia, Ontario, Canada plants. Both the Houston and Sarnia plants manufacture a significant amount of petroleum additives products for Afton. The Houston plant is substantially dedicated to petroleum additives manufacturing and produces both lubricant additives and fuel additives. The Sarnia plant is completely dedicated to petroleum additives manufacturing and produces fuel additives. The financial results of the petroleum additives production by the Ethyl manufacturing facilities are reflected in the petroleum additives segment results. The “All other” category financial results include a service fee charged by Ethyl for its production services to Afton. Our remaining manufacturing facilities are part of Afton and produce both lubricant additives and fuel additives.

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Raw Materials and Product Supply

We use a variety of raw materials and chemicals in our manufacturing and blending processes and believe the sources of these are adequate for our current operations. The primary raw materials for Afton are base oil, polyisobutylene, antioxidants, alcohols, solvents, sulfonates, friction modifiers, olefins, and copolymers.

As the performance requirements of our products become more complex, we often work with highly specialized suppliers. In some cases, we source from a single supplier. In cases where we decide to source from a single supplier, we manage our risk by maintaining safety stock of the raw material, qualifying alternate supply, or identifying a backup position. The backup position could take additional time to implement, but we are confident we can ensure continued supply for our customers. We continue to monitor the raw material supply situation and will adjust our procurement strategies as conditions require.

Research, Development, and Testing

Research, development, and testing (R&D) provides technologies and performance based solutions for the petroleum additives market. We develop products through a combination of chemical synthesis, formulation, engineering design and performance testing. In addition to products, R&D provides our customers with product differentiation and technical support to assure total customer satisfaction.

We are committed to providing the most advanced products, comprehensive testing programs, creative solutions, and superior technical support to our customers and to OEMs worldwide. R&D expenditures, which totaled $91 million in 2010, $86 million in 2009, and $82 million in 2008, are expected to grow again in 2011 in support of our core technology areas. Afton continues to increase globally our internal testing, research, and customer support capabilities in support of our goals of providing market driven technical leadership and performance based differentiation.

In 2010, we successfully launched effective new technologies for multiple new engine oil categories including ILSAC GF-5, ACEA 2008, and General Motor’s new engine oil specification, dexos1™. Research in the engine oil area continues to increase with a focused approach to develop next generation technologies capable of meeting new performance standards and to provide our customers with marketing differentiation.

We continue to provide leading technology in the fuel additives area. New products were developed and launched in all product lines including gasoline performance additives, diesel performance additives and finished fuel additives. Research is focused on the development of new technologies that exceed the changing needs of modern engine fueling systems and changing fuel properties, as well as addressing the growing need for increased fuel economy and emissions reduction. In addition, we continued to maintain close interactions with regulatory, industry, and OEM leaders to guide our development of future fuel additive technologies based on well-defined market needs.

Our industrial additives product slate continued to expand with the development of new products in multiple areas including hydraulic fluids, grease, industrial gear oils, turbine oils, and metal working fluid additives. Research is focused on the development of technologies that will provide differentiation to our customers in multiple performance areas including equipment life and energy efficiency.

Technology development continued at a rapid pace in our driveline product lines. This included the development of new products, components, and technology for the expanding line-up of transmission types and the increasing need for fuel efficiency and performance durability in both transmission and axle systems. Afton’s state-of-the art testing capabilities are enabling customized research in all areas of performance needed by both OEMs and tier one suppliers. Our leading-edge capabilities and fundamental understanding in the areas of friction control, energy efficiency, and wear/pitting prevention were used to set the stage for next generation products in all driveline areas including both factory fill and service fill sectors.

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Intellectual Property

Our intellectual property, including our patents, licenses, and trademarks, is an important component of our business. We actively protect our inventions, new technologies, and product developments by filing patent applications or maintaining trade secrets. We currently own approximately 1,400 issued or pending United States and foreign patents. In addition, we have acquired the rights under patents and inventions of others through licenses or otherwise. We take care to respect the intellectual property rights of others and we believe our products do not infringe upon those rights. We vigorously participate in patent opposition proceedings around the world, where necessary, to secure a technology base free of infringement. We believe our patent position is strong, aggressively managed, and sufficient for the conduct of our business.

We also have several hundred trademark registrations throughout the world for our marks, including NewMarket^®, Afton Chemical^®, Ethyl^®, mmt^®, HiTEC^®, TecGARD^®, GREENBURN^®, Passion for Solutions^®, CleanStart^®, Polartech^®, and BioTEC^®, as well as several pending trademark and service mark applications, including Axcel™ and 24/7 QuickResponse^SM.

Commitment to Environmental and Safety Excellence

We are committed to continuous improvement and vigilant management of the health and safety of our employees, customers, and the communities in which we operate, as well as the stewardship of the environment. One way our companies demonstrate this is through our commitment to the Guiding Principles of the American Chemistry Council (ACC) Responsible Care^® program. Both Afton and Ethyl have implemented Responsible Care Management Systems (RCMS^®) at their U.S. headquarters and most facilities. Our implementation of RCMS was certified by an independent auditing process as established by the ACC as a requirement of membership. Additionally, Afton’s Feluy, Belgium plant was certified to the environmental standard ISO 14001. Afton’s Sauget, Illinois plant also continues to be an OSHA Star VPP (Voluntary Protection Program) location.

Safety and environmental responsibility are a way of life at NewMarket—enhancing operations, the way we work, and the relationships we maintain with our employees, customers, supply chain partners, and the communities in which we operate. Our executive management meetings begin with a review of our environmental and safety performance.

Our objective is to establish a culture where our employees understand that good environmental and safety performance is good business and understand that environmental compliance and safety is their personal responsibility.

Our worldwide injury/illness recordable rate (which is the number of injuries per 200,000 hours worked) in 2010 was 0.64. The rate in 2009 was 0.66 and the 2008 rate was 0.84. We plan to continue to demonstrate our safety-first culture with continuous improvement in our safety record. This represents a focused effort by all of our employees. We are extremely proud of our accomplishments in the safety area, especially when compared to safety records in other industries.

As members of the ACC, Afton and Ethyl provide data on twelve metrics used to track environmental, safety, energy use, and product stewardship performance of ACC member companies. These can be viewed at www.responsiblecare-us.com. The information on this website is not, and shall not be deemed to be, a part of this Annual Report on Form 10-K or incorporated by reference in this Annual Report on Form 10-K or any other filings we make with the Securities and Exchange Commission (SEC).

Environmental

We operate under policies that we believe comply with federal, state, local, and foreign requirements regarding the handling, manufacture, and use of materials. One or more regulatory agencies may classify some of these materials as hazardous or toxic. We also believe that we comply in all material respects with laws, regulations,

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statutes, and ordinances protecting the environment, including those related to the discharge of materials. We expect to continue to comply in all material respects.

We regularly review the status of significant existing or potential environmental issues. We record and expense our proportionate share of environmental remediation and monitoring costs in accordance with accounting principles generally accepted in the United States.

Total gross liabilities accrued at year-end for environmental remediation were $22.5 million for 2010 and $22.0 million for 2009. In addition to the accruals for environmental remediation, we also had accruals for dismantling and decommissioning costs of $500 thousand at both December 31, 2010 and December 31, 2009.

As new technology becomes available, it may be possible to reduce accrued amounts. While we believe that we are fully accrued for known environmental issues, it is possible that unexpected future costs could have a significant financial impact on our financial position and results of operations.

We spent approximately $18 million in 2010 and $17 million in both 2009 and 2008 for ongoing environmental operating and clean-up costs, excluding depreciation of previously capitalized expenditures. These environmental operating and clean-up expenses are included in cost of goods sold.

For capital expenditures on pollution prevention and safety projects, we spent $7 million in 2010, $5 million in 2009, and $7 million in 2008.

Our estimate of the effects of complying with governmental pollution prevention and safety regulations is subject to:

We are subject to liabilities associated with the investigation and cleanup of hazardous substances, as well as personal injury, property damage, or natural resource damage arising from the release of, or exposure to, such hazardous substances. Further, we may have environmental liabilities imposed in many situations without regard to violations of laws or regulations. These liabilities may also be imposed jointly and severally (so that a responsible party may be held liable for more than its share of the losses involved, or even the entire loss) and may be imposed on many different entities with a relationship to the hazardous substances at issue, including, for example, entities that formerly owned or operated the property and entities that arranged for the disposal of the hazardous substances at an affected property. We are subject to many environmental laws, including the federal Comprehensive Environmental Response, Compensation and Liability Act, commonly known as CERCLA or Superfund, in the United States, and similar foreign and state laws.

Under CERCLA, we are currently considered a potentially responsible party (PRP), at several sites, ranging from a de minimis PRP or a minor PRP, to an involvement considered greater than the minor PRP involvement. At some of these sites, the remediation methodology, as well as the proportionate shares of each PRP, has been well established. Other sites are not as mature, which makes it more difficult to reasonably estimate our share of the future clean-up or remediation costs.

In 2000, the Environmental Protection Agency (EPA) named us as a PRP for the clean-up of soil and groundwater contamination at the Sauget Area 2 Site in Sauget, Illinois. Without admitting any fact, responsibility, fault, or liability in connection with this site, we are participating with other PRPs in site investigations and feasibility studies. The Sauget Area 2 Site PRPs received notice of approval from the EPA of

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their October 2009 Human Health Risk Assessment. Additionally, the PRPs have submitted their Feasibility Study (FS) to the EPA Remedy review board. We have accrued our estimated proportional share of the expenses for the FS, as well as our best estimate of our proportional share of the remediation liability proposed in our ongoing discussions and submissions with the agencies involved. We do not believe there is any additional information available as a basis for revision of the liability that we have established. The amount accrued for this site is not material. We also have several other sites where we are in the process of environmental remediation and monitoring. See Note 18.

Geographic Areas

We have operations in the United States, Europe, Asia, Latin America, Australia, India, the Middle East, and Canada. The economies are stable in the countries where we do most of our business. In countries with more political or economic uncertainty, we generally minimize our risk of loss by utilizing U.S. Dollar-denominated transactions, letters of credit, and prepaid transactions. Our foreign customers consist of financially viable government organizations, as well as both large and smaller companies.

The table below reports revenues and long-lived assets by geographic area. Except for the United States, no country exceeded 10% of revenue or long-lived assets during any year. We assign revenues to geographic areas based on the location to which the product was shipped to a third-party. The change in revenues during the three-year period is discussed more fully in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operation.”

Geographic Areas

(in millions of dollars)

Net sales to one customer of our petroleum additives segment exceeded 10% of consolidated revenue in 2010, 2009, and 2008. Sales to Royal Dutch Shell plc and its affiliates (Shell) amounted to $217 million (12% of consolidated revenue) in 2010, $232 million (15% of consolidated revenue) in 2009, and $261 million (16% of consolidated revenue) in 2008. These sales represent a wide-range of products sold to this customer in multiple regions of the world.

Availability of Reports Filed with the Securities and Exchange Commission and Corporate Governance Documents

Our internet website address is www.newmarket.com. We make available, free of charge through our website, our Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (Exchange Act), as soon as reasonably practicable after such documents are electronically

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filed with, or furnished to, the SEC. In addition, our Corporate Governance Guidelines, Code of Conduct, and the charters of our Audit; Compensation; and Nominating and Corporate Governance Committees, are available on our website and are available in print, without charge, to any shareholder upon request by contacting our Corporate Secretary at NewMarket Corporation, 330 South Fourth Street, Richmond, Virginia 23219. The information on our website is not, and shall not be deemed to be, a part of this Annual Report on Form 10-K or incorporated by reference in this Annual Report on Form 10-K or any other filings we make with the SEC.

Executive Officers of the Registrant

The names and ages of all executive officers as of February 22, 2011 follow.

Our officers, at the discretion of the Board of Directors, hold office until the meeting of the Board of Directors following the next annual shareholders’ meeting. All of the officers have served in these capacities with NewMarket for at least the last five years.

Our business is subject to many factors that could materially adversely affect our future performance and cause our actual results to differ materially from those expressed or implied by forward-looking statements made in this Annual Report on Form 10-K. Those risk factors are outlined below.

The chemical industry can experience some tightness of supply of certain materials or transportation systems. In addition, in some cases, we choose to source from a single supplier. Any significant disruption in supply could affect our ability to obtain raw materials or transportation systems. This could have a material adverse effect on our operations.

Several of the products we sell are produced only in one location. We are dependent upon the continued safe operation of these production facilities. These production facilities are subject to various hazards associated with the manufacturing, handling, storage, and transportation of chemical materials and products, including leaks and ruptures, explosions, fires, inclement weather and natural disasters, unscheduled downtime, and environmental hazards. Some of our products involve the manufacturing and handling of a variety of reactive, explosive, and flammable materials. Many of these hazards could cause a disruption in the production of our products. We cannot assure you that these facilities will not experience these types of hazards and disruptions in the future or that these incidents will not result in production delays or otherwise have an adverse effect on our results of operations, financial condition or cash flows in any given period.

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Our future business success will depend upon our ability to maintain and enhance our technological capabilities, develop and market products and applications that meet changing customer needs, and successfully anticipate or respond to technological changes on a cost-effective and timely basis. Our industry is characterized by frequent changes in industry performance standards, which affect the amount and timing of our research and development costs and other technology-related costs. As a result, the life cycle of our products is often hard to predict. Further, technological changes in some or all of our customers’ products or processes may make our products obsolete. Our inability to maintain a highly qualified technical workforce or their inability to anticipate, respond to, or utilize changing technologies could have a material adverse effect on our results of operations, financial condition, and cash flow in any given period.

Protection of our proprietary processes, methods, compounds, and other technologies is important to our business. We depend upon our ability to develop and protect our intellectual property rights to distinguish our products from those of our competitors. Failure to protect our existing intellectual property rights may result in the loss of valuable technologies or having to pay other companies for infringing on their intellectual property rights. We rely on a combination of patent, trade secret, trademark, and copyright law, as well as judicial enforcement, to protect such technologies. We currently own approximately 1,400 issued and pending U.S. and foreign patents. Some of these patents are licensed to others. In addition, we have acquired the rights under patents and inventions of others through licenses or otherwise. We have developed, and may in the future develop, technologies with universities or other academic institutions, or with the use of government funding. In such cases, the academic institution or the government may retain certain rights to the developed intellectual property. We also own several hundred trademark and service mark registrations throughout the world for our marks, including NewMarket^®, Afton Chemical^®, Ethyl^®, HiTEC^®, TecGARD^®, GREENBURN^® BioTEC^®, Passion for Solutions^®, CleanStart^®, Polartech^®, and mmt^®, as well as pending trademark and service mark applications, including Axcel™ and 24/7 QuickResponse^SM. In the event that we are unable to continue using certain of our marks, we may be forced to rebrand our products, which could result in the loss of brand recognition, and could require us to devote resources to advertise and market brands. In particular, the loss of our HiTEC^® mark would have a material adverse effect on our business.

We cannot assure you that the measures taken by us to protect these assets and rights will provide meaningful protection for our trade secrets or proprietary manufacturing expertise or that adequate remedies will be available in the event of an unauthorized use or disclosure of our trade secrets or manufacturing expertise. We cannot assure you that any of our intellectual property rights will not be challenged, invalidated, circumvented, or rendered unenforceable. Furthermore, we cannot assure you that any pending patent application filed by us will result in an issued patent, or if patents are issued to us, that those patents will provide meaningful protection against competitors or against competitive technologies. The failure of our patents or other measures to protect our processes, apparatuses, technology, trade secrets and proprietary manufacturing expertise, methods, and compounds could have an adverse effect on our results of operations, financial condition, and cash flow.

We could face patent infringement claims from our competitors or others alleging that our processes or products infringe on their proprietary technologies. If we were found to be infringing on the proprietary technology of others, we may be liable for damages, and we may be required to change our processes, to redesign our products partially or completely, to pay to use the technology of others or to stop using certain technologies or producing the infringing product entirely. Even if we ultimately prevail in an infringement suit, the existence of the suit could prompt customers to switch to products that are not the subject of infringement suits. We may not prevail in any intellectual property litigation and such litigation may result in significant legal costs or otherwise impede our ability to produce and distribute key products.

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Our business is subject to hazards common to chemical manufacturing, storage, handling, and transportation, including explosions, fires, inclement weather, natural disasters, mechanical failure, unscheduled downtime, transportation interruptions, remediation, chemical spills, discharges or releases of toxic or hazardous substances or gases, and other risks. These hazards can cause personal injury and loss of life, severe damage to, or destruction of, property and equipment, and environmental contamination. In addition, the occurrence of material operating problems at our facilities due to any of these hazards may diminish our ability to meet our output goals. Accordingly, these hazards and their consequences could have a material adverse effect on our operations as a whole, including our results of operations, and cash flows, both during and after the period of operational difficulties.

Chemical-related assets may be at greater risk of future terrorist attacks than other possible targets in the United States and throughout the world. Federal legislation has imposed significant new site security requirements, specifically on chemical manufacturing facilities, that will require an estimated $2 million to $3 million in capital expenditures over the next two years at our manufacturing facilities and increase our annual overhead expenses. Federal regulations have also been enacted to increase the security of the transportation of hazardous chemicals in the United States. Further regulations could be enacted in the future, which could result in additional costs.

The occurrence of extraordinary events, including future terrorist attacks and the outbreak or escalation of hostilities, cannot be predicted, but their occurrence can be expected to affect negatively the economy in general, and specifically the markets for our products. The resulting damage from a direct attack on our assets or assets used by us could include loss of life and property damage. In addition, available insurance coverage may not be sufficient to cover all of the damage incurred or, if available, may be prohibitively expensive.

We face intense competition in certain of the product lines and markets in which we compete. We expect that our competitors will develop and introduce new and enhanced products, which could cause a decline in the market acceptance of certain products we manufacture. In addition, as a result of price competition, we may be compelled to reduce the prices for some of our products, which could adversely affect our margins and profitability. Competitive pressures can also result in the loss of major customers. Our inability to compete successfully could have a material adverse effect on our results of operations, financial condition, and cash flows in any given period. In addition, some of our competitors may have greater financial, technological, and other resources than we have. Some of our competitors may also be able to maintain greater operating and financial flexibility than we are able to maintain. As a result, these competitors may be able to better withstand changes in conditions within our industry, changes in the prices for raw materials, and changes in general economic conditions.

We utilize a variety of raw materials in the manufacture of our products, including base oil, polyisobutylene, antioxidants, alcohols, solvents, sulfonates, friction modifiers, olefins, and copolymers. Our profitability is sensitive to changes in the costs of these materials caused by changes in supply, demand or other market conditions, over which we have little or no control. Political and economic conditions in the Middle East and Latin America have caused, and may continue to cause, the cost of our raw materials to fluctuate. War, armed hostilities, terrorist acts, civil unrest, or other incidents may also cause a sudden or sharp increase in the cost of our raw materials. We cannot assure you that we will be able to pass on to our customers any future increases in raw material costs in the form of price increases for our products.

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Our principal customers are major multinational oil companies. The oil industry is characterized by the concentration of a few large participants as a result of consolidation. The loss of a significant customer or a material reduction in purchases by a significant customer could have a material adverse effect on our results of operations, financial condition, and cash flow.

Most of our customers are primarily engaged in the fuel and lubricant industries. This concentration of customers affects our overall risk profile, since our customers will be similarly affected by changes in economic, geopolitical, and industry conditions. Many factors affect the level of our customers’ spending on our products, including, among others, general business conditions, changes in technology, interest rates, gasoline prices, and consumer confidence in future economic conditions. A sudden or protracted downturn in these industries could adversely affect the buying power and purchases by our customers.

In 2010, sales to customers outside of the United States accounted for over 60% of consolidated revenue. We do business in all major regions of the world, some of which do not have stable economies or governments. In particular, we sell and market products in countries experiencing political and economic instability in the Middle East, Asia Pacific, and Latin America. Our international operations are subject to international business risks, including unsettled political conditions, expropriation, import and export restrictions, increases in royalties, exchange controls, national and regional labor strikes, taxes, government royalties, inflationary economies and currency exchange rate fluctuations, and changes in laws and policies governing operations of foreign-based companies (such as restrictions on repatriation of earnings or proceeds from liquidated assets of foreign subsidiaries). The occurrence of any one or a combination of these factors may increase our costs or have other adverse effects on our business.

We conduct our business in the local currency of most of the countries in which we operate. The financial condition and results of operations of our foreign operating subsidiaries are reported in the relevant local currency and then translated to U.S. Dollars at the applicable currency exchange rate for inclusion in our consolidated financial statements. Changes in exchange rates between these foreign currencies and the U.S. Dollar will affect the recorded levels of our assets and liabilities, as well as our revenues, costs, and operating margins. The primary foreign currencies in which we have exchange rate fluctuation exposure are the European Union Euro, British Pound Sterling, Japanese Yen, and Canadian Dollar. Exchange rates between these currencies and the U.S. Dollar have fluctuated significantly in recent years and may do so in the future.

The United States EPA studied mmt^® and determined that it does not cause or contribute to the failure of vehicle emission systems. The Canadian government has made similar findings. The EPA also required, under certain provisions of the Clean Air Act, additional testing to fill some data gaps, including potential risks to public health. The final report for the mmt^® Alternative Tier 2 Health Testing Program was accepted and requirements of the mandated program were deemed to have been met with submission of a June 2009 report to the EPA. No change in current determinations has been made. In December 2003, the government of Canada released its “Proposed Framework for an

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Independent Third-Party Review of New Information on the Effects of mmt^® Vehicle Emissions.” In its proposal, the Canadian government provided no timetable for the commencement or completion of the review, and to date, the government of Canada has not initiated the review.

The European Union (EU) finalized the latest version of the EU Fuel Quality Directive in December 2008, rejecting a proposed ban on mmt^® by the European Parliament’s Environmental Committee but implementing interim use limits and labeling requirements while a scientific risk assessment on metallic additives is carried out. A legal challenge initiated by Afton, seeking removal of these limits and labeling requirements while a risk assessment is underway, was rejected in 2010. The EU has not yet initiated a risk assessment for metallic additives.

Certain industry and other interest groups continue to urge greater regulation of all metal-based gasoline additives, including mmt^®. These industry groups include the Alliance of Automobile Manufacturers (AAM), the Association of International Automobile Manufacturers, and the Canadian Vehicle Manufacturers’ Association, who allege generally that metallic additives impair the proper operation of vehicle emission control systems. Increased government regulation of mmt^®, if it occurs, or additional studies evaluating metallic additives, even if government regulation does not occur, could have a material adverse effect on our sales of mmt^®.

We are subject to regulation by local, state, federal, and foreign governmental authorities. In some circumstances, before we may sell certain products, these authorities must approve these products, our manufacturing processes, and facilities. We are also subject to ongoing reviews of our products, manufacturing processes, and facilities by governmental authorities.

In order to obtain regulatory approval of certain new products, we must, among other things, demonstrate to the relevant authority that the product is safe and effective for its intended uses and that we are capable of manufacturing the product in accordance with current regulations. The process of seeking approvals can be costly, time consuming, and subject to unanticipated and significant delays. There can be no assurance that approvals will be granted to us on a timely basis, or at all. Any delay in obtaining, or any failure to obtain or maintain, these approvals would adversely affect our ability to introduce new products and to generate sales from those products.

New laws and regulations, including climate change regulations, may be introduced in the future that could result in additional compliance costs, seizures, confiscation, recall, or monetary fines, any of which could prevent or inhibit the development, distribution, and sale of our products. If we fail to comply with applicable laws and regulations, we may be subject to civil remedies, including fines, injunctions, and recalls or seizures, any of which could have an adverse effect on our results of operations, financial condition, and cash flows.

Our business and our customers are subject to significant regulations under the European Commission’s Registration, Evaluation and Authorization of Chemicals (REACH) regulation. REACH became effective on June 1, 2007. It imposes obligations on European Union manufacturers and importers of chemicals and other products into the European Union to compile and file comprehensive reports, including testing data, on each chemical substance, perform chemical safety assessments, and obtain pre-market authorization with respect to certain substances of particularly high concern. The regulation imposes significant additional burdens on chemical producers and importers, and, to a lesser extent, downstream users of chemical substances and preparations. Our manufacturing presence and sales activities in the European Union will require us to incur significant additional compliance costs.

We are involved in numerous administrative and legal proceedings that result from, and are incidental to, the conduct of our business. From time to time, these proceedings involve environmental, product liability, TEL, premises asbestos liability, and other matters. See Item 3, “Legal Proceedings.” We have

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insurance coverage that we believe would be available to mitigate potential damages in many of these proceedings. However, there is no assurance that our available insurance will cover these claims, that our insurers will not challenge coverage for certain claims, or that final damage awards will not exceed our available insurance coverage. Any of the foregoing could have a material adverse effect on our results of operations, financial condition, and cash flows in any given period.

As a manufacturer and distributor of chemical products, we are generally subject to extensive local, state, federal, and foreign environmental, safety, and health laws and regulations concerning, among other things, emissions to the air, discharges to land and water, the generation, handling, treatment, and disposal of hazardous waste and other materials, and remediation of contaminated soil, surface, and ground water. Our operations entail the risk of violations of those laws and regulations, many of which provide for substantial fines and criminal sanctions for violations. We believe that we comply in all material respects with laws, regulations, statutes, and ordinances protecting the environment, including those related to the discharge of materials. However, we cannot assure you that we have been or will be at all times in compliance with all of these requirements.

In addition, these requirements, and the enforcement or interpretation of these requirements, may become more stringent in the future. Although we cannot predict the ultimate cost of compliance with any such requirements, the costs could be material. Noncompliance could subject us to material liabilities, such as government fines, damages arising from third-party lawsuits, or the suspension and potential cessation of noncompliant operations. We may also be required to make significant site or operational modifications at substantial cost. Future developments could also restrict or eliminate the use of or require us to make modifications to our products, which could have an adverse effect on our results of operations, financial condition, and cash flows in any given period.

At any given time, we are involved in claims, litigation, administrative proceedings, and investigations of various types in a number of jurisdictions involving potential environmental liabilities, including clean-up costs associated with waste disposal sites, natural resource damages, property damage, and personal injury. We cannot assure you that the resolution of these environmental matters will not have an adverse effect on our results of operations, financial condition, and cash flows in any given period.

There may be environmental problems associated with our properties of which we are unaware. Some of our properties contain, or may have contained in the past, on-site facilities or underground tanks for the storage of chemicals, hazardous materials, and waste products that could create a potential for release of hazardous substances or contamination of the environment. The discovery of environmental liabilities attached to our properties could have a material adverse effect on our results of operations, financial condition, and cash flows.

We may also face liability arising from current or future claims alleging personal injury, product liability, property damage due to exposure to chemicals or other hazardous substances, such as premises asbestos, at or from our facilities. We may also face liability for personal injury, product liability, property damage, natural resource damage, or clean-up costs for the alleged migration of contaminants or hazardous substances from our facilities or for future accidents or spills. A significant increase in the number or success of these claims could adversely affect our financial condition, results of operations, and cash flows. For further discussion of some related claims, see Item 1, “Business—Environmental.”

The ultimate costs and timing of environmental liabilities are difficult to predict. Liability under environmental laws relating to contaminated sites can be imposed retroactively and on a joint and several basis. A liable party could be held responsible for all costs at a site, whether currently or formerly owned or operated regardless of fault, knowledge, timing of the contamination, cause of the contamination, percentage of contribution to the contamination, or the legality of the original disposal. We could incur significant costs, including clean-up costs, natural resource damages, civil or criminal

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fines and sanctions, and third-party claims, as a result of past or future violations of, or liabilities under, environmental laws.

We are subject to the federal, state and local environmental laws under which we may be designated as a PRP. As a PRP, we may be liable for a share of the costs associated with cleaning up hazardous waste sites, such as a landfill to which we may have sent waste.

In de minimis PRP matters and in some minor PRP matters, we generally negotiate a consent decree to pay an apportioned settlement. This relieves us of any further liability as a PRP, except for remote contingencies. We are also a PRP at sites where our liability may be in excess of the de minimis or minor PRP levels. Most sites where we are a PRP represent environmental issues that are quite mature. The sites have been investigated, and in many cases, the remediation methodology, as well as the proportionate shares of each PRP, has been established. Other sites are not as mature, which makes it more difficult to reasonably estimate our share of future clean-up or remediation costs. Generally, environmental remediation and monitoring will go on for an extended period. As a result, we may incur substantial expenses for all these sites over a number of years.

Liability for investigation and remediation of hazardous substance contamination at currently or formerly owned or operated facilities or at third-party waste disposal sites is joint and several. Currently, we are involved in active remediation efforts at several sites where we have been named a PRP. If other PRPs at these sites are unable to contribute to the remediation costs, we could be held responsible for some, or all, of their portion of the remediation costs, in addition to the portions for which we have already accounted.

Our senior credit agreement and senior notes contain restrictive covenants. These covenants may constrain our activities and limit our operational and financial flexibility. The failure to comply with these covenants could result in an event of default, which, if not cured or waived, could have a material adverse effect on our business, financial condition, and results of operations.

We maintain property, business interruption, and casualty insurance, but such insurance may not cover all risks associated with the hazards of our business and is subject to limitations, including deductibles and maximum liabilities covered. We may incur losses beyond the limits, or outside the coverage, of our insurance policies, including liabilities for environmental remediation. In the future, we may not be able to obtain coverage at current levels, and our premiums may increase significantly on coverage that we maintain.

In January 2007, Foundry Park I entered into a Deed of Lease Agreement with MeadWestvaco under which it is leasing an office building which we have constructed on approximately three acres.

Our landlord and financing activities may subject us to the following risks:

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As part of our business growth strategy, we intend to pursue acquisitions and joint venture opportunities. Our ability to implement this component of our growth strategy will be limited by our ability to identify appropriate acquisition or joint venture candidates and our financial resources, including available cash and borrowing capacity. The expense incurred in completing acquisitions or entering into joint ventures, the time it takes to integrate an acquisition, or our failure to integrate businesses successfully, could result in unanticipated expenses and losses. Furthermore, we may not be able to realize any of the anticipated benefits from acquisitions or joint ventures.

The process of integrating acquired operations into our existing operations may result in unforeseen operating difficulties and may require significant financial resources that would otherwise be available for the ongoing development or expansion of existing operations.

External factors beyond our control, such as customer orders, product shipment dates, and other factors can cause shifts in net sales and income from quarter to quarter. These external factors can magnify the impact of industry cycles. As a result, our income and cash flows may fluctuate significantly on a quarter-to-quarter basis, and your ability to gauge trends in our business may be impaired.

Our pension plan asset allocation is predominantly weighted towards equities. Cash contribution requirements to our pension plans are sensitive to changes in our plans’ actual return on assets. Reductions in our plans’ return on assets due to poor performance of the equities markets could cause our pension plans to be underfunded and require us to make additional cash contributions.

None.

Our principal operating properties are shown below. Unless indicated, we own the research, development, and testing facilities and manufacturing properties, which primarily support the petroleum additives business segment.

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We own our corporate headquarters located in Richmond, Virginia, and generally lease our regional and sales offices located in a number of areas worldwide.

NewMarket Development Corporation manages the property and improvements that we own on a site in Richmond, Virginia consisting of approximately 64 acres. We have our corporate offices on this site, as well as a research and testing facility, the office complex we constructed for Foundry Park I, and several acres dedicated to other uses. We are currently exploring various development opportunities for portions of the property as the demand warrants. This effort is ongoing in nature, as we have no specific timeline for any future developments.

In January 2007, Foundry Park I entered into a Deed of Lease Agreement with MeadWestvaco under which it is leasing the office building which we constructed on approximately three acres.

Production Capacity

We believe our plants and supply agreements are sufficient to meet expected sales levels. Operating rates of the plants vary with product mix and normal sales swings. We believe that our facilities are well maintained and in good operating condition.

We are involved in legal proceedings that are incidental to our business and include administrative or judicial actions seeking remediation under environmental laws, such as Superfund. Some of these legal proceedings relate to environmental matters and involve governmental authorities. For further information, see “Environmental” in Part I, Item 1.

While it is not possible to predict or determine with certainty the outcome of any legal proceeding, we believe the outcome of any of these proceedings, or all of them combined, will not result in a material adverse effect on our consolidated financial condition or results of operations.

On July 23, 2010, Afton Chemical Corporation and NewMarket Corporation filed a complaint in Federal District Court in Richmond, Virginia against Innospec. The complaint alleges that Innospec violated the Robinson-Patman Act, the Sherman Act, the Virginia Antitrust Act and Virginia Business Conspiracy Act based on the disclosures that Innospec recently made in its plea agreements with the U.S. Department of Justice and the Securities and Exchange Commission, as well as the UK Serious Fraud Office. In those agreements, Innospec pled guilty to violating the Foreign Corrupt Practices Act by bribing government officials in Iraq and Indonesia. Innospec paid the bribes to secure the sale of its product and to exclude NewMarket’s product in Iraq and Indonesia. Afton Chemical Corporation and NewMarket Corporation are seeking treble damages, all reasonable attorneys’ fees, expenses, and costs for injuries sustained as a result of these bribes.

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PART II

Our common stock, with no par value, has traded on the New York Stock Exchange (NYSE) under the symbol “NEU” since June 21, 2004 when we became the parent holding company of Ethyl, Afton, NewMarket Services, and their subsidiaries. We had 3,025 shareholders of record at January 31, 2011.

On July 31, 2008, our Board of Directors approved a share repurchase program that authorized management to repurchase up to $100 million of NewMarket’s outstanding common stock until December 31, 2010, as market conditions warrant and covenants under our existing agreements permitted. We could conduct the share repurchases in the open market and in privately negotiated transactions. The repurchase program did not require NewMarket to acquire any specific number of shares and could be terminated or suspended at any time. The 2008 repurchase program was terminated on July 21, 2010.

Also, on July 21, 2010, our Board of Directors approved a new share repurchase program authorizing management to repurchase up to $200 million of NewMarket’s outstanding common stock until December 31, 2012, as market conditions warrant and covenants under our existing agreements permit. We may conduct the share repurchases in the open market and in privately negotiated transactions. The repurchase program does not require NewMarket to acquire any specific number of shares and may be terminated or suspended at any time. Approximately $154.4 million remained available under the 2010 authorization at December 31, 2010. The following table outlines the purchases during the fourth quarter 2010 under this authorization.

ISSUER PURCHASES OF EQUITY SECURITIES

As shown in the table below, cash dividends declared and paid totaled $1.565 per share for the twelve months ended December 31, 2010 and $1.075 per share for the twelve months ended December 31, 2009.

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The declaration and payment of dividends is subject to the discretion of our Board of Directors. Future dividends will depend on various factors, including our financial condition, earnings, cash requirements, legal requirements, restrictions in agreements governing our outstanding indebtedness, and other factors deemed relevant by our Board of Directors. For a discussion of the restrictions on our ability to declare and pay dividends, see Note 12.

The following table shows the high and low prices of our common stock on the NYSE for each of the last eight quarters.

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The performance graph showing the five-year cumulative total return on our common stock as compared to The Lubrizol Corporation, specialty chemical companies, and the S&P 500 is shown below. The graph assumes $100 invested on the last day of December 2005. Dividends are assumed to be reinvested quarterly.

Performance Graph

Comparison of Five-Year Cumulative Return

Performance Through December 31, 2010

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NewMarket Corporation and Subsidiaries

Five Year Summary

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Notes to the Five Year Summary

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Forward-Looking Statements

The following discussion, as well as other discussions in this Annual Report on Form 10-K, contains forward-looking statements about future events and expectations within the meaning of the Private Securities Litigation Reform Act of 1995. We have based these forward-looking statements on our current expectations and projections about future results. When we use words in this document such as “anticipates,” “intends,” “plans,” “believes,” “estimates,” “expects,” “should,” “could,” “may,” “will,” and similar expressions, we do so to identify forward-looking statements. Examples of forward-looking statements include statements we make regarding future prospects of growth in the petroleum additives market, our ability to maintain or increase our market share, and our future capital expenditure levels.

We believe our forward-looking statements are based on reasonable expectations and assumptions, within the bounds of what we know about our business and operations. However, we offer no assurance that actual results will not differ materially from our expectations due to uncertainties and factors that are difficult to predict and beyond our control.

These factors include, but are not limited to, availability of raw materials and transportation systems; supply disruptions at single sourced facilities; ability to respond effectively to technological changes in our industry; failure to protect our intellectual property rights; hazards common to chemical businesses; occurrence or threat of extraordinary events, including natural disasters and terrorist attacks; competition from other manufacturers; sudden or sharp raw materials price increases; gain or loss of significant customers; risks related to operating outside of the United States; the impact of fluctuations in foreign exchange rates; political, economic, and regulatory factors concerning our products; future governmental regulation; resolution of environmental liabilities or legal proceedings; and inability to complete recent or future acquisitions or successfully integrate recent or future acquisitions into our business. In addition, certain risk factors are also discussed in Item 1A, “Risk Factors.”

You should keep in mind that any forward-looking statement made by us in this discussion or elsewhere speaks only as of the date on which we make it. 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, you should keep in mind that any forward-looking statement made in this discussion, or elsewhere, might not occur.

OVERVIEW

We had many accomplishments in 2010 as we realized record profits and reached a return of product demand to pre-recessionary levels. Our petroleum additives business attained the highest profits on record through strong sales volumes and operating margins that reflect the value our technology-driven products provide to our customers. Our plants are running safely at high levels; we increased our production capacity in Singapore; we expanded our capability in research and development through new investment in people and facilities; and we expanded our regional presence to better meet our customers’ needs.

In addition, we completed the acquisition of the Polartech group of companies (Polartech), a leading metal working additive company, which provides Afton an opportunity to further expand in the industrial additives market.

Our Foundry Park project was operational for the entire year with long-term financing being secured in January 2010 and the tenant occupying the entire building, as expected.

Finally, our financial position remains strong, with $49 million of cash on our balance sheet. We obtained a new, unsecured $300 million revolving line of credit from a group of banks, replacing the $150 million secured facility. We also repurchased $125 million of our common stock during the year.

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RESULTS OF OPERATIONS

Revenue

Our consolidated revenue for 2010 amounted to $1,797 million, representing an increase of approximately 17% from $1,530 million in 2009. The decrease of $87 million between 2009 and 2008 was 5%.

Net sales to one customer of our petroleum additives segment exceeded 10% of consolidated revenue in 2010, 2009, and 2008. Sales to Royal Dutch Shell plc and its affiliates (Shell) amounted to $217 million (12% of consolidated revenue) in 2010, $232 million (15% of consolidated revenue) in 2009, and $261 million (16% of consolidated revenue) in 2008. These sales represent a wide-range of products sold to this customer in multiple regions of the world.

No other single customer accounted for 10% or more of our total revenue in 2010, 2009, or 2008.

The following table shows revenue by segment for each of the last three years.

Consolidated Revenue by Segment

(in millions of dollars)

Petroleum Additives—Net sales of our petroleum additives segment were higher in 2010 than in 2009, while 2009 petroleum additives net sales were lower than 2008.

Net sales in 2010 of $1,774 million were $256 million or 17% higher than 2009 net sales of $1,518 million. The increase in net sales reflects higher total product shipments of 12%, including the benefit of Polartech shipments during 2010. The increase in product shipments was across most product lines, but primarily in the lubricant additives product lines. Selling prices were also favorable for 2010 as compared to 2009. An unfavorable foreign currency impact of $6 million partially offset the increase in product shipments and selling prices. While recovering in 2009 from the worldwide economic slowdown, product shipments were weaker than normal during the first half of 2009. We believe the overall demand for petroleum additive products has recovered from recessionary effects and are now at levels consistent with normal market demands.

Net sales in 2009 of $1,518 million were $86 million or 5% lower than the 2008 amount of $1,604 million. The decrease between the two years reflects lower total product shipments, as well as a significant unfavorable foreign currency impact of $21 million. Product shipments were 9% lower when comparing 2009 and 2008. The decrease in shipments was primarily in the lubricant additives product lines, which was partially offset by a modest increase in fuel additives product lines shipments. While product shipments were lower when comparing the two years, when comparing the second half of each year, shipments increased 6% in 2009 over 2008. The unfavorable impact on net sales between 2009 and 2008 from shipments was partially offset by higher selling prices, which were implemented in 2008. The unfavorable impact from foreign currency reflects the strengthening of the U.S. Dollar between 2009 and 2008 versus the other currencies in which we conduct business.

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The approximate components of the petroleum additives increase in net sales of $256 million when comparing 2010 to 2009 and the decrease in net sales of $86 million when comparing 2009 to 2008 are shown below in millions.

Real Estate Development Segment—The revenue of $11 million for the real estate development segment represents the rental of the office building, which was constructed by Foundry Park I. The building was completed in late 2009, and we began recognizing rental revenue in January 2010.

Segment Operating Profit

NewMarket evaluates the performance of the petroleum additives business and the real estate development business based on segment operating profit. NewMarket Services departmental and other expenses are billed to NewMarket and each subsidiary pursuant to services agreements between the companies. Depreciation on segment property, plant, and equipment, as well as amortization of segment intangible assets is included in the segment operating profit.

The “All other” category includes the continuing operations of the TEL business (primarily sales of TEL in North America), as well as certain contract manufacturing Ethyl provides to Afton and to third parties.

The table below reports operating profit by segment for the last three years.

Segment Operating Profit

(in millions of dollars)

Petroleum Additives—The petroleum additives operating profit increased $19 million when comparing 2010 and 2009. The operating profit margin was 16.9% for 2010 and 18.4% for 2009. When compared to 2009 operating profit levels, the 2010 results are higher across the lubricant additives product lines, but lower across the fuel additives product lines. Substantially increased product shipments and somewhat higher selling prices, as well as the benefit of the Polartech acquisition, as discussed in the Revenue section above, were significant favorable factors in the operating profit when compared to 2009. Partially offsetting these favorable factors on operating profit, were unfavorable impacts from margin compression, as well as planned additional spending in selling, general, and administrative expenses. While operating profit improved in 2010 over 2009, the operating profit margin was unfavorable when comparing the two years. The lower 2010 operating profit margin reflects increased raw material costs and less favorable product mix resulting from the decrease of shipments of certain high margin products. In response to the increase of raw material costs during 2010, we have been implementing selling price increases.

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The petroleum additives operating profit increased $150 million when comparing 2009 and 2008. The operating profit margin of 18.4% for 2009 compares to 8.1% for 2008. The 2008 results included a gain of $3 million resulting from a legal settlement related to raw materials. The 2009 results are significantly higher across all product lines. The most significant factors when comparing operating profit and the operating profit margins between 2009 and 2008 were higher selling prices, as discussed in the Revenue section above, and lower raw material costs. While partially offset by selling price reductions made during 2009, the overall increase in selling prices for 2009 is the result of actions taken throughout 2008 to raise selling prices in response to the then increasing raw material costs. The key unfavorable factor in operating profit results between 2009 and 2008 was lower product shipments, also discussed in the Revenue section. During the second half of 2009, we experienced increasing raw material costs and tightening in the availability of certain raw materials.

Finally, our selling, general, and administrative expenses (SG&A), together with research, development, and testing expenses (R&D), were $25 million, or 14%, higher in 2010 than 2009, and $2 million, or 1%, higher in 2009 than 2008.

In 2010, SG&A increased approximately $19 million, or 21%, over 2009 levels. The increase was primarily the result of certain growth-related costs, largely reflecting the inclusion of the Polartech operations in 2010, as well as higher personnel-related costs and professional fees. SG&A was approximately $3 million, or 3%, lower when comparing 2009 and 2008. The decrease resulted primarily from favorable foreign currency, partially offset by higher personnel-related costs. Total R&D for petroleum additives was $91 million in 2010, $86 million in 2009, and $82 million in 2008. We continue to invest in SG&A and R&D to support our customers’ programs and to develop the technology required to remain a leader in this industry. We expect this to continue for the foreseeable future. R&D related to new products and processes was $45 million in 2010, $46 million in 2009, and $44 million in 2008. All of our R&D was related to the petroleum additives segment.

Real estate development—Operating profit for the real estate development segment was $7 million for 2010, compared to a loss of $1 million for 2009. During 2009, the office building was under construction resulting in no rental revenue and limited non-capital expenses.

The following discussion references certain captions on the Consolidated Statements of Income.

Interest and Financing Expenses

Interest and financing expenses were $17.3 million in 2010, $11.7 million in 2009, and $12.0 million in 2008. The increase in interest and financing expenses between 2010 and 2009 was primarily related to the mortgage loan on the Foundry Park I office building, as well as higher average outstanding debt on the revolving credit facility during 2010. Prior to obtaining the mortgage loan in January 2010, the interest and financing expenses for the construction phase of the office building were capitalized. The small decrease in interest and financing expenses between 2009 and 2008 resulted primarily from lower average debt between the two years, as we had no drawn debt on the revolving credit facility during most of 2009. The lower debt was partially offset by slightly higher interest rates and higher amortization of deferred financing costs in 2009 due to the cost related to increased commitment levels achieved on the revolving credit facility.

Other (Expense) Income, Net

Other (expense) income, net was $10 million expense in 2010, $11 million expense in 2009, and $1 million income in 2008. The 2010 and 2009 amounts primarily represent the loss on an interest rate swap which is recorded at fair value. See Note 16 for additional information on the interest rate swap. The 2008 amount resulted primarily from investment income.

Income Tax Expense

Income tax expense was $83 million in 2010, $77 million in 2009, and $32 million in 2008. The effective tax rate was 31.9% in 2010, 32.2% in 2009, and 30.5% in 2008. The 2010 and 2008 effective income tax rates include the

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benefit of higher income in foreign jurisdictions with lower tax rates. The 2010 and 2009 effective income tax rates include a substantial benefit from the domestic manufacturing tax deduction. The effective tax rate in each year reflects certain foreign and other tax benefits. See Note 22 for further details on income taxes.

The increase in income before income tax expense between 2009 and 2010 resulted in an increase in tax expense of $7 million. This was partially offset by a reduction in tax expense of $1 million due to the lower effective tax rate in 2010 compared to 2009.

The increase in income before income tax expense between 2008 and 2009 resulted in an increase in tax expense of $41 million. The remaining change in income tax expense resulted from the higher effective tax rate, which primarily reflects the higher proportion of domestic earnings in 2009, which are subject to both U.S. federal and state income taxes.

Our deferred taxes are in a net asset position. Based on current forecast operating plans and historical profitability, we believe that we will recover nearly the full benefit of our deferred tax assets and have, therefore, recorded an immaterial valuation allowance at a foreign subsidiary.

CASH FLOWS DISCUSSION

We generated cash from operating activities of $165 million in 2010, $224 million in 2009, and $21 million in 2008.

During 2010, we utilized the $165 million of cash generated from operations and $103 million of cash on hand, along with the borrowing of $68 million under the mortgage loan for Foundry Park I and $4 million under the revolving credit facility to fund several key initiatives. These initiatives included repaying the Foundry Park I construction loan of $99 million. We also funded the acquisition of Polartech for $41 million, funded capital expenses of $36 million, repurchased $122 million of our common stock, paid $23 million of dividends on our common stock, made a net deposit of $8 million related to the Goldman Sachs interest rate swap, paid $4 million for debt issuance costs, and made a net payment of $2 million for settlements under the mortgage loan interest rate swap. Further information on the Goldman Sachs and mortgage loan interest rate swaps is in Note 16. These cash flows included an unfavorable foreign currency impact on cash of $2 million. Cash flows from operating activities included a decrease of $63 million resulting from higher working capital requirements and payments of $22 million for our pension and postretirement plans.

During 2009, we used the cash generated from operations, along with $56 million of draws under the Foundry Park I construction loan and $11 million from a net return of funds for the deposit related to an interest rate lock agreement to fund $89 million of capital expenditures, payoff the outstanding balance of $42 million on the revolving credit agreement, and make a net deposit of $15 million related to the Goldman Sachs interest rate swap. We also paid dividends on our common stock of $16 million. These items, including a favorable fluctuation in foreign currency rates of $5 million, resulted in an increase of $130 million in cash and cash equivalents. Cash flows from operating activities included an increase of $23 million resulting from lower working capital requirements, as well as payments of $25 million for our pension and postretirement plans.

As of December 31, 2008, we had $42 million outstanding under our revolving credit agreement and had made draws of $38 million under the Foundry Park I construction loan. We used these borrowings, as well as cash provided from operating activities to fund $75 million of capital expenditures, $27 million for repurchase of our common stock, $15 million for dividends on our common stock, and $15 million for the acquisition of a business. In addition, we also funded $10 million cash for the net deposit on an interest rate lock agreement. Our book overdraft decreased $5 million. These items, combined with an unfavorable foreign exchange effect on cash of $4 million, resulted in a decrease in cash and cash equivalents of $50 million. Cash flows from operating activities included a decrease of $91 million due to higher working capital requirements, payments of $17 million to fund our pension and postretirement plans, and proceeds of $3 million for a legal settlement related to raw materials. The higher working capital requirements during the year primarily reflected a reduction in outstanding accounts payable at the end of 2008, as well as higher inventory costs during the year.

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We expect that cash from operations, together with borrowing available under our senior credit facility, will continue to be sufficient to cover our operating expenses and planned capital expenditures for at least the next twelve months.

FINANCIAL POSITION AND LIQUIDITY

Cash

At December 31, 2010, we had cash and cash equivalents of $49 million as compared to $152 million at the end of 2009.

At both December 31, 2010 and December 31, 2009, we had a book overdraft for some of our disbursement cash accounts. A book overdraft represents disbursements that have not cleared the bank accounts at the end of the reporting period. We transfer cash on an as-needed basis to fund these items as they clear the bank in subsequent periods.

Debt

Senior Notes—The 7.125% senior notes are our senior unsecured obligations and are jointly and severally guaranteed on an unsecured basis by all of our existing and future 100% owned by NewMarket domestic restricted subsidiaries. We incurred financing costs of approximately $3 million in 2006 related to the 7.125% senior notes, which are being amortized over ten years.

The 7.125% senior notes and the subsidiary guarantees rank:

The indenture governing the 7.125% senior notes contains covenants that, among other things, limit our ability and the ability of our restricted subsidiaries to:

The more restrictive and significant of the covenants under the indenture include a minimum fixed charge ratio of 2.00, as well as a limitation on restricted payments, as defined in the indenture. Our fixed charge coverage ratio was 19.46 at December 31, 2010 and 22.62 at December 31, 2009. In addition, we would have been permitted to make additional restricted payments in the amount of approximately $50 million at December 31, 2010 and $84 million at December 31, 2009. In January 2011, we obtained consents from the holders of the senior notes to modify the formula for calculating the capacity under the senior notes to make certain restricted payments. Had the consent been effective at year-end 2010, we would have been permitted to make additional restricted payments in the amount of approximately $150 million at December 31, 2010.

We were in compliance with all covenants under the indenture governing the 7.125% senior notes as of December 31, 2010 and December 31, 2009.

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Senior Credit Facility—On November 12, 2010, we entered into a Credit Agreement (Credit Agreement). The Credit Agreement provides for a $300 million, multicurrency revolving credit facility, with a $100 million sublimit for multicurrency borrowings, a $100 million sublimit for letters of credit, and a $20 million sublimit for swingline loans. The Credit Agreement includes an expansion feature, which allows us, subject to certain conditions, to request to increase the aggregate amount of the revolving credit facility or obtain incremental term loans in an amount up to $150 million. We used the proceeds from the Credit Agreement to pay off the outstanding balance of $35 million on our previous revolving credit agreement. Our previous revolving credit agreement was terminated on November 12, 2010.

At December 31, 2010, we had outstanding letters of credit of $5.1 million and $4 million borrowed, resulting in the unused portion of the senior credit facility amounting to $290.9 million. For further information on the outstanding letters of credit, see Note 18.

We paid financing costs in 2010 of approximately $2.5 million related to this agreement and carried over deferred financing costs from our previous revolving credit agreement of approximately $700 thousand, resulting in total deferred financing costs of $3.2 million, which we are amortizing over the term of the Credit Agreement.

The obligations under the Credit Agreement are unsecured and are fully and unconditionally guaranteed by NewMarket and the subsidiary guarantors. The revolving credit facility matures on November 12, 2015.

Borrowing made under the revolving credit facility bear interest at an annual rate equal to, at our election, either (1) the ABR plus the Applicable Rate (solely in the case of loans denominated in U.S. dollars to NewMarket) or (2) the Adjusted LIBO Rate plus the Applicable Rate. ABR is the greatest of (i) the rate of interest publicly announced by the Administrative Agent as its prime rate, (ii) the federal funds effective rate from time to time plus 0.5% or (iii) the Adjusted LIBO Rate for a one month interest period plus 1%. The Adjusted LIBO Rate means the rate at which Eurocurrency deposits in the London interbank market for certain periods (as selected by NewMarket) are quoted, as adjusted for statutory reserve requirements for Eurocurrency liabilities and other applicable mandatory costs. Depending on our Leverage Ratio, the Applicable Rate ranges from 1.00% to 1.50% for loans bearing interest based on the ABR and from 2.00% to 2.50% for loans bearing interest based on the Adjusted LIBO Rate. At December 31, 2010, the Applicable Rate was 1.00% for loans bearing interest based on the ABR and 2.00% for loans bearing interest based on the Adjusted LIBO Rate. Our average interest rate under the Credit Agreement was 3.6% during 2010, while the combined average interest rate under both revolving credit agreements in effect during 2010 was 4.5%. At December 31, 2010, the interest rate was 4.25%.

The Credit Agreement contains financial covenants that require NewMarket to maintain a consolidated Leverage Ratio (as defined in the Credit Agreement) of no more than 3.00 to 1.00 and a consolidated Interest Coverage ratio (as defined in the Credit Agreement) of no less than 3.00 to 1.00, as of the end of each fiscal quarter ending on and after December 31, 2010. At December 31, 2010, the Leverage Ratio was 0.74 and the Interest Ratio was 16.50.

We were in compliance with all covenants under the Credit Agreement at December 31, 2010.

Mortgage Loan Agreement—On January 28, 2010, Foundry Park I entered into a mortgage loan agreement in the amount of $68.4 million. The loan, which is collateralized by the Foundry Park I office building, is for a period of five years, with two thirteen-month extension options. NewMarket Corporation is fully guaranteeing the loan. The mortgage loan bears interest at a variable rate of LIBOR plus a margin of 400 basis points, with a minimum LIBOR of 200 basis points. At December 31, 2010, the interest rate was 4.26%. Principal payments on the loan are being made monthly based on a 15 year amortization schedule, with all remaining amounts due in five years, unless we exercise the extension options. We incurred financing costs of $1.5 million related to the mortgage loan, which are being amortized over five years.

Concurrently with the closing of the mortgage loan, Foundry Park I obtained an interest rate swap to effectively convert the variable interest rate in the loan to a fixed interest rate by setting LIBOR at 2.642% for five years. Further information on the interest rate swap is in Note 16.

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Construction Loan Agreement—Foundry Park I and NewMarket Corporation entered into a construction loan agreement with a group of banks on August 7, 2007 to borrow up to $116 million to fund the development and construction of an office building. The construction loan bore interest at LIBOR plus a margin of 140 basis points. The term of the loan was for a period of 36 months and was unconditionally guaranteed by NewMarket Corporation. No principal reduction payment became due during the construction period. As a condition of the construction loan and concurrently with the closing of the loan, Foundry Park I also obtained interest rate risk protection in the form of an interest rate swap. See Note 16. On January 29, 2010, we paid off the outstanding balance of $99.1 million of the construction loan with proceeds of $68.4 million from the mortgage loan agreement (discussed above) and cash on hand of $30.7 million.

Other Borrowings—One of our subsidiaries in India has a short-term line of credit of 110 million Rupees for working capital purposes. The average interest rate was approximately 9.8% during 2010 and 9.96% at December 31, 2010. The outstanding balance of $1.5 million at December 31, 2010 is due during 2011.

***

We had combined current and noncurrent long-term debt of $222 million at December 31, 2010 and $250 million at December 31, 2009. The decrease in debt resulted from the payment of the outstanding balance of $99 million on the construction loan, which was partially offset by net borrowings of $66 million on the mortgage loan, $4 million on the revolving credit facility, and $1 million under the line of credit of our subsidiary in India. In addition, during 2010, we also paid $800 thousand on our capital lease obligations.

As a percentage of total capitalization (total debt and shareholders’ equity), our total debt decreased from 35.3% at the end of 2009 to 31.1% at the end of 2010. The change in the percentage was primarily the result of the increase in shareholders’ equity and the decrease in debt. The increase in shareholders’ equity reflects our earnings, partially offset by the impact of dividend payments and the stock repurchase program. Normally, we repay long-term debt with cash from operations or refinancing activities.

Working Capital

At December 31, 2010, we had working capital of $396 million, resulting in a current ratio of 2.92 to 1. Our working capital at year-end 2009 was $405 million resulting in a current ratio of 3.05 to 1.

The change in the working capital ratio primarily reflects lower cash levels and prepaid expenses, as well as higher accounts payable at December 31, 2010. These were offset by higher accounts receivable and inventories, as well as lower current portion of long-term debt at December 31, 2010. The decrease in prepaid expenses reflects a reduction of prepaid taxes on intercompany profit in inventory, while the fluctuation in accounts payable results from normal differences in timing of payments and increased inventory purchases. The increase in inventories primarily reflects higher quantities at certain locations in response to demand for our products. The increase in accounts receivables primarily reflects higher sales levels when comparing fourth quarter 2010 and fourth quarter 2009, as well as an increase in our domestic tax receivable position. The decrease in the current portion of long-term debt resulted from the January 2010 payment of the construction loan and subsequent entry into the mortgage loan. The changes in the working capital components include a foreign currency impact, as well as the impact of Polartech since the March 2010 acquisition.

Capital Expenditures

We expect capital expenditures to be approximately $45 million to $50 million in 2011. We expect to continue to finance this capital spending through cash provided from operations, together with borrowing available under our senior credit facility.

Environmental Expenses

We spent approximately $18 million in 2010 and $17 million in both 2009 and 2008 for ongoing environmental operating and clean-up costs, excluding depreciation of previously capitalized expenditures. These environmental

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operating and clean-up expenses are included in cost of goods sold. Further, we expect to continue to fund these costs through cash provided by operations.

Contractual Obligations

The table below shows our year-end contractual obligations by year due.

Pension and Postretirement Benefit Plans

Our U.S. and foreign benefit plans are discussed separately below. Our U.S. pension and postretirement plans are similar and therefore, the information discussed below applies to all of our U.S. benefit plans. Our foreign plans are quite diverse, and the actual assumptions used by the various foreign plans are based upon the circumstances of each particular country and retirement plan. The discussion below surrounding our foreign retirement benefits focuses only on our pension plan in the United Kingdom (U.K.) which represents the majority of the impact on our financial statements from foreign pension plans. We use a December 31 measurement date to determine our pension and postretirement expenses and related financial disclosure information. Additional information on our pension and postretirement plans is in Note 19.

U.S. Pension and Postretirement Benefit Plans—The following information applies to our U.S. pension and postretirement benefit plans. The average remaining service period of active participants for our U.S. plans is 12.9 years, while the average remaining life expectancy of inactive participants is 24.9 years. We utilize the Optional Combined Mortality Tables for males and females based on the RP-2000 Mortality Tables projected with Scale AA as published by the IRS on February 2, 2007 in determining the impact of the U.S. benefit plans on our financial statements.

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Investment Return and Asset Allocation—We periodically review our assumptions for the long-term expected return on pension plan assets. As part of the review and to develop expected rates of return, we considered a stochastic analysis of expected returns based on the U.S. plans’ asset allocation as of both January 1, 2009 and January 1, 2010. This forecast reflects our expected long-term rates of return for each significant asset class or economic indicator. As of January 1, 2011, the expected rates were 8.4% for U.S. large cap stocks, 3.6% for U.S. long-term corporate bonds, and 2.1% for inflation. The range of returns developed relies both on forecasts and on broad-market historical benchmarks for expected return, correlation, and volatility for each asset class.

Our asset allocation is predominantly weighted toward equities. Through our ongoing monitoring of our investments, we have determined that we should maintain the expected long-term rate of return for our U.S. plans at 9.0% at December 31, 2010.

An actuarial gain, where the actual return was higher than the expected return, occurred during 2010 and 2009 resulting in the actual investment return being higher than the expected return for all of our U.S. plans by approximately $4 million in 2010 and $10 million in 2009. An actuarial loss, where the actual return was lower than the expected return, occurred during 2008 resulting in the actual investment return being approximately $38 million lower than the expected return for all of our U.S. pension plans. This is consistent with the steep decline in the global stock markets during 2008. Investment gains and losses enter earnings on an amortized basis over a period of years so that the 2008 investment losses caused an increase in expense of approximately $1.5 million in 2010, as well as an expected $1.5 million increase in expense in 2011. We expect that there will be continued volatility in pension expense as actual investment returns vary from the expected return, but we continue to believe the potential long-term benefits justify the risk premium for equity investments.

Pension expense and the retiree medical portion of postretirement expense are sensitive to changes in the expected return on assets. For example, decreasing the expected rate of return by 25 basis points to 8.75% for pension assets and 6.0% for postretirement benefit assets (while holding other assumptions constant) would increase the forecasted 2011 expense for our U.S. pension and postretirement plans by approximately $375 thousand. Similarly, a 25 basis point increase in the expected rate of return to 9.25% for pension assets and 6.5% for postretirement benefit assets (while holding other assumptions constant) would reduce forecasted 2011 pension and postretirement expense by approximately $375 thousand.

Discount Rate Assumption—We utilize a proprietary model maintained by our actuarial consultant in developing the discount rate assumption. The model determines the single effective discount rate for a unique hypothetical portfolio constructed from investment-grade bonds that, in aggregate, match the projected cash flows of each of our retirement plans. Our discount rate is developed based on the hypothetical portfolio on the last day of December. The discount rate at December 31, 2010 was 5.875% for all plans.

Pension and postretirement benefit expense is also sensitive to changes in the discount rate. For example, decreasing the discount rate by 25 basis points to 5.625% (while holding other assumptions constant) would increase the forecasted 2011 expense for our U.S. pension and postretirement benefit plans by approximately $800 thousand. A 25 basis point increase in the discount rate to 6.125% would reduce forecasted 2011 pension and postretirement benefit expense by approximately $800 thousand.

Rate of Projected Compensation Increase—We have decreased our rate of projected compensation increase at December 31, 2010 from 4.00% to 3.50%. The rate assumption was based on an analysis of our projected compensation increases for the foreseeable future.

Liquidity—Cash contribution requirements to the pension plan are sensitive to changes in assumed interest rates and investment gains or losses in the same manner as pension expense. We expect our aggregate cash contributions, before income taxes, to the U.S. pension plans will be approximately $23 million in 2011. We expect our contributions to the postretirement benefit plans will be approximately $2 million.

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Other Assumptions—During 2008, we reviewed our assumption for the health care cost trend rate. Based on actual cost experience, we restarted our overall assumption for health care cost increases at 10%, scaling down to 5.0% by 2018. We maintained this health care cost trend assumption for 2010 resulting in an assumed rate of 9.0% for 2010 and 8.5% for 2011. The assumption includes temporarily higher cost increases for our retiree prescription drug coverage.

At December 31, 2010, our expected long-term rate of return on our postretirement plans was 6.25%. This rate varies from the pension rate of 9.0% primarily because of the difference in investment of assets. The assets of the postretirement plan are held in an insurance contract, which results in a lower assumed rate of investment return.

Foreign Pension Benefit Plans – As discussed above, our foreign pension plans are quite diverse. The following information applies only to our U.K. pension plan, which represents the majority of the impact on our financial statements from our foreign pension plans. The average remaining service period for our U.K. plan is 13 years, while the average remaining life expectancy is 37 years. We utilize PA92 mortality tables which allow for future “medium cohort” projected improvements in life expectancy with a minimum 1% per year improvement and a -1 year age rating based on the membership of the plan, in determining the impact of the U.K. pension plans on our financial statements.

Investment Return Assumptions and Asset Allocation—We periodically review our assumptions for the long-term expected return on the U.K. pension plan assets. The expected long-term rate of return is based on both the asset allocation, as well as yields available in the U.K. markets.

The target asset allocation in the U.K. is to be invested 55% in equities, 40% in a mixture of government and corporate bonds, and 5% in a pooled investment property fund, although the actual allocation at the end of 2010 was 58% in equities, 37% in government and corporate bonds, and 5% in a pooled investment property fund. Based on the actual asset allocation and the expected yields available in the U.K. markets, the expected long-term rate of return for the U.K. pension plan was 6.0% at December 31, 2010.

An actuarial gain occurred during 2010 as the actual investment return exceeded the expected investment return in 2010 by approximately $5 million for our U.K. pension plan. This compares to an actuarial gain of $7 million in 2009 and an actuarial loss of $15 million in 2008. Investment gains and losses enter earnings on an amortized basis resulting in increased expense of approximately $1 million in 2010, as well as an expected $800 thousand increased expense in 2011. We expect that there will be continued volatility in pension expense as actual investment returns vary from the expected return, but we continue to believe the potential benefits justify the risk premium for the target asset allocation.

Pension expense is sensitive to changes in the expected return on assets. For example, decreasing the expected rate of return by 25 basis points to 5.75% (while holding other assumptions constant) would increase the forecasted 2011 expense for our U.K. pension plan by approximately $200 thousand. Similarly, a 25 basis point increase in the expected rate of return to 6.25% (while holding other assumptions constant) would reduce forecasted 2011 pension expense by approximately $200 thousand.

Discount Rate Assumption—We utilize a yield curve based on AA-rated corporate bond yields constructed from iBoxx indices in developing a discount rate assumption (extrapolated at longer terms based on the corresponding swap yield curve). The yield appropriate to the duration of the U.K. plan liabilities is then used. The discount rate at December 31, 2010 was 5.4%.

Pension expense is also sensitive to changes in the discount rate. For example, decreasing the discount rate by 25 basis points to 5.15% (while holding other assumptions constant) would increase the forecasted 2011 expense for our U.K. pension plans by approximately $200 thousand. A 25 basis point increase in the discount rate to 5.65% would reduce forecasted 2011 pension expense by approximately $200 thousand.

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Rate of Projected Compensation Increase—We have increased our rate of projected compensation increase at December 31, 2010 to 5.10% from 4.55%. The rate assumption was based on an analysis of our projected compensation increases for the foreseeable future.

Liquidity—Cash contribution requirements to the U.K. pension plan are sensitive to changes in assumed interest rates in the same manner as pension expense. We expect our aggregate U.K. cash contributions, before income taxes, will be approximately $5 million in 2011.

OUTLOOK

We begin 2011 with high confidence in our business, as 2010 proved to be a record setting year. We believe the fundamentals of how we run our business—a safety-first culture, customer-focused solutions, technology-driven product offerings, world-class supply chain capability, and a regional organizational structure to better understand our customers’ needs—will continue to pay dividends to all of our stakeholders.

We expect 2011 to be a more profitable year than 2010, as we project an increase in both revenue and net income. Over the past several years, we have made significant investments to expand our capabilities around the globe. These investments have been in people, research centers, and production capacity. We intend to use these new capabilities to improve our ability to deliver the goods and service that our customers value and to expand our business and profits.

In summary, we expect the business practices that have produced the outstanding results of the past two years will continue next year. We expect that the macro-business environment in which we operate will improve as the world economies continue to strengthen.

Our business continues to generate significant amounts of cash beyond what is necessary for the expansion and growth of our current product lines. We regularly review the many internal opportunities which we have to utilize this cash, both from a geographical and product line point of view. We have increased our efforts in investigating potential acquisitions as both a use for this cash and to generate shareholder value. Our primary focus in the acquisition area remains on the petroleum additives industry. It is our view that this industry will provide the greatest opportunity for a good return on our investment while minimizing risk. We remain focused on this strategy and will evaluate any future opportunities. Nonetheless, we are patient in this pursuit and intend to make the right acquisition when the opportunity arises. Until an acquisition materializes, we will build cash on our balance sheet and will continue to evaluate all alternative uses of that cash to enhance shareholder value, including stock repurchases and dividends.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

It is our goal to clearly present our financial information in a manner that enhances the understanding of our sources of earnings and cash flows, as well as our financial condition. We do this by including the information required by the SEC, as well as additional information that gives further insight into our financial operations.

Our financial report includes a discussion of our accounting principles, as well as methods and estimates used in the preparation of our financial statements. We believe these discussions and statements fairly represent the financial position and operating results of our company. The purpose of this portion of our discussion is to further emphasize some of the more critical areas where a significant change in facts and circumstances in our operating and financial environment could cause a change in reported financial results.

Intangibles (net of amortization) and Goodwill

We have certain identifiable intangibles, as well as goodwill, amounting to $47 million at year-end 2010 that are discussed in Note 10. These intangibles relate to our petroleum additives business and, except for the goodwill, are being amortized over periods with up to approximately twenty years of remaining life. We continue to assess

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the market related to these intangibles, as well as their specific values, and have concluded the values and amortization periods are appropriate. We also evaluate these intangibles for any potential impairment when significant events or circumstances occur that might impair the value of these assets. These evaluations continue to support the value at which these identifiable intangibles are carried on our financial statements. In addition, none of our reporting units with goodwill is at risk of failing the goodwill impairment test. However, if conditions were to substantially deteriorate in the petroleum additives market, it could possibly cause a reduction in the periods of this amortization charge or result in a noncash write-off of a portion of the intangibles’ carrying value. A reduction in the amortization period would have no effect on cash flows. We do not anticipate such a change in the market conditions.

Environmental and Legal Proceedings

We have made disclosure of our environmental matters in Item 1 of this Annual Report on Form 10-K, as well as in the Notes to Consolidated Financial Statements. We believe our environmental accruals are appropriate for the exposures and regulatory guidelines under which we currently operate. While we currently do not anticipate significant changes to the many factors that could impact our environmental requirements, we continue to keep our accruals consistent with these requirements as they change.

Also, as noted in the discussion of “Legal Proceedings” in Item 3 of this Annual Report on Form 10-K, while it is not possible to predict or determine with certainty the outcome of any legal proceeding, it is our opinion, based on our current knowledge, that we will not experience any material adverse effects on our results of operations or financial condition as a result of any pending or threatened proceeding.

Pension Plans and Other Postretirement Benefits

We use assumptions to record the impact of the pension and postretirement plans in the financial statements. These assumptions include the discount rate, expected long-term rate of return on plan assets, rate of compensation increase, and health-care cost trend rate. A change in any one of these assumptions could result in different results for the plans. We develop these assumptions after considering available information that we deem relevant. Information is provided on the pension and postretirement plans in Note 19. In addition, further disclosure on the effect of changes in these assumptions is provided in the “Financial Position and Liquidity” section of Item 7.

Income Taxes

We file consolidated U.S. federal and state income tax returns, as well as individual foreign income tax returns, under which assumptions may be made to determine the deductibility of certain costs. We make estimates related to the impact of tax positions taken on our financial statements when we believe the tax position is likely to be upheld on audit. In addition, we make certain assumptions in the determination of the estimated future recovery of deferred tax assets.

We are exposed to many market risk factors, including fluctuations in interest and foreign currency rates, as well as changes in the cost of raw materials and marketable security prices. These risk factors may affect our results of operations, cash flows, and financial position.

We manage these risks through regular operating and financing methods, including the use of derivative financial instruments. When we have derivative instruments, they are with major financial institutions and are not for speculative or trading purposes. Also, as part of our financial risk management, we regularly review significant contracts for embedded derivatives and record them in accordance with accounting standards.

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The following analysis presents the effect on our earnings, cash flows, and financial position as if the hypothetical changes in market risk factors occurred at year-end 2010. We analyzed only the potential impacts of our hypothetical assumptions. This analysis does not consider other possible effects that could impact our business.

Interest Rate Risk

At December 31, 2010, we had total debt of $222 million. Of the total debt, $150 million is at fixed rates. There was no interest rate risk at the end of the year associated with the fixed rate debt.

At year-end 2010, we had $4 million of outstanding variable rate debt under our revolving credit facility. Holding all other variables constant, if the variable portion of the interest rate on the revolving credit facility hypothetically increased 10% (approximately 33 basis points), the effect on our earnings and cash flows would have been higher interest expense of approximately $13 thousand.

Substantially, the remaining amount of debt represents the outstanding balance of the mortgage loan, which bears interest at a variable rate of LIBOR plus a margin of 400 basis points. Concurrently with the closing of the mortgage loan, Foundry Park I obtained an interest rate swap to effectively convert the variable interest rate of the loan to a fixed interest rate by setting LIBOR at 2.642% for five years. Accordingly, in combination, there is no interest rate risk associated with the mortgage loan and related interest rate swap, other than the change in the value of the interest rate swap due to changes in the yield curve. The fair value amounted to a liability of $3 million at December 31, 2010. Any change in fair value is recognized immediately in accumulated other comprehensive income, to the degree of effectiveness of the swap. With other variables held constant, a hypothetical 50 basis point adverse parallel shift in the LIBOR yield curve would have resulted in an increase of approximately $1.2 million in the fair value liability of the mortgage loan interest rate swap at December 31, 2010.

We recorded the Goldman Sachs interest rate swap at fair value, which amounted to a liability of $19 million at December 31, 2010. Any change in fair value is recognized immediately in earnings. With other variables held constant, a hypothetical 50 basis point adverse parallel shift in the LIBOR yield curve would have resulted in an increase of approximately $5 million in the liability fair value of the interest rate swap with Goldman Sachs. See Note 16 for further information.

A hypothetical 10% decrease in interest rates, holding all other variables constant, would have resulted in a change of $5 million in fair value of our debt at year-end 2010.

Foreign Currency Risk

We sell to customers in foreign markets through our foreign subsidiaries, as well as through export sales from the United States. These transactions are often denominated in currencies other than the U.S. Dollar. Our primary currency exposures are the European Union Euro, British Pound Sterling, Japanese Yen, and Canadian Dollar. We sometimes enter into forward contracts as hedges to minimize the fluctuation of intercompany accounts receivable denominated in foreign currencies. At December 31, 2010, we had no outstanding forward contracts.

Raw Material Price Risk

We utilize a variety of raw materials in the manufacture of our products, including base oil, polyisobutylene, antioxidants, alcohols, solvents, sulfonates, friction modifiers, olefins and copolymers. Our profitability is sensitive to changes in the costs of these materials caused by changes in supply, demand, or other market conditions, over which we have little or no control. If we experience sudden or sharp increases in the cost of our raw materials, we may not be able to pass on these increases in whole or in part to our customers. Political and economic conditions in the Middle East and Latin America have caused and may continue to cause the cost of our raw materials to fluctuate. War, armed hostilities, terrorist acts, civil unrest or other incidents may also cause a sudden or sharp increase in the cost of our raw materials. If we cannot pass on to our customers any future increases in raw material costs in the form of price increases for our products, there will be a negative impact on operating profit.

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Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of NewMarket Corporation:

In our opinion, the accompanying consolidated balance sheets and the related consolidated statements of income, shareholders’ equity and cash flows present fairly, in all material respects, the financial position of NewMarket Corporation and its subsidiaries at December 31, 2010 and 2009, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2010 in conformity with accounting principles generally accepted in the United States of America. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2010, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is responsible for these financial statements, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Report on Internal Control Over Financial Reporting appearing under Item 9A. Our responsibility is to express opinions on these financial statements and on the Company’s internal control over financial reporting based on our integrated audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

A company’s internal control over financial reporting is a process designed 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. A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ PricewaterhouseCoopers LLP

Richmond, Virginia

February 22, 2011

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NewMarket Corporation and Subsidiaries

Consolidated Statements of Income

See accompanying Notes to Consolidated Financial Statements.

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NewMarket Corporation and Subsidiaries

Consolidated Balance Sheets