NEU / NewMarket Corporation - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

NewMarket Corporation
US ˙ NYSE ˙ US6515871076

Mga Batayang Estadistika
LEI 54930082CG88ERDREQ47
CIK 1282637
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to NewMarket Corporation
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
August 7, 2025 EX-99.1

NEWMARKET CORPORATION ANNOUNCES QUARTERLY DIVIDEND

EX-99.1 Exhibit 99.1 NEWMARKET CORPORATION ANNOUNCES QUARTERLY DIVIDEND Richmond, VA, August 7, 2025 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.75 per share on the common stock of the Corporation. The dividend is payable October 1, 2025, to NewMarket shareholders of record at the close of business on September 15, 2025. NewMarket

August 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 NEWMARKET CORPORAT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

July 31, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 NEWMAR

July 31, 2025 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, Timothy K. Fitzgerald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2025 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such stat

July 31, 2025 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending June 30, 2025 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer of

July 31, 2025 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2025 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such stateme

July 31, 2025 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending June 30, 2025 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Timothy K. Fitzgerald, chief financial officer

July 30, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2025 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization) (

July 30, 2025 EX-99.1

Second Quarter Ended June 30, Six Months Ended June 30, 2025 2024 2025 2024 Net Sales: Petroleum additives $ 653,875 $ 669,826 $ 1,299,429 $ 1,347,090 Specialty materials 42,037 38,010 95,758 55,057 All other 2,597 2,392 4,268 4,817 Total $ 698,509 $

EXHIBIT 99.1 NewMarket Corporation Reports Second Quarter and First Half 2025 Results •Record First Half Net Income of $237 Million and Earnings per Share of $25.11 •First Half Petroleum Additives Operating Profit of $282 Million •First Half Specialty Materials Operating Profit of $34 Million •Strong Operating Cash Flows During the First Half Richmond, VA, July 30, 2025 – NewMarket Corporation (NY

May 22, 2025 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 FORM 11-K ý ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2024 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-32190 A. Full title of the plan and the add

April 24, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 NEWMA

April 24, 2025 EX-99.1

NEWMARKET CORPORATION ANNOUNCES QUARTERLY DIVIDEND

Exhibit 99.1 NEWMARKET CORPORATION ANNOUNCES QUARTERLY DIVIDEND Richmond, VA, April 24, 2025 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.75 per share on the common stock of the Corporation. The dividend is payable July 1, 2025, to NewMarket shareholders of record at the close of business on June 16, 2025. NewMarket Corporation is

April 24, 2025 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, Timothy K. Fitzgerald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended March 31, 2025 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

April 24, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 24, 2025 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

April 24, 2025 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending March 31, 2025 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer o

April 24, 2025 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending March 31, 2025 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Timothy K. Fitzgerald, chief financial office

April 24, 2025 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended March 31, 2025 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statem

April 23, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 23, 2025 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization)

April 23, 2025 EX-99.1

Three Months Ended March 31, 2025 2024 Net Sales: Petroleum additives $ 645,554 $ 677,264 Specialty materials 53,721 17,047 All other 1,671 2,425 Total $ 700,946 $ 696,736 Segment operating profit: Petroleum additives $ 142,107 $ 150,909 Specialty ma

EXHIBIT 99.1 NewMarket Corporation Reports First Quarter 2025 Results •Net Income of $126 Million and Earnings Per Share of $13.26 •Petroleum Additives Operating Profit of $142 Million •Specialty Materials Operating Profit of $23 Million •Funded Stock Repurchases of $57 Million Richmond, VA, April 23, 2025 – NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer, Thomas E. Gottwald,

March 12, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒        Filed by a party other than the Registrant ☐ Check

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒        Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Prox

March 12, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒        Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

February 27, 2025 EX-99.1

NEWMARKET CORPORATION INCREASES QUARTERLY DIVIDEND

Exhibit 99.1 NEWMARKET CORPORATION INCREASES QUARTERLY DIVIDEND Richmond, VA, February 27, 2025 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.75 per share on the common stock of the Corporation, an increase of $0.25, or 10%, as compared to the last quarterly dividend of $2.50 per share. The dividend is payable April 1, 2025, to NewM

February 27, 2025 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 27, 2025 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission F

February 14, 2025 EX-31.B

Date: February 14, 2025 By: /s/ Timothy K. Fitzgerald Timothy K. Fitzgerald Vice President and Chief Financial Officer

Exhibit 31(b) CERTIFICATION I, Timothy K. Fitzgerald, certify that: 1.I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2024 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statem

February 14, 2025 EX-10.15

NEWMARKET CORPORATION Restricted Stock Award Agreement

Exhibit 10.15 NEWMARKET CORPORATION Restricted Stock Award Agreement THIS AGREEMENT dated as of the [day] day of February, 2024 between NEWMARKET CORPORATION, a Virginia corporation (the “Corporation”), and [name] (“Participant”), is made pursuant and subject to the provisions of the NewMarket Corporation 2023 Incentive Compensation and Stock Plan (the “Plan”). All terms used herein that are defin

February 14, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-32190 NEWMARKET

February 14, 2025 EX-10.16

NEWMARKET CORPORATION Performance Stock Award Agreement

Exhibit 10.16 NEWMARKET CORPORATION Performance Stock Award Agreement THIS AGREEMENT dated as of the 9th day of February, 2024, between NEWMARKET CORPORATION, a Virginia corporation (the “Corporation”), and [name] (“Participant”), is made pursuant and subject to the provisions of the NewMarket Corporation 2023 Incentive Compensation and Stock Plan (the “Plan”). All terms used herein that are defin

February 14, 2025 EX-32.B

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 10-K of NewMarket Corporation (the “Company”) for the period ending December 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Timothy K. Fitzgerald, chief financial office

February 14, 2025 EX-31.A

Date: February 14, 2025 By: /s/ Thomas E. Gottwald Thomas E. Gottwald Chairman of the Board, President, and Chief Executive Officer

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2024 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statement

February 14, 2025 EX-19

NEWMARKET CORPORATION INSIDER TRADING POLICY Effective: December 12, 2024

Exhibit 19 NEWMARKET CORPORATION INSIDER TRADING POLICY Effective: December 12, 2024 Purpose This Insider Trading Policy (the “Policy”) provides guidelines with respect to transactions in the securities of NewMarket Corporation (the “Company”) and the handling of confidential information about the Company and its subsidiaries and the companies with which the Company engages in transactions or does business.

February 14, 2025 EX-32.A

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 10-K of NewMarket Corporation (the “Company”) for the period ending December 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer o

February 14, 2025 EX-21

The following is a list of the subsidiaries of the registrant as of February 14, 2025. Each such subsidiary does business under its corporate name.

Exhibit 21 The following is a list of the subsidiaries of the registrant as of February 14, 2025.

February 3, 2025 EX-99.1

Fourth Quarter Ended December 31, Twelve Months Ended December 31, 2024 2023 2024 2023 Net Sales: Petroleum additives $ 626,138 $ 642,030 $ 2,636,242 $ 2,689,709 Specialty materials 27,092 0 141,243 0 All other 1,417 1,320 9,073 8,710 Total $ 654,647

EXHIBIT 99.1 NewMarket Corporation Reports Fourth Quarter and Full Year 2024 Results •Full Year Net Income of $462 Million and Earnings Per Share of $48.22 •Full Year Petroleum Additives Operating Profit of $592 Million •AMPAC Sales for 2024 Surpass Pre-Acquisition Expectations •Debt Reduction of $373 Million since AMPAC Acquisition Richmond, VA, February 3, 2025 – NewMarket Corporation (NYSE:NEU)

February 3, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 3, 2025 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization

December 12, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 12, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission F

December 12, 2024 EX-99.1

NEWMARKET CORPORATION AUTHORIZES NEW SHARE REPURCHASE PROGRAM

EXHIBIT 99.1 NEWMARKET CORPORATION AUTHORIZES NEW SHARE REPURCHASE PROGRAM Richmond, VA, December 12, 2024 - The Board of Directors of NewMarket Corporation (NYSE: NEU) (the “Company”) approved a new share repurchase program authorizing management to repurchase up to $500 million of the Company’s outstanding common stock through December 31, 2027, as market conditions warrant and covenants under t

December 12, 2024 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 1, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission F

November 27, 2024 SC 13D/A

NEU / NewMarket Corporation / GOTTWALD BRUCE C - SC 13D/A Activist Investment

SC 13D/A 1 d852001dsc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 8) NEWMARKET CORPORATION (Name of Issuer) COMMON STOCK (Title of Class of Securities) 651587 10 7 (CUSIP Number) Bruce C. Gottwald 330 South Fourth Street Richmond, Virginia 23219 Telephone No. 804-788-5000 (Name, Addre

November 27, 2024 SC 13D/A

NEU / NewMarket Corporation / Gottwald Thomas E - SC 13D/A Activist Investment

SC 13D/A 1 d864760dsc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1) NEWMARKET CORPORATION (Name of Issuer) COMMON STOCK (Title of Class of Securities) 651587 10 7 (CUSIP Number) Thomas E. Gottwald 330 South Fourth Street Richmond, Virginia 23219 Telephone No. 804-788-5000 (Name, Addr

October 24, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission Fi

October 24, 2024 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending September 30, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive offic

October 24, 2024 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, William J. Skrobacz, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2024 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such s

October 24, 2024 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending September 30, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. Skrobacz, chief financial offi

October 24, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 N

October 24, 2024 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

EXHIBIT 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, October 24, 2024 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.50 per share on the common stock of the Corporation. The dividend is payable January 2, 2025, to NewMarket shareholders of record at the close of business on December 16, 2024. NewMarket Corpora

October 24, 2024 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2024 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such st

October 23, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 23, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization

October 23, 2024 EX-99.1

Third Quarter Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Net Sales: Petroleum additives $ 663,014 $ 663,719 $ 2,010,104 $ 2,047,679 Specialty materials 59,094 0 114,151 0 All other 2,839 3,431 7,656 7,390 Total $ 724,947

EXHIBIT 99.1 NewMarket Corporation Reports Third Quarter and First Nine Months 2024 Results •Third Quarter Net Income of $132 Million and Earnings Per Share of $13.79 •Nine Months Petroleum Additives Operating Profit of $456 Million •First Nine Months AMPAC Results Consistent with Pre-Acquisition Expectations •Debt Reduction of $259 Million since AMPAC Acquisition Richmond, VA, October 23, 2024 –

October 3, 2024 EX-99.1

NEWMARKET ANNOUNCES THE RETIREMENT OF ITS VICE PRESIDENT AND CHIEF FINANCIAL OFFICER AND THE APPOINTMENT OF SUCCESSOR

Exhibit 99.1 NEWMARKET ANNOUNCES THE RETIREMENT OF ITS VICE PRESIDENT AND CHIEF FINANCIAL OFFICER AND THE APPOINTMENT OF SUCCESSOR Richmond, VA, October 1, 2024 – NewMarket Corporation (NYSE: NEU) (the “Company”) announced today that William J. Skrobacz is stepping down from his role as Vice President and Chief Financial Officer of the Company effective December 31, 2024, as he intends to retire f

October 3, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 1, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission Fil

August 8, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

August 8, 2024 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

Exhibit 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, August 8, 2024 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.50 per share on the common stock of the Corporation. The dividend is payable October 1, 2024, to NewMarket shareholders of record at the close of business on September 16, 2024. NewMarket Corporat

July 30, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 NEWMAR

July 30, 2024 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, William J. Skrobacz, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2024 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statem

July 30, 2024 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending June 30, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer of

July 30, 2024 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2024 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such stateme

July 30, 2024 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending June 30, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. Skrobacz, chief financial officer o

July 29, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2024 NEWMARKET CORPORATI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization) (

July 29, 2024 EX-99.1

Second Quarter Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 Net Sales: Petroleum additives $ 669,826 $ 683,969 $ 1,347,090 $ 1,383,960 Specialty materials 38,010 0 55,057 0 All other 2,392 1,161 4,817 3,959 Total $ 710,228 $ 685,130 $

EXHIBIT 99.1 NewMarket Corporation Reports Second Quarter and First Half 2024 Results •Second Quarter Net Income of $112 Million and Earnings Per Share of $11.63 •First Half Petroleum Additives Operating Profit of $299 Million •First Half AMPAC Results Consistent with Pre-Acquisition Expectations •Debt Reduction of $171 Million Since AMPAC Acquisition Richmond, VA, July 29, 2024 – NewMarket Corpor

June 10, 2024 SC 13G/A

NEU / NewMarket Corporation / BANK OF AMERICA CORP /DE/ Passive Investment

SC 13G/A 1 doc1.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 11)* NEWMARKET CORP (Name of Issuer) Common Stock (Title of Class of Securities) 651587107 (CUSIP Number) May 31, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to w

June 10, 2024 EX-99

LIMITED POWER OF ATTORNEY BANK OF AMERICA CORPORATION

EX-99 2 bacpoa.htm BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY BANK OF AMERICA CORPORATION, a Delaware corporation (the "Corporation" ), does hereby make, constitute, and appoint each of Marie Andre, Szabina Biro, Andres Ortiz Custodio, Kamil Dziedzic, Valerie Ezeagbo, Kelvin Kwo k, Frank Lui, James Todd, Ben Tsoi, Michelle Wong, and Monica Yako as an attorney-in-fact for the Corporation

May 29, 2024 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 FORM 11-K ý ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2023 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-32190 A. Full title of the plan and the add

April 25, 2024 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer o

April 25, 2024 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending March 31, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. Skrobacz, chief financial officer

April 25, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 25, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

April 25, 2024 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

Exhibit 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, April 25, 2024—The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.50 per share on the common stock of the Corporation. The dividend is payable July 1, 2024 to NewMarket shareholders of record at the close of business on June 14, 2024. NewMarket Corporation is a ho

April 25, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 NEWMA

April 25, 2024 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended March 31, 2024 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statem

April 25, 2024 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, William J. Skrobacz, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended March 31, 2024 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such state

April 24, 2024 EX-99.1

Three Months Ended March 31, 2024 2023 Net Sales: Petroleum additives $ 677,264 $ 699,991 Specialty materials 17,047 0 All other 2,425 2,798 Total $ 696,736 $ 702,789 Segment operating profit: Petroleum additives $ 150,909 $ 132,068 Specialty materia

EXHIBIT 99.1 NewMarket Corporation Reports First Quarter 2024 Results •Net Income of $107.7 Million and Earnings Per Share of $11.23 •Petroleum Additives Shipments Up 4.7% •Acquisition of American Pacific Corporation Completed in January Richmond, VA, April 24, 2024 – NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer, Thomas E. Gottwald, released the following earnings report o

April 24, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 24, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization)

March 11, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒        Filed by a party other than the Registrant ☐ Check

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒        Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

March 11, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒        Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Prox

February 28, 2024 EX-99.1

Page(s) Report of Independent Auditors 1-2 Consolidated Financial Statements Consolidated Balance Sheet 3 Consolidated Statement of Operations 4 Consolidated Statement of Comprehensive Income 5 Consolidated Statement of Changes in Members' Equity 6 C

EXHIBIT 99.1 AMPAC Intermediate Holdings, LLC Consolidated Financial Statements As of and for the year ended September 30, 2023 AMPAC Intermediate Holdings, LLC Index September 30, 2023 Page(s) Report of Independent Auditors 1-2 Consolidated Financial Statements Consolidated Balance Sheet 3 Consolidated Statement of Operations 4 Consolidated Statement of Comprehensive Income 5 Consolidated Stateme

February 28, 2024 8-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 16, 2024 NEWMARKET CORP

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 16, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organizati

February 28, 2024 EX-99.2

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

EXHIBIT 99.2 UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Acquisition On December 1, 2023, NewMarket Corporation (the Company or NewMarket) entered into a Securities Purchase Agreement (the Purchase Agreement) with Coyote Ultimate Holdings, LLC (Coyote) and AMPAC Intermediate Holdings, LLC (AMPAC), the ultimate parent company of American Pacific Corporation. On January 16, 2024, th

February 27, 2024 EX-FILING FEES

Filing Fee Table (filed herewith)

Exhibit 107 Calculation of Filing Fee Table S-3 (Form Type) NewMarket Corporation (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered & Carry Forward Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type C

February 27, 2024 S-3ASR

As Filed with the Securities and Exchange Commission on February 27, 2024

Table of Contents As Filed with the Securities and Exchange Commission on February 27, 2024 File No.

February 27, 2024 EX-25.1

Statement of Eligibility of U.S. Bank Trust Company, National Association, as trustee for the indenture relating to the debt securities (filed herewith).

Exhibit 25.1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE ☐ Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 91-1821036 I.R.S. E

February 22, 2024 EX-99.1

NEWMARKET CORPORATION INCREASES QUARTERLY DIVIDEND

Exhibit 99.1 NEWMARKET CORPORATION INCREASES QUARTERLY DIVIDEND Richmond, VA, February 22, 2024 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.50 per share on the common stock of the Corporation, an increase of $0.25, or approximately 11%, as compared to the last quarterly dividend of $2.25 per share. The dividend is payable April 1,

February 22, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 22, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission F

February 15, 2024 EX-32.B

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 10-K of NewMarket Corporation (the “Company”) for the period ending December 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. Skrobacz, chief financial officer

February 15, 2024 EX-97

NEWMARKET CORPORATION POLICY FOR THE RECOVERY OF INCENTIVE COMPENSATION Originally effective as of August 8, 2016 Amended and restated effective as of October 26, 2023

Exhibit 97 NEWMARKET CORPORATION POLICY FOR THE RECOVERY OF INCENTIVE COMPENSATION Originally effective as of August 8, 2016 Amended and restated effective as of October 26, 2023 In the event NewMarket Corporation (the “Company”) determines it must prepare an accounting restatement due to the material noncompliance of the Company with any financial reporting requirement under the securities laws,

February 15, 2024 EX-21

The following is a list of the subsidiaries of the registrant as of February 15, 2024. Each such subsidiary does business under its corporate name.

Exhibit 21 The following is a list of the subsidiaries of the registrant as of February 15, 2024.

February 15, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-32190 NEWMARKET

February 15, 2024 EX-31.B

Date: February 15, 2024 By: /s/ William J. Skrobacz William J. Skrobacz Vice President and Chief Financial Officer

Exhibit 31(b) CERTIFICATION I, William J. Skrobacz, certify that: 1.I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2023 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statemen

February 15, 2024 EX-10.9

Summary of Directors’ Compensation

Exhibit 10.9 Summary of Directors’ Compensation The Compensation Committee of NewMarket Corporation (the “Company”) approved directors' compensation, which is effective October 1, 2023. The Company pays the following quarterly fees for non-employee committee membership: Audit Committee Member $ 2,500 Audit Committee Chairman 5,000 Compensation Committee Chairman 3,750 Nominating and Corporate Gove

February 15, 2024 EX-32.A

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 10-K of NewMarket Corporation (the “Company”) for the period ending December 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer o

February 15, 2024 EX-31.A

Date: February 15, 2024 By: /s/ Thomas E. Gottwald Thomas E. Gottwald Chairman of the Board, President, and Chief Executive Officer

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2023 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statement

February 14, 2024 SC 13G/A

NEU / NewMarket Corporation / LONDON CO OF VIRGINIA Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 16)* Newmarket Corporation (Name of Issuer) Common Stock, No Par Value (Title of Class of Securities) 651587107 (CUSIP Number) Andrew Wetzel The London Compan

February 13, 2024 SC 13G/A

NEU / NewMarket Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: NewMarket Corp Title of Class of Securities: Common Stock CUSIP Number: 651587107 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rul

February 13, 2024 SC 13G/A

NEU / NewMarket Corporation / BANK OF AMERICA CORP /DE/ Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 10)* NEWMARKET CORP (Name of Issuer) Common Stock (Title of Class of Securities) 651587107 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sched

February 13, 2024 EX-99

BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY

EX-99 2 bacpoa.htm BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY BANK OF AMERICA CORPORATION, a Delaware corporation (the "Corporation"), does hereby make, constitute, and appoint each of Szabina Biro, Hannah Chae, Andres Ortiz Custodio, Kamil Dziedzic, Krishnan Harihanran, Kelvin Kwok, Frank Lui, James Todd, Michelle Wong, and Monica Yako as an attorney-in-fact for the Corporation acting

January 31, 2024 EX-99.1

Fourth Quarter Ended December 31, Twelve Months Ended December 31, 2023 2022 2023 2022 Net Sales: Petroleum additives $ 642,030 $ 680,292 $ 2,689,709 $ 2,754,310 All other 1,320 2,267 8,710 10,489 Total $ 643,350 $ 682,559 $ 2,698,419 $ 2,764,799 Seg

EXHIBIT 99.1 NewMarket Corporation Reports Fourth Quarter and Full Year 2023 Results •Full Year Net Income of $389 Million and Earnings Per Share of $40.44 •$134 Million Working Capital Improvement in 2023 •$361 Million Repaid on Revolving Credit Facility in 2023 •Acquired American Pacific Corporation (AMPAC) in January 2024 Richmond, VA, January 31, 2024 – NewMarket Corporation (NYSE:NEU) Chairma

January 31, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 31, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization

January 25, 2024 EX-10.2

Term Loan Credit Agreement, dated as of January 22, 2024, among NewMarket Corporation, Bank of America, N.A. as Administrative Agent, Wells Fargo Bank, National Association, as Syndication Agent, and the Lenders party thereto.

Exhibit 10.2 Deal CUSIP Number: 65158UAJ5 Term Loan CUSIP Number: 65158UAK2 Execution Version TERM LOAN CREDIT AGREEMENT dated as of January 22, 2024 among NEWMARKET CORPORATION The Lenders Party Hereto BANK OF AMERICA, N.A., as Administrative Agent WELLS FARGO BANK, NATIONAL ASSOCIATION, as Syndication Agent BOFA SECURITIES, INC. and WELLS FARGO SECURITIES, LLC, as Joint Bookrunners and Joint Lea

January 25, 2024 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 22, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission Fi

January 25, 2024 EX-10.1

Credit Agreement, dated as of January 22, 2024, among NewMarket Corporation, the Foreign Subsidiary Borrowers party thereto, Bank of America, N.A., as Administrative Agent, Wells Fargo Bank, National Association, as Syndication Agent, and the Lenders party thereto.

Exhibit 10.1 Execution Version Deal CUSIP Number: 65158UAG1 Revolver CUSIP Number: 65158UAH9 CREDIT AGREEMENT dated as of January 22, 2024 among NEWMARKET CORPORATION The Other Foreign Subsidiary Borrowers from Time to Time Party Hereto The Lenders Party Hereto BANK OF AMERICA, N.A., as Administrative Agent WELLS FARGO BANK, NATIONAL ASSOCIATION, as Syndication Agent DBS BANK, LTD., JPMORGAN CHASE

January 22, 2024 8-K

Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 16, 2024 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission Fi

December 4, 2023 EX-10.1

Securities Purchase Agreement by and among Coyote Ultimate Holdings, LLC, AMPAC Intermediate Holdings, LLC and NewMarket Corporation, dated December 1, 2023.**

Exhibit 10.1 SECURITIES PURCHASE AGREEMENT BY AND AMONG COYOTE ULTIMATE HOLDINGS, LLC (A DELAWARE LIMITED LIABILITY COMPANY), AMPAC INTERMEDIATE HOLDINGS, LLC (A DELAWARE LIMITED LIABILITY COMPANY) AND NEWMARKET CORPORATION (A VIRGINIA CORPORATION), DECEMBER 1, 2023 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 1.01 Definitions 1 1.02 Other Definitional Provisions 16 ARTICLE II PURCHASE AND SALE

December 4, 2023 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 1, 2023 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission Fi

December 4, 2023 EX-99.1

NEWMARKET CORPORATION ANNOUNCES THE ACQUISITION OF AMPAC INTERMEDIATE HOLDINGS, LLC

Exhibit 99.1 NEWMARKET CORPORATION ANNOUNCES THE ACQUISITION OF AMPAC INTERMEDIATE HOLDINGS, LLC Richmond, VA, December 4, 2023 - NewMarket Corporation (NYSE: NEU) today announced its entry into a definitive purchase agreement to acquire AMPAC Intermediate Holdings, LLC, the ultimate parent company of American Pacific Corporation (AMPAC), for approximately $700 million. Based in Cedar City, Utah,

October 26, 2023 EX-99.1

NEWMARKET ANNOUNCES THE ELECTION OF LILO SIMMONS UKROP AS DIRECTOR

EXHIBIT 99.1 NEWMARKET ANNOUNCES THE ELECTION OF LILO SIMMONS UKROP AS DIRECTOR Richmond, VA, October 26, 2023 - NewMarket Corporation (NYSE: NEU) announced today that Lilo Simmons Ukrop has been elected to the Board of Directors, effective October 26, 2023. Ms. Ukrop received a B.S. in Mechanical Engineering from Tulane University and a M.B.A. from the Darden Graduate School of Business Administr

October 26, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 N

October 26, 2023 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

Exhibit 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, October 26, 2023 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.25 per share on the common stock of the Corporation. The dividend is payable January 2, 2024, to NewMarket shareholders of record at the close of business on December 15, 2023. NewMarket Corpora

October 26, 2023 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending September 30, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. Skrobacz, chief financial offi

October 26, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 26, 2023 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission Fi

October 26, 2023 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 26, 2023 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission Fi

October 26, 2023 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, William J. Skrobacz, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2023 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such s

October 26, 2023 EX-99.1

Third Quarter Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Net Sales: Petroleum additives $ 663,719 $ 692,693 $ 2,047,679 $ 2,074,018 All other 3,431 3,356 7,390 8,222 Total $ 667,150 $ 696,049 $ 2,055,069 $ 2,082,240 Segme

EXHIBIT 99.1 NewMarket Corporation Reports Third Quarter and First Nine Months 2023 Results •Third Quarter Net Income of $111.2 Million and Earnings Per Share of $11.60 •Nine Months Petroleum Additives Operating Profit of $404.0 Million •Year-to-date $71.9 Million Working Capital Improvement Richmond, VA, October 25, 2023 – NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer, Tho

October 26, 2023 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2023 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such st

October 26, 2023 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending September 30, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive offic

October 26, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 25, 2023 NEWMARKET CORPOR

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 25, 2023 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization

August 3, 2023 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

EX-99.1 EXHIBIT 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, August 3, 2023 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.25 per share on the common stock of the Corporation, The dividend is payable October 2, 2023, to NewMarket shareholders of record at the close of business on September 15, 2023. NewMarket

August 3, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2023 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

July 27, 2023 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending June 30, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. Skrobacz, chief financial officer o

July 27, 2023 EX-10.1

Exhibit 10.1

Exhibit 10.1 NEWMARKET CORPORATION 2023 INCENTIVE COMPENSATION AND STOCK PLAN As Approved by Shareholders on April 27, 2023 1 NewMarket Corporation 2023 Incentive Compensation and Stock Plan Table of Contents ARTICLE I DEFINITIONS 5 1.01 Administrator 5 1.02 Affiliate and Associate 5 1.03 Agreement 5 1.04 Award 5 1.05 Beneficial Owner 5 1.06 Board 5 1.07 Cause 5 1.08 Change in Control 5 1.09 Code

July 27, 2023 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2023 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such stateme

July 27, 2023 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, William J. Skrobacz, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2023 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statem

July 27, 2023 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending June 30, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer of

July 27, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 NEWMAR

July 26, 2023 EX-99.1

Second Quarter Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Net Sales: Petroleum additives $ 683,969 $ 721,021 $ 1,383,960 $ 1,381,325 All other 1,161 2,618 3,959 4,866 Total $ 685,130 $ 723,639 $ 1,387,919 $ 1,386,191 Segment operati

EXHIBIT 99.1 NewMarket Corporation Reports Second Quarter and First Half 2023 Results •Second Quarter Net Income of $99.6 Million and Earnings Per Share of $10.36 •First Half Petroleum Additives Operating Profit of $264.2 Million •7% Increase in Dividend Declared During the Second Quarter Richmond, VA, July 26, 2023 – NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer, Thomas E.

July 26, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 26, 2023 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization) (

June 28, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 26, 2023 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

June 20, 2023 EX-FILING FEES

Filing Fee Table.*

EX-FILING FEES Exhibit 107 CALCULATION OF FILING FEE TABLE FORM S-8 (Form Type) NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit(2) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, with no par value Other 250,000 $404.

June 20, 2023 S-8

Powers of Attorney (included on Signature Page).*

S-8 As filed with the Securities and Exchange Commission on June 20, 2023. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 20-0812170 (State or other jurisdiction of incorporation or organization) (I.R.S

May 31, 2023 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 FORM 11-K ý ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2022 OR ¨ TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-32190 A. Full title of the plan and the add

April 27, 2023 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, William J. Skrobacz, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended March 31, 2023 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such state

April 27, 2023 EX-99.1

NEWMARKET CORPORATION INCREASES QUARTERLY DIVIDEND

EX-99.1 EXHIBIT 99.1 NEWMARKET CORPORATION INCREASES QUARTERLY DIVIDEND Richmond, VA, April 27, 2023 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.25 per share on the common stock of the Corporation, an increase of $0.15 as compared to the last quarterly dividend of $2.10 per share. The dividend is payable July 3, 2023, to NewMarket

April 27, 2023 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending March 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. Skrobacz, chief financial officer

April 27, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2023 NEWMARKET CORPORAT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2023 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

April 27, 2023 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending March 31, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer o

April 27, 2023 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended March 31, 2023 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statem

April 27, 2023 10-Q

Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 NEWMA

April 26, 2023 EX-99.1

Three Months Ended March 31, 2023 2022 Revenue: Petroleum additives $ 699,991 $ 660,304 All other 2,798 2,248 Total $ 702,789 $ 662,552 Segment operating profit: Petroleum additives $ 132,068 $ 86,922 All other (975) 98 Segment operating profit 131,0

EXHIBIT 99.1 NewMarket Corporation Reports First Quarter 2023 Results •Net Income of $97.6 Million and Earnings Per Share of $10.09 •Petroleum Additives Operating Profit of $132.1 Million •Continued Focus on Cost Control and Margin Recovery Richmond, VA, April 26, 2023 – NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer, Thomas E. Gottwald, released the following earnings repor

April 26, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 26, 2023 NEWMARKET CORPORAT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 26, 2023 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization)

March 10, 2023 DEF 14A

NewMarket Corporation 2023 Incentive Compensation and Stock Plan (incorporated by reference to Annex B of the definitive proxy statement filed by NewMarket Corporation on March 10, 2023)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commis sion Only (as permitted by Rule 14a-6(e)(2)) ☒ Definitive Proxy Stat

March 10, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defi

February 23, 2023 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

EX-99.1 EXHIBIT 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, February 23, 2023 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.10 per share on the common stock of the Corporation. The dividend is payable April 3, 2023, to NewMarket shareholders of record at the close of business on March 15, 2023. NewMarket Cor

February 23, 2023 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission F

February 15, 2023 EX-32.A

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 10-K of NewMarket Corporation (the “Company”) for the period ending December 31, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer o

February 15, 2023 EX-31.B

Date: February 15, 2023 By: /s/ William J. Skrobacz William J. Skrobacz Vice President and Chief Financial Officer

Exhibit 31(b) CERTIFICATION I, William J. Skrobacz, certify that: 1.I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2022 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statemen

February 15, 2023 EX-32.B

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 10-K of NewMarket Corporation (the “Company”) for the period ending December 31, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. Skrobacz, chief financial officer

February 15, 2023 EX-31.A

Date: February 15, 2023 By: /s/ Thomas E. Gottwald Thomas E. Gottwald Chairman of the Board, President, and Chief Executive Officer

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2022 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statement

February 15, 2023 EX-21

The following is a list of the subsidiaries of the registrant as of February 15, 2023. Each such subsidiary does business under its corporate name.

Exhibit 21 The following is a list of the subsidiaries of the registrant as of February 15, 2023.

February 15, 2023 EX-10.17

AMENDMENT NO. 2 Dated as of January 11, 2023 CREDIT AGREEMENT Dated as of March 5, 2020

Exhibit 10.17 AMENDMENT NO. 2 Dated as of January 11, 2023 to CREDIT AGREEMENT Dated as of March 5, 2020 THIS AMENDMENT NO. 2 (this “Amendment”) is made as of January 11, 2023 by and among NEWMARKET CORPORATION, a Virginia corporation (the “Company”), Afton Chemical UK Holdings Limited (“Afton UK”), Afton Chemical Switzerland GmbH (“Afton Switzerland” and together with the Company and Afton UK, th

February 15, 2023 EX-10.16

AMENDMENT NO. 1 Dated as of November 5, 2021 CREDIT AGREEMENT Dated as of March 5, 2020

Exhibit 10.16 AMENDMENT NO. 1 Dated as of November 5, 2021 to CREDIT AGREEMENT Dated as of March 5, 2020 THIS AMENDMENT NO. 1 (this “Amendment”) is made as of November 5, 2021 by and among NEWMARKET CORPORATION, a Virginia corporation (the “Company”), Afton Chemical UK Holdings Limited (“Afton UK”), Afton Chemical Switzerland GmbH (“Afton Switzerland” and together with the Company and Afton UK, th

February 15, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-32190 NEWMARKET

February 14, 2023 SC 13G/A

NEU / NewMarket Corporation / BANK OF AMERICA CORP /DE/ Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 09)* NEWMARKET CORPORATION (Name of Issuer) Common Stock (Title of Class of Securities) 651587107 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which thi

February 14, 2023 EX-99

BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY BANK OF AMERICA CORPORATION

BANK OF AMERICA CORPORATION LIMITED POWER OF ATTORNEY BANK OF AMERICA CORPORATION, a Delaware corporation (the "Corporation"), does hereby make, constitute, and appoint each of Kelvin Kwok, Tolu Tade, Andres Ortiz Custodio, Frank Lui, James Todd, Zainab Tarteel, Hannah Chae and Monica Yako as an attorney-in-fact for the Corporation acting for the Corporation and in the Corporation's name, place and stead, for the Corporation's use and benefit, to bind the Corporation by their execution of those agreements, forms and documents related specifically to Section 13 and Section 16 of the Securities Exchange Act of 1934, and other large shareholder and short position regulatory reporting requirements in other jurisdictions.

February 14, 2023 SC 13G/A

NEU / NewMarket Corporation / LONDON CO OF VIRGINIA Passive Investment

SC 13G/A 1 fp0082026-3sc13ga.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 15)* Newmarket Corporation (Name of Issuer) Common Stock, No Par Value (Title of Class of Securities) 651587107 (CUSIP Number

February 13, 2023 SC 13G/A

NEU / NewMarket Corporation / Floyd D. Gottwald, Jr. Living Trust - SC 13G/A Passive Investment

SC 13G/A 1 d265527dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* NEWMARKET CORPORATION (Name of Issuer) COMMON STOCK (Title of Class of Securities) 651587107 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

February 9, 2023 SC 13G/A

NEU / NewMarket Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: NewMarket Corp. Title of Class of Securities: Common Stock CUSIP Number: 651587107 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rul

January 31, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 31, 2023 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization

January 31, 2023 EX-99.1

Fourth Quarter Ended December 31, Twelve Months Ended December 31, 2022 2021 2022 2021 Revenue: Petroleum additives $ 680,292 $ 573,387 $ 2,754,310 $ 2,343,942 All other 2,267 3,180 10,489 12,168 Total $ 682,559 $ 576,567 $ 2,764,799 $ 2,356,110 Segm

EXHIBIT 99.1 NewMarket Corporation Reports Fourth Quarter and Full Year 2022 Results •Full Year Net Income of $279.5 Million and Earnings Per Share of $27.77 •Petroleum Additives Full Year Operating Profit of $378.2 Million •Continued Focus on Margin Recovery and Cost Control Richmond, VA, January 31, 2023 – NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer, Thomas E. Gottwald,

December 16, 2022 8-K/A

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 27, 2022 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission

October 31, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 27, 2022 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission Fi

October 31, 2022 EX-99.1

NEWMARKET ANNOUNCES THE RETIREMENT OF THE PRESIDENT OF AFTON CHEMICAL CORPORATION AND THE APPOINTMENT OF NEW PRESIDENT

Exhibit 99.1 NEWMARKET ANNOUNCES THE RETIREMENT OF THE PRESIDENT OF AFTON CHEMICAL CORPORATION AND THE APPOINTMENT OF NEW PRESIDENT Richmond, VA, October 31, 2022 ? NewMarket Corporation (NYSE: NEU) (the ?Company?) announced today that Regina Anne Harm, President of Afton Chemical Corporation (?Afton?), is stepping down from her role as President of Afton effective December 31, 2022, as she intend

October 27, 2022 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

EXHIBIT 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, October 27, 2022 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.10 per share on the common stock of the Corporation. The dividend is payable January 3, 2023, to NewMarket shareholders of record at the close of business on December 15, 2022. NewMarket Corpora

October 27, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 27, 2022 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission Fi

October 25, 2022 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2022 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such st

October 25, 2022 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending September 30, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Brian D. Paliotti, chief financial office

October 25, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 N

October 25, 2022 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, Brian D. Paliotti, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2022 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

October 25, 2022 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending September 30, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive offic

October 24, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2022 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization

October 24, 2022 EX-99.1

Third Quarter Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Revenue: Petroleum additives $ 692,693 $ 619,070 $ 2,074,018 $ 1,770,555 All other 3,356 3,137 8,222 8,988 Total $ 696,049 $ 622,207 $ 2,082,240 $ 1,779,543 Segment

EXHIBIT 99.1 NewMarket Corporation Reports Third Quarter and First Nine Months 2022 Results ?Third Quarter Net Income of $63.2 Million and Earnings Per Share of $6.32 ?Petroleum Additives Nine Months Operating Profit of $261.1 Million, Up 8.6% versus 2021 ?499,275 Shares Repurchased during First Nine Months of 2022 Richmond, VA, October 24, 2022 ? NewMarket Corporation (NYSE:NEU) Chairman and Chie

August 4, 2022 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

EXHIBIT 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, August 4, 2022?The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.10 per share on the common stock of the Corporation. The dividend is payable October 3, 2022 to NewMarket shareholders of record at the close of business on September 15, 2022. NewMarket Corporation

August 4, 2022 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2022 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

August 3, 2022 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, Brian D. Paliotti, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2022 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statemen

August 3, 2022 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2022 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such stateme

August 3, 2022 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending June 30, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Brian D. Paliotti, chief financial officer of

August 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 NEWMAR

August 3, 2022 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending June 30, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer of

August 2, 2022 EX-99.1

Second Quarter Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Revenue: Petroleum additives $ 721,021 $ 586,587 $ 1,381,325 $ 1,151,485 All other 2,618 4,134 4,866 5,851 Total $ 723,639 $ 590,721 $ 1,386,191 $ 1,157,336 Segment operating

EXHIBIT 99.1 NewMarket Corporation Reports Second Quarter and First Half 2022 Results •Second Quarter Net Income of $66.5 Million and Earnings Per Share of $6.54 •Petroleum Additives Record First Half Sales of $1.4 Billion, Up 20% versus First Half of 2021 •Petroleum Additives First Half Operating Profit of $178.1 Million, Up 5.8% versus First Half of 2021 •Focus Remains on Margin Recovery and Cos

August 2, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 2, 2022 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization)

June 2, 2022 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 FORM 11-K ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-32190 A. Full title of the plan and the add

May 23, 2022 SC 13G

NEU / NewMarket Corporation / Floyd D. Gottwald, Jr. Living Trust - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 NEWMARKET CORPORATION (Name of Issuer) COMMON STOCK (Title of Class of Securities) 651587107 (CUSIP Number) May 13, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ? Rule

May 23, 2022 EX-99.1

We, the undersigned, hereby express our agreement that the attached statement on Schedule 13G is filed on behalf of each of the undersigned.

Exhibit 99.1 We, the undersigned, hereby express our agreement that the attached statement on Schedule 13G is filed on behalf of each of the undersigned. Dated: May 23, 2022 /s/ John D. Gottwald John D. Gottwald /s/ William M. Gottwald William M. Gottwald /s/ James T. Gottwald James T. Gottwald Floyd D. Gottwald, Jr. Living Trust /s/ James T. Gottwald By: James T. Gottwald, as trustee

April 28, 2022 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending March 31, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Brian D. Paliotti, chief financial officer of

April 28, 2022 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended March 31, 2022 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statem

April 28, 2022 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

EXHIBIT 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, April 28, 2022 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.10 per share on the common stock of the Corporation. The dividend is payable July 1, 2022 to NewMarket shareholders of record at the close of business on June 15, 2022. NewMarket Corporation, thro

April 28, 2022 8-K

Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 28, 2022 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

April 28, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 NEWMA

April 28, 2022 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, Brian D. Paliotti, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended March 31, 2022 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such stateme

April 28, 2022 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending March 31, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer o

April 27, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 27, 2022 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization)

April 27, 2022 EX-99.1

Three Months Ended March 31, 2022 2021 Revenue: Petroleum additives $ 660,304 $ 564,898 All other 2,248 1,717 Total $ 662,552 $ 566,615 Segment operating profit: Petroleum additives $ 86,922 $ 94,071 All other 98 (664) Segment operating profit 87,020

EXHIBIT 99.1 NewMarket Corporation Reports First Quarter 2022 Results ?Net Income of $59.3 Million and Earnings Per Share of $5.75 ?Petroleum Additives Operating Profit of $86.9 Million ?Focus Remains on Margin Recovery and Cost Control Richmond, VA, April 27, 2022 ? NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer, Thomas E. Gottwald, released the following earnings report of

March 11, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

March 11, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defi

February 24, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 24, 2022 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission F

February 24, 2022 EX-99.2

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

Exhibit 99.2 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, February 24, 2022 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.10 per share on the common stock of the Corporation. The dividend is payable April 1, 2022, to NewMarket shareholders of record at the close of business on March 15, 2022. NewMarket Corporation

February 24, 2022 EX-99.1

NEWMARKET ANNOUNCES THE ELECTION OF TING XU AS DIRECTOR

Exhibit 99.1 NEWMARKET ANNOUNCES THE ELECTION OF TING XU AS DIRECTOR Richmond, VA, February 24, 2022 - NewMarket Corporation (NYSE: NEU) announced today that Ting Xu has been elected to the Board of Directors, effective February 24, 2022. Ms. Xu is the Founder and Chairwoman of Evergreen Enterprises (manufacturer and wholesaler of home and garden d?cor items), Chairwoman and Majority Owner of Plow

February 15, 2022 EX-31.B

Date: February 15, 2022 By: /s/ Brian D. Paliotti Brian D. Paliotti Vice President and Chief Financial Officer

Exhibit 31(b) CERTIFICATION I, Brian D. Paliotti, certify that: 1.I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2021 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements

February 15, 2022 EX-31.A

Date: February 15, 2022 By: /s/ Thomas E. Gottwald Thomas E. Gottwald Chairman of the Board, President, and Chief Executive Officer

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Annual Report on Form 10-K for the year ended December 31, 2021 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statement

February 15, 2022 EX-21

The following is a list of the subsidiaries of the registrant as of February 15, 2022. Each such subsidiary does business under its corporate name.

Exhibit 21 The following is a list of the subsidiaries of the registrant as of February 15, 2022.

February 15, 2022 EX-10.12

Base Salaries of Named Executive Officers Name Base Salary Thomas E. Gottwald Chairman of the Board, President, and Chief Executive Officer $ 1,146,700 Regina A. Harm President of Afton Chemical Company $ 585,300 Bruce R. Hazelgrove, III Executive Vi

Exhibit 10.12 Base Salaries of Named Executive Officers Name Base Salary Thomas E. Gottwald Chairman of the Board, President, and Chief Executive Officer $ 1,146,700 Regina A. Harm President of Afton Chemical Company $ 585,300 Bruce R. Hazelgrove, III Executive Vice President and Chief Administrative Officer $ 519,800 Brian D. Paliotti Chief Financial Officer and Vice President $ 500,000 Bryce D.

February 15, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-32190 NEWMARKET

February 15, 2022 EX-32.B

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 10-K of NewMarket Corporation (the ?Company?) for the period ending December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the ?Report?), I, Brian D. Paliotti, chief financial officer of

February 15, 2022 EX-32.A

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Annual Report on Form 10-K of NewMarket Corporation (the ?Company?) for the period ending December 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the ?Report?), I, Thomas E. Gottwald, chief executive officer o

February 14, 2022 SC 13G/A

NEU / NewMarket Corporation / LONDON CO OF VIRGINIA Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(b) (AMENDMENT NO. 14)* Newmarket Corporation (Name of Issuer) Common Stock, No Par Value (Title of Class of Securities) 651587107 (CUSIP Number) Andrew Wetzel The London Compan

February 14, 2022 SC 13G/A

NEU / NewMarket Corporation / GOTTWALD FLOYD D JR - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* NEWMARKET CORPORATION (Name of Issuer) COMMON STOCK (Title of Class of Securities) 651587107 (CUSIP Number) DECEMBER 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this S

February 10, 2022 SC 13G/A

NEU / NewMarket Corporation / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv01517-newmarketcorp.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: NewMarket Corp. Title of Class of Securities: Common Stock CUSIP Number: 651587107 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the

February 2, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 2, 2022 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization

February 2, 2022 EX-99.1

Fourth Quarter Ended December 31, Twelve Months Ended December 31, 2021 2020 2021 2020 Revenue: Petroleum additives $ 573,387 $ 525,212 $ 2,343,942 $ 2,001,567 All other 3,180 2,569 12,168 9,364 Total $ 576,567 $ 527,781 $ 2,356,110 $ 2,010,931 Segme

EXHIBIT 99.1 NewMarket Corporation Reports Fourth Quarter and Full Year 2021 Results ?Full Year Net Income of $190.9 Million and Earnings Per Share of $17.71 ?Petroleum Additives Full Year Shipments Strong, Up 11.7% ?566,671 Shares Repurchased in 2021 Richmond, VA, February 2, 2022 ? NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer, Thomas E. Gottwald, released the following e

January 31, 2022 SC 13G/A

NEU / NewMarket Corporation / BANK OF AMERICA CORP /DE/ Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 08)* NEWMARKET CORP (Name of Issuer) Common Stock (Title of Class of Securities) 651587107 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sched

October 29, 2021 SC 13D/A

NEU / NewMarket Corporation / GOTTWALD BRUCE C - SC 13D/A Activist Investment

SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 7) NEWMARKET CORPORATION (Name of Issuer) COMMON STOCK (Title of Class of Securities) 651587 10 7 (CUSIP Number) Bruce C. Gottwald 330 South Fourth Street Richmond, Virginia 23219 Telephone No. 804-788-5000 (Name, Address and Telephone Number of Per

October 28, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2021 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission Fi

October 28, 2021 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND AND AUTHORIZES NEW SHARE REPURCHASE PROGRAM

EXHIBIT 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND AND AUTHORIZES NEW SHARE REPURCHASE PROGRAM Richmond, VA, October 28, 2021 - The Board of Directors of NewMarket Corporation (NYSE:NEU) declared a quarterly dividend in the amount of $2.10 per share on the common stock of the Corporation. The dividend is payable January 3, 2022 to NewMarket shareholders of record at the close of busine

October 26, 2021 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the ?Company?) for the period ending September 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the ?Report?), I, Thomas E. Gottwald, chief executive offic

October 26, 2021 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, Brian D. Paliotti, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2021 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such sta

October 26, 2021 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending September 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Brian D. Paliotti, chief financial office

October 26, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 N

October 26, 2021 EX-10.1

Exhibit 10.1

Exhibit 10.1 Summary of Directors? Compensation The Compensation Committee of NewMarket Corporation (the ?Company?) approved directors' compensation, which is effective October 1, 2021. The Company pays the following quarterly fees for non-employee committee membership: Audit Committee Member $ 1,250 Audit Committee Chairman 5,000 Compensation Committee Chairman 3,750 Nominating and Corporate Gove

October 26, 2021 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended September 30, 2021 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such st

October 25, 2021 EX-99.1

Third Quarter Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Revenue: Petroleum additives $ 619,070 $ 510,280 $ 1,770,555 $ 1,476,355 All other 3,137 2,589 8,988 6,795 Total $ 622,207 $ 512,869 $ 1,779,543 $ 1,483,150 Segment

EXHIBIT 99.1 NewMarket Corporation Reports Third Quarter and First Nine Months 2021 Results ?Petroleum Additives Third Quarter Shipments Strong, Up 11.9% ?Rising Costs Continue to Pressure Margins ?10.5% Increase in Dividend Declared During the Third Quarter ?292,392 Shares Repurchased in the Third Quarter Richmond, VA, October 25, 2021 ? NewMarket Corporation (NYSE:NEU) Chairman and Chief Executi

October 25, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 25, 2021 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization

August 5, 2021 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

EXHIBIT 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, August 5, 2021 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.10 per share on the common stock of the Corporation. The dividend is payable October 01, 2021 to NewMarket shareholders of record at the close of business on September 15, 2021. NewMarket Corporat

August 5, 2021 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

EXHIBIT 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, August 5, 2021 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $2.10 per share on the common stock of the Corporation. The dividend is payable October 01, 2021 to NewMarket shareholders of record at the close of business on September 15, 2021. NewMarket Corporat

August 5, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2021 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

August 5, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2021 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

July 29, 2021 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending June 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer of

July 29, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 NEWMAR

July 29, 2021 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, Brian D. Paliotti, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2021 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statemen

July 29, 2021 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended June 30, 2021 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such stateme

July 29, 2021 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the ?Company?) for the period ending June 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the ?Report?), I, Brian D. Paliotti, chief financial officer of

July 28, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 28, 2021 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization) (

July 28, 2021 EX-99.1

Second Quarter Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020 Revenue: Petroleum additives $ 586,587 $ 408,703 $ 1,151,485 $ 966,075 All other 4,134 2,161 5,851 4,206 Total $ 590,721 $ 410,864 $ 1,157,336 $ 970,281 Segment operating pro

EXHIBIT 99.1 NewMarket Corporation Reports Second Quarter and First Half 2021 Results ?Petroleum Additives Second Quarter Shipments Strong, Margins Compressed ?First Half Net Income of $121.7 Million and Earnings Per Share of $11.13 ?Petroleum Additives First Half Operating Profit of $168.3 Million Richmond, VA, July 28, 2021 ? NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer,

June 2, 2021 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 FORM 11-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D. C. 20549 FORM 11-K ? ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended December 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-32190 A. Full title of the plan and the add

April 23, 2021 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 22, 2021 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

April 22, 2021 EX-31.B

Exhibit 31(b)

Exhibit 31(b) CERTIFICATION I, Brian D. Paliotti, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended March 31, 2021 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such stateme

April 22, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 22, 2021 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

April 22, 2021 EX-32.A

Exhibit 32(a)

Exhibit 32(a) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending March 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Thomas E. Gottwald, chief executive officer o

April 22, 2021 EX-99.1

NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND

EXHIBIT 99.1 NEWMARKET CORPORATION DECLARES QUARTERLY DIVIDEND Richmond, VA, April 22, 2021 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $1.90 per share on the common stock of the Corporation. The dividend is payable July 01, 2021 to NewMarket shareholders of record at the close of business on June 15, 2021. NewMarket Corporation, thr

April 22, 2021 EX-32.B

Exhibit 32(b)

Exhibit 32(b) CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 In connection with the Quarterly Report on Form 10-Q of NewMarket Corporation (the “Company”) for the period ending March 31, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Brian D. Paliotti, chief financial officer of

April 22, 2021 EX-31.A

Exhibit 31(a)

Exhibit 31(a) CERTIFICATION I, Thomas E. Gottwald, certify that: 1.I have reviewed this Quarterly Report on Form 10-Q for the quarter ended March 31, 2021 of NewMarket Corporation; 2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statem

April 22, 2021 10-Q

Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-32190 NEWMA

April 21, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 21, 2021 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation or organization)

April 21, 2021 EX-99.1

Three Months Ended March 31, 2021 2020 Revenue: Petroleum additives $ 564,898 $ 557,372 All other 1,717 2,045 Total $ 566,615 $ 559,417 Segment operating profit: Petroleum additives $ 94,071 $ 113,671 All other (664) 335 Segment operating profit 93,4

EXHIBIT 99.1 NewMarket Corporation Reports First Quarter 2021 Results ?Net Income of $69.7 Million and Earnings Per Share of $6.38 ?Petroleum Additives Operating Profit of $94.1 Million ?Focus Remains on Investing in the Long-Term Success of the Company Richmond, VA, April 21, 2021 ? NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer, Thomas E. Gottwald, released the following e

March 18, 2021 EX-4.1

Exhibit 4.1

Exhibit 4.1 INDENTURE DATED AS OF MARCH 18, 2021 BETWEEN NEWMARKET CORPORATION as Issuer, AND WELLS FARGO BANK, NATIONAL ASSOCIATION as Trustee Providing for the Issuance of Debt Securities in Series Reconciliation and tie between Trust Indenture Act of 1939 and the Indenture Trust Indenture Act Section Indenture Section 310(a)(1) 6.09 (a)(2) 6.09 (a)(3) Not Applicable (a)(4) Not Applicable (a)(5)

March 18, 2021 EX-1.1

Underwriting Agreement dated March 4, 2021 by and among NewMarket Corporation and BofA Securities, Inc. and J.P. Morgan Securities LLC, as representatives of the several underwriters named in Schedule A thereto.*

Exhibit 1.1 Execution Version NEWMARKET CORPORATION (A Virginia corporation) $400,000,000 2.700% Senior Notes due 2031 UNDERWRITING AGREEMENT Dated: March 4, 2021 NEWMARKET CORPORATION (A Virginia corporation) $400,000,000 2.700% Senior Notes due 2031 UNDERWRITING AGREEMENT March 4, 2021 BofA Securities, Inc. J.P. Morgan Securities LLC as Representatives of the several Underwriters c/o BofA Securi

March 18, 2021 EX-4.2

Exhibit 4.2

Exhibit 4.2 NEWMARKET CORPORATION, as Issuer and WELLS FARGO BANK, NATIONAL ASSOCIATION, as Trustee FIRST SUPPLEMENTAL INDENTURE Dated as of March 18, 2021 This FIRST SUPPLEMENTAL INDENTURE, dated as of March 18, 2021 (this ?First Supplemental Indenture?), is made and entered into by and between NewMarket Corporation, a Virginia corporation (the ?Company?), and Wells Fargo Bank, National Associati

March 18, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 18, 2021 NEWMARKET CORPORATION (Exact name of registrant as specified in its charter) Virginia 1-32190 20-0812170 (State or other jurisdiction of incorporation) (Commission File

March 11, 2021 DEF 14A

- DEF 14A

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defi

March 11, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive Proxy State

March 5, 2021 424B5

CALCULATION OF REGISTRATION FEE Title of each Class of Securities to be Registered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) Debt Securities $400,000,000 $43,640

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-253774 CALCULATION OF REGISTRATION FEE Title of each Class of Securities to be Registered Maximum Aggregate Offering Price Amount of Registration Fee(1)(2) Debt Securities $400,000,000 $43,640 (1) Calculated in accordance with Rule 457(r) of the Securities Act of 1933, as amended. (2) This ?Calculation of Registration Fee? tab

March 4, 2021 FWP

NEWMARKET CORPORATION FINAL TERM SHEET March 4, 2021 $400,000,000 2.700% Senior Notes due 2031 Issuer: NewMarket Corporation Ratings:* Baa2 (stable) / BBB+ (stable) / BBB (stable) Principal Amount: $400,000,000 Maturity: March 18, 2031 Coupon (Intere

Filed pursuant to Rule 433 Relating to Preliminary Prospectus Supplement dated March 4, 2021 to Prospectus dated March 2, 2021 Registration No.

March 4, 2021 424B5

Subject to Completion Preliminary Prospectus Supplement dated March 4, 2021

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-253774 The information in this prospectus supplement is not complete and may be changed. This prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any state where the offer or sale is not permitted. Subject to Completion

March 2, 2021 S-3ASR

- S-3ASR

As Filed with the Securities and Exchange Commission on March 2, 2021 File No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-3 REGISTRATION STATEMENT Under The Securities Act of 1933 NEWMARKET CORPORATION (Exact name of Registrant as specified in its charter) Virginia 20-0812170 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Id

March 2, 2021 EX-4.1

Form of Indenture by and between NewMarket Corporation and Wells Fargo Bank, National Association, as trustee (filed herewith).

Exhibit 4.1 INDENTURE DATED AS OF [ ] BETWEEN NEWMARKET CORPORATION as Issuer, AND WELLS FARGO BANK, NATIONAL ASSOCIATION as Trustee Providing for the Issuance of Debt Securities in Series Reconciliation and tie between Trust Indenture Act of 1939 and the Indenture Trust Indenture Act Section Indenture Section 310(a)(1) 6.09 (a)(2) 6.09 (a)(3) Not Applicable (a)(4) Not Applicable (a)(5) 6.09 (b) 6

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