<SEC-DOCUMENT>0001193125-20-069221-index.html : 20200311
<SEC-HEADER>0001193125-20-069221.hdr.sgml : 20200311
<ACCEPTANCE-DATETIME>20200310181604
ACCESSION NUMBER:		0001193125-20-069221
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20200423
FILED AS OF DATE:		20200311
DATE AS OF CHANGE:		20200310
EFFECTIVENESS DATE:		20200311

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NEWMARKET CORP
		CENTRAL INDEX KEY:			0001282637
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			VA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32190
		FILM NUMBER:		20703304

	BUSINESS ADDRESS:	
		STREET 1:		330 S FOURTH ST
		STREET 2:		PO BOX 2189
		CITY:			RICHMOND
		STATE:			VA
		ZIP:			23218-2189
		BUSINESS PHONE:		804-788-5000

	MAIL ADDRESS:	
		STREET 1:		330 S FOURTH ST
		STREET 2:		PO BOX 2189
		CITY:			RICHMOND
		STATE:			VA
		ZIP:			23218-2189
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>d852614ddef14a.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: d852614ddef14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g852614dsp001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g852614dsp001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g852614dsp002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g852614dsp002.jpg

</DOCUMENT>
</SEC-DOCUMENT>