8-K (JOINDER AGREEMENT)

Company

NEWMARKET CORP

Filed

December 9, 2009

Period of Report

December 7, 2009

Accession Number

0001181431-09-055754

An 8-K is a current report used to announce material events that shareholders should know about — such as earnings releases, mergers, executive changes, or bankruptcy. Learn more about 8-K filings →