Exhibit 12

NewMarket Corporation and Subsidiaries

Computation of Ratio of Earnings to Fixed Charges

(Dollars in thousands, except ratios)

	Years Ended December 31
	2010		2009		2008		2007		2006
Earnings:
Pretax income from continuing operations before discontinued operations	$	259,996	$	239,376	$	105,326	$	100,424	$	79,962
Interest expense (net)		17,261		11,716		12,046		11,557		15,403
Portion of rent expense representative of interest factor		7,170		6,379		6,713		6,097		5,787
Amortization of capitalized interest		256		235		233		251		346
Adjusted pretax income from continuing operations	$	284,683	$	257,706	$	124,318	$	118,329	$	101,498
Fixed Charges:
Interest expense (before deducting capitalized interest)	$	17,597	$	12,497	$	12,931	$	12,124	$	15,624
Portion of rent expense representative of interest factor		7,170		6,379		6,713		6,097		5,787
Total fixed charges	$	24,767	$	18,876	$	19,644	$	18,221	$	21,411
Ratio of earnings to fixed charges		11.5		13.7		6.3		6.5		4.7