Exhibit 12

NewMarket Corporation and Subsidiaries

Computation of Ratio of Earnings to Fixed Charges

(Dollars in thousands, except ratios)

	Years Ended December 31,
	2006		2005		2004		2003		2002
Earnings:
Pretax income from continuing operations before discontinued operations and cumulative effect of accounting changes	$	88,143	$	56,952	$	44,630	$	29,342	$	13,269
Interest expense (net)		15,403		16,849		18,254		21,128		25,574
Portion of rent expense representative of interest factor		5,787		5,636		6,438		5,650		4,738
Amortization of capitalized interest		346		1,144		1,515		1,498		1,547
Adjusted pretax income from continuing operations	$	109,679	$	80,581	$	70,837	$	57,618	$	45,128
Fixed Charges:
Interest expense (before deducting capitalized interest)	$	15,624	$	16,970	$	18,441	$	21,236	$	25,687
Portion of rent expense representative of interest factor		5,787		5,636		6,438		5,650		4,738
Total fixed charges	$	21,411	$	22,606	$	24,879	$	26,886	$	30,425
Ratio of earnings to fixed charges		5.1		3.6		2.8		2.1		1.5