Exhibit 12.1

Domtar Corporation

Computation of ratio of earnings to fixed charges

(In millions of dollars, unless otherwise noted)

	Year ended December  31, 2009		Year ended December  31, 2010		Year ended December 31, 2011		Year ended December  31, 2012		Year ended December 31, 2013
		$		$		$		$		$
Available earnings:
Earnings before income taxes and equity earnings		490		448		505		236		72
Add fixed charges:
Interest expense incurred		115		144		76		75		83
Amortization of debt expense and discount		10		11		7		8		4
Interest portion of rental expense (1)		12		11		11		11		11
Total earnings as defined		627		614		599		330		170
Fixed charges:
Interest expense incurred		115		144		76		75		83
Amortization of debt expense and discount		10		11		7		8		4
Interest portion of rental expense (1)		12		11		11		11		11
Total fixed charges		137		166		94		94		98
Ratio of earnings to fixed charges		4.6		3.7		6.4		3.5		1.7

(1) Interest portion of rental expense is calculated based on the proportion deemed representation of the interest component (i.e. 1/3 of rental expense).