Exhibit 12.1

Domtar Corporation

Computation of ratio of earnings to fixed charges

(In millions of dollars, unless otherwise noted)

	Year ended December 31, 2010		Year ended December 31, 2011		Year ended December 31, 2012		Year ended December 31, 2013		Year ended December 31, 2014
		$		$		$		$		$
Available earnings:
Earnings before income taxes and equity earnings		448		505		236		72		261
Add fixed charges:
Interest expense incurred		144		76		75		83		99
Amortization of debt expense and discount		11		7		8		4		4
Interest portion of rental expense (1)		11		11		11		11		11
Total earnings as defined		614		599		330		170		375
Fixed charges:
Interest expense incurred		144		76		75		83		99
Amortization of debt expense and discount		11		7		8		4		4
Interest portion of rental expense (1)		11		11		11		11		11
Total fixed charges		166		94		94		98		114
Ratio of earnings to fixed charges		3.7		6.4		3.5		1.7		3.3

(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).