Domtar Increases Maximum Payment for Share Tender Offer

MONTREAL—June 4, 2010—Domtar Corp. (NYSE/TSX: UFS) today announced that it had raised the maximum aggregate consideration (excluding accrued and unpaid interest) from $350 million to $450 million with respect to its previously announced tender offer for its outstanding 5.375% Notes due 2013, 7-1/8% Notes due 2015, 7.875% Notes due 2011, and 10.75% Notes due 2017.