X0306 4 2020-01-15 0 0001381531 Domtar CORP UFS 0001184023 STROBEL PAMELA B C/O DOMTAR CORPORATION 234 KINGSLEY PARK DRIVE FORT MILL SC 29715 1 0 0 0 Deferred Share Units 2020-01-15 4 A 0 31.0979 0.00 A Common Stock 31.0979 2672.0238 D Deferred Share Units 2020-01-15 4 A 0 378.6205 0.00 A Common Stock 378.6205 32532.2347 D Each Deferred Share Unit is the economic equivalent of one share of Domtar Corporation Common Stock. These Deferred Share Units represent dividend equivalents credited to the reporting person's account, following Domtar Corporation's dividend payment of January 15, 2020. These Dividend Equivalent Deferred Share Units credited to the reporting person's account will be settled in cash or shares of Domtar Corporation on the first anniversary of the grant date they relate to. Total includes prior Deferred Share Units that have different exercise and expiration dates. The Deferred Share Units credited to the reporting person's account will be settled in cash or shares of Domtar Corporation when the reporting person ceases to be a director. Razvan L. Theodoru, Attorney-in-fact for Ms. Strobel 2020-01-17