Paper Excellence (not rated) has announced an all-cash deal to acquire Domtar Corp. for US$55.50 per share, valuing the company at an enterprise value of about US$3 billion. Details regarding the status of Domtar's debt at close of the transaction, prospective capital structure, and influence of Paper Excellence on the company's financial policies are unknown. However, if Domtar's debt remains outstanding upon closing, we believe the combined entity could have a weaker credit profile than stand-alone Domtar. As a result, on May 11, 2021, S&P Global Ratings placed its 'BBB-' issuer credit and issue-level ratings on Domtar on CreditWatch with negative implications. The CreditWatch placement follows the announcement by Paper Excellence that it has signed a deal to buy Domtar