Suzano (SUZ) has been in talks with advisers about increasing its $15B acquisition offer for International Paper (IP), Anirban Sen and David French of Reuters report, citing people familiar with the matter. Earlier this month, Suzano approached International Paper to express interest in an all-cash acquisition worth roughly $42 per share. The deal is conditional on International Paper abandoning its agreement to acquire DS Smith (DITHF) for $7.2B.