SAO PAULO, May 22 (Reuters) - Brazilian pulpmaker Suzano confirmed on Wednesday it is interested in assets owned by International Paper, but added in a securities filing that no decision regarding the deal has been made so far.

Earlier this week, Reuters reported that the company had been in talks with its advisers about sweetening a $15 billion acquisition offer for International Paper. (Reporting by Peter Frontini; editing by Gabriel Araujo)