Thailand's economy is expected to grow 3% to 3.5% this year, a leading joint business group said on Wednesday, keeping its forecast from last year.

Tourist arrivals could reach 20 million to 25 million this year, said the group, which has representatives drawn from industry, banking and commerce. (Reporting by Kitiphong Thaichareon and Chayut Setboonsarng; Editing by Clarence Fernandez)