Fixing exchange rates at certain levels will open the door to currency speculation and affect the overall economy, Chantavarn Sucharitakul said in a statement.

Global financial markets are likely to be more volatile and trade-related businesses should pay attention to currency risk management, she said after a meeting between the central bank and the Thai National Shippers' Council.

The baht rose about 0.2% to 31.06 per dollar on Tuesday after hitting a month-high last week. The group last week said the baht at 33-34 per dollar would help exports.

(Reporting by Orathai Sriring and Kitphong Thaichareon; Editing by Martin Petty)