The Ratchaprasong Square Trade Association (RSTA) has appealed to anti-government protesters asking them to bring a swift end to their rally in the area.
The association which represents businesses, shops and hotels, said a prolonged rally would damage the economy and hamper confidence in Thailand for foreign tourists, investors and businessmen.
Its members plan to meet with police and other agencies if the protest in the area drags on, the RSTA said in a statement released on Monday.