Would you like a receipt? methylprednisolone classification Fitch Ratings has maintained Arab Tunisian Bank's (ATB) 'BBB-' Long-term foreigncurrency Issuer Default Rating (IDR), 'BBB' local currency IDR, '2' Support Rating (SR) and'AA (tun)' National Long-Term Rating on Rating Watch Negative (RWN). ATB's Viability Rating (VR)has been affirmed at 'b'. A full list of rating actions is at the end of this comment.