NEW YORK--(BUSINESS WIRE)--Fitch Ratings has upgraded Maestro Peru S.A.'s (Maestro) Local and Foreign Currency Issuer Default Ratings (IDR) and senior unsecured notes ratings to 'BBB' from 'B'. The Ratings have been removed from Rating Watch Positive. The Rating Outlook is Stable. Maestro's ratings upgrade reflects the strong operational and strategic ties between Maestro and its holding company S.A.C.I. Falabella (Falabella). Maestro was acquired by Falabella subsidiary, Sodimac Peru, in Septe