NEW YORK--(BUSINESS WIRE)--Fitch Ratings has assigned an 'AAAsf' rating to the class A-R refinancing notes issued by Magnetite VI, Limited/Corp. (Magnetite VI). The Rating Outlook is Stable. KEY RATING DRIVERS Fitch has been notified of the proposed Second Supplemental Indenture that would cause a refinancing of outstanding notes and amend certain terms and definitions of the indenture. On June 15, 2015, Magnetite VI issued refinancing notes as class A-R, B-R, C-R, D-R, and E-R notes and applie