OREANDA-NEWS. Fitch Ratings has affirmed the Long-Term Foreign- and Local-Currency Issuer Default Ratings (IDR) on Australia's State of Queensland (Queensland) and Queensland Treasury Corporation (QTC) at 'AA', and Foreign- and Local-Currency Short Term IDR at 'F1+'. The Outlooks are Stable. At the same time, Fitch has affirmed the rating on QTC's Commonwealth of Australia guaranteed outstanding senior unsecured debt at 'AAA'.