ANZ-owned finance company UDC Finance could be sold within the year, ratings agency Standard and Poor's said.
S&P said it had lowered its ratings on the 75-year-old company based on its reduced importance to the ANZ group. It also said the ratings remained on creditwatch negative.
"In our view, UDC's strategic importance to its ultimate owner, ANZ, has significantly weakened as we now believe that the finance company may be sold by the parent within one year," S&P said. "Consequently, we no longer equalize our ratings on UDC with those on its parent."
S&P said however that it belived that ANZ would still support UDC in periods of distress.
The agency lowered its long-term issuer credit rating on UDC to A- from AA- and the short-term issuer credit rating to A-2 from A-1+.
"The A-/A-' ratings on UDC remain on CreditWatch with negative implications, reflecting a one-in-two chance that we will lower our ratings on UDC within one year," it said.