But he said the need for increased efficiency and competition made some cross-border European mergers necessary.
He added that the agreement was likely to speed cross-border mergers in the European airline industry.
"Until two or three years ago, cross-border mergers were thought of as too risky."
The deal could be the largest cross-border merger in Central Europe's history.
The usual alternative for such companies is a cross-border merger, but those are problematic in Australia.
He told ministers that the main obstacle to cross-border mergers within the union was politics.
"But cross-border mergers and acquisitions activity was a lot slower in the early 1990's than it has been over the last year or so."
What information is needed on the cross-border mergers form?
Is there a fee for filing the cross-border mergers form?
We are unable to advise on the suitability of a cross-border merger for your company.