Other funds are holding back until American regulators settle a legal issue.
American regulators had given an early indication the deal would be approved, though they dragged their feet because of the change in administration.
American regulators have said they should have been notified earlier.
If American regulators are seen as nervous about a country, that alone can further shake its standing.
When American regulators discovered that the ministry had known about the loss for six weeks, they were surprised and angry.
The company settled a similar case with American antitrust regulators in 1994.
American regulators were busy with a number of high-profile cases last year.
Without the extension, it was not expected to gain the approval of American regulators in time.
The British and American regulators have reached a different conclusion.
American regulators are expected to follow suit later this year.