Mozambican state companies have failed to account for about a quarter of the proceeds of $2 billion in loans being investigated, according to a report by Kroll LLC that creditors said was needed for debt restructuring talks to start.

Mozambican state companies have failed to account for about a quarter of the proceeds of $2 billion in loans being investigated, according to a report by Kroll LLC that creditors said was needed for debt restructuring talks to start.