Amey plans to divest stakes in some PFI projects, its parent company Ferrovial has announced.
The revelation came as the Spanish infrastructure firm said it expected to register an additional provision of £208M related to a troubled highways contract with Birmingham City Council.
The local authority and Amey are involved in a legal dispute about the quality of works carried out so far under the 25-year maintenance and management service, which started in 2010.
A freedom of information request by campaigners revealed that the PFI contract between the engineering company and the council included a requirement to chop down 17,500 trees.
A Ferrovial spokesman declined to comment on the specific PFI contracts referred to in the statement.
New Civil Engineer has contacted Amey for comment.