By Francesca Landini
MILAN (Reuters) - Investors in Atlantia <ATL.MI>, including Italy's wealthy Benetton family, lined up on Wednesday to back a surprise move by the infrastructure group to amend a deal with the government over its Autostrade per l'Italia unit.
The move is the latest twist in a two-year battle over the future of Autostrade and comes just after Monday's opening of a new motorway bridge in Genoa to replace the Autostrade-managed viaduct that collapsed in 2018 with the loss of 43 lives.
Late on Tuesday, Atlantia said it had run into difficulties reaching agreement with state lender Cassa Depositi e Prestiti (CDP) over the value of Autostrade under a government-backed plan in which CDP would take control of the unit as a first step to an eventual listing.
It said it was considering alternative plans, either to sell the whole 88% stake through a competitive auction or to split it off into a separate vehicle prior to a bourse listing.
The Benetton family, which controls Atlantia through a 30% stake, indicated on Wednesday that it supported the group's proposal to withdraw from Autostrade "in a market-friendly way and respecting the rights of all shareholders and stakeholders".
It would consider the Autostrade stake that it would receive under the spin-off as a non-strategic asset and would sell the shares at market conditions, it said.
The statement from the family holding company Edizione appeared designed to ease concerns over the family's future role in Autostrade, an issue that had become a source of political tension with the government.
Separately Atlantia's minority shareholders TCI Fund Management and Spinecap told Reuters they were supportive of the group's new proposal.
TCI, which lodged a complaint with the European Commission over the Autostrade deal last month, filed a follow-up on Aug. 4 describing its sale to CDP as an "unlawful expropriation of shareholders' rights", according to a document seen by Reuters.
The CEO of French investment company Spinecap, which owns a small stake in Atlantia, told Reuters he was also in the process of filing a complaint with the EU on the same issue.
"We believe the transaction (proposed in July) is unlawful," it said in a letter sent to Atlantia on July 28 and seen by Reuters.
In the letter, Spinecap asked Atlantia's board to redesign the agreement and said any deal at an implied pre-money equity value below 12 billion euros ($14.3 billion) for Autostrade "must be rebuffed".
(Reporting by Francesca Landini; Editing by James Mackenzie, Barbara Lewis and Jan Harvey)