Jan. 24 (Bloomberg) -- Caisse d’Amortissement de la Dette Sociale plans to sell long-dated bonds in euros, according to a banker involved in the transaction.

BNP Paribas SA, HSBC Holdings Plc, Natixis and Societe Generale SA are managing the deal, the banker said.

To contact the reporter on this story: Hannah Benjamin in London at hbenjamin1@bloomberg.net

To contact the editor responsible for this story: Ben Martin at bmartin38@bloomberg.net