Negotiated invitation to tender, deadline 01/03/2021, for the outsourcing of centralized technical management of Hardelot, A14 and Roissy tunnels. Click here for tender documents and here where tenders must be sent. Duration of the contract is 36 months. Contact Sanef, Issy-les-Moulineaux, email Consultations.sanefgroupe@sanef.com. For further on the tender, please click here. Ref.n. P2020002901. 05/21.