The public-private partnership contract for the Nimes and Montpellier railway bypass, a high-speed line handling both freight and passenger trains, was signed by Réseau Ferré de France (RFF) and OC'VIA.

During the construction phase, no less than 11 commercial banks (Bayer LB, BBVA, BTMU, DZ, KFW, HSBC, MIZUHO, NATIXIS, SMBC, SOCIETE GENERALE, UNICREDIT) will be putting up nearly €1 billion to enable OC'VIA to fund the project.

80% of total long term debt, has been underwritten for €521 million by the Caisse des Dépôts and €307 million by the EIB.

Several public authorities signed the funding agreements for this project on 25 April 2012:
- European Union and French State: 52 %
- Local/regional authorities: 28%, comprising
o Languedoc Roussillon Regional Council: 20%,
o Montpellier municipal authorities: 4%,
o Gard General Council: 2%
o Nimes municipal authorities: 2%
- RFF: 20%