TotalEnergies and its partners have taken the investment decision for the fourth phase of the Mero project (Libra block), located deep offshore, 180 kilometers off the coast of Rio de Janeiro, in the prolific pre-salt area of the Santos Basin. The Mero 4 Floating Production Storage and Offloading (FPSO) unit will have a liquid treatment capacity of 180,000 barrels per day and is expected to start up by 2025. It follows investment decisions for Mero 1 (startup expected in 2022), Mero 2 (startup expected in 2023) and Mero 3 (startup expected in 2024) FPSOs. All of them have a liquid processing capacity of 180,000 barrels per day.