We have 40 years of experience in mining and cement industry, with over 200 projects delivered in more than 40 countries across 5 different continents.

We also have a remarkable civil works experience including the construction of tailings dams. Completed projects include the Antamina Mine taillings dam Phase Vib in Peru and the Talabre taillings dam in Chile. Completed water dams include the Chuspiri dam, in the Las Bambas mining project, the Antamina mine polishing pond dam built-up, the Asana River diversions barrier in the Quellaveco mining project and the Pad la Quinua leaching pads in the Yanacocha mine; with all of these projects located in Peru. OHL experience also includes several earthwork projects.