Anddes contributes to the success of the Constancy project, through:

• Platform stability analysis of the construction camp and liquefaction analysis of the foundation.
• Detail engineering of 6 dumps of inappropriate and organic material.
• Study of 5 quarries for construction materials.
• Basic engineering of mine clearance installation (WRF).
• Study of the closure plan of the Esperanza quarry and the Cerro Negro platform 2.
• Detailed engineering of the inadequate material tank DM7.
• Feasibility study of 02 quarries and 05 platforms.
• Updating of the Constance pit geotechnical survey for Phases I, II and III
• Feasibility study of unloading platform, unsuitable material deposit DM4, clay quarry and limestone quarry.
• Detail engineering of the unsuitable material tank DM4.
• Preparation of the six-monthly report on the gradual closure of the DM7 storage tank and dismantling of the San Antonio temporary tap.
• Development of the technical support for the development of the phasing-out activities in the unsuitable material depot DM6.
• Engineering review and failure of the process pool geomembrane and redesign of the coating system. Quality assurance of the construction for the repair of the process pool.