It was discovered that apart from the survey commissioned by the central government, the regional government of Cajamarca had also negotiated an international survey at the same time . Until that moment this report had included some observations into the environmental impact of the mining project.
Después se dio a conocer que aparte del peritaje contratado por el gobierno central, el gobierno regional de Cajamarca había gestionado un peritaje internacional paralelo, que hasta ese momento ya contenía algunas observaciones al impacto ambiental del proyecto minero.