Expansion of the nitric acid and ammonium nitrate plants in Mejillones (PANNA 4)

The project involved the expansion and modernization of the existing Prillex América Industrial Complex through the construction and operation of a new nitric acid and ammonium nitrate plant (PANNA), which increased nitric acid production and, consequently, raised ammonium nitrate production from 450,000 to 800,000 metric tons per year, according to the Environmental Impact Statement.

Pares&Alvarez developed the adaptation of the facilities outside the production area to provide the unit with the inputs, supplies, services, and raw materials required for its operation, in the quantities and conditions necessary for its functioning. The project required an investment of $230 million.