Worley, on behalf of Orica Australia, engaged McCosker in the upgrade and expansion of the ammonium nitrate plant, including the infrastructure required to support this plant.

A major portion of the works included construction of several fluid retention structures, cooling towers, acid retaining slabs and bunds, left wells and oil separators. A total of 3,000m3 of concrete was proud in a tight eight month schedule, with significant changes to the project design and scope of works presented throughout this period.