Philadelphia-based CDI Corp. announced that it will be providing detailed civil, electrical, mechanical, process and structural engineering for the core area of Nucor’s direct reduced-iron facility in St. James.

The $750 million plant is expected to produce 2.5 million metric tons of direct reduced iron a year. The plant will convert iron ore pellets into the reduced iron for Nucor’s steel mills.

CDI said it is working with Tenova HYL Technologies on the plant. Tenova engineers are providing electrical and mechanical equipment materials for the plant’s core area. The plant is expected to be done in mid-2013.