HARRISBURG, Pa. (AP) - Industrial services company Harsco Corp. on Friday said its chief financial officer and treasurer resigned.

Stephen Schnoor's departure was effective Friday. Harsco named Barry Malamud, its current vice president and corporate controller, as interim CFO.

The Camp Hill, Pa.-based company said it hired the firm of Heidrick & Struggles to help search for a permanent replacement.

Harsco shares rose 20 cents to end Friday trading at $19.06.