PITTSBURGH — Harsco Corp. chief financial officer Stephen J. Schnoor has stepped down after nearly 25 years with the company.

Vice president and corporate controller Barry E. Malamud has been named interim chief financial officer.

The Camp Hill, Pa.-based global mill services provider has retained advisory firm Heidrick & Struggles International Inc. to spearhead its recruitment of a permanent replacement.

The company gave no indication as to why Schnoor, who also served as senior vice president and treasurer, left the company. He had been with the company since 1988, according to a regulatory filing.

"Steve has dedicated himself throughout his many years of Harsco service to the highest principles of financial integrity and prudent fiscal management," president and chief executive officer Patrick Decker said. "We recognize also that it is time to move forward under new leadership in this area as we shape the course of our renewed vision for Harsco as one of the world’s premier industrial companies."