NEW YORK — Bob Burdette has retired as president and chief executive officer of Eramet SA subsidiary Eramet North America Inc.

Burdette is being replaced by John Willoughby, president and chief executive officer of Marietta, Ohio-based Eramet Marietta Inc., Eramet’s North American manganese alloy production facility.

Burdette, who had been with Eramet for 16 years, will "maintain a connection with us in an advisory role for a period of time," Willoughby told AMM. "We have appreciated Bob’s service; he held numerous positions before he took over as president, and we hope to continue to rely on his expertise as I transition into this new position and the organization does as well."

Burdette’s retirement was effective at the end of November.