Exxon Mobil Corp. recently announced that Donald D. Humphreys, senior vice president and principal financial officer, has announced plans to retire on February 1, 2013.

NETZSCH Group recently announced that Otto Max Schaefer, Ph.D., has resigned as chairman of Erich NETZSCH GmbH & Co. Holding KG, as of December 31.

Sika Corp.’s Industry Products Division recently announced the appointment of new personnel in the Transportation A&C Business Unit.

Hockmeyer recently announced it has added Jim Cunningham to its sales team.

Premier Industrial Supply recently announced the decision to relocate and construct a new facility in Massillon, Ohio.

The Supervisory Board of AkzoNobel recently announced that Ton Büchner will resume his duties as CEO on December 7, following a full recovery.

The Adhesive and Sealant Council Inc. (ASC) recently announced a call for papers for its 2013 Spring Convention, which will take place April 21-23 in Atlanta.

OMNOVA Solutions recently announced the appointment of Dowd & Guild Inc. as distributor for the West Coast and southern territories for several markets.

NP Group is a full-service supplier of specialty raw materials to a variety of manufacturing industries in the Southwest U.S.

PPG Industries recently announced the appointment of Eric K. Thiele, PPG assistant treasurer and credit director, as treasurer and a company officer, effective December 1.