Chemical distribution company D.B. Becker Co. Inc., Clinton, NJ, has hired Guy Trerotola to work for business development within the company.

The Valspar Corp., Minneapolis, announced the planned retirement of Lori A. Walker, Senior Vice President and Chief Financial Officer.

Dr. Gregory P. Olson, QuesTek Innovation LLC’s Chief Science Officer and company co-founder, was inducted into the American Academy of Arts and Sciences.

Lennart Holm, Perstorp’s Chairman of the Board, is leaving the company.

Sika Automotive Division USA has appointed a new Key Account Manager.

Chromaflo Technologies, supplier of advanced colorants and chemical dispersions, appointed David Stubbs the new Southwest Territory Manager for the Americas region.

Alberdingk Boley Inc. has appointed Mario Karshalev Technical Sales Representative in the Western U.S. Region.

Emerald Kalama Chemical, a business unit of Emerald Performance Materials, appointed Raúl van Adrichem K-FLEX^® Sales Manager for the EMEA region.

The specialty chemicals group ALTANA AG is making changes in the top positions of its four divisions.

Jim Connery has joined specialty chemical distributor Archway Sales Inc., St. Louis, MO.