Royal Dutch Shell: CEO Peter Voser will retire from the oil company in the first half of 2014. Voser was appointed CEO in July 2009 and has been an executive director since 2004. The company didn’t give a reason for Voser’s retirement. Shell’s Chairman Jorma Ollila says the board will lead a review of internal and external candidates for the post.
Alcoa: The aluminum producer has appointed Susan Ringler (pictured) vice president and chief ethics and compliance officer. Ringler, who will join Alcoa on June 1, has been a deputy general counsel at water technology company Xylem. She succeeds Judith Nocito, director, global compliance and assistant general counsel, who will retire Aug. 1 after 34 years at Alcoa.
GEI Consultants: Raymond D. Hart is the new president of the civil, geotechnical, environmental, water resources, and ecological science and engineering firm. Hart has served as the company’s chief operating officer for the past seven years. He replaces Francis D. Leathers, who will return to full-time client practice after working as GEI’s president for the past 14 years. Ronald Palmieri, formerly GEI senior vice president and central region manager, has been named GEI’s new chief operating officer, replacing Hart in that position.
DenBeste Water Solutions: The fluid containment and management systems company has named Les Carmichael as its CEO. Carmichael has also been elected to the DenBeste board of directors. Carmichael most recently was CEO of Taylor Companies, a subsidiary of Gibson Energy.
Steel Dynamics: Robert A. Simon has been appointed vice president and general manager of the steel producers and metals recycler’s structural and rail division. The position became vacant following John Nolan’s move to the newly created position of vice president product development. Most recently, Simon was executive vice president of Evraz Tubular Product Group.
Solid Waste Association of North America: Sara Bixby has been hired as the group’s new deputy executive director, Waste & Recycling News reports. Bixby, a past SWANA president, has been director of the South Central Iowa Solid Waste Agency for the past 10 years. Bixby’s hiring comes months after former SWANA deputy executive director Lori Scozzafava left in October.