Mark Roberts is on the board of Salt Institute and Chief Operating Officer for K+S AG.

In his past career Mr. Roberts occupied the position of Chief Executive Officer at International Salt Co. LLC, Vice President at K+S Kali, Marketing Manager at Victaulic Co., Chief Executive Officer of Morton International LLC, President at K+S North America Corp., Sales Manager at K+S Minerals & Agriculture GmbH and National Account Manager at Ashland Chemical Co.

Mark Roberts received an undergraduate degree from Lehigh University.