sentences:  Operations are performed by the subsidiaries GC Rieber Shipping AS, GC Rieber Skinn AS, GC Rieber Salt AS, GC Rieber Oils, GC Rieber Compact AS and GC Rieber Eiendom AS.The company's CEO, Paul-Christian Rieber, is a former president of the main representative body for Norwegian employers, the Confederation of Norwegian Enterprise.The company was founded in 1879 by Gottlieb Christian Rieber.