Clearwater Paper Corporation is an independent supplier of solid bleached sulfate (SBS) paperboard packaging products to North American converters. The Company produces quality paperboards that provides sustainable packaging solutions for consumer goods and food service applications. The Company operates through Pulp and Paperboard segment. It supplies bleached paperboard to quality-conscious printers and packaging converters, and offers services that include custom sheeting, slitting and cutting. SBS paperboard is a premium paperboard grade that is used to produce folding cartons (also includes blister and carded packaging and top sheet), food service (including liquid packaging, cups and plates) and commercial printing items. It produces paperboard that is then converted and printed by independent converters and primarily used in folding carton and food service applications. Food service paperboard includes both liquid packaging and cup and plate categories.