Clearwater Paper Corporation manufactures and supplies solid bleached sulfate (SBS) paperboard packaging products in the United States and internationally. Its SBS paperboard is used in folding cartons, food service, and commercial printing items. The company also offers folding carton paperboards such as blister, carded packaging, and top sheet products; food service paperboard including liquid packaging, cup and plate categories, and rigid containers for juice, milk, and wine; and custom sheeting and slitting of paperboard products. It serves packaging converters through sales managers and was founded in 1926, headquartered in Spokane, Washington.