Sonoco acquired WestRock's 65% interest in RTS packaging. Formerly a joint venture between Sonoco and WestRock, RTS Packaging will now be wholly owned by Sonoco. The acquired company's primary product is preassembled collapsed partitions used to keep glass bottles and other products separated within a corrugated outside carton. Other products produced include 6-pack carriers, with partitions intact, shipped collapsed and flat to bottlers, as well as slip sheets manufactured to spec for stacking products. It's all about partitions.