22 June 2026 | 4:58AM BST Equity Research Europe Paper & Forest Products: US Paper Update: Containerboard up $50/st; Boxboard still flat in June As per RISI's recent release on Friday (June 19), US containerboard prices are up another $50/st m/m in June, for a total net increase of $100/st YTD. We attribute the strong pricing momentum to higher costs, including oil, diesel, and transportation costs, as well as to supply rationalization the market has undergone in the recent past (as highlighted in our initi ...