Cardboard prices stayed flat.

While the demand has increased, the PPI suggests that, on average, box makers have not increased their prices. International Paper​ described its pricing for industrial packaging as "stable" in its most recent earnings. But WestRock has already notified its customers of a price increase that will begin showing up in the early part of 2021.

隨著需求激增，紙板價格保持平穩，但這可能不會持續。儘管需求增加了，但PPI顯示，平均而言，包裝盒製造商並未提高價格。 國際紙業公司（International Paper）在其最新收益中將其工業包裝的定價描述為“穩定”。 但WestRock已將其提價通知其客戶，該提價將於2021年初開始出現。

Source: https://www.supplychaindive.com/news/cardboard-corrugated-box-packaging-ecommerce-price-westrock-international-paper/592781/