The Korea Fair Trade Commission (KFTC) imposed corrective orders and a combined fine of 3.009 billion Korean won on Moorim SP, Moorim Paper, Moorim P&P, Hansol Paper, Hankuk Paper and Hongwon Paper for rigging six printing paper tenders issued by Nongmin Shinmun between June 2021 and November 2024. The companies allegedly agreed in advance through meetings and phone calls on the winning bidder, cover bidders and bid prices in tenders using restricted competition and a lowest-price format. The average winning bid rate rose to about 96.2% during the collusion period, from 87.6% in 2018–2020, and reached 99.4% of the reserve price in some tenders. Moorim P&P received the largest fine, at 948 million won, while Hansol Paper and Hankuk Paper were referred to prosecutors. The KFTC described the conduct as an extension of a printing-paper price-fixing case sanctioned in April 2026. The six companies account for more than 95% of South Korea’s domestic printing-paper manufacturing and sales revenue and about 81% including imports.