US tariff keeps RYAM's Temiscaming paperboard mill idle; Q3 net loss USD 229m on impairments

Rayonier Advanced Materials (RYAM) economically idled its Temiscaming paperboard and high-yield pulp operations on 3 October 2026 after a 50% US tariff on Canadian paperboard, effective 22 August, made production there uneconomic; the operations remain idle at an estimated carrying cost of USD 2-3m a month. RYAM's Q3 net loss was USD 229m, including USD 221m of non-cash impairments, while group adjusted EBITDA rose to USD 52m. The tariff and idling have slowed bidder talks in RYAM's strategic review, which it targets to complete in the first quarter of 2027.

Why this mattersA US tariff has made a Canadian paperboard and high-yield pulp mill uneconomic, taking its output off the market and slowing bidders in RYAM's strategic review.

• Temiscaming paperboard and high-yield pulp operations were economically idled on 3 October 2026 and remain idled
• The 50% US tariff on Canadian paperboard took effect on 22 August 2026 and generated USD 2m of Q3 costs
• Estimated carrying costs at the idled operations are USD 2-3m per month
• Q3 net loss was USD 229m, or USD 3.40 per diluted share, including USD 221m of non-cash impairments
• Paperboard & High Yield Pulp posted a Q3 operating loss of USD 224m on sales of USD 70m
• Group Q3 adjusted EBITDA rose to USD 52m from USD 40m in Q2 on net sales of USD 383m; the strategic review targets completion in Q1 2027

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