Tank Collapse at Longview Paper Mill Disrupts Liquid Packaging Supplies
A major plant halt at Longview tightens liquid paperboard supply and pushes beverage carton buyers to alternative suppliers.
Briefing
A chemical tank collapse in May 2026 at the Nippon Dynawave Packaging mill in Longview, Washington, halted operations at a major producer of North American beverage carton material. Recovery work began in August 2026 to install temporary storage tanks, though the mill has yet to announce a restart date. The extended outage is forcing procurement teams to seek alternative suppliers of liquid packaging board, pushing up lead times and contract prices for gable-top cartons and paper cups. The Longview mill accounts for 280,000 tons of annual board capacity, feeding converters that produce eight billion single-serve food and beverage containers a year.
Context
Prior to the collapse, liquid packaging board buyers operated in a stable domestic market. Procurement teams tracked pulp feedstocks and regional pricing around a predictable flow of board from Pacific Northwest suppliers to packaging converters. The main concern for buyers had simply been whether seasonal surges in dairy and beverage demand might cause minor spot-market price spikes, rather than a complete shutdown at a key domestic mill.
Analysis
Production halted when a 900,000-gallon white-liquor tank collapsed. The chemical solution is required to break down wood chips into pulp; without it, raw pulp production stopped, instantly idling downstream extrusion and coating lines. With the chemical recovery circuit offline at the center of the mill, the entire facility came to a standstill. Downstream converters responded to the supply gap by shifting orders to alternative mills across North America and Europe. That sudden surge in demand has saturated order books at competing suppliers, extending factory lead times and driving up finished carton prices.
Parameters
- Annual board capacity ~ 280,000 tons of liquid packaging board and pulp.
- Downstream volume impact ~ Eight billion single-serve beverage cartons produced per year from this supply.
- Incident date ~ May 26, 2026, when the white-liquor storage tank collapsed.
- Recovery commencement date ~ August 17, 2026, when crews began removing damaged and out-of-service tanks.
Outlook
Domestic supplies of liquid packaging board will remain tight through the end of 2026. Procurement teams should track announcements from parent company Nippon Paper Group on construction progress and regulatory clearance for temporary storage tanks. Safety permit approvals and a target date for trial restarts will provide the first real signs of when carton supply might ease.
Verdict
Beverage carton buyers should establish backup supply contracts with alternative domestic or European mills to protect their packaging operations from extended downtime.