International Paper to Acquire NORPAC for $360 Million

Acquisition expands U.S. containerboard capacity for global paper products leader

Apr. 20, 2026 at 9:12am

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A photorealistic studio still life featuring a stack of premium, matte-finished cardboard boxes in neutral tones, conceptually representing International Paper's sustainable packaging solutions.International Paper's acquisition of NORPAC will bolster its sustainable packaging capabilities and containerboard production on the West Coast.Seattle Today

International Paper, a leading global producer of renewable fiber-based packaging, pulp and paper products, has announced an agreement to acquire North Pacific Paper Company (NORPAC) from private equity firm One Rock Capital Partners for $360 million. The acquisition will expand International Paper's containerboard production capacity in the United States.

Why it matters

The deal strengthens International Paper's position as a major player in the sustainable packaging and containerboard market, allowing the company to better meet growing demand for its products. NORPAC operates a large paper mill in Washington state, providing International Paper with additional production capabilities on the West Coast.

The details

Under the terms of the agreement, International Paper will acquire all outstanding equity interests in NORPAC, which operates a 450,000 ton per year containerboard mill in Longview, Washington. The acquisition is subject to customary closing conditions and regulatory approvals, and is expected to close in the third quarter of 2026.

  • International Paper announced the acquisition agreement on April 20, 2026.
  • The deal is expected to close in the third quarter of 2026, pending regulatory approvals.

The players

International Paper

A leading global producer of renewable fiber-based packaging, pulp and paper products.

NORPAC

North Pacific Paper Company, a containerboard mill operator in Longview, Washington that is being acquired by International Paper.

One Rock Capital Partners

The private equity firm that currently owns NORPAC and is selling the company to International Paper.

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What they’re saying

“This acquisition strengthens our position as a leading producer of sustainable packaging solutions and containerboard in the United States.”

— Mark Sutton, Chairman and CEO of International Paper

What’s next

The deal is expected to close in the third quarter of 2026 after receiving regulatory approvals.

The takeaway

The acquisition of NORPAC will allow International Paper to expand its containerboard production capacity and solidify its position as a major player in the sustainable packaging market, meeting growing demand for its products.