WestRock Company, a global provider of sustainable paper and packaging solutions, will permanently cease operating its paper mill in Tacoma, Washington, and will conclude production by September 30, 2023.

The company has stated its commitment to improving its return on invested capital as well as maximizing the performance of its assets. The combination of high operating costs and the need for significant capital investment were the determining factors in the decision to cease operations at the mill.

The Tacoma mill employs approximately 400 people. Employees will receive severance and outplacement assistance in accordance with WestRock policy and labor union agreements.

“WestRock is working to optimize our operational footprint and consolidate production in order to improve our return on invested capital, and we have made the difficult decision to close the Tacoma mill as part of this effort,” said David Sewell, chief executive officer at WestRock.