ATLANTA (News release) -- WestRock Company announced it will permanently cease operating its paper mill in Tacoma, Washington, and will conclude production by September 30, 2023.

WestRock is committed 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.

"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 B. Sewell, chief executive officer at WestRock. "One of the most critical factors we consider when making the difficult decision to close a facility is the impact it will have on the lives of our team members, and we are committed to assisting our Tacoma team with exploring roles at other WestRock locations and nearby companies as well as providing outplacement assistance."

The Tacoma mill produces kraft and white top liner and bleached pulp for a combined annual capacity of 510,000 tons. The majority of kraft and white top liner will be transitioned to other mills in the WestRock system to serve our customers in North America and international markets. Approximately 60,000 annual tons of pulp and 25,000 annual tons of specialty grade capacity will be reduced due to the shutdown.

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