Sonoco Announces Uncoated Paperboard (URB) Mill Closure in Sumner, Washington

Sonoco Products Company (“Sonoco” or the “Company”) (NYSE: SON), one of the largest global sustainable packaging companies, today announced that it will permanently close its uncoated paperboard (URB) mill operations in Sumner, Washington effective immediately.  The mill has been in operation since 1915 and owned by Sonoco since 1980.

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