2631  Paperboard Mills

Establishments primarily engaged in manufacturing paperboard, including
paperboard coated on the paperboard machine, from wood pulp and other fiber
pulp; and which may also manufacture converted paperboard products.
Establishments primarily engaged in integrated operations of producing pulp
and manufacturing paperboard are included in this industry if primarily
shipping paperboard or paperboard products.  Establishments primarily
engaged in manufacturing converted paperboard products from purchased
paperboard are classified in industry group 265 or 267. Establishments
primarily engaged in manufacturing insulation board and other reconstituted
wood fiberboard are classified in industry 2493.