Section 10 Pulp of wood or of other fibrous cellulosic material;"Recovered (waste and scrap) paper or paperboard; paper and paperboard and articles thereof 48 Paper or paperboard; articles of paper pulp, of paper or paperboard 48 04 Uncoated kraft paper and paperboard, in rolls or sheets (excl. 48.02 or 48.03) 48 04 21 Unbleached sack kraft paper Commodity Code Description 48 04 21 00 Unbleached sack kraft paper