The cement industry is one of the main industries that uses large amounts of paper. Cement sacks are usually made out of kraft paper or paperboard. The kraft paper is a heavy duty paper that is made out of wood pulp. It is usually brown in color. The paperboard is a lighter weight paper that is made out of recycled paper. It is usually white in color. There are many companies that make cement sacks. Some of the more popular companies are: 1. Carolina Paperboard Company 2. Cemex 3. Georgia-Pacific 4. International Paper 5. MeadWestvaco 6. North American Paper Company 7. Smurfit-Stone Container Corporation 8. Temple-Inland 9. Weyerhaeuser 10. Willamette Industries