Knife River Corporation

Knife River Corporation is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Coal Miners & Shippers
• Sand & Aggregate
• Stone & Brick Artificial

North American Industry Classification System (NAICS) Categories:

• Bituminous Coal Underground Mining > Mining - Coal
• Home Centers > Masonry Materials & Supplies > Sand & Aggregate
• Other Building Material Dealers > Stone & Stone Products > Stone & Brick Artificial
• Support Activities For Rail Transportation

Standard Industry Classification (SIC) Categories:

• Bituminous Coal Underground > Mining - Coal > Coal Miners & Shippers
• Transportation Services, Nec > Specialty Transportation Services > Coal Miners & Shippers
• Lumber & Other Building Materials > Masonry Materials & Supplies > Sand & Aggregate
• Lumber & Other Building Materials > Masonry Materials & Supplies > Stone & Brick Artificial