| | | | | |
| Name* | Jurisdiction of Incorporation/Formation |
| Koppers Inc. | Pennsylvania |
| Cox Wood of Alabama, LLC | Alabama |
| Koppers Delaware, Inc. | Delaware |
| Koppers World-Wide Ventures Corporation | Delaware |
| Koppers Ventures Inc. | Delaware |
| Koppers Recovery Resources LLC | Kansas |
| Koppers Performance Chemicals Inc. | New York |
| Koppers Carbon Materials LLC | Pennsylvania |
| Koppers Utility Services LLC | Pennsylvania |
| Carolina Pole Leland, Inc. | North Carolina |
| Cove City Wood Preserving, Inc. | North Carolina |
| Leland Land, LLC | North Carolina |
| Structural Woods Preserving Company | North Carolina |
| Atlantic Pole-Georgia, LLC | South Carolina |
| Atlantic Pole-Virginia, LLC | South Carolina |
| Carolina Pole, Inc. | South Carolina |
| Koppers Recovery Resources LLC | South Carolina |
| Cox Wood Preserving Company | South Carolina |
| Koppers Utility and Industrial Products Inc. | South Carolina |
| North-South Wood Preserving Company, Inc. | South Carolina |
| Ruby’s Corner, LLC | South Carolina |
| Sustainable Management Systems, LLC | South Carolina |
| Sweetwater Wood Holdings, LLC | South Carolina |
| Continental Carbon Australia Pty Ltd | Australia |
| Koppers Australia Holding Company Pty Ltd | Australia |
| Koppers Australia Pty Limited | Australia |
| Koppers Carbon Materials & Chemicals Pty Ltd | Australia |
| Koppers Wood Products Pty Ltd | Australia |
| Koppers Ashcroft Inc. | British Columbia, Canada |
| Koppers (China) Carbon & Chemical Company Limited | Peoples Republic of China |
| Koppers (Tianjin) Trading Co., Ltd. | Peoples Republic of China |
| Koppers Mauritius | Republic of Mauritius |
| Koppers Europe ApS | Denmark |
| Koppers Denmark ApS | Denmark |
| Koppers European Holdings ApS | Denmark |
| Koppers Tar Tech International ApS | Denmark |
| Koppers International B.V. | Netherlands |
| Koppers Global B.V. | Netherlands |
| Koppers Australasian B.V. | Netherlands |
| Koppers UK Holding Limited | United Kingdom |
| Koppers UK Limited | United Kingdom |