Exhibit 21
KOPPERS HOLDINGS INC.
SUBSIDIARIES OF THE COMPANY
AMENDED LIST OF SUBSIDIARIES
| Entity Name | State or Country of Organization | |
Koppers Inc. | Pennsylvania | |
Koppers Asia LLC | Delaware | |
Koppers Concrete Products, Inc. | Delaware | |
Concrete Partners, Inc. | Delaware | |
Koppers Delaware, Inc. | Delaware | |
Koppers Monessen Partners LP | Delaware | |
Koppers Redemption, Inc. | Delaware | |
World-Wide Ventures | Delaware | |
Koppers Assurance, Inc. | 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 Shipping Pty. Ltd. | Australia | |
Koppers (Beijing) Chemical Co., Ltd. | Peoples Republic of China | |
Koppers (China) Carbon & Chemical Company Limited | Peoples Republic of China | |
Koppers Mauritius | Republic of Mauritius | |
Koppers Europe ApS | Denmark | |
Koppers Denmark A/S | Denmark | |
Koppers Trading Denmark A/S | Denmark | |
Koppers European Holdings A/S | Denmark | |
Koppers Luxembourg S.ar.l | Grand Duchy Luxembourg | |
Koppers Poland Sp.zo.o. | Poland | |
Koppers UK Holding Limited | United Kingdom | |
Koppers UK Limited | United Kingdom | |
Koppers UK Transport Limited | United Kingdom | |
Koppers Lambson Limited | United Kingdom | |
