| 1. | Where is Koppers corporate headquarters? |
| Koppers principal offices are located at 436 Seventh Avenue, Pittsburgh, Pennsylvania 15219-1800. |
| 2. | Where is Koppers incorporated? |
| Koppers is incorporated in the Commonwealth of Pennsylvania. |
| 3. | What is Koppers fiscal year? |
| Koppers fiscal year end coincides with the calendar year, which is December 31st. |
| 4. | How is Koppers stock traded? |
| Koppers stock is traded on the NYSE under the ticker symbol “KOP”. |
| 5. | Does Koppers pay dividends? |
| Yes. Koppers pays dividends. |
| 6. | Does Koppers offer direct deposit of dividends? |
| Koppers offers direct deposit of dividends through its transfer agent, Mellon Investor Services. |
| 7. | Does Koppers have a dividend reinvestment plan and how can I participate? |
| Currently, Koppers does not have a dividend reinvestment plan. |
| 8. | When were Koppers stock splits? |
| Koppers has not had a stock split since trading commenced on its common stock. |
| 9. | Who is Koppers stock registrar/transfer agent? |
| Mellon Investor Services is Koppers stock registrar/transfer agent. They can be reached in writing, by phone or online at: Mellon Investor Services LLC Newport Office Center VII 480 Washington Blvd. Jersey City, NJ 07310 866 293 5637 www.melloninvestor.com |
| 10. | Does Koppers have a direct stock purchase plan? |
| Currently, Koppers does not have a direct stock purchase plan. |
| 11. | Who is Koppers auditor? |
| Koppers retains Ernst & Young LLP, Pittsburgh, Pennsylvania as its independent auditors. |
| 12. | Who is Koppers legal counsel? |
| Koppers retains Reed Smith LLP, Pittsburgh, Pennsylvania as its corporate legal counsel. |
| 13. | How many employees does Koppers have? |
| Koppers has approximately 2,000 employees worldwide. |
| 14. | How many locations does Koppers have worldwide? |
| Koppers has 27 manufacturing facilities located in the United States, Australia, China, the United Kingdom and Denmark. |
| 15. | Where can I get the latest corporate news releases? |
| Koppers corporate news is available for viewing on our Press Releases page. |
| 16. | Where can I get the latest financial reports? |
| Koppers financial reports are available for viewing on our Quick Downloads or SEC Filings pages. |
| 17. | How can I view documents Koppers has filed with the Securities & Exchange Commission (SEC), including Forms 10-K and 10-Q? |
| Koppers SEC filings can be viewed on our SEC Filings page. |
| 18. | How can I obtain further information or materials on Koppers? |
| Further information or materials on Koppers is available on Koppers corporate website at www.koppers.com. |
| 19. | When is your next earnings release scheduled? How can I receive email updates for this information? |
| Koppers next earnings release has not been scheduled. To automatically receive earnings release updates via email, please visit our Email Alerts page. |
| 20. | Whom should I contact regarding investor inquiries? |
| Please submit investor inquiries online at our Request Information page or by mail at: Koppers Holdings Inc. Attn: Investor Relations 436 Seventh Avenue Pittsburgh, PA 15219-1800 |
| 21. | How can I obtain a copy of your annual report? |
| Koppers annual reports can be obtained on our Annual Reports page. |
| 22. | When and where will Koppers hold its next annual meeting? |
| Koppers next annual meeting is scheduled for May 7, 2008 at 10:00 a.m. EDT at the Pittsburgh Airport Marriot. |