Koppers Asia LLC Watch

from S-3ASR 39 pages [ ] Issuer and Wells Fargo Bank, National Association Trustee Indenture Dated as of , 20 Subordinated Debt Securities

from S-3ASR 38 pages [ ] Issuer and Wells Fargo Bank, National Association Trustee Indenture Dated as of , 20 Senior Debt Securities

from S-3ASR 49 pages [ ] Issuer and Wells Fargo Bank, National Association Trustee Indenture Dated as of , 20 Subordinated Debt Securities

from S-3ASR 51 pages [ ] Issuer and Wells Fargo Bank, National Association Trustee Indenture Dated as of , 20 Senior Debt Securities

from S-4 3 pages Supplemental Indenture (This “Supplemental Indenture”), Dated as of February 25, 2010, Among Koppers Ventures LLC, a Delaware Limited Liability Company, (The “Guaranteeing Subsidiary”), a Subsidiary of Koppers Inc. (Or Its Permitted Successor), a Pennsylvania Corporation (The “Issuer”), the Issuer, Koppers Holdings Inc., as Guarantor, the Other Subsidiary Guarantors (As Defined in the Indenture Referred to Herein) and Wells Fargo Bank, National Association, as Trustee Under the Indenture Referred to Below (The “Trustee”)

from S-3/A 42 pages [ ] Issuer and [ ] Guarantor(s) and [ ] Trustee Indenture Dated as of , 20 Subordinated Debt Securities Cross Reference Sheet Showing the Location in the Indenture of the Provisions Inserted Correlative to Sections 310 Through 318(a), Inclusive, of the Trust Indenture Act of 1939

from S-3/A 45 pages [ ] Issuer and [ ] Guarantor(s) and [ ] Trustee Indenture Dated as of , 20 Senior Debt Securities Cross Reference Sheet Showing the Location in the Indenture of the Provisions Inserted Correlative to Sections 310 Through 318(a), Inclusive, of the Trust Indenture Act of 1939