OTHER INFORMATION
−Removed: During the three months ended March 31, 2025 , none of our directors or executive officers adopted , modified or terminated any Rule 10b5-1 trading arrangement or any non-Rule 10b5-1 trading arrangement (as such terms are defined in Item 408 of Regulation S-K).
−Removed: Annual Incentive Plan, as amended and restated effective February 12, 2025.
−Removed: Koppers Holdings Inc.
−Removed: Amended and Restated 2020 Long Term Incentive Plan (Incorporated herein by reference to Exhibit 99.1 to the Registration Statement on Form S-8 filed on May 9, 2025 by Koppers Holdings Inc.
+Added: During the three months ended June 30, 2025 , none of our directors or executive officers adopted , modified or terminated any Rule 10b5-1 trading arrangement or any non-Rule 10b5-1 trading arrangement (as such terms are defined in Item 408 of Regulation S-K).
+Added: Amendment No.
+Added: 6, dated as of June 17, 2025, to the Credit Agreement, dated as of June 17, 2022, by and among Koppers Inc., as Borrower, Koppers Holdings Inc., as Holdings, the Lenders and L/C issuers party thereto, PNC Bank, National Association, as Revolving Administrative Agent, Collateral Agent and Swingline Loan Lender, and Wells Fargo Bank, National Association, as Term Administrative Agent (incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on June 18, 2025).
Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
8 unchanged sentences
(R EGISTRANT )
+Added: August 8, 2025
/s/ J immi S ue S mith
3 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.