What changed 10-Q

Item 5. Other Information

2021-08-06 compared with 2021-05-07 · 3 added, 6 removed, 20 unchanged (31% of the section changed)

1 unchanged sentence

Not applicable.

Form of Change in Control Agreement entered into as of March 1, 2021 between the Company and the named Executive.

First Amendment to the Koppers Holdings Inc.

2020 Long Term Incentive Plan (Incorporated by reference to Exhibit 99.2 to our Registration Statement on Form S-8 filed on May 7, 2021 (File No.

333-255869)).

Amended and Restated Koppers Holdings Inc.

Employee Stock Purchase Plan (Incorporated by reference to Exhibit 99.1 to our Registration Statement on Form S-8 filed on May 7, 2021 (File No.

Koppers Holdings Inc.

Director Deferred Compensation Plan (Incorporated by reference to Exhibit 99.1 to our Registration Statement on Form S-8 filed on August 6, 2021 (File No.

333-258537)).

13 unchanged sentences

(R EGISTRANT )

August 6, 2021

/s/ M ICHAEL J.

2 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.