Koppers Holdings Inc.
For the period ended Dec 31, 2025. Filed Feb 26, 2026.
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FY2025 · Filed Feb 26, 2026
KOP$29.33-2.1%Stored close · as of Nov 9, 2026
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Item 16. Form 10-K Summary
None.
SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS
For the years ended December 31, 2025, 2024 and 2023:
| Balance at Beginning of Year | Increase to Expense | NetWrite-offs | CurrencyTranslation | Balance at End of Year | |
|---|---|---|---|---|---|
| (Dollars in millions) | |||||
| 2025: | |||||
| Allowance for doubtful accounts | $6.9 | $0.7 | $(0.5) | $(0.1) | $7.0 |
| Deferred tax valuation allowance | $46.6 | $0.3 | $(5.0) | $0.1 | $42.0 |
| 2024: | |||||
| Allowance for doubtful accounts | $6.5 | $1.1 | $(0.6) | $(0.1) | $6.9 |
| Deferred tax valuation allowance | $43.1 | $3.8 | $0.0 | $(0.3) | $46.6 |
| 2023: | |||||
| Allowance for doubtful accounts | $3.5 | $3.2 | $(0.2) | $0.0 | $6.5 |
| Deferred tax valuation allowance | $43.8 | $0.3 | $(1.1) | $0.1 | $43.1 |
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