Condensed Consolidated Balance Sheet - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Assets
Cash and cash equivalents	$ 38.4	$ 43.9
Accounts receivable, net of allowance of $7.0 and $6.9	211.7	191.8
Inventories, net	405.4	404.6
Derivative contracts	8.2	1.5
Other current assets	44.3	38.8
Total current assets	708.0	680.6
Property, plant and equipment, net of accumulated depreciation of $458.2 and $494.4	654.5	660.8
Goodwill	319.0	317.1
Intangible assets, net	111.5	119.0
Operating lease right-of-use assets	101.3	89.8
Deferred tax assets	8.4	8.4
Other assets	28.1	14.5
Total assets	1,930.8	1,890.2
Liabilities
Accounts payable	168.7	179.1
Accrued liabilities	72.0	115.1
Current operating lease liabilities	26.7	26.7
Current maturities of long-term debt	4.9	4.9
Total current liabilities	272.3	325.8
Long-term debt	962.9	925.9
Operating lease liabilities	75.0	64.4
Accrued postretirement benefits	13.1	14.9
Deferred tax liabilities	36.2	25.9
Other long-term liabilities	44.2	44.3
Total liabilities	1,403.7	1,401.2
Commitments and contingent liabilities (Note 12)
Equity
Senior Convertible Preferred Stock, $0.01 par value per share; 10,000,000 shares authorized; no shares issued	0.0	0.0
Common Stock, $0.01 par value per share; 80,000,000 shares authorized; 26,158,485 and 25,761,084 shares issued	0.3	0.3
Additional paid-in capital	326.1	317.2
Retained earnings	489.3	490.3
Accumulated other comprehensive loss	(61.2)	(120.6)
Treasury stock, at cost, 6,445,702 and 5,480,230 shares	(227.7)	(198.5)
Total Koppers shareholders’ equity	526.8	488.7
Noncontrolling interests	0.3	0.3
Total equity	527.1	489.0
Total liabilities and equity	$ 1,930.8	$ 1,890.2