As of September 30, 2026

As of December 31, 2025

Receivables, Net

Accounts receivable

$

532.2

$

423.9

Allowance for doubtful receivables

(0.6

)

(0.6

)

Receivables, net

$

531.6

$

423.3

Inventories

Finished products

$

129.2

$

156.1

Work-in-process

395.5

316.7

Raw materials

306.4

236.2

Operating supplies

16.8

16.2

Inventories

$

847.9

$

725.2

Property, Plant and Equipment, Net

Land and improvements

$

46.3

$

38.2

Buildings and leasehold improvements

309.2

302.6

Machinery and equipment

1,626.1

1,586.7

Construction in progress

88.2

66.7

Property, plant and equipment, gross

2,069.8

1,994.2

Accumulated depreciation and amortization

(929.4

)

(849.1

)

Land held for sale

—

0.1

Property, plant and equipment, net

$

1,140.4

$

1,145.2

Other Assets

Restricted cash – Note 11

$

19.6

$

19.9

Long-term replacement parts

36.3

28.5

Net assets of Salaried VEBA

10.2

9.7

Other

18.7

17.6

Other assets

$

84.8

$

75.7

.

Other Accrued Liabilities

Uncleared cash disbursements

$

56.2

$

45.8

Accrued income taxes and other taxes payable

10.4

7.8

Accrued annual contribution to Salaried VEBA

—

2.9

Accrued interest

10.8

6.9

Current operating lease liabilities

5.4

4.8

Current finance lease liabilities

3.2

2.3

Other – Note 4

37.7

20.8

Other accrued liabilities

$

123.7

$

91.3

Long-Term Liabilities

Workers' compensation accrual

$

24.5

$

26.0

Long-term environmental accrual – Note 6

17.2

17.4

Other long-term liabilities

41.2

38.0

Long-term liabilities

$

82.9

$

81.4