Company: CENX
Filing Date: 2025-03-03
Form Type: 10-K
Source: 0000949157-25-000024
Chunk: 140

Company: CENTURY ALUMINUM CO
Filing Date: 2025-03-03
Form: 10-K
Item: Item 8
Chunk 140
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8 Machinery and equipment1,664.0 1,580.7 Asset Retirement Obligation35.3 21.8 Construction in progress44.7 160.3  2,287.3 2,232.5 Less accumulated depreciation, amortization and depletion(1,309.0)(1,228.3)Property, plant and equipment - net$978.3 $1,004.2 For the years ended December 31, 2024, 2023 and 2022, we recorded depreciation, amortization and depletion expense of $81.8 million, $74.7 million, and $73.4 million, respectively.

12.  Accumulated Other Comprehensive Loss ("AOCL")

Components of AOCL20242023Defined benefit plan liabilities$(107.0)$(101.8)Unrealized gain on financial instruments1.4 1.6 Other comprehensive loss before income tax effect(105.6)(100.2)Income tax effect(1)2.3 2.3 Accumulated other comprehensive loss$(103.3)$(97.9)(1)The allocation of the income tax effect to the components of other comprehensive loss is as follows:20242023Defined benefit plan liabilities$2.6 $2.6 Unrealized loss on financial instruments(0.3)(0.3)

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CENTURY ALUMINUM COMPANYNOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS(amounts in millions, except share and per share amounts)

The following table summarizes the changes in the accumulated balances for each component of AOCL:Defined benefit plan and other postretirement liabilitiesUnrealized gain (loss) on financial instrumentsTotal, net of taxBalance, December 31, 2021$(84.0)$1.7 $(82.3)Other comprehensive income (loss) before reclassifications(5.9)— (5.9)Net amount reclassified to net income (loss)(5.7)(0.1)(5.8)Balance, December 31, 2022(95.6)1.6 (94.0)Other comprehensive income (loss) before reclassifications(10.1)— (10.1)Net amount reclassified to net income (loss)6.3 (0.1)6.2 Balance, December 31, 2023(99