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KAISER ALUMINUM CORP

For the period ended Dec 31, 2025. Filed Feb 19, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 19, 2026

KALU$111.57+4.4%Stored close · as of Nov 9, 2026

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Contents

Goodwill and Intangible Assets

  1. Goodwill and Intangible Assets

Goodwill. We identifiedno indicators of goodwill impairment during the years ended December 31, 2025, 2024, and 2023.

The following table presents the changes in the carrying value of our goodwill (in millions of dollars):

As of December 31,
20252024
Gross carrying value1$57.7$57.7
Accumulated impairment loss1(38.9)(38.9)
Net carrying value$18.8$18.8

The gross carrying value and accumulated impairment loss excludes $25.2 million of goodwill recorded in conjunction with our acquisition of IMT.

Intangible Assets. The following table presents the gross carrying amount and accumulated amortization of our intangible assets by major intangible asset class (in millions of dollars):

GrossAmountAccumulatedAmortizationIntangibleAssets, Net
Customer relationships$68.1$(34.5)$33.6
Trade name2.4(1.7)0.7
Favorable lease contracts7.0(0.3)6.7
Total$77.5$(36.5)$41.0
Customer relationships$68.1$(30.3)$37.8
Trade name2.4(1.5)0.9
Non-compete agreement5.4(5.4)—
Favorable lease contracts7.0(0.2)6.8
Total$82.9$(37.4)$45.5

We identifiedno indicators of impairment associated with our intangible assets during the years ended December 31, 2025, 2024, and 2023.

Amortization expense relating to definite-lived intangible assets was$4.5 million,$4.5 million and$5.3 million for 2025, 2024, and 2023, respectively. The following table presents the expected amortization of intangible assets for each of the next five calendar years and thereafter as of December 31, 2025 (in millions of dollars):

2026$4.5
20274.5
20284.4
20294.1
20304.1
Thereafter19.4
Total$41.0
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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.