Company: CENX
Filing Date: 2025-11-06
Form Type: 10-Q
Source: 0001628280-25-050200
Chunk: 78

Company: CENTURY ALUMINUM CO
Filing Date: 2025-11-06
Form: 10-Q
Item: Part I, Item 1
Chunk 78
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Ongoing Remediation Efforts to Address Material Weaknesses

Our material weaknesses were not remediated as of September 30, 2025. Management is committed to maintaining a strong internal control environment. Management has begun to implement measures designed to ensure that previously identified control deficiencies contributing to the material weaknesses are remediated, such that these controls are designed, implemented, and operating effectively. The remediation actions for general information technology controls include: (i) designing and implementing controls related to deprovisioning, privileged access, and user access reviews, (ii) developing an enhanced risk assessment process to evaluate and monitor system changes and (iii) providing training associated with control design and execution.

The remediation actions for business process controls include: (i) designing and implementing controls related to account reconciliations (ii) improving the accuracy of supporting schedules underlying transactions, and (iii) timely capitalization of fixed assets. Additionally, our remediation efforts involve implementing additional controls to address the completeness and accuracy of information utilized in business process controls.

We intend to remediate the material weaknesses as soon as possible; however, the material weaknesses will not be considered remediated until the applicable controls operate for a sufficient period of time and management has concluded, through testing, that the appropriate controls are operating effectively.

Changes in Internal Control over Financial Reporting

Other than the changes associated with the material weaknesses and remediation actions noted above, there have been no changes in our internal control over financial reporting during the three months ended September 30, 2025 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II – OTHER INFORMATION