Business Context and Reporting Period
This Form 8-K Current Report was filed by Quanex Building Products Corporation on January 13, 2026. The filing discloses a change in the Company's independent registered public accounting firm for the fiscal year ending October 31, 2026.
Key Financial Metrics
This filing does not contain financial performance data such as revenue, profit, cash flow, margins, debt, or liquidity. The document focuses exclusively on corporate governance and audit firm transitions.
Material Changes
- Dismissal of Auditor: The Company dismissed Grant Thornton LLP as its independent registered public accounting firm, effective immediately on January 13, 2026.
- Appointment of New Auditor: The Company appointed KPMG LLP as its new independent registered public accounting firm for the fiscal year ending October 31, 2026, effective immediately.
- Audit Opinion History: Grant Thornton's audit reports for fiscal years ended October 31, 2025, and 2024, did not contain adverse opinions regarding the financial statements themselves. However, reports on internal control over financial reporting for both years contained an adverse opinion.
Outlook, Risks, and Contingencies
Material Weakness in Internal Controls: The filing confirms a continuing material weakness in the design and operation of controls over the preparation and review of the Company's statement of cash flows. This weakness was identified in the fourth quarter of 2024 and existed as of the fiscal years ended October 31, 2024, and October 31, 2025. The Company states this weakness continues to exist as of the date of this report.
Disagreements: The Company reported no disagreements with Grant Thornton regarding accounting principles, practices, or auditing scope during the relevant periods, other than the noted material weakness.
Consultations: The Company confirmed no prior consultations with KPMG regarding accounting principles or reportable events prior to their appointment.
Investor Verification Checklist
- Verify the status of remediation efforts for the material weakness in the statement of cash flows controls.
- Review the letter from Grant Thornton LLP (Exhibit 16.1) to confirm their agreement with the Company's disclosures.
- Monitor future filings for the transition of audit responsibilities and any impact on the 2026 fiscal year audit timeline.
- Confirm that no undisclosed disagreements or reportable events exist between the Company and the former auditor.