Commitments and Contingencies	9 Months Ended
Jun. 30, 2026
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies In the normal course of business, the Company may be involved in ordinary, routine legal actions. The Company cannot reasonably estimate future costs, if any, related to these matters; however, it does not anticipate any material impact on its financial condition or results of operations from these matters. The Company maintains various liability insurance coverages to protect its assets from losses arising out of or involving activities associated with ongoing and normal business operations; however, it is possible that the Company’s future operating results could be affected by future costs of litigation. The Company may be subject to late shipping charges under certain customer arrangements if delivery timelines are not met. As of June 30, 2026, the Company has not accrued any amounts related to such potential charges, as the likelihood of incurring material penalties is not considered probable. The Company will continue to monitor this matter and will record an accrual if and when it becomes probable that a liability has been incurred and the amount can be reasonably estimated. Environmental Compliance Matter - Orange, California Facility On October 3, 2025, the Company received written notice of potential violations of the Clean Water Act and California’s General Industrial Storm Water Permit occurring at Quality Aluminum Forge, LLC’s facilities located at 820 North Cypress Street & 794 North Cypress Street, Orange, California 92867. The Company received written Notice of Violations and Intent to File Suit Under the Federal Water Pollution Control Act, dated December 23, 2025, regarding potential violations of the Clean Water Act and California’s General Industrial Storm Water Permit occurring at Quality Aluminum Forge, LLC’s facilities located at 820 North Cypress Street & 794 North Cypress Street, Orange, California 92867. The foregoing notices resulted in a lawsuit filed on February 23, 2026, in the United States District Court, Central District of California, captioned: Orange County Coastkeeper v. Quality Aluminum Forge, LLC, SIFCO Industries, Inc. and Private Investments, LLC. The Company has not yet been officially served with this suit and is engaged in efforts described below to resolve this matter. The suit makes claims that generally repeats the claims from the December 23, 2025 notice described above and requests injunctive relief, storm water compliance actions, and plaintiffs’ costs. The Company is evaluating the notices and the related lawsuit, validating the violations alleged therein, and, to the extent applicable, determining the extent of remediation efforts that may be required in connection therewith. The Company has engaged an environmental consultant to assist with potential remediation requirements, as well as estimating potential fines, penalties and legal costs. While the Company records reserves for legal disputes and regulatory matters in accordance to U.S. GAAP, the ultimate resolution of such matters are inherently uncertain, and actual results may differ significantly from current estimates. During the quarter ended June 30, 2026, the Company settled one of the notices for $65. Based on the information currently available the Company has recorded an accrual of $175 for its estimated remaining contingent liabilities, which is included within accrued liabilities as of June 30, 2026. The Company recognized expense of $20 and $412 related to these matters during the three months and nine months ended June 30, 2026.

Commitments and Contingencies

9 Months Ended

Jun. 30, 2026

Commitments and Contingencies Disclosure [Abstract]

In the normal course of business, the Company may be involved in ordinary, routine legal actions. The Company cannot reasonably estimate future costs, if any, related to these matters; however, it does not anticipate any material impact on its financial condition or results of operations from these matters. The Company maintains various liability insurance coverages to protect its assets from losses arising out of or involving activities associated with ongoing and normal business operations; however, it is possible that the Company’s future operating results could be affected by future costs of litigation.

The Company may be subject to late shipping charges under certain customer arrangements if delivery timelines are not met. As of June 30, 2026, the Company has not accrued any amounts related to such potential charges, as the likelihood of incurring material penalties is not considered probable. The Company will continue to monitor this matter and will record an accrual if and when it becomes probable that a liability has been incurred and the amount can be reasonably estimated.

Environmental Compliance Matter - Orange, California Facility

On October 3, 2025, the Company received written notice of potential violations of the Clean Water Act and California’s General Industrial Storm Water Permit occurring at Quality Aluminum Forge, LLC’s facilities located at 820 North Cypress Street & 794 North Cypress Street, Orange, California 92867. The Company received written Notice of Violations and Intent to File Suit Under the Federal Water Pollution Control Act, dated December 23, 2025, regarding potential violations of the Clean Water Act and California’s General Industrial Storm Water Permit occurring at Quality Aluminum Forge, LLC’s facilities located at 820 North Cypress Street & 794 North Cypress Street, Orange, California 92867. The foregoing notices resulted in a lawsuit filed on February 23, 2026, in the United States District Court, Central District of California, captioned: Orange County Coastkeeper v. Quality Aluminum Forge, LLC, SIFCO Industries, Inc. and Private Investments, LLC. The Company has not yet been officially served with this suit and is engaged in efforts described below to resolve this matter. The suit makes claims that

generally repeats the claims from the December 23, 2025 notice described above and requests injunctive relief, storm water compliance actions, and plaintiffs’ costs.

The Company is evaluating the notices and the related lawsuit, validating the violations alleged therein, and, to the extent applicable, determining the extent of remediation efforts that may be required in connection therewith. The Company has engaged an environmental consultant to assist with potential remediation requirements, as well as estimating potential fines, penalties and legal costs. While the Company records reserves for legal disputes and regulatory matters in accordance to U.S. GAAP, the ultimate resolution of such matters are inherently uncertain, and actual results may differ significantly from current estimates. During the quarter ended June 30, 2026, the Company settled one of the notices for $65. Based on the information currently available the Company has recorded an accrual of $175 for its estimated remaining contingent liabilities, which is included within accrued liabilities as of June 30, 2026. The Company recognized expense of $20 and $412 related to these matters during the three months and nine months ended June 30, 2026.