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On the Record · Quanex Building Products

Quanex Building Products subsidiaries, as it lists them

The subsidiaries Quanex Building Products lists in its latest annual report, with the jurisdiction of each, linked to the filing.

Subsidiaries it lists

SubsidiaryJurisdiction
Amesbury Acquisition Holdings (2) Inc.Delaware
Amesbury Group Inc.Delaware
Amesbury Industries Inc.Delaware
Amesbury Mexico S de RL de CVMexico
Amesburytruth Inc.Canada
Ashland Hardware And Casting Systems De Mexico, S. de R.L. de C.V.Mexico
Ashland Hardware Holdings, Inc.Delaware
Ashland Hardware, LLCDelaware
Avantek Machinery Ltd.United Kingdom and Wales
Balance Systems Inc.South Dakota
Barry G Lawrence Inc.North Carolina
Bilco Holdco LimitedUnited Kingdom and Wales
Bilco Trading LtdUnited Kingdom and Wales
Bilcomex Commercializadora S de RL de CVMexico
Bilcomex S de RL de CVMexico
Edgetech (UK) LTD.United Kingdom and Wales
Edgetech Europe GmbHGermany
ERA Home Security LimitedUnited Kingdom and Wales
Flamstead Holdings LimitedUnited Kingdom and Wales
Giesse Group Argentina SAArgentina
Giesse Group Hellas S.A.Greece
Giesse Group Iberia S.A.Spain
Giesse S.p.A.Italy
HL Plastics Ltd.United Kingdom and Wales
Liniar Ltd.United Kingdom and Wales
Mikron Industries, Inc.Washington
Mikron Washington LLCWashington
Quanex Access Solution LimitedUnited Kingdom and Wales
Quanex Custom Components, Inc.Minnesota
Quanex Custom Mixing LLCDelaware
Quanex Do Brasil LTDABrazil
Quanex Homeshield LLCDelaware
Quanex IG Systems, Inc.Ohio
Quanex North American Cabinet Components, Inc.Delaware
Quanex North American Fenestration, Inc.Ohio
Schlegel Acquisition Holdings LimitedUnited Kingdom and Wales
Schlegel LimitedUnited Kingdom and Wales
Schlegel PTY LimitedAustralia
Schlegel Giesse Middle East Building Materials Trading LLCUAE - Dubai
The Bilco CompanyConnecticut
The Bilco Holding CompanyConnecticut
Truth Hardware CorporationDelaware
TSA (Ningbo) Hardware co., LimitedChina

From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.

Read from Quanex Building Products’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2025-12-12. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.