EXHIBIT 21.1

Subsidiaries of Spirit AeroSystems Holdings, Inc. - Delaware

Spirit AeroSystems, Inc. - Delaware

Spirit AeroSystems Finance, Inc. - Delaware

Subsidiaries of Spirit AeroSystems, Inc. - Delaware

Spirit AeroSystems International Holdings, Inc. - Delaware

Spirit AeroSystems Operations International, Inc. - Delaware

Spirit AeroSystems North Carolina, Inc. - North Carolina

Spirit AeroSystems Innovative Solutions, Inc. – Delaware

Fiber Materials Inc. – Delaware

Subsidiaries of Fiber Materials Inc. – Delaware

Intermat – Maine

Subsidiaries of Spirit AeroSystems International Holdings, Inc.

Spirit AeroSystems Malaysia Sdn Bhd - Malaysia

Spirit AeroSystems Singapore Pte. Ltd. - Singapore

Spirit AeroSystems Investco, LLC - Delaware

Spirit AeroSystems Canada, Ltd. - Canada

Spirit AeroSystems Taiwan Inc. – Taiwan

Spirit AeroSystems Global Investments B.V. – Netherlands

Huarui Spirit Aerospace Manufacturing Co., Ltd. – China

Xizi Spirit Aerospace Industry (Zhejiang) Ltd. - China

Subsidiaries of Spirit AeroSystems Global Investments, B.V.- Netherlands

Spirit AeroSystems Global Holdings Limited – United Kingdom

Spirit AeroSystems France SARL - France

Subsidiaries of Spirit AeroSystems Global Holdings Limited - United Kingdom

Spirit AeroSystems Belgium Holdings BVBA – Belgium

Spirit AeroSsytems (Europe) Limited – United Kingdom

Short Brothers plc – United Kingdom – Acquired 10/30/2020

Bombardier Aerospace North Africa, SAS – Morocco – Acquired 10/30/2020

Subsidiaries of Spirit AeroSystems (Europe) Limited – United Kingdom

Spirit AeroSystems (Hangzhou) Enterprise Management Consultancy Co., Ltd. – China

Spirit AeroSystems (Europe) Pension Trustees Ltd. – United Kingdom

Subsidiaries of Short Brothers plc – United Kingdom

Short Brothers CIF (Common Investment Fund) Trustee Limited - United Kingdom – Acquired 10/30/2020

N.I. Advanced Engineering Competence Centre Limited – United Kingdom – Acquired 10/30/2020

Short Brothers Limited Pension Trustee Limited – United Kingdom – Acquired 10/30/2020

Bombardier Aerospace Short Executive Benefits Trustee Limited – United Kingdom – Acquired 10/30/2020