Shareholder Information

Transfer Agent & Registrar

Computershare

P.O. Box 43078
Providence, RI 02940

800.622.6757
www.computershare.com/investor

Shareholder Inquiries

Information related to share certificates should be directed to the transfer agent. For other inquiries, contact:


Investor Relations

TransDigm Group Incorporated

US Bank Centre
1350 Euclid Avenue
Suite 1600
Cleveland, OH 44115

216.706.2945
ir@transdigm.com

Independent Auditors

Ernst & Young LLP

North Point Tower II
1001 Lakeside Avenue East
Suite 1800
Cleveland, OH 44114

216.861.5000
www.EY.com