Cooper-Standard Holdings Inc.

Additional InformationThe SEC has adopted rules that permit companies and intermediaries such as brokers to satisfy delivery requirements for proxy statements and annual reports with respect to two or more stockholders sharing the same address by delivering a single proxy statement and annual report addressed to those stockholders. This process, which is commonly referred to as “householding,” potentially provides extra convenience for stockholders and cost savings for companies. The Company and some brokers household proxy materials, delivering a single proxy statement and annual report to multiple stockholders sharing an address unless contrary instructions have been received from the affected stockholders. Once you have received notice from your broker or the Company that your broker or the Company will be householding materials to your address, householding will continue until you are notified otherwise or until you revoke your consent. If, at any time, you no longer wish to participate in householding and would prefer to receive a separate proxy statement and annual report, please notify your broker if your shares are held in a brokerage account or the Company if you hold registered shares. You can notify the Company by phone at (248) 596-5900 or by sending a written request to the Company at 40300 Traditions Drive, Northville, Michigan, 48168, Attention: Secretary. If your household has received multiple copies of proxy statements and annual reports, you can request the delivery of single copies in the future by notifying the Company as listed above.