Change of Address

Note: If you hold Dow Stock, you need to notify your stockbroker or Computershare, Dow's stock transfer agent, of your address change to ensure delivery of dividends and other Dow stockholder information.

Address written stockholder inquiries to:

Computershare
P.O. Box 505000
Louisville, KY 40233

If sending written stockholder inquiries by overnight mail:

Computershare
462 South 4th Street, Suite 1600
Louisville, KY 40202

Please include your name, address, daytime telephone number, account number, and company name (The Dow Chemical Company) on all correspondence.

By Telephone:

1-800-369-5606 (U.S. and Canada)
1-201-680-6685 (Outside U.S. and Canada)
1-800-231-5469 (Hearing Impaired – TTY Phone)

Website: www.computershare.com/investor