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Olin Corporation began in 1892 as a small blasting powder supplier in East Alton, Illinois. Following a few decades of success, along with some fruitful acquisitions, Olin has grown and expanded to encompass three business units —Olin Chlor Alkali Products & Vinyls, Olin Epoxy, and Winchester Ammunition.

Collectively, these business segments employ 7,700 professionals in more than 15 countries with customers in nearly 100 countries across the globe.

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Investor Contacts

Effective January 25, 2010, EQ Shareowner Services became Olin’s transfer agent and registrar.
Please use the following information to contact EQ Shareowner Services with any questions you may have concerning your Olin common stock. For written inquires:

EQ Shareowner Services
PO Box 64874
St.Paul, MN 55164-0874

or

EQ Shareowner Services
1110 Centre Pointe Curve, Suite 101
MAC N9173-010
Mendota Heights, MN 55120

By Phone:

(800) 468-9716

or

(651) 450-4064

Online:

www.shareowneronline.com/UserManagement/ContactUs

PO Box 64874
St. Paul, MN 55164-0874

or

EQ Shareowner Services
1110 Centre Pointe Curve, Suite 101
MAC N9173-010
Mendota Heights, MN 55120

Phone:

+1.800.468.9716

or

+1.651.450.4064

www.shareowneronline.equiniti.com