Former shareholders: If you have questions about actions resulting from the acquisition of Ohio Casualty Corporation ("OCAS") by Liberty Mutual Insurance Company ("Liberty") please call the exchange agent, Computershare, at 1-877-282-1168. For more information, you can also write to Computershare - 250 Royall Street, Canton, MA 02021.

Bondholders: For questions, contact the trustee,

U.S. Bank N.A.
175 South Third Street -- 4th Floor
Columbus, Ohio 43215

Click on the link to go the Liberty Mutual Group Investor Relations site.