HANOVER INSURANCE GROUP, INC.

Primary business operations include insurance products and services currently provided through four reporting segments: Core Commercial, Specialty, Personal Lines and Other. Core Commercial includes commercial multiple peril, commercial automobile, workers’ compensation, and other commercial lines coverages provided to small and mid-sized businesses. Specialty includes four divisions of business: Marine and Industrial Property, Professional and Executive Lines, E&S and Alternative Markets, and Surety and Other. E&S and Alternative Markets includes coverages such as excess and surplus lines, program business (providing commercial insurance to markets with specialized coverage or risk management need related to groups of similar businesses) and specialty general liability coverage. Personal Lines includes personal automobile, homeowners and other personal coverages, such as umbrella. The Other segment includes earnings on holding company assets; holding company and other expenses, including certain costs associated with retirement benefits related to employees and agents of the Company’s former life insurance subsidiaries; and our run-off direct asbestos and environmental business, run-off voluntary assumed property and casualty pools, and run-off product liability business.

We report interest expense on debt separately from the earnings of our reporting segments. This consists primarily of interest on our senior and subordinated debentures.