HANOVER INSURANCE GROUP, INC.

Discontinued Operations, for information on the processes and risks associated with reserves established for these businesses. Our long-term care pool accounts for the majority of our remaining accident and health reinsurance pool reserves. The potential risk and exposure of our long-term care pool is based upon expected estimated claims and payment patterns, using assumptions for, among other things, morbidity, lapses, future premium rates, the impact of policy inflation protection riders, and the interest rate used for discounting the future projected cash flows. The long-term exposure of this pool depends upon how our actual experience compares with these future cash flow projection assumptions. If any of our assumptions prove to be inaccurate, our reserves may be inadequate, which may have a material adverse effect on our results of operations. Based on the information provided by the pool managers, we believe that the recorded reserves related to this business are appropriate. However, due to the inherent volatility in this business and the reporting lag of losses that tend to develop over time and which ultimately affect excess covers, as well as uncertainty surrounding both future claim expenses and with future premium rate levels for certain of these businesses, there can be no assurance that current reserves are adequate or that we will not have additional losses in the future.