UNDERGROUND DEVICES, INC. CASH BALANCE PLAN

Benefits under the plan are primarily determined with reference to a participant's pay (e.g. final-average-pay formula).

A cash balance formula in a defined benefit plan that expresses the accrued benefit in terms more common to a defined contribution plan such as a hypothetical account balance or single sum amount (includes personal account plan pension equity plan life cycle plan and cash account plan).

A master prototype or volume submitter plan that is the subject of a favorable opinion or advisory letter from the IRS.