Performance Criterion Clause Samples

Performance Criterion. During the Performance Period, the RSUs subject to this Agreement will performance vest based on the “60-Day VWAP” (as defined below) as follows: • 15% of the Base RSUs will performance-vest if the 60-Day VWAP is above $[●]; • an additional 25% of the Base RSUs will performance-vest if the 60-Day VWAP is above $[●] (for an aggregate of 40% of the Target Number of RSUs); • an additional 50% of the Base RSUs will performance-vest if the 60-Day VWAP is above $[●] (for an aggregate of 90% of the Target Number of RSUs); • the remaining 10% of the Base RSUs granted will performance-vest if the 60-Day VWAP is above $[●] (for an aggregate of 100% of the Target Number of RSUs); • an additional 25% of the RSUs will performance-vest if the 60-Day VWAP is above $[●] (for an aggregate of 125% of the Target Number of RSUs); • an additional 25% of the RSUs will performance-vest if the 60-Day VWAP is above $[●] (for an aggregate of 150% of the Target Number of RSUs); • an additional 25% of the RSUs will performance-vest if the 60-Day VWAP is above $[●] (for an aggregate of 175% of the Target Number of RSUs); and • an additional 25% of the RSUs will performance-vest if the 60-Day VWAP is above $[●] (for an aggregate of 200% of the Target Number of RSUs).

Performance Criterion. The Performance Criterion applicable to the award is total shareholder return, or “TSR” as more fully described in your Notice of Award. In determining the actual number of Shares to be paid out pursuant to this Exhibit A on the Vesting Date, the Committee will determine the Company’s TSR over the Performance Period and compare such number against the TSRs for the companies included in the “Peer Group” defined in your Notice of Award. The performance and payout scale is set forth in your Notice of Award. Promptly after the end of the Performance Period, and in any event, within 2 ½ months after the end of the Performance Period, the Committee shall determine the Company’s performance against the Peer Group and the number of Shares to be paid out upon vesting.

Performance Criterion. The Performance Criterion shall be the Company’s Total Shareholder Return (“TSR”) versus the TSR for the S&P Small Cap 600 Index for the performance period which begins on the Date of Grant and ends on December 31, 2018 (“Benchmark”). Performance at the 50% percentile is the “Target” level at which half of the number of Performance Units shall vest and become payable. The number of the Performance Units that will vest and become payable pursuant to this Section 3 shall be determined by applying the “Percentage of Units Vesting” amount in the column below, with linear interpolation used to determine payout percentages between levels; provided that (i) no Performance Units shall vest if performance is below 25th percentile, (ii) no more than 100% of the Performance Units can vest and (iii) in the event Company TSR is negative, the percentage of Performance Units vesting shall in no event exceed 50%.

Performance Criterion. During the Performance Period, all PSUs subject to this Agreement will performance vest based on the “60-Day VWAP” (as defined below) as follows: • 25% of the Target Number of PSUs will performance-vest if the 60-Day VWAP is above $1.15; • an additional 25% of the Target Number of PSUs will performance-vest if the 60-Day VWAP is above $1.40 (for an aggregate of 50% of the Target Number of PSUs); • an additional 25% of Target Number of PSUs will performance-vest if the 60-Day VWAP is above $1.75 (for an aggregate of 75% of the Target Number of PSUs); • an additional 25% of the Target Number of PSUs granted will performance-vest if the 60-Day VWAP is above $2.00 (for an aggregate of 100% of the Target Number of PSUs);

Performance Criterion. The Performance Criterion applicable to the Performance Units shall be the same Performance Criterion established by the Company pursuant to the 2005 Omnibus Incentive Plan for its officers as part of its January 2013 compensation determinations.

Performance Criterion. The Performance Criterion applicable to the Award is total shareholder return, or “TSR” as more fully described in your Notice of Award. In determining the actual number of Shares to be paid out pursuant to this Exhibit A on the Vesting Date, the Committee shall determine the Company’s TSR over the Performance Period and compare such number against the TSRs for the companies included in the “Peer Group” defined in your Notice of Award. The performance and payout scale is set forth in your Notice of Award. As described in your Notice of Award, after the end of the Performance Period, the Committee shall determine the Company’s performance against the Peer Group and the number of Shares to be paid out upon vesting and the Company shall pay out such number of Shares in settlement of this Award. Such payment and settlement shall occur as soon as practicable following the applicable Vesting Date but in no event later than 2-1/2 months following the year in which the applicable Vesting Date occurs.

Performance Criterion. The objective of the soil washing research activities was to undertake a treatability study and test to determine the feasibility of removing radium from soil by using commercially available physical beneficiation technology. The performance criterion was targeted to produce at least 80% of the activity recovery in 20% or less of the original contaminated soil volume. It was decided to conduct the separation analysis not in terms of the final activity of the soil, but rather in terms of two parameters, namely the “activity separation efficiency,” and the “weight reduction efficiency or volume reduction factor.” The “activity,” unless otherwise mentioned, refers to the gross alpha activity (pCi/gm). The volume reduction criterion is considered to be satisfied provided the activity separation efficiency is obtained beyond the “threshold” value (80%). The “concentrate” and “tailings” mentioned herein are referred to as the radium-enriched and radium-lean fractions. The parameters were calculated as follows: Activity Separation Efficiency (%) =(Concentrate wt) (Gross alpha activity in concentrate) × 100 (Feed soil wt) (Gross alpha activity in feed soil) Weight Reduction Efficiency or Volume Reduction Factor, (%) = Tailings weight × 100

Performance Criterion. The following performance criterion shall apply to this conditional award: The Company’s cumulative total shareholder return over the period that commences on Performance Period Start Date and ends on Performance Period End Date, relative to the cumulative total shareholder return of the constituents of the S&P SmallCap 600 over the period that commences on Performance Period Start Date and ends on Performance Period End Date, calculated on a percentile ranking basis.