1) AVANTUS LLC

2) CARRIER CORPORATION

3) ECOLAB

4) GEOTHERMAL EXCHANGE ORGANIZATION

5) GLASSMAN ENTERPRISES, LLC ON BEHALF OF THE COALITION FOR GREEN CAPITAL

6) HUDSON TECHNOLOGIES

7) KARPOWERSHIP UK LIMITED

8) STRATA ENERGY, INC.

9) URANIUM PRODUCERS OF AMERICA

10) WASHINGTON GAS

11) WYOMING RARE (USA) INC. ON BEHALF OF ARE MANAGEMENT LLC