1) AIR CONDITIONING HEATING & REFRIGERATION INSTITUTE (FKA AIR CONDITIONING AND R)

2) AIR LIQUIDE USA LLC

3) AMEREN

4) AMERICAN CEMENT ASSOCIATION (FORMERLY PORTLAND CEMENT ASSOCIATION)

5) AVERY DENNISON CORPORATION

6) CEMENT KILN RECYCLING COALITION

7) DUKE ENERGY CORPORATION

8) ENERGY FORWARD

9) GEVO, INC.

10) GULF COAST WATER AUTHORITY

11) KINDER MORGAN, INC

12) MARITIME INNOVATION COALITION

13) METHANEX (DBA METHANEX USA LLC, METHANEX LOUISIANA LLC, METHANEX GEISMAR III LLC

14) MODINE MANUFACTURING COMPANY

15) NATIONAL AUTOMOBILE DEALERS ASSOCIATION

16) PORTABLE GENERATOR MANUFACTURERS ASSOCIATION (PGMA)

17) SALT RIVER PROJECT

18) SOUTHERN COMPANY

19) STANDARD INDUSTRIES, INC.

20) THE METHANOL INSTITUE

21) VALERO ENERGY CORP

22) VISTRA ENERGY (FKA ENERGY FUTURE HOLDINGS)