1) AMEREN

2) AMERICAN CEMENT ASSOCIATION (FORMERLY PORTLAND CEMENT ASSOCIATION)

3) AQUESTIVE THERAPEUTICS

4) AVERY DENNISON CORPORATION

5) CAMECO CORPORATION

6) CEMENT KILN RECYCLING COALITION

7) DUKE ENERGY CORPORATION

8) ELECTRICITY CANADA

9) ENERGY FORWARD

10) GEOTHERMAL EXCHANGE ORGANIZATION (GEO)

11) GEVO, INC.

12) GLOBAL LASER ENRICHMENT LLC

13) HEIDELBERG MATERIALS

14) MARITIME INNOVATION COALITION

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

16) REPSOL SERVICES COMPANY

17) SALT RIVER PROJECT

18) SOUTHERN COMPANY

19) SUNGAS RENEWABLES INC

20) THE METHANOL INSTITUE

21) VALERO ENERGY CORP

22) VISTRA ENERGY (FKA ENERGY FUTURE HOLDINGS)

1) AMERICAN CEMENT ASSOCIATION (FORMERLY PORTLAND CEMENT ASSOCIATION)

2) ASSOCIATION OF PLASTIC RECYCLERS

3) CAPITAL POWER OPERATIONS (USA) INC.(FORMERLY KNOWN AS CAPITAL POWER CORPORATION)

4) DT MIDSTREAM, INC.

5) DUKE ENERGY CORPORATION

6) ELECTRICITY CANADA

7) GEVO, INC.

8) HEIDELBERG MATERIALS

9) MARITIME INNOVATION COALITION

10) NATIONAL AUTOMOBILE DEALERS ASSOCIATION

11) REPSOL SERVICES COMPANY

12) SUNGAS RENEWABLES INC

13) THAI UNION GROUP PCL

14) THE COALITION FOR RENEWABLE NATURAL GAS

15) THE TREVOR PROJECT

16) VISTRA ENERGY (FKA ENERGY FUTURE HOLDINGS)