1) AGGREPLEX AND ITS AFFILIATED ENTITIES

2) AMERICAN CONCRETE PIPE ASSOCIATION OF CALIFORNIA (ACPA-CA)

3) AMERICAN SOCIETY FOR THE PREVENTION OF CRUELTY TO ANIMALS

4) ASSOCIATION OF POSTCONSUMER PLASTIC RECYCLERS (APR)

5) BIODEGRADABLE PRODUCTS INSTITUTE (BPI)

6) CALAVERAS CEMENT COMPANY

7) CALIFORNIA CEMENT PROMOTION COUNCIL

8) CALIFORNIA FILM EXTRUDERS & CONVERTERS ASSOCIATION

9) CALIFORNIA LARGE ENERGY CONSUMERS ASSOCIATION

10) CALIFORNIA MOUNTAIN BIKING COALITION (CAMTB)

11) CALIFORNIA OUTDOOR RECREATION PARTNERSHIP, INC. (CORP)

12) CALIFORNIA PARK & RECREATION SOCIETY

13) CALIFORNIA PRECAST CONCRETE ASSOCIATION

14) CALIFORNIA TRAILS FOUNDATION

15) CALPORTLAND COMPANY

16) CEMEX INC.

17) CJ BIOMATERIALS, INC.

18) EVEZ CHARGING FOUNDATIONS

19) HANSON PERMANENTE CEMENT, INC.

20) LOS ANGELES, COUNTY OF

21) MITSUBISHI CEMENT COMPANY (MCC)

22) NATIONAL CEMENT COMPANY OF CALIFORNIA

23) NATUREWORKS LLC

24) NORTH LAKE TAHOE RESORT ASSOCIATION

25) NORTH TAHOE FIRE PROTECTION DISTRICT

26) NORTH TAHOE PUBLIC UTILITY DISTRICT

27) NOVAMONT NORTH AMERICA, INC.

28) PACIFIC STEEL GROUP (PSG)

29) PCI WEST

30) POTENTIAL INDUSTRIES, INC.

31) PRE-CON PRODUCTS

32) PROTECT AMERICAN RIVER CANYONS (PARC)

33) RECYCLING PARTNERSHIP, THE

34) RIO TINTO SERVICES, INC.

35) SAVE MOUNT DIABLO

36) SIERRA BUSINESS COUNCIL

37) SIERRA CONSORTIUM

38) SONOMA COUNTY REGIONAL PARKS

39) SOUTH TAHOE PUBLIC UTILITY DISTRICT

40) TAHOE CITY PUBLIC UTILITY DISTRICT

41) U.S. BORAX INC.

42) UNACEM NORTH AMERICA

43) VLS ENVIRONMENTAL SOLUTIONS