1) AGC of Texas

2) Arcosa LWS, LLC

3) Arcosa Materials, Inc.

4) BFI Waste Services of Texas, LP

5) Caliza Development LLC

6) Colorado Materials, Ltd.

7) Commercial Metals Company

8) D1 Real Estate LLC

9) Dallas/Fort Worth International Airport

10) Ector County Generation LLC

11) Elgin 104 Holdings LLC

12) FA Victoria 1 LLC

13) First Ammonia LLC

14) Florence 160 Dev LLC

15) Florence FM 970 Ventures, LLC

16) Flying W Properties, Ltd.

17) Fox Tank Company

18) Freedom Boats USA, LLC

19) HillCo Partners, LLC

20) HTX Utility Solutions LLC

21) Hunter Industries Ltd.

22) Indorama Ventures Oxides LLC

23) Jewett Mine LLC

24) Jimmy Evans Company, LTD.

25) JTX Land Holdings LLC

26) Lion Elastomers LLC

27) Muldoon Minerals, Inc.

28) Northwest Williamson County Municipal Utility District No. 3

29) NRG Texas Power, LLC

30) PHR Holdings LLC

31) Republic EES, LLC

32) Republic Services, Inc.

33) Republic Waste Services of Texas, Ltd.

34) RGI Materials Inc.

35) Second Nature Compost LLC

36) SL Energy Power Plant I, LLC

37) Southwest Shipyards L.P.

38) Structural Metals, Inc.

39) US Ecology Texas, Inc.

40) US Ecology, Inc.

41) Weisman Equipment Company, Ltd.

42) Wharton County Generation, LLC

43) Williams Brothers Construction Co., Inc.

44) Williamson County Municipal Utility District No. 42

45) Zinc Resources LLC