1) AGC of Texas

2) AgriRock, L.L.C.

3) Arcosa Aggregates Texas, LLC

4) Arcosa LWS, LLC

5) Arcosa Materials, Inc.

6) BFI Waste Services of Texas, LP

7) Caliza Development LLC

8) Colorado Materials, Ltd.

9) Commercial Metals Company

10) D1 Real Estate LLC

11) Dallas/Fort Worth International Airport

12) Ector County Generation LLC

13) Elgin 104 Holdings LLC

14) FA Victoria 1 LLC

15) First Ammonia LLC

16) Florence 160 Dev LLC

17) Florence FM 970 Ventures, LLC

18) Flying W Properties, Ltd.

19) Fort Bend County Municipal Utility District No. 292

20) Fox Tank Company

21) Freedom Boats USA, LLC

22) Heartland Quarries LLC

23) HillCo Partners, LLC

24) HTX Utility Solutions LLC

25) Hunter Industries Ltd.

26) Indorama Ventures Oxides LLC

27) Jewett Mine LLC

28) Jimmy Evans Company Inc.

29) Jimmy Evans Company, LTD.

30) JTX Land Holdings LLC

31) Lion Elastomers LLC

32) Muldoon Minerals, Inc.

33) Northwest Williamson County Municipal Utility District No. 3

34) NRG Texas Power, LLC

35) PHR Holdings LLC

36) Pleak 54 Holdings LLC

37) Republic EES, LLC

38) Republic Services, Inc.

39) Republic Waste Services of Texas, Ltd.

40) RGI Materials Inc.

41) Second Nature Compost LLC

42) SL Energy Power Plant I, LLC

43) Southwest Shipyards L.P.

44) Structural Metals, Inc.

45) US Ecology Texas, Inc.

46) US Ecology, Inc.

47) Weisman Equipment Company, Ltd.

48) Wharton County Generation, LLC

49) Williams Brothers Construction Co., Inc.

50) Williamson County Municipal Utility District No. 42

51) Zinc Resources LLC