| 1 | DBM SERVICIOS, S.A. de C.V. | ||||
| 2 | DURA-BASE DE MEXICO S.A. DE C.V. | ||||
| 3 | DURA-BASE NEVADA, INC. | ||||
| 4 | GRASSFORM PLANT HIRE LIMITED | ||||
| 5 | NEWPARK CHILE LIMITADA | ||||
| 6 | NPK BRASIL LTDA | ||||
| 7 | NPK TEXAS LLC | ||||
| 8 | NPK ACCESS SOLUTIONS LLC | ||||
| 9 | NPK ACCESS SOLUTIONS (UK) LLC | ||||
| 10 | NPK ENVIRONMENTAL WATER SOLUTIONS LLC | ||||
| 11 | NPK HOLDINGS LLC | ||||
| 12 | NPK INTERNATIONAL REAL ESTATE HOLDING LLC | ||||
| 13 | NPK LATIN AMERICA HOLDING LLC | ||||
| 14 | NPK MINERAL GRINDING LLC | ||||
| 15 | NPK PERSONNEL SERVICES LLC | ||||