EX-21.1 5 a2024q410kexhibit211.htm EX-21.1

Exhibit 21.1

Subsidiaries of NPK International Inc.

December 31, 2024

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