See All of This Company's Exhibits Find More Exhibits Like This

EX-21.1 2 slca-20221231xexhibit211.htm EX-21.1 U.S. SILICA HOLDINGS, INC - List of subsidiaries of U.S. Silica Holdings, Inc.

Exhibit 21.1
Name
Jurisdiction of Formation
Hourglass Acquisition I, LLCDelaware
Preferred Rocks USS Inc.Delaware
Hourglass Holdings, LLCDelaware
USS Holdings, Inc.Delaware
U.S. Silica CompanyDelaware
Pennsylvania Glass Sand CorporationDelaware
The Fulton Land and Timber CompanyPennsylvania
Ottawa Silica CompanyDelaware
Ottawa Silica Company, Ltd.Quebec, Canada
Coated Sand Solutions, LLCDelaware
Cadre Services Inc.Delaware
Cadre Material Products, LLCTexas
Fairchild Silica, LLCDelaware
Utica Silica, LLCDelaware
Tyler Silica CompanyDelaware
New Birmingham Resources, LLCTexas
NBR Sand, LLCTexas
NBR Maritime I, LLCTexas
NBR Maritime II, LLCTexas
Sandbox Enterprises, LLCTexas
Oren Technologies, LLCTexas
Sandbox Leasing, LLCTexas
Sandbox Logistics, LLCTexas
Sandbox Transportation, LLCTexas
Mississippi Sand, LLCMissouri
Arcadia Sand, LLCDelaware
Boss Energy Resources, LLCDelaware
Seagraves Development, LLCDelaware
EP Minerals Holdings, Inc.Delaware
EP Acquisition, LLCDelaware
EP Management CorporationDelaware
EP Minerals, LLCDelaware
EP Engineered Clays CorporationDelaware
EP Minerals International S.A.S.France
EP Minerals Europe Verwaltungs und Beteiligungs GmbHGermany
EP Minerals Europe GmbH & Co. KGGermany
EP Mexican Parent, Inc.Delaware
EP Minerals de Mexico S. de R.L. de C.V.Mexico
Celatom de Mexico S. de R.L. de C.V.Mexico
Kermit Pipeline, LLC (50% ownership)Texas
Spruce Acquisition, LLCDelaware