Attached files

file filename
EX-99.1 - EXHIBIT 99.1 - U.S. SILICA HOLDINGS, INC.slca-191231xexhibit991.htm
EX-95.1 - EXHIBIT 95.1 - U.S. SILICA HOLDINGS, INC.slca-191231xexhibit951.htm
EX-32.2 - EXHIBIT 32.2 - U.S. SILICA HOLDINGS, INC.slca-191231xexhibit322.htm
EX-32.1 - EXHIBIT 32.1 - U.S. SILICA HOLDINGS, INC.slca-191231xexhibit321.htm
EX-31.2 - EXHIBIT 31.2 - U.S. SILICA HOLDINGS, INC.slca-191231xexhibit312.htm
EX-31.1 - EXHIBIT 31.1 - U.S. SILICA HOLDINGS, INC.slca-191231xexhibit311.htm
EX-23.1 - EXHIBIT 23.1 - U.S. SILICA HOLDINGS, INC.slca-191231xexhibit231.htm
EX-10.26 - EXHIBIT 10.26 - U.S. SILICA HOLDINGS, INC.slca-191231xexhibit1026.htm
EX-4.2 - EXHIBIT 4.2 - U.S. SILICA HOLDINGS, INC.slca-191231xexhibit42.htm
10-K - 10-K - U.S. SILICA HOLDINGS, INC.slca-20191231x10xk.htm
Exhibit 21.1

 
 
 
Name

Jurisdiction of Formation
Hourglass Acquisition I, LLC
Delaware
Preferred Rocks USS Inc.
Delaware
Hourglass Holdings, LLC
Delaware
USS Holdings, Inc.
Delaware
U.S. Silica Company
Delaware
Pennsylvania Glass Sand Corporation
Delaware
The Fulton Land and Timber Company
Pennsylvania
Ottawa Silica Company
Delaware
Ottawa Silica Company, Ltd.
Quebec, Canada
Coated Sand Solutions, LLC
Delaware
Cadre Services Inc.
Delaware
Cadre Material Products, LLC
Texas
Fairchild Silica, LLC
Delaware
Utica Silica, LLC
Delaware
Tyler Silica Company
Delaware
New Birmingham Resources, LLC
Texas
NBR Sand, LLC
Texas
NBR Maritime I, LLC
Texas
NBR Maritime II, LLC
Texas
Sandbox Enterprises, LLC
Texas
Oren Technologies, LLC
Texas
Sandbox Leasing, LLC
Texas
Sandbox Logistics, LLC
Texas
Sandbox Transportation, LLC
Texas
Mississippi Sand, LLC
Missouri
Arcadia Sand, LLC
Delaware
Boss Energy Resources, LLC
Delaware
Seagraves Development, LLC
Delaware
EP Minerals Holdings, Inc.
Delaware
EP Acquisition, LLC
Delaware
EP Management Corporation
Delaware
EP Minerals, LLC
Delaware
2473428 Ontario, Inc.
Ontario, Canada
EP Engineered Clays Corporation
Delaware
EP Minerals International S.A.S.
France
EP Minerals Europe Verwaltungs und Beteiligungs GmbH
Germany
EP Minerals Europe GmbH & Co. KG
Germany
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, LLC
Delaware