Attached files
| file | filename |
|---|---|
| 10-K - 10-K - U.S. SILICA HOLDINGS, INC. | slca-20171231x10xk.htm |
| EX-99.1 - EXHIBIT 99.1 - U.S. SILICA HOLDINGS, INC. | slca-20171231x10xkxex991.htm |
| EX-95.1 - EXHIBIT 95.1 - U.S. SILICA HOLDINGS, INC. | slca-20171231x10xkxex951.htm |
| EX-32.2 - EXHIBIT 32.2 - U.S. SILICA HOLDINGS, INC. | slca-20171231x10xkxex322.htm |
| EX-32.1 - EXHIBIT 32.1 - U.S. SILICA HOLDINGS, INC. | slca-20171231x10xkxex321.htm |
| EX-31.2 - EXHIBIT 31.2 - U.S. SILICA HOLDINGS, INC. | slca-20171231x10xkxex312.htm |
| EX-31.1 - EXHIBIT 31.1 - U.S. SILICA HOLDINGS, INC. | slca-20171231x10xkxex311.htm |
| EX-23.1 - EXHIBIT 23.1 - U.S. SILICA HOLDINGS, INC. | slca-20171231x10xkxex231.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 |
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 |