EDGAR Filing Documents for 0001073429-19-000032

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:

SEC Accession No. 0001073429-19-000032

Filing Date

2019-02-27

Accepted

2019-02-26 18:55:24

Documents

143

Period of Report

2018-12-31

Document Format Files

Seq	Description	Document	Type	Size
1	10-K 2018	a123118-10k.htm	10-K	3515194
2	EXHIBIT 21.1 SUBSIDIARIES	exhibit211subsidiarylist4q.htm	EX-21.1	57588
3	EXHIBIT 23.1 ERNST & YOUNG CONSENT	exhibit231eyconsent4q18.htm	EX-23.1	3877
4	EXHIBIT 23.2 GRANT THORNTON CONSENT	exhibit232gtconsent4q18.htm	EX-23.2	3111
5	EXHIBIT 31.1 10-K 4Q18	exhibit31110k4q18.htm	EX-31.1	12659
6	EXHIBIT 31.2 10-K 4Q18	exhibit31210k4q18.htm	EX-31.2	12842
7	EXHIBIT 32.1 10-K 4Q18	exhibit32110k4q18.htm	EX-32.1	8067
8	EXHIBIT 32.2 10K 4Q18	exhibit32210k4q18.htm	EX-32.2	7793
9	EXHIBIT 95.1 4Q18	exhibit951miningdisclosure.htm	EX-95.1	71050
16		chart-9ba839ee8f8d582bb57.jpg	GRAPHIC	55309
17		logo1a07.jpg	GRAPHIC	9408
	Complete submission text file	0001073429-19-000032.txt		19631584

Data Files

Seq	Description	Document	Type	Size
10	XBRL INSTANCE DOCUMENT	uscr-20181231.xml	EX-101.INS	5302207
11	XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT	uscr-20181231.xsd	EX-101.SCH	97989
12	XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT	uscr-20181231_cal.xml	EX-101.CAL	189677
13	XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT	uscr-20181231_def.xml	EX-101.DEF	579252
14	XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT	uscr-20181231_lab.xml	EX-101.LAB	1284878
15	XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT	uscr-20181231_pre.xml	EX-101.PRE	860689

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