Matrix Awarded ISO Management System Certification

Jul 25, 2016 | Suppliers News

The ISO 9001:2015 Certification is the world’s most widely recognized standard for quality management systems. It helps organizations consistently meet the needs of customers and other key stakeholders in both the delivery and continuous improvement of products and services.

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Top 10 Coal Producing States & Regions

	YTD '23	YTD '22	% Change
Week Ending (10/28/23) (in Thousand Short Tons)
Wyoming	195,377	203,513	-4.0
West Virginia	73,188	69,617	5.1
Illinois	32,539	31,479	3.4
Pennsylvania	32,263	30,848	4.6
Kentucky	24,553	23,630	3.9
Montana	23,479	23,809	-1.4
Indiana	21,756	19,298	12.7
North Dakota	20,772	22,585	-8.0
Texas	11,942	14,053	-15.0
Colorado	9,848	10,778	-8.6
Appalachian Total	140,463	133,569	5.2
Interior Total	82,595	81,680	1.1
Western Total	264,108	279,746	-5.6
U.S. Total	487,166	494,995	-1.6

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