NCG020007_Letter RE Name Change_20180629

(('; CO VIA
June 28, 2018
Laura Alexander
North Carolina Department of Environmental Quality
Energy, Mineral and Land Resources - Stormwater
1612 Mail Service Center
Raleigh, NC 27699-1612
Subject: Unimin Corporation Name Change — Marston Facility
NPDES Permit Name Change — Permit #NCG020007
Dear Sir/Madam:
Please accept this correspondence as formal notice that, effective June 1, 2018, Unimin
Corporation changed its name from "UNIMIN CORPORATION" to "COVIA HOLDINGS
CORPORATION". This name change is administrative and does not reflect a change in control
or EIN.
We respectfully request an update to the referenced permit/registration(s) to reflect this
administrative change. Supplemental information is attached hereto, as required.
Should you have any questions or require additional information, please contact Kris Benusa
([e-mail]) or [phone].
Sincerely,
COVIA HOLDINGS CORPORATION
Douglas S. Losee
V.P. Environmental
Enclosures:
NPDES Permit Name/Ownership Request
eCopies to:
Matt Wilkins — Marston
Covia Corporation 1 121 St. Andrews Court I Mankato, MN 56001 1 P: 507.386.2111 IF: 507.386.2110 1 www.CoviaCorp.com