Name of Subsidiary

Jurisdiction of Organization

Covia Holdings Corporation

Delaware

Covia Specialty Minerals Inc.

Delaware

Covia Financing LLC

Delaware

Covia Canada Ltd.

Ontario, Canada

Covia Finance Company LLC

Delaware

Grupo Materias Primas de Mexico S. de R. L. de C. V.

Mexico

Grupo Materias Primas S. de R. L. de C. V.

Mexico

Materias Primas Monterrey S. de R. L. de C. V.

Mexico

Materias Primas Minerales de Ahuazotepec, S. de R. L. de C. V.

Mexico

Servicios Integrales Lampazos S. de R. L. de C. V.

Mexico

909273 Ontario Inc.

Ontario, Canada

Bison Merger Sub I, LLC

Delaware

FMSA Inc.

Delaware

Fairmount Santrol Inc.

Delaware

Fairmount Minerals Sales de Mexico, S. de R. L. de C. V.

Mexico

Santrol de Mexico, S. de R. L. de C. V.

Mexico

Best Sand Corporation

Ohio

Best Sand of Pennsylvania, Inc.

Ohio

Cheyenne Sand Corp.

Michigan

Construction Aggregates Corporation of Michigan, Inc.

Michigan

Standard Sand Corporation

Michigan

Specialty Sands, Inc.

Michigan

Lake Shore Sand Company (Ontario) Ltd.

Ontario, Canada

Mineral Visions Inc.

Ohio

Technisand, Inc.

Delaware

Covia Europe ApS

Denmark

Wisconsin Industrial Sand Company L.L.C.

Delaware

Wisconsin Specialty Sands, Inc.

Texas

Alpha Resins, LLC

Ohio

Technimat LLC (90%)

Ohio

Santrol (Yixing) Proppant Co. Ltd (70%)

China

Wedron Silica Company

Ohio

Wexford Sand Co.

Michigan

Fairmount Minerals, LLC

Ohio

Black Lab LLC

Ohio

Self-Suspending Proppant LLC

Delaware

Shakopee Sand LLC

Minnesota

FML Resin, LLC

Ohio

FML Sand, LLC

Ohio

West Texas Housing LLC

Delaware

FML Terminal Logistics, LLC

Ohio

Fairmount Logistics LLC

Texas

***

Percentages in parentheses indicate Covia Holdings Corporation’s ownership.