this Acknowledgment and
Reaffirmation to be duly executed and delivered by their respective duly
authorized officers as of the date first above written.
HI-CRUSH WYEVILLE LLC
HI-CRUSH CHAMBERS LLC
HI-CRUSH OPERATING LLC
HI-CRUSH RAILROAD LLC
D & I SILICA, LLC.
HI-CRUSH FINANCE CORP.
HI-CRUSH AUGUSTA ACQUISITION CO. LLC
HI-CRUSH AUGUSTA LLC
HI-CRUSH CANADA INC.
HI-CRUSH BLAIR LLC
HI-CRUSH INVESTMENTS INC.
HI-CRUSH LMS LLC
HI-CRUSH PODS LLC
Each By: /s/ Laura Fulton
Name: Laura C. Fulton
Title: Chief Financial Officer
Signature Page to Acknowledgment and Reaffirmation