0001104659-13-052137 Sample Contracts

Joint Filing Agreement

Joint Filing Agreement • June 28th, 2013 • NRC Us Holding Company, LLC • Hazardous waste management

• Contract Type
  Joint Filing Agreement
• Filed
  June 28th, 2013
• Company
  NRC Us Holding Company, LLC
• Industry
  Hazardous waste management

This will confirm the agreement by and among the undersigned that the Statement on Schedule 13D (the “Statement”) filed on or about this date with respect to the beneficial ownership by the undersigned of shares of common stock, par value $0.01 per share, of OP-TECH Environmental Services, Inc., a Delaware corporation, is being filed on behalf of the undersigned.