Purchase Order Terms and Conditions

Field Subcontractor Agreement – DOMESTIC

Field Subcontractor Agreement – INTERNATIONAL

(Exhibit AF) Modifications To Field Subcontractor Agreement

Manufacturing Subcontractor Agreement – DOMESTIC

Manufacturing Subcontractor Agreement – INTERNATIONAL

(Exhibit AM) Modifications To Manufacturing Subcontractor Agreement

(Exhibit B) Request For Quote (RFQ)

(Exhibit C) Material Receiving Report

(Exhibit D) Koch Daily Field Report

(Exhibit E) Format of Subcontractors Invoice

(Exhibit F) Waiver of Lien

(Exhibit G) Affidavit