EXHIBIT F

EXHIBIT F TO AIRCRAFT PURCHASE AGREEMENT BY AND BETWEEN HYPERION AIR, LLC AND INDUSTRIAL INTEGRITY SOLUTIONS, LLC DELIVERY RECEIPT 2008 KEYSTONE (SIKORSKY) S-76C++ HELICOPTER Manufacturer's Serial No. 760750 U.S. Registration No. N722.TF: (See Attached) 24 EFTA00080010 DELIVERY RECEIPT 2008 KEYSTONE (SIKORSKY) S-76C++ HELICOPTER Manufacturer's Serial No. 760750 U.S. Registration No. N722JE Pursuant to provisions of that certain Aircraft Purchase Agreement dated April , 2021 (the "Agreement") by and between HYPERION AIR, LLC, a U.S. Virgin Islands limited liability company ("Seller"), and INDUSTRIAL INTEGRITY SOLUTIONS, LLC, a New Mexico limited liability company ("Purchaser"), Purchaser hereby acknowledges the delivery and acceptance of one used 2008 Keystone (Sikorsky) model S-76C++ helicopter, bearing manufacturer's serial number 760750, and currently registered with the United States Federal Aviation Administration (the "FAA") as N722JE, together with said airc