Exhibit 10.9

"CERTAIN PROVISIONS OF TffiS EXHIBIT HAVE BEEN OMITTED AND ARE MARKED WITH ASTERICKS (** * *). THE OMITTED PORTIONS EXHIBIT 10.9 HAVE BEEN OMITTED BECAUSE THEY ARE BOTH (i) NOT MATERIALAND (ii) WOULD BE COMPETITIVELY HARMFUL IF PUBLICLY DISCLOSED." fl VENDOR NAME CONTACT NAME ADDRESS TECHNICAL COMMUNICATIONS CORPORATION Fidel Camero 100 DOMINO DR CONCORD, MA 01742 - 2817 UNITED STATES PHONE FAX E - MAIL OUR PURPOSE. YOUR MISSION. 621 LYNNHAVEN PKWY, STE 160 VIRGINIA BEACH, VA 23452 - 7448 TOLL FREE: (****) FAX:(****) CAGE: (****) DUNS: (****) FEDERAL TAX ID:(****) http : //www . adsinc . com (978) 287 - 6303 fcamero@tccsecure.com PURCHASE ORDER 1025245 DATE: 05/13/2019 REVISION: Number : 1 I Date : 05/20/2019 SALESREP: ( xic.ri,) BUYER: (****) PHONE: (* * **) FAX: (t. >}',) EMAIL: ()'.M•.r) SHIP TO NAME - CONTACT NAME ADDRESS SHIPPING REF# CUSTOMER REF# SHIPMENT PRIORITY SPAWAR (SYSTEMS CENTER ATLANTIC - SSCLANT) (*** * ) TRAINING AT TECHNICAL COMMUNICATIONS CORP 100 DOMINO DR CONCORD, MA 01742 us FMS CASE NUMBER (****) (****) (****) SHIPPING CARRIER SHIPPING METHOD PAYMENT TERMS FOB Origin FOB Origin PREPAY AT SHIP LINE PART NUMBER PART DESCRIPTION QUANTITY UOM UNIT PRICE TOTAL(USD) SHIP BY DATE 1 TRAINING DSP9000RB CUST REQ•N6523691290000 TCC 10 - DAY 10 - STUDENTS TRAINING CLASS [RATED - DOC9] CLIN: 0015 (****) Each (****) (****) 2 TRAINING DSP9000 BASE CUST REQ - N6523691290000 TCC 5 - DAY 10 - STUDENTS TRAINING CLASS [RATED - DOC9] CLIN : 0016 (****) Each (****) (****) 3 TRAINING DSP HND CUST REQ - N6523691290000 TCC 5 - DAY 10 - STUDENTS TRAINING CLASS [RATED - DOC9] CLIN: 0017 (****) Each (****) (****) Other Comments or Special Instructions TERMS : (****) ( TOTAL $113,1ss.oo I I I Ship By Date Instructions , ... . ) Compliance Statements for Shipment of Controlled Items JIAB.: N/A EAR : These items are controlled by the U . S . Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end - user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end - user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U . S . government or as otherwise authorized by U . S . law and regulations . FCC : N/A EXPIRED ITEMS : NIA .c. T h i s document is conside r ed co n fidentia l and propr i etary property of ADS , I nc . and is p r ovided on the express condition that the data contained in i t are not to be u sed , disclosed , or reproduced i n whole o r i n part for any purpose without the express w ritt en consent of ADS , I nc . Page 1 of 3 The terms and conditions found at(****) are hereby Incorporated In this Purchase Order by reference . PROD The flowdown clauses found at (****) are hereby Incorporated In this Purchase Order by reference .

This document is considered confidential and proprietary property of ADS, Inc. and is provided on the express condition that the data contained in it are not to be used, disclosed, or reproduced in whole or in part for any purpose without the express written consent of ADS, Inc. Page 2 of 3 The terms and conditions found at (****) are hereby incorporated in this Purchase Order by reference. The flowdown clauses found at (****) are hereby incorporated in this Purchase Order by reference. PROD RATED: CERTIFIED FOR NATIONAL DEFENSE USE. YOU ARE REQUIRED TO FOLLOW ALL THE PROVISIONS OF THE DEFENSE PRIORITIES AND ALLOCATIONS SYSTEM REGULATION (15 CFR PART 700). RATED ORDERS TAKE PRECEDENCE OVER ALL OTHER NON - RATED DOD ORDERS AND ALL COMMERCIAL ORDERS YOU MAY HAVE. IF THE ORDER LINE CONTAINS SPECIFICATIONS, QUALITY CONTROL, MIL STANDARDS OR OTHER CONTRACTUAL REQUIREMENTS (DESIGNATED AS "QS" - QUALITY STATEMENT, "COC" - CERTIFICATE OF COMPLIANCE, "RATED") PLEASE VISIT THE FOLLOWING LINK http://adsinc.com/purchasing - documents FOR APPLICABLE DOCUMENTATION. Additional Instructions/Attachments