execution version june 5, 2018 national energy services reunited corp. nesr holdings limited hana investments co. wll relationship agreement contents section page 1. commencement and duration 1 2. governance 2 3. lock - up 4 4. confidentiality 4 5. announcements 5 6. notices 6 7. costs and interest 6 8. whole agreement 6 9. assignment 7 10. variations 7 11. invalid terms 7 12. termination 8 13. enforceability, rights and remedies 8 14. counterparts 8 15. governing law 9 16. jurisdiction ; waiver of trial by jury 9 schedule 1 definitions and interpretation 10 section page section page 1. commencement and duration 1 1. commencement and duration 1 2. governance 2 2. governance 2 3. lock - up 4 3. lock - up 4 4. confidentiality 4 4. confidentiality 4 5. announcements 5 5. announcements 5 6. notices 6 6. notices 6 7. costs and interest 6 7. costs and interest 6 8. whole agreement 6 8. whole agreement 6 9. assignment 7 9. assignment 7 10. variations 7 10. variations 7 11. invalid terms 7 11. invalid terms 7 12. termination 8 12. termination 8 13. enforceability, rights and remedies 8 13. enforceability, rights and remedies 8 14. counterparts 8 14. counterparts 8 15. governing law 9 15. governing law 9 16. jurisdiction ; waiver of trial by jury 9 16. jurisdiction ; waiver of trial by jury 9 schedule 1 definitions and interpretation 10 schedule 1 definitions and interpretation 10 i i i i relationship agreement dated june 5, 2018 parties : ( 1 ) national energy services reunited corp., a company existing under the laws of the british virgin islands with its registered address at 171 main street, road town, tortola, vb 1110, british virgin islands ( the “ company ” ) ; ( 2 ) nesr holdings limited, a company existing under the laws of the british virgin islands with its registered address at 171 main street, road town, tortola, vb 1110, british virgin islands ( “ nesr holdings ” ) ; and ( 3 ) hana investments co. wll, a company existing under the laws of bahrain with its registered address at office 205, building 111, manama center, road 383, block 304, bahrain ( “ olayan ” ). ( 1 ) national energy services reunited corp., a company existing under the laws of the british virgin