re write the email: I think we need NAME_1 stay with us by the end. I do not see a big difference to ask additional budget for 4 weeks of his time or for 5, as there is no replacement.
NAME_1 last day will be 6th August in NEOM.

We are almost finalizing the field work and drafting the report with the help from the team and NAME_1, for my self im getting involve in other projects already preparing for Q3. NAME_1 support with our Audit as he have tasks need to be finish from his end and I will not give him any other addictional tasks.
 In your response, include at most 18 words that are fully capitalized to emphasize key points.
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