Please help me, is the grammar in this sentence correct?

Question

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We need additional justification from you as to why you choose Mr Andy as a consultant for seal of product quality. We need this because based on information on the CV, it shows that his experience in the development of seal of quality of the product is not sufficient. I just want to make sure that Mr Andy is the right man in this position.

Answer 1

We need additional justification from you as to why you chose Mr Andy as a consultant for seal of product quality. According to his CV, his experience seems insufficient. We need to make sure that Mr Andy is the best fit for this position.

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Answer 2

We need additional justification from you as to why you chose Mr. Andy as a consultant for seal of product quality. We need this because, based on information on the CV, his experience in the development (((of seal of quality of the product))) is not sufficient. I just want to make sure that Mr. Andy is the right man in this position.

I made a few changes to it. The part I have in parentheses ((( ))) is still confusing to me. There are a lot of "of"s in it, but it might make more sense if I were familiar with your business.

I hope this helps!

Answer 3

We need additional justificaton from you to know why did you choose Mr Andy as a consultant for seal of product quality. We need these information as those on his CV shows that his experience are not sufficient for this job. I just want to make sure that Mr Andy fits this position.

Answer 4

Could you please provide additional information as to Mr. Andy's qualifications in Quality Control? The information we have does not substantiate your decision of appointing him as consultant for the seal of product quality. We would simply like to ensure that he is the right man for the job.

Answer 5

we...chose for the seal... we...of the seal...i...man for this....