employer statement letter

Hi...this is my first post

I am working in a research center under faculty of economics in a university which to conduct its activities independently hires its own employee. Now, i am applying for a scholarship and the scholarship committe want a letter stating that i am an employee of this research center not employee of the university nor the faculty. Here i try to write the letter and i hope that you would like to correct it. Thanks in advance
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alternative 1
Letter head

Place and date
EMPLOYER STATEMENT

I, Prof. xxx, Chairman of Lab XXX hereby state that:
Name : my name
Position : Research Asssistant
is independently employed by Lab XXX. Therefore, she is official of Lab XXX not of Uni YYY


Sincerely,

Prof XXX
Chairman of Lab XXX
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alternative 2

Letter head
Place and date

EMPLOYER STATEMENT

I, Prof. xxx, Chairman of Lab XXX hereby state that:
Lab XXX is a research institute under Faculty of Economics Uni YYY which to conduct its activities independently hires its employees under its own regulation, and that:
Name : my name
Position : Research Asssistant
is independently employed by Lab XXX. Therefore, she is official of Lab XXX not of Uni YYY

Sincerely,

Prof XXX
Chairman of Lab XXX

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