I’m limiting myself to grammar and spelling, per the request. So no advice on content or wording.

“Dear Ms. Smith,”

- Style rules for business correspondence say follow salutations with a colon, not a comma; e.g. “Dear Ms. Smith:”

You need a line break after “Dear Ms. Smith:” .

“I was very impressed to learn that your organizations has expanded your grantees in South East and Central Asia Regions.”

“Organization” should be singular to have subject/verb agreement. (Organization has / organizations have)

“Expanded your grantees”? Unless the grantees themselves got bigger, you probably mean to say that they have “expanded their reach to help more grantees in South Asia” or something along those lines.

“I am excited for the possibility…”

Replace “for” with “about”.

“As I indicated, my passsion, academic background, and work experiences from Bowie State University and the Royal Thai Embassy ”

“Passion” is spelled wrong.

Remove the comma before “and.”

I’d say “Work experiences at” rather than “work experiences for.”

“If you have any questions please feel free to contact me by phone at or e-mail”

You need a comma after “questions.”

Remove “at” after phone.

You need a line break before “Respectfully yours,” .

possibility spelled wrong
passion spelled wrong
Suggestions for change:
Consider a way to restate “expanded your grantees”
Change “my” to “the” before interpersonal

As the previous poster said, take out “at” in the last paragraph after “phone”. Personally, in the first sentence I would use “speak” instead of “talk” (just my preference). Also, in the second paragraph yo need to have “organization has” or organizations have”. The last sentence I would either do “Thank you very much for….”, or “Thank you, again, for…”, or even “Once again, thank you very much for….”.

I agree with chicklit with two additional items:

1) Dear Ms Smith:

2) If you are planning on mailing (most professional way) you need to include your email address.

2nd paragraph: either “organization has” or “organizations have”

Later that paragraph, it might sound better if you say “the interpersonal” rather than “my interpersonal.”

Third paragraph: Add a comma after “if you have any questions,” and check the wording about phone and e-mail.

Other than that, it looks good! Good luck!