If the chairman has demonstrated in the letter how you played the critical role it should be ok.
I believe that you have enjoyed international recognition for your research accomplishments, so you must have met several of the criteria required. You should make this clear and focus on those criteria, sure it won't hurt to cover every point.
Good luck!
I believe that you have enjoyed international recognition for your research accomplishments, so you must have met several of the criteria required. You should make this clear and focus on those criteria, sure it won't hurt to cover every point.
Good luck!