1, letter of recommendation to the leader of your company: Thank you very much for taking time out of your busy schedule to check my job application.

Thank you for taking time out of your busy schedule to read my recommendation letter.

Thank you for taking time out of your busy schedule to read my job application materials.

Thank you very much for taking time out of your busy schedule to read my recommendation letter. Now, let me briefly introduce myself.

Thank you very much for the congratulatory letter you sent me when I got my doctorate in chemistry. I sincerely thank you for taking time out of your busy schedule to congratulate me.