Dear Mr.li，
Please accept my resignation as associate chemist at the GERT Institute. I plan to leave my job here on September 30, 19, taking a few days of annual leave just prior to that effective date. As you know, my primary interest has been in the oil and gas industry. Therefore, Ive accepted a position with Fury Refining, Inc., that should put me back in touch with my first love.
Although Im eager to accept the challenges in this new position, I regret leaving the institute. You and the organization as a whole have treated me very well over the past three years. I wont forget the friship and professional growth Ive experienced as an employee here. Best wishes to all of you for years of expansion here.