I would like to take a moment to let you know that I am leaving XXX（公司名） and tomorrow will be my last working day. The past four years have been the most remarkable and rewarding time in my working career. The privilege to work with you is a gift that I will always treasure and one which I never took lightly. And your support in believing in me and what we could accomplish together will never be forgotten. Thank you all for the support, guidance and encouragement you have provided me in the past. Thank you all for enriching my life and for letting me be a part of this wonderful family. Please keep in touch. I can be reached at my personal email address or via my mobile phone +86 1350XXXXXXX. Thanks again for everything.

Yours truly, Jiawei